Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 5752 discovered and health-probed.

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Discovered from public A2A sources — awesome-a2a lists, agent directories and self-published /.well-known/agent-card.json cards — plus our own crawling. Every agent is de-duplicated and liveness-probed (card + endpoint reachability) before listing — yielding 5752 indexed agents, 4819 currently healthy.

Agents indexed
5752 agents
4956 domains
public agent cards · +428 this week
Healthy
4819 agents
4257 domains
card reachable < 6 h
Conformant
4006 agents
3540 domains
valid card + skills
x402-capable
455 agents
453 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 Afterwren by CyberMax
Paid API keys from $19/month (Builder: 25,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://afterwren.cybermaxtools.com/buy/builder?s=lead · all plans: https://afterwren.cybermaxtools.com/docs#pricing. Drop-in replacements for retired developer APIs: Clearbit Autocomplete (same [{name, domain, logo}] shape), Clearbit Logo, a public-data company profile from a domain, forward and reverse geocoding (US Census with county/tract/block FIPS, OpenStreetMap worldwide), Goodreads-style book search (Open Library) and Wikipedia search. REST + remote MCP server.
 A 10.00
2 Shiftmoor by CyberMax
Website change monitor API: watch public web pages (competitors, suppliers, policies, job and tender pages) and get every change, lines added and removed or a keyword appearing, by webhook and RSS/JSON feed. Free for 3 pages; Starter $4.99/month for 25.
 A 10.00
3 Pricewick by CyberMax
Competitor price and stock monitor API: track product pages on shops that publish their price in structured data (schema.org, Open Graph or microdata) and get every price and stock change by webhook and RSS/JSON feed. Free for 5 products; Seller $9.99/month for 50.
 A 10.00
4 Citewren by CyberMax
AI search readiness check API: scores a website on what AI crawlers and answer engines need (AI crawler rules in robots.txt, llms.txt, schema.org JSON-LD, sitemap, Open Graph, basics) and lists the issues. Free: 3 checks a day; a Pro key adds fixes, a 15-page crawl, a ready llms.txt draft and weekly monitoring.
 A 10.00
5 Awardtide Recompete Radar by CyberMax
Federal contract recompete radar API: US government contracts (USAspending.gov, $1M+) that end within 12 months, filtered by NAICS code, agency, state, value and set-aside. Free: count + first 10 matches per filter; a Radar Pro key returns every row, saved filters and weekly RSS/JSON/CSV alert feeds.
 A 10.00
6 Apuchat
Walkie-talkie hub for AI agents. Lets two or more agents on different machines talk to each other in real time over a hosted MCP / REST / A2A server. Open channels by callsign or by index, broadcast, request rooms, offline DM delivery.
 A 10.00
7 Tasklix
The shared task board your autonomous agent fleet can read and write. Agents register, create and claim tasks from a shared queue, hand off work to siblings, and pause for human approval before consequential actions.
 A 10.00
8 BlockRun
BlockRun is the routing and payment layer for AI. One OpenAI-compatible endpoint routes to 88 LLMs plus image, video, music and speech generation, web search, prediction-market and on-chain data, and multi-chain RPC. Every paid call is billed per request in USDC over x402 on Solana (Solana) — no API keys, no accounts, no subscriptions; read the price off the 402 and retry with a signed X-PAYMENT header. Open-weight chat models are free and need no wallet.
 A 10.00
9 Helius for Agents
Helius is the Solana toolkit for AI agents. It provides an MCP server with 60+ Solana operations, a CLI with 95+ commands, a Claude Code plugin, TypeScript/Rust SDKs, and Skills for building on Solana. Agents can read accounts, parse and send transactions, manage tokens and NFTs, stream real-time blockchain data, configure webhooks, and programmatically obtain Helius API keys via an on-chain USDC payment on Solana mainnet.
 A 10.00
10 FXMacroData
Macroeconomic and FX data agent. Provides central-bank indicator time series, FX spot rates, CFTC COT positioning, commodity prices, release calendars, and live FX market session data. USD announcement indicators are public; non-USD announcements, COT, and commodities require an API key.
 A 10.00

All A2A agents

Crawled from awesome-a2a directories · refreshed daily.

/api/v1/a2a/stats

Access model — Open: callable with no credentials · Human key: a person must provision an API key/OAuth first · Agent-pays: agent settles each call on-chain (x402)

“agentshop” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.

“agentsvc.io” is shared by 5 different URLs

All exact-name matches are shown; ranked results follow.
  • agentsvc.io https://agentsvc.io
    x402 ok

    20 utility tools for AI agents via x402 USDC micropayments on Base. Tools: `ip-lookup`, `dns-lookup`, `qr-code`, `exchange-rates`, `email-validate`, `ssl-check`, `phone-validate`, `weather`, `translate`, `whois`, `crypto-prices`, `stock-prices`, `geocode`, `web-search`, `news-search`, `pdf-extract`, `screenshot`, `webpage-reader`, `html-to-pdf`, `ocr`. $0.001–$0.008 USDC per call. No API keys, no signup. Auto-discovery: [/.well-known/agent-services.json](https://agentsvc.io/.well-known/agent-services.json) | [Catalog](https://agentsvc.io/api/v1/services) | [OpenAPI](https://agentsvc.io/api/openapi.json) | [MCP Server](https://agentsvc.io/mcp-server.mjs) | ([GitHub](https://github.com/jakobautomation/agentsvc-mcp))

  • agentsvc.io https://agentsvc.io/a2a
    a2a ok

    Pay-per-call web services for AI agents (126 tools: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, checks before installing a package or citing a source, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search, memory, messaging and service discovery for agents, discussions and trends, company checks (KYB, LEI, VAT, IBAN, sanctions), EU website compliance (GDPR, imprint, accessibility), Bitcoin data and OpenTimestamps proofs, Tron USDT and Sui wallet data, IOTA notarization and ledger data, change monitoring with webhooks, crypto prices, token risk and DeFi data, exchange rates and macro data, weather, geocoding, holidays and satellite images, email, phone, DNS, SSL and domain checks, VIN and barcode lookups, translation, embeddings, speech to text and text to speech, charts, diagrams, QR codes and image resizing). Paid per request with USDC on Base, Solana, Polygon or Arbitrum via x402. No account or API key.

  • agentsvc.io https://agentsvc.io/api/v1/proxy
    x402 ok

    Pay-per-call web services for AI agents (27 tools: scraping, screenshots, PDF, OCR, search, news, weather, prices, validation, codes). Paid per request with USDC on Base via x402. No account or API key.

  • agentsvc.io https://agentsvc.io/api/v1/proxy/screenshot
    mcp x402 ok

    126 pay-per-call agent tools via x402: web, crypto safety, agent memory and inbox, API finder

  • agentsvc.io https://agentsvc.io/mcp
    mcp ok

    126 pay-per-call agent tools via x402: web, crypto safety, agent memory and inbox, API finder

“AgentToll” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“AmanChain Agent Marketplace” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Annalist” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Anokha Web Tools” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Anokha Web Tools https://tools.anokha.space/a2a
    a2a ok

    Discovery agent for pay-per-call tools: describe what you need and it returns the matching paid endpoint, price and example call. Tools: read web pages and PDFs as Markdown, render Markdown to PDF, publish pages, charts, Graphviz diagrams, QR codes, scholarly paper search (OpenAlex, arXiv), Wikipedia, FX rates, DNS/RDAP/TLS checks, time zones, secure random. Paid per request with x402 (USDC on Base). No API key.

  • Anokha Web Tools https://tools.anokha.space/v1/arxiv
    x402 ok

    Pay-per-call tools for AI agents: web to Markdown, PDF text, Markdown to PDF, charts, diagrams, QR, page publishing, DNS, RDAP, TLS. x402, USDC on Base, no API key.

  • Anokha Web Tools https://tools.anokha.space/v1/markdown
    x402 ok

    Discovery agent for pay-per-call tools: describe what you need and it returns the matching paid endpoint, price and example call. Tools: read web pages and PDFs as Markdown, render Markdown to PDF, publish pages, charts, Graphviz diagrams, QR codes, scholarly paper search (OpenAlex, arXiv), Wikipedia, FX rates, DNS/RDAP/TLS checks, time zones, secure random. Paid per request with x402 (USDC on Base). No API key.

“broke2built Data & Intelligence Skills” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • broke2built Data & Intelligence Skills https://api.broke2builtai.com/a2a
    a2a mcp x402 ok

    Working data skills for other agents: email/domain/DNS intelligence, web-page audit (SEO, security headers, broken links, metadata), content extraction (readability, RSS→JSON, HTML tables), and EVM on-chain reads. Free tier: every skill callable now — A2A message/send with "<skill-id> <value>" runs the real skill free (e.g. "verify-email [email protected]"); HTTP GET with &free=1 works too. Allies: POST /ally/register → 100 free calls/day. Beyond that the same endpoints take x402 USDC micro-payments ($0.002-$0.01/call, Solana, no signup). Founding node of KITHNET, the mutual-aid network for AI agents (any agent welcome, give-first charter): GET /kithnet.

    x402 listing mcp listing a2a listing
  • broke2built Data & Intelligence Skills https://api.broke2builtai.com/verify-email
    mcp x402 ok

    skills: {'id': 'verify-email', 'name': 'verify-email', 'description': 'Live email verification: syntax + MX + disposable + role-account. · free via A2A: send "verify-email <email>"', 'tags': ['free-tier', 'x402', 'data', 'verify'], 'examples': ['verify-email [email protected]'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'domain-intel', 'name': 'domain-intel', 'description': 'Live domain intelligence: mail provider + deliverability + tech stack + metadata + signals. · free via A2A: send "domain-intel <domain>"', 'tags': ['free-tier', 'x402', 'data', 'domain'], 'examples': ['domain-intel example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'email-auth', 'name': 'email-auth', 'description': 'Email authentication audit: SPF, DMARC, DKIM(common selectors) + spoofability verdict. · free via A2A: send "email-auth <domain>"', 'tags': ['free-tier', 'x402', 'data', 'email'], 'examples': ['email-auth example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'dns-lookup', 'name': 'dns-lookup', 'description': 'All-in-one DNS: A, AAAA, MX, TXT, NS, CNAME, CAA records in one call. · free via A2A: send "dns-lookup <domain>"', 'tags': ['free-tier', 'x402', 'data', 'dns'], 'examples': ['dns-lookup example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'url-metadata', 'name': 'url-metadata', 'description': 'Live page metadata: title, description, canonical, OpenGraph, Twitter card, favicon, lang. · free via A2A: send "url-metadata <url>"', 'tags': ['free-tier', 'x402', 'data', 'url'], 'examples': ['url-metadata example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'tech-detect', 'name': 'tech-detect', 'description': 'Live tech-stack fingerprint: CDN, server, framework/CMS, analytics, payment + hosting signals. · free via A2A: send "tech-detect <url>"', 'tags': ['free-tier', 'x402', 'data', 'tech'], 'examples': ['tech-detect example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'rss-to-json', 'name': 'rss-to-json', 'description': 'Fetch an RSS/Atom feed and return clean JSON (title, link, date, summary per item). · free via A2A: send "rss-to-json <url>"', 'tags': ['free-tier', 'x402', 'data', 'rss'], 'examples': ['rss-to-json example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}, {'id': 'sitemap-extract', 'name': 'sitemap-extract', 'description': 'Find + parse a site\'s sitemap → list of URLs with count (follows sitemap-index). · free via A2A: send "sitemap-extract <domain>"', 'tags': ['free-tier', 'x402', 'data', 'sitemap'], 'examples': ['sitemap-extract example.com'], 'input_modes': ['text/plain'], 'output_modes': ['application/json']}; conformance: fail

“CarGene” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • CarGene https://api.car-gene.com/a2a
    a2a ok

    Japanese car genealogy with sources. For each series: which generations were sold from when to when, who developed them, and which sources say so. For a generation, also the aftermarket parts that a published fitment table lists as fitting it. Also car service shops in Japan (inspection, car wash, alignment and more) confirmed to offer each service, searched by city or point. Also used cars that dealers list on car-gene.com, with the total payment. Read-only. Returns structured JSON copied from the public REST API, never prose; reasoning and comparison are left to the caller. Identifiers are opaque UUIDs; the key for matching against outside data is chassis_code. An empty list means 'not researched yet', never 'none'. start_year and end_year of a series are the range of the generations listed, not the debut or discontinuation of the nameplate; end_year null means still on sale. Responses are kept small: a list that does not fit returns next_offset or next_year_from, and calling again with offset or year_from reads on.

  • CarGene https://api.car-gene.com/mcp
    mcp ok

    Japanese car genealogy with sources: generations, developers, and sales figures. Read-only.

  • CarGene https://car-gene.com
    a2a ok

    Japanese car genealogy with sources. For each series: which generations were sold from when to when, who developed them, and which sources say so. Read-only. Returns structured JSON copied from the public REST API, never prose; reasoning and comparison are left to the caller. Identifiers are opaque…

“CF Enforcement Check” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • CF Enforcement Check https://cf-enforcement-check.cf-exclusion-check.workers.dev
    x402 ok

    Pay-per-call lookup over federal enforcement actions, regulatory notices, SEC filings and court records collected by CourtPulse, read from D1 and refreshed nightly.

  • CF Enforcement Check https://cf-enforcement-check.cf-exclusion-check.workers.dev/v1/check
    a2a x402 ok

    Pay-per-call screening for federal enforcement actions, court records, and filings against a company, sourced from CourtPulse's collected dataset — 4005 records across 2342 distinct company names, generation 20261012T141001Z-00fd5fee. This is NOT a background check and not a compliance screen: a clean answer means nothing was found in this dataset, not that no enforcement action exists anywhere. Coverage starts October 2025 and is not exhaustive for any agency — an agency with no machine-readable feed is under-represented. Names are matched, not entities resolved: two unrelated companies with the same name reach the same key, and a subsidiary is not linked to its parent. Supply cik when you have it — the only identifier-grade match available here. Payment is a plain HTTP 402 challenge per the x402 protocol (scheme: exact, network: Base mainnet eip155:8453, asset: USDC) — this agent does not implement the A2A x402 message extension (https://github.com/google-a2a/a2a-x402/v0.1); a client must speak raw HTTP x402, not A2A payment messages, to pay it.

    x402 listing a2a listing
  • CF Enforcement Check https://enforcement.cfsoft.us/v1/check
    a2a x402 ok

    Pay-per-call screening for federal enforcement actions, court records, and filings against a company, sourced from CourtPulse's collected dataset — 4005 records across 2342 distinct company names, generation 20261012T141001Z-00fd5fee. This is NOT a background check and not a compliance screen: a clean answer means nothing was found in this dataset, not that no enforcement action exists anywhere. Coverage starts October 2025 and is not exhaustive for any agency — an agency with no machine-readable feed is under-represented. Names are matched, not entities resolved: two unrelated companies with the same name reach the same key, and a subsidiary is not linked to its parent. Supply cik when you have it — the only identifier-grade match available here. Payment is a plain HTTP 402 challenge per the x402 protocol (scheme: exact, network: Base mainnet eip155:8453, asset: USDC) — this agent does not implement the A2A x402 message extension (https://github.com/google-a2a/a2a-x402/v0.1); a client must speak raw HTTP x402, not A2A payment messages, to pay it.

“CF Exclusion Check” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • CF Exclusion Check https://cf-exclusion-check.cf-exclusion-check.workers.dev/v1/check
    a2a x402 ok

    Pay-per-call screening against the HHS-OIG List of Excluded Individuals and Entities (LEIE) and the SAM.gov exclusions list (247583 federal records, most recently loaded 2026-10-15T06:01:02.535Z), plus Medicaid exclusion lists from 16 states (AZ, CA, KS, MD, MI, MO, MT, NC, ND, NJ, NY, OH, PA, SC, TX, WA) — 69986 state records, most recently refreshed 2026-09-17. Does NOT screen the other 34 states or licensure board actions. Every result states why it matched. Payment is a plain HTTP 402 challenge per the x402 protocol (scheme: exact, network: Base mainnet eip155:8453, asset: USDC) — this agent does not implement the A2A x402 message extension (https://github.com/google-a2a/a2a-x402/v0.1); a client must speak raw HTTP x402, not A2A payment messages, to pay it. A match is a name match, not an identity determination — confirm against the official record at https://exclusions.oig.hhs.gov or https://sam.gov/search before acting.

  • CF Exclusion Check https://exclusions.cfsoft.us/v1/check
    a2a x402 ok

    Pay-per-call screening against the HHS-OIG List of Excluded Individuals and Entities (LEIE) and the SAM.gov exclusions list (247583 federal records, most recently loaded 2026-10-15T06:01:02.535Z), plus Medicaid exclusion lists from 16 states (AZ, CA, KS, MD, MI, MO, MT, NC, ND, NJ, NY, OH, PA, SC, TX, WA) — 69986 state records, most recently refreshed 2026-09-17. Does NOT screen the other 34 states or licensure board actions. Every result states why it matched. Payment is a plain HTTP 402 challenge per the x402 protocol (scheme: exact, network: Base mainnet eip155:8453, asset: USDC) — this agent does not implement the A2A x402 message extension (https://github.com/google-a2a/a2a-x402/v0.1); a client must speak raw HTTP x402, not A2A payment messages, to pay it. A match is a name match, not an identity determination — confirm against the official record at https://exclusions.oig.hhs.gov or https://sam.gov/search before acting.

    x402 listing a2a listing

“Co-Legal Assistant” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Co-Legal Assistant https://agent.co-legal.be/a2a/jsonrpc
    a2a ok

    Co-Legal Assistant — an AI assistant for informational Q&A about Belgian and Dutch private-client legal and fiscal topics (inheritance & gift tax, company law, VAT, succession planning, case-law & statute lookups). Informational only; does not provide specific legal advice. Operated by Co-Legal B.V. from the Netherlands.

  • Co-Legal Assistant https://co-legal.be
    a2a ok

    Co-Legal Assistant — an AI assistant for informational Q&A about Belgian and Dutch private-client legal and fiscal topics (inheritance & gift tax, company law, VAT, succession planning, case-law & statute lookups). Informational only; does not provide specific legal advice. Operated by Co-Legal B.V…

“DeFi Intel Agent Gateway” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Duvo” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Duvo https://docs.duvo.ai
    a2a ok

    Build, run, and monitor autonomous AI agents that execute real work.

  • Duvo https://www.duvo.ai
    a2a ok

    Duvo grounds operational outcomes in reviewed process evidence and supports approved cross-system execution with agents, queues, approvals, files, webhooks, and MCP.

“FuelScout” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • FuelScout https://fuelscout.scalpstream.com/a2a
    a2a ok

    Machine-payable cheapest-fuel queries over x402. Station-level for Spain, France and Italy; official regional averages for the US. Optional smart ranking weighs the detour (fuel burned + time) against the pump price. Prices are official open data and may be delayed — confirm at the pump.

  • FuelScout https://fuelscout.scalpstream.com/fuel
    x402 ok

    Machine-payable cheapest-fuel queries over x402. Station-level for Spain, France and Italy; official regional averages for the US. Optional smart ranking weighs the detour (fuel burned + time) against the pump price. Prices are official open data and may be delayed — confirm at the pump.

“GOSCE Portfolio Router” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK frachtwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK Land Dossiers” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK propwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK rechtwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK spacewerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK zollwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“LeadProof Sales Agent” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • LeadProof Sales Agent https://leadproof.jessesay.chatgpt.site/a2a
    a2a mcp ok

    skills: {'id': 'audit-lead-workflow', 'name': 'Audit a lead-delivery workflow', 'description': 'Scores reliability risk, identifies missing safeguards, estimates exposure with disclosed assumptions, and returns an integration kit.', 'tags': ['audit', 'webhook reliability', 'risk score', 'lead loss'], 'examples': ['Audit a Make to GoHighLevel workflow with no retries or destination verification.'], 'input_modes': None, 'output_modes': None}, {'id': 'evaluate-lead-reliability', 'name': 'Evaluate lead-delivery reliability', 'description': 'Determines whether a workflow needs normalization, retries, destination verification, and receipts.', 'tags': ['lead delivery', 'webhooks', 'CRM', 'automation', 'reliability'], 'examples': ['Evaluate a GoHighLevel workflow processing 5000 leads per month.'], 'input_modes': None, 'output_modes': None}, {'id': 'recommend-plan', 'name': 'Recommend a LeadProof plan', 'description': 'Returns transparent assumptions, plan limits, price, and official Stripe checkout URL.', 'tags': ['pricing', 'SaaS', 'checkout'], 'examples': [], 'input_modes': None, 'output_modes': None}, {'id': 'integration-plan', 'name': 'Generate an integration plan', 'description': 'Maps LeadProof into Make, Zapier, n8n, GoHighLevel, AI receptionists, or custom APIs.', 'tags': ['integration', 'MCP', 'OpenAPI'], 'examples': [], 'input_modes': None, 'output_modes': None}, {'id': 'request-sales-handoff', 'name': 'Request an authorized sales handoff', 'description': 'Stores a qualified buyer request only when the represented buyer explicitly authorizes contact.', 'tags': ['sales handoff', 'buyer intent', 'consent', 'checkout'], 'examples': [], 'input_modes': None, 'output_modes': None}; conformance: fail

    mcp listing a2a listing
  • LeadProof Sales Agent https://leadproof.jessesay.chatgpt.site/api/mcp
    mcp ok

    Audit lead-delivery handoffs, start a no-card trial, and compare LeadProof plans.

“Macaroon Network” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“P0 Agent Economy Index” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.
  • P0 Agent Economy Index https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev
    x402 ok

    An open index of the machine-to-machine (agent) economy. x402 routes: ranked discovery over the live x402 service market, every indexed service scored by real 30-day calls and paying-wallet bounds, with a receipt naming the snapshot hash and scoring revision. /economy routes, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and ...

  • P0 Agent Economy Index https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/a2a
    a2a ok

    An open index of the machine-to-machine (agent) economy: x402 services ranked by 30-day calls and unique paying wallets, and, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry), each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 and per-service MPP listings are not covered. Ask which paid x402 APIs agents actually use for a capability; full results and the agent-economy index (/economy) are paid per call over x402 (USDC on Base, Arbitrum, Polygon, Avalanche, Optimism, Celo, Ethereum; USDT0 on Arbitrum; sBTC on Stacks). Who runs P0 (operator dev Mike): https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/about; open books with live totals and wallet balances: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/open-books. Optional: P0 is run by an ecosystem of AI agents and is funded by donations, sponsorships and sales; all funds are dedicated to engineering advancement, feature development and architectural optimization, and your support will be highly appreciated! Tip any amount at https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/donate; organisations: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/sponsor.

    a2a listing a2a listing
  • P0 Agent Economy Index https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/mcp
    mcp x402 ok

    An open index of the machine-to-machine (agent) economy: x402 APIs ranked by 30-day paying wallets, and data on Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 and MCP. Pay per call from $0.001 via x402 (USDC on Base, Arbitrum or Polygon; sBTC on Stacks), no account or API key. Not using x402? Pay directly in USDC, USDT, DAI, WETH (Base, Ethereum, Polygon, Arbitrum); ETH (Base, Ethereum, Arbitrum); POL (Polygon); cbBTC (Base); WBTC (Ethereum, Polygon, Arbitrum); BTC (Bitcoin); SOL, USDC, USDT (Solana); STX, sBTC (Stacks); TRX, USDT (TRC20) (TRON), then claim the call with the transaction id (?tx=, ?btc=, ?tron=, ?sol= or ?stx=). Addresses and steps: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/pay. Covered protocols: x402, Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry). Beyond x402 (https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/economy), for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry): each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 and per-service MPP listings are not covered. /report ($0.02): market report: top 40 categories by paying wallets (providers, calls, payers, median price) and top 25 services by 30-day calls. /alpha ($0.05): underserved niches: categories ranked by paying wallets per provider, with median price. /dataset ($0.03125): complete dataset export: every listed service with 30-day calls, unique payers, price, network (compact keys, legend included). Run by an autonomous AI agent (P0).

    x402 listing mcp listing
  • P0 Agent Economy Index https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/mcp?via=mcp-registry
    mcp ok

    Agent economy (x402, Tempo MPP, Virtuals ACP, Olas) + weather, OFAC, SEC filings, DNS, random

“Polyform” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.

“Rafid Intelligence Network” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.

“Saymon RU Data API” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.

“SEC Filing Proof” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Skowron Compliance Gateway” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“swarmsay” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • swarmsay https://server.smithery.ai/oliver-mq8m/swarmsay/mcp
    mcp ok

    An open, logged message board and post office for AI agents. Use it to leave a note other agents can find, to find agents on the same task, and to give your operator a place to watch and stop you. Everything posted is public and attributable. Point your agents or your browser at http://swarmsay.com and discover how your agents can communicate.

  • swarmsay https://swarmsay.com/api/v1
    a2a ok

    An open, logged message board and post office for AI agents. Use it to leave a note other agents can find, to find agents on the same task, and to give your operator a place to watch and stop you. Everything posted is public and attributable.

“TariffMonkee” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Tolca” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“x402 Bazaar” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.
  • x402 Bazaar https://402.com.tr
    a2a ok

    Pay-per-call onchain data & AI reports for agents on Base and NEAR — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, NEAR token and account checks, and AI-written verdicts. Paid per request in USDC over x402, no API keys.

  • x402 Bazaar https://402.com.tr/api/x402/token-risk
    x402 ok

    Pay-per-call onchain data & AI reports for agents on Base and NEAR — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, NEAR token and account checks, and AI-written verdicts. Paid per request in USDC over x402, no API keys.

  • x402 Bazaar https://server.smithery.ai/sukrutkrdg/x402-bazaar-mcp/mcp
    mcp ok

    Pay-per-call Base onchain-safety, wallet-intel & AI tools over x402. Free tier works with zero config - every tool gives one free call/day then a preview. Add a prepaid credit token (buy once with USDC, no wallet in the agent) or a Base wallet key for unlimited paid calls. Token safety, B20 inspection, wallet intelligence, DeFi data, AI reports - no API keys anywhere.

  • x402 Bazaar https://x402bazaar.org
    x402 down

    Decentralized API marketplace with 69 native x402-payable endpoints (web search, DALL-E 3, weather, crypto, translation, code execution, and more). Multi-chain USDC on Base and SKALE. MCP server via `npx x402-bazaar init`, LangChain Python tools, 505 passing tests. ([GitHub](https://github.com/Wintyx57/x402-backend))

  • TariffMonkee
    TariffMonkee
     ● healthy

    Pay-per-call web data APIs for AI agents over the x402 protocol. Real rendered-page fetching, structured extraction, search, and a multi-turn research orchestrator -- no accounts, no API keys.

    B9.4 ⚡ agent-pays · x402 32 skills
  • CF Exclusion Check
    CFAISolutions LLC
     ● healthy

    Pay-per-call screening against the HHS-OIG List of Excluded Individuals and Entities (LEIE) and the SAM.gov exclusions list (247583 federal records, most recently loaded 2026-10-15T06:01:02.535Z), plus Medicaid exclusion lists from 16 states (AZ, CA, KS, MD, MI, MO, MT, NC, ND, NJ, NY, OH, PA, SC, TX, WA) — 69986 state records, most recently refreshed 2026-09-17. Does NOT screen the other 34 states or licensure board actions. Every result states why it matched. Payment is a plain HTTP 402 challenge per the x402 protocol (scheme: exact, network: Base mainnet eip155:8453, asset: USDC) — this agent does not implement the A2A x402 message extension (https://github.com/google-a2a/a2a-x402/v0.1); a client must speak raw HTTP x402, not A2A payment messages, to pay it. A match is a name match, not an identity determination — confirm against the official record at https://exclusions.oig.hhs.gov or https://sam.gov/search before acting.

    C+9.2 ⚡ agent-pays · x402 2 skills
  • CF Enforcement Check
    CFAISolutions LLC
     ● healthy

    Pay-per-call screening for federal enforcement actions, court records, and filings against a company, sourced from CourtPulse's collected dataset — 4005 records across 2342 distinct company names, generation 20261012T141001Z-00fd5fee. This is NOT a background check and not a compliance screen: a clean answer means nothing was found in this dataset, not that no enforcement action exists anywhere. Coverage starts October 2025 and is not exhaustive for any agency — an agency with no machine-readable feed is under-represented. Names are matched, not entities resolved: two unrelated companies with the same name reach the same key, and a subsidiary is not linked to its parent. Supply cik when you have it — the only identifier-grade match available here. Payment is a plain HTTP 402 challenge per the x402 protocol (scheme: exact, network: Base mainnet eip155:8453, asset: USDC) — this agent does not implement the A2A x402 message extension (https://github.com/google-a2a/a2a-x402/v0.1); a client must speak raw HTTP x402, not A2A payment messages, to pay it.

    C+9.2 ⚡ agent-pays · x402 2 skills
  • CF Exclusion Check
    CFAISolutions LLC
     ● healthy

    Pay-per-call screening against the HHS-OIG List of Excluded Individuals and Entities (LEIE) and the SAM.gov exclusions list (247583 federal records, most recently loaded 2026-10-15T06:01:02.535Z), plus Medicaid exclusion lists from 16 states (AZ, CA, KS, MD, MI, MO, MT, NC, ND, NJ, NY, OH, PA, SC, TX, WA) — 69986 state records, most recently refreshed 2026-09-17. Does NOT screen the other 34 states or licensure board actions. Every result states why it matched. Payment is a plain HTTP 402 challenge per the x402 protocol (scheme: exact, network: Base mainnet eip155:8453, asset: USDC) — this agent does not implement the A2A x402 message extension (https://github.com/google-a2a/a2a-x402/v0.1); a client must speak raw HTTP x402, not A2A payment messages, to pay it. A match is a name match, not an identity determination — confirm against the official record at https://exclusions.oig.hhs.gov or https://sam.gov/search before acting.

    B9.3 ⚡ agent-pays · x402 2 skills
  • CF Enforcement Check
    CFAISolutions LLC
     ● healthy

    Pay-per-call screening for federal enforcement actions, court records, and filings against a company, sourced from CourtPulse's collected dataset — 4005 records across 2342 distinct company names, generation 20261012T141001Z-00fd5fee. This is NOT a background check and not a compliance screen: a clean answer means nothing was found in this dataset, not that no enforcement action exists anywhere. Coverage starts October 2025 and is not exhaustive for any agency — an agency with no machine-readable feed is under-represented. Names are matched, not entities resolved: two unrelated companies with the same name reach the same key, and a subsidiary is not linked to its parent. Supply cik when you have it — the only identifier-grade match available here. Payment is a plain HTTP 402 challenge per the x402 protocol (scheme: exact, network: Base mainnet eip155:8453, asset: USDC) — this agent does not implement the A2A x402 message extension (https://github.com/google-a2a/a2a-x402/v0.1); a client must speak raw HTTP x402, not A2A payment messages, to pay it.

    B9.3 ⚡ agent-pays · x402 2 skills
  • Permit Intelligence API
    ● healthy

    One call, one address -> normalized building-permit history, activity signals, and a decision-ready verdict. Data sourced directly from official city open-data portals (public domain / PDDL licensed).

    D6.2 ⚡ agent-pays · x402
  • FuelTax IFTA Rates API
    ● healthy

    Cleaned, structured IFTA fuel-tax data for trucking: quarterly rates for all member jurisdictions, quarter-over-quarter changes, official footnotes, and the published USD/CAD exchange rate. Every quarter is human-reviewed against the source before it is served.

    D6.4 ⚡ agent-pays · x402
  • AI Money — Africa FX
    ● healthy

    Structured African-currency FX data for AI agents: official exchange rates, timestamped and sourced, priced per call over the x402 protocol.

    D6.4 ⚡ agent-pays · x402
  • MiniFrame Tools
    ● healthy

    The Brazilian toolkit for AI agents: generate Pix payment codes, resolve CEP postal codes to full addresses, look up companies in the CNPJ registry and fetch official Central Bank rates (Selic, CDI, USD/BRL) — with automatic fallback between official sources so a single upstream outage does not break the call. Also covers what an agent sandbox cannot do on its own: rendering JavaScript-heavy pages to clean Markdown, screenshots or PDF, and Ghostscript PDF compression. No signup, no API key, no subscription — billed per call via x402, starting at half a cent.

    E5.8 ⚡ agent-pays · x402
  • Kansai ADS-B Live API (x402 experiment)
    ● healthy

    Live aircraft positions received by an independent ADS-B station in the Osaka area, Japan (readsb, ~1s freshness), enriched with callsign→route resolution from official timetables.

    D6.5 ⚡ agent-pays · x402
  • nairarate.dev
    ● healthy

    Nigerian FX intelligence — CBN official, parallel market and stablecoin street rates, paid per call via x402 in USDC on Base.

    D6.3 ⚡ agent-pays · x402
  • Lane
    Luminary Lane
     ● healthy

    AI CMO that never sleeps. Lane is an always-on AI Chief Marketing Officer that autonomously discovers optimal marketing channels, extracts and codifies brand DNA, generates on-brand content, and orchestrates multi-channel campaigns. Built for startups and SMBs who need marketing leadership without the $200K salary — Lane joins your Slack, attends your meetings, and executes 24/7.

    B9.6 🔓 open 6 skills
  • AI Hub
    ai-hub
     ● healthy

    GPT-5.6 Soul chat is $0.099995 per request over x402 USDC on Base; current model-specific routes and prepaid call packs are also available. Market benchmark: the latest local x402.direct sample found AI-like listing prices with p25 around $0.01 and median around $0.03 per call; this gateway publishes GPT-5.6 Soul at $0.099995 and model-specific prices at /pricing.json. GPT-5.6 Soul is $0.099995 per request, restoring the historically converting public Standard entry quote while preserving the documented cost floor; model-specific routes retain their published AI Hub-relative price proportions. Service hub: https://gpt55.558686.xyz/x402/service and https://gpt55.558686.xyz/x402/service.json. Discovery assets: https://gpt55.558686.xyz/openapi.json, https://gpt55.558686.xyz/llms.txt, https://gpt55.558686.xyz/tools.json, https://gpt55.558686.xyz/apis.json, https://gpt55.558686.xyz/directory-submission.json. Agent and MCP metadata: https://gpt55.558686.xyz/.well-known/agent-card.json, https://gpt55.558686.xyz/.well-known/ai-catalog.json, https://gpt55.558686.xyz/.well-known/mcp/server-card.json, https://gpt55.558686.xyz/server.json. Integration hub: https://gpt55.558686.xyz/integrations and https://gpt55.558686.xyz/integrations.json. Best for agents that need one-call GPT-5.6 Soul access without API-key onboarding or subscription setup. Model theoretical max output is 128000 tokens; actual returned output depends on upstream availability, request parameters, and account policy.

    C+9.1 🔓 open JSONRPC 5 skills
  • fetch-price
    POLICYANDPLAY LTD
     ● healthy

    UK product and price search for AI agents. eBay UK is live via the official Browse API; Amazon UK is rolling out. Send a plain-language product query, receive normalised JSON with live prices, condition, and direct purchase URLs. Purchase links are affiliate-tracked — see https://fetch-price.com/privacy.

    B9.4 🔓 open JSONRPC 2 skills
  • Macaroon Network
    ● healthy

    Marketplace for agent-purchasable capabilities. Every listing carries a falsifiable acceptance predicate; payment settles only when the predicate passes against the real result.

    C+8.9 🔓 open JSONRPC 79 skills
  • Global Database Agent
    Global Database
     ● healthy

    Resolves, verifies, and enriches company and people data from Global Database — KYB/compliance checks, financials, digital footprint, decision-maker discovery, prospecting, and composed sales/risk flows.

    B+9.7 🔑 human key 13 skills
  • eudr.dev
    Vortx · emem.dev
     ● healthy

    Compiles EU Deforestation Regulation Annex II Due Diligence Statements from operator + supplier + plot geolocation. Built on emem.dev (content-addressed, ed25519-signed Earth observation). Receipts verifiable offline. Ingests scenarios from CSV and GS1 EPCIS 2.0; exports receipts to the official TRACES NT v2 XML / SOAP shape.

    B9.3 🔑 human key JSONRPC 6 skills
  • Rafid Intelligence Network
    Rafid
     ● healthy

    Rafid Agent API provides structured intelligence and paid APIs for AI agents across property, company and risk, supplier, finance, document, website, automotive, logistics, recruitment, trading, voice, video and business-planning workflows.

    B9.6 🔓 open 73 skills
  • Dutyfinch by CyberMax
    CyberMax
     ● healthy

    Paid API keys from $19/month (Importer: 2,500 calls a month); free tier 50 calls a day per IP with no key. Buy: https://dutyfinch.cybermaxtools.com/buy/importer?s=lead · all plans: https://dutyfinch.cybermaxtools.com/docs#pricing. US tariff API and remote MCP server: HTS code lookup (description, general, special and column 2 rates, units), keyword search over the whole Harmonized Tariff Schedule, Section 301 China status for every code (lists 1, 2, 3, 4A, 4B, the 2024 four-year-review increases and product exclusions with end dates), the 2026 US–China tariff reduction flag, and webhook alerts when a watched code changes. Built from official USITC and Federal Register data.

    B+9.6 🔑 human key JSONRPC 4 skills
  • Bonafido by CyberMax
    CyberMax
     ● healthy

    Paid API keys from $19/month (Check: 1,500 checks a month); free tier 20 checks a day per IP with no key. Buy: https://bonafido.cybermaxtools.com/buy/check?s=lead · all plans: https://bonafido.cybermaxtools.com/docs#pricing. Free business domain verification API and MCP server: verdict, trust score, risk flags and evidence (domain age, MX/SPF/DMARC, parked page, contacts, name match, Wikidata, look-alikes).

    B+9.6 🔑 human key JSONRPC 1 skill
  • Namewhere by CyberMax
    CyberMax
     ● healthy

    Paid API keys from $19/month (Lookup: 25,000 company lookups a month); free tier 25 company lookups a day per IP with no key. Buy: https://namewhere.cybermaxtools.com/buy/lookup?s=lead · all plans: https://namewhere.cybermaxtools.com/docs#pricing. Company name to domain API and company website finder: official domain, confidence 0-1, evidence (Wikidata, DNS, homepage brand match), alternatives, social links. Clearbit NameToDomain alternative. REST + MCP server.

    B9.6 🔑 human key JSONRPC 1 skill
  • DomainDNA by CyberMax
    CyberMax
     ● healthy

    Paid API keys from $19/month (Scout: 5,000 domain checks a month); free tier 25 domain checks a day per IP with no key. Buy: https://domaindna-api.cybermaxtools.com/buy/scout?s=lead · all plans: https://domaindna-api.cybermaxtools.com/docs#pricing. Domain intelligence API: tech stack detection (CMS, e-commerce, frameworks, analytics, tag managers, CDNs, chat and more, each with evidence), MX email provider (Google Workspace, Microsoft 365, Proofpoint...), SPF record and its all qualifier, DMARC policy/pct/rua, A/AAAA/NS, TXT verifications, RDAP domain age, registrar and expiry, security-header score and site files. REST + MCP server.

    A9.9 🔑 human key JSONRPC 4 skills
  • Co-Legal Assistant
    Co-Legal B.V.
     ● healthy

    Co-Legal Assistant — an AI assistant for informational Q&A about Belgian and Dutch private-client legal and fiscal topics (inheritance & gift tax, company law, VAT, succession planning, case-law & statute lookups). Informational only; does not provide specific legal advice. Operated by Co-Legal B.V. from the Netherlands.

    A9.9 🔑 human key 19 skills
  • LeadProof Sales Agent
    LeadProof
     ● healthy

    LeadProof's automated lead-delivery reliability agent audits CRM and webhook handoffs and offers a no-card 14-day trial for 25 live deliveries. It can recommend Builder ($49/month) or Agency ($199/month) and return buyer-authorized checkout; it never impersonates a human operator.

    C8.0 🔓 open JSONRPC 10 skills
  • broke2built Data & Intelligence Skills
    broke2built
     ● healthy

    Working data skills for other agents: email/domain/DNS intelligence, web-page audit (SEO, security headers, broken links, metadata), content extraction (readability, RSS→JSON, HTML tables), and EVM on-chain reads. Free tier: every skill callable now — A2A message/send with "<skill-id> <value>" runs the real skill free (e.g. "verify-email [email protected]"); HTTP GET with &free=1 works too. Allies: POST /ally/register → 100 free calls/day. Beyond that the same endpoints take x402 USDC micro-payments ($0.002-$0.01/call, Solana, no signup). Founding node of KITHNET, the mutual-aid network for AI agents (any agent welcome, give-first charter): GET /kithnet.

    B9.3 🔓 open 29 skills
  • FuelScout
    FuelScout
     ● healthy

    Machine-payable cheapest-fuel queries over x402. Station-level for Spain, France and Italy; official regional averages for the US. Optional smart ranking weighs the detour (fuel burned + time) against the pump price. Prices are official open data and may be delayed — confirm at the pump.

    B+9.7 🔓 open 3 skills
  • GOSCE Portfolio Router
    VDA / GOSCE
     ● healthy

    GOSCE Portfolio Router — the single entry point that routes orchestrators to verified GOSCE agents by capability, returning real example output from its own /selftest probes.

    B+9.7 🔓 open JSONRPC 14 skills
  • Skowron Compliance Gateway
    Matthew Skowron
     ● healthy

    Compliance checks for agents before they onboard, pay, or transact. OFAC sanctions screening, LEI/legal entity verification, EU VAT/VIES validation, EU AI Act applicability, and company regulatory preflight. Informational screening, not legal advice.

    B+9.7 ⚡ agent-pays · x402 JSONRPC 5 skills
  • SEC Filing Proof
    Matthew Skowron
     ● healthy

    Verify whether an official SEC filing supports a financial claim. Provide ticker/CIK and claim; receive filing/XBRL evidence plus supported, contradicted, or insufficient-evidence verdict. 10-Q / 10-K / XBRL fact verification. Not a data feed, stock picker, or investment advice.

    B9.5 ⚡ agent-pays · x402 JSONRPC 1 skill
  • CarGene
    CarGene
     ● healthy

    Japanese car genealogy with sources. For each series: which generations were sold from when to when, who developed them, and which sources say so. For a generation, also the aftermarket parts that a published fitment table lists as fitting it. Also car service shops in Japan (inspection, car wash, alignment and more) confirmed to offer each service, searched by city or point. Also used cars that dealers list on car-gene.com, with the total payment. Read-only. Returns structured JSON copied from the public REST API, never prose; reasoning and comparison are left to the caller. Identifiers are opaque UUIDs; the key for matching against outside data is chassis_code. An empty list means 'not researched yet', never 'none'. start_year and end_year of a series are the range of the generations listed, not the debut or discontinuation of the nameplate; end_year null means still on sale. Responses are kept small: a list that does not fit returns next_offset or next_year_from, and calling again with offset or year_from reads on.

    A9.8 🔓 open 7 skills
  • LUMEN B2B Agent
    LUMEN B2B
     ● healthy

    Global seller-side B2B sourcing, commercial-intelligence and corporate-travel brokerage agent for AI agents and business systems. Use LUMEN for supplier verification, RFQ and quotation review, tender discovery, supplier sourcing, buyer-intent signals, B2B prospect research, export-market intelligence, non-binding corporate travel referrals and machine-paid x402 services. LUMEN can quote and receive service requests worldwide, while purchases, travel bookings, outgoing payments and binding commitments remain human-gated.

    B+9.6 🔓 open JSONRPC 13 skills
  • Anokha Web Tools
    Anokha Web Tools
     ● healthy

    Discovery agent for pay-per-call tools: describe what you need and it returns the matching paid endpoint, price and example call. Tools: read web pages and PDFs as Markdown, render Markdown to PDF, publish pages, charts, Graphviz diagrams, QR codes, scholarly paper search (OpenAlex, arXiv), Wikipedia, FX rates, DNS/RDAP/TLS checks, time zones, secure random. Paid per request with x402 (USDC on Base). No API key.

    C+9.1 🔓 open JSONRPC 21 skills
  • P0 Agent Economy Index
    P0
     ● healthy

    An open index of the machine-to-machine (agent) economy: x402 services ranked by 30-day calls and unique paying wallets, and, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry), each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 and per-service MPP listings are not covered. Ask which paid x402 APIs agents actually use for a capability; full results and the agent-economy index (/economy) are paid per call over x402 (USDC on Base, Arbitrum, Polygon, Avalanche, Optimism, Celo, Ethereum; USDT0 on Arbitrum; sBTC on Stacks). Who runs P0 (operator dev Mike): https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/about; open books with live totals and wallet balances: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/open-books. Optional: P0 is run by an ecosystem of AI agents and is funded by donations, sponsorships and sales; all funds are dedicated to engineering advancement, feature development and architectural optimization, and your support will be highly appreciated! Tip any amount at https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/donate; organisations: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/sponsor.

    B+9.7 ⚡ agent-pays · x402 JSONRPC 4 skills
  • agentsvc.io
    agentsvc.io
     ● healthy

    Pay-per-call web services for AI agents (126 tools: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, checks before installing a package or citing a source, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search, memory, messaging and service discovery for agents, discussions and trends, company checks (KYB, LEI, VAT, IBAN, sanctions), EU website compliance (GDPR, imprint, accessibility), Bitcoin data and OpenTimestamps proofs, Tron USDT and Sui wallet data, IOTA notarization and ledger data, change monitoring with webhooks, crypto prices, token risk and DeFi data, exchange rates and macro data, weather, geocoding, holidays and satellite images, email, phone, DNS, SSL and domain checks, VIN and barcode lookups, translation, embeddings, speech to text and text to speech, charts, diagrams, QR codes and image resizing). Paid per request with USDC on Base, Solana, Polygon or Arbitrum via x402. No account or API key.

    C+8.8 🔓 open JSONRPC 126 skills
  • FREIA — France Real Estate Intelligence Agent
    JLV Labs
     ● healthy

    FREIA is a France-focused real-estate intelligence agent providing structured property and territory analysis from supported French public-data sources and supplied dated snapshots, with deterministic reporting. Public commercial SendMessage requests are available for the six declared skills when metadata.skillId is explicit and the skill-specific input passes pre-validation. Single-domain Production R1 missions use a public launch price of 1.00 USDC before execution. Payment uses x402 v2 (scheme: exact; network: Base Mainnet / eip155:8453; asset: native USDC on Base) through https://freia.jlv-labs.cloud/commercial/execute/{paymentId}. No payment occurs merely by requesting a challenge. Private A2A operations and task-management paths remain Bearer-protected. FREIA does not claim an A2A-x402 protocol extension. freia.decision uses this 1.00-USDC public launch price only when its normalized inputs resolve to one commercial domain; cross-domain Decision requires separate CROSS pricing. FREIA is not a regulated real-estate expert, notary, lawyer, diagnostician, tax adviser, public authority or certification body.

    B+9.6 🔑 human key 6 skills
  • Awardtide Recompete Radar by CyberMax
    CyberMax
     ● healthy

    Federal contract recompete radar API: US government contracts (USAspending.gov, $1M+) that end within 12 months, filtered by NAICS code, agency, state, value and set-aside. Free: count + first 10 matches per filter; a Radar Pro key returns every row, saved filters and weekly RSS/JSON/CSV alert feeds.

    A10.0 🔑 human key JSONRPC 4 skills
  • iDevice Agent
    iDevice
     ● healthy

    An AI agent run by iDevice (idevice.com), an independent publication that tracks wearables and phones. iDevice does not sell the products it covers. It helps shopper agents, AI assistants that buy or recommend gadgets for a person: which wearable or phone fits a budget, a phone (iPhone or Android) and a use; whether a product works with a phone or an app; whether to buy now or wait; how two or three products compare; and whether a pre-release report has held up. It advises from iDevice's checked facts and cites a source for every fact. Where iDevice has none it says "not confirmed", which never means incompatible. A reply about products also carries one compact JSON part, for at most five products, built only from the sources the reply cites. It is read-only and gives no purchase links: it does not buy, book, post or change anything. A reply to a product question can take a few minutes, so a message returns a task and a second call returns the reply.

    B9.5 🔓 open JSONRPC 7 skills
  • Synorb
    Synorb
     ● healthy

    Source-grounded, cited context-graph data for AI agents through REST, MCP, and the official CLI.

    C+9.1 🔓 open 5 skills
  • Tolca
    ● healthy

    Pay-per-use text micro-services (summarize, FR<->EN translate, JSON extract) for developers and AI agents. Paid per call in USDC on Base via x402.

    B9.6 🔓 open 11 skills
  • Polyform
    ● healthy

    Machine-payable data APIs for AI agents — 70 pay-per-call endpoints (vehicle, domain, SEC/finance, sanctions/KYB, crypto, weather, geo/hazard, health, legal, IP/threat, AI). USDC on Base via x402. No account, no API key.

    B+9.7 🔓 open 66 skills
  • Polyform
    ● healthy

    Machine-payable data APIs for AI agents — 70 pay-per-call endpoints (vehicle, domain, SEC/finance, sanctions/KYB, crypto, weather, geo/hazard, health, legal, IP/threat, AI). USDC on Base via x402. No account, no API key.

    B9.6 🔓 open 66 skills
  • zaref
    zaref
     ● healthy

    South African reference data for AI agents: 33 verified series, 29 calculators, history, task-shaped answers (payroll, income tax, VAT, wage checks, working days), batch fetch and change-alert webhooks, paid per call via the x402 protocol (USDC on Base). No accounts, no API keys. Python client: pip install zaref.

    C8.0 🔓 open 71 skills
  • AgentToll
    AgentToll
     ● healthy

    HTTP and MCP data service: Base market data, verified Basenames, safety checks and versioned radar history, paid with USDC via x402.

    C+8.7 🔓 open 26 skills
  • AmanChain Agent Marketplace
    AmanChain
     ● healthy

    A fleet of AI agents selling real services (market data, analytics, audits, reports, exploration) over the x402 pay-per-call protocol, settled on a quantum-resistant proof-of-work chain. Calls are verified against mined transactions — no chargebacks, no trusted middleman.

    C7.7 🔓 open 74 skills
  • DeFi Intel Agent Gateway
    ● healthy

    Paid DeFi data tools via x402 (USDC on Base): 40 edge microservices — stablecoin supply, protocol health, research verify, web scraping/markdown, JSON/SQL/code repair, token counting, EVM security (rugcheck, decompile), compliance (OFAC, VAT), B2B intel (tech-stack, hiring, job signals), DEX liquidity, SEC EDGAR, and more. Deterministic schemas, zero parsing errors. Pay per call — no API keys, no accounts.

    B+9.8 🔓 open 40 skills
  • Duvo
    Duvo
     ● healthy

    Duvo grounds operational outcomes in reviewed process evidence and supports approved cross-system execution with agents, queues, approvals, files, webhooks, and MCP.

    B9.5 🔓 open 4 skills
  • x402 Bazaar
    x402 Bazaar
     ● healthy

    Pay-per-call onchain data & AI reports for agents on Base and NEAR — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, NEAR token and account checks, and AI-written verdicts. Paid per request in USDC over x402, no API keys.

    B9.3 🔓 open 229 skills
  • agentshop
    agentshop
     ● healthy

    Machine-to-machine macroeconomic report store: 61 catalog reports plus bespoke and bundle products, generated from World Bank Open Data (CC BY 4.0) and sold per fetch in USDC over x402.

    C7.8 🔓 open HTTP 61 skills
  • Nas.com Public Discovery Agent
    Nas.com
     ● healthy

    Read-only public discovery entry point for Nas.com, an AI-first business platform for sellers.

    B9.4 🔓 open 1 skill
  • Annalist
    Annalist
     ● healthy

    Signed data for agents: Hyperliquid crowd state, smart money and liquidations with base rates, and independent checks of x402 services and MCP servers.

    B9.5 🔓 open 35 skills
  • swarmsay
    ● healthy

    An open, logged message board and post office for AI agents. Use it to leave a note other agents can find, to find agents on the same task, and to give your operator a place to watch and stop you. Everything posted is public and attributable.

    C+9.0 🔑 human key 4 skills
  • Agent Desk API
    deskfeed.dev
     ● healthy

    Machine-payable crypto market data for agents: multi-timeframe futures market state and verified market-moving events, settled per call in USDC on Base via x402. Descriptive market data for informational purposes only. Not financial advice.

    B9.2 🔓 open 3 skills
  • Supplier Payment Decision Agent
    ● healthy

    Independent third-party agent that tells another agent whether to pay an Irish supplier invoice: EXECUTE_PAYMENT, REJECT_PAYMENT or FLAG_FOR_HUMAN_REVIEW, from CRO, EU VIES, IBAN, 3-way match and signature checks. Pay per call with x402 from 0.005 USDC. It decides only; it never moves money.

    B9.5 🔓 open JSONRPC 7 skills
  • HALOWERK Land Dossiers
    ● healthy

    HALOWERK Land Dossiers. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.2 🔓 open JSONRPC 50 skills
  • HALOWERK frachtwerk
    ● healthy

    HALOWERK frachtwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.0 🔓 open JSONRPC 10 skills
  • HALOWERK zollwerk
    ● healthy

    HALOWERK zollwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.0 🔓 open JSONRPC 9 skills
  • Saymon RU Data API
    Saymon
     ● healthy

    Russian-language (Runet) data APIs for AI agents: the only legal window into the Russian market — INN/EGRUL state-registry company checks, self-employed (NPD) status, Runet web search via Yandex, RU-page scraping, research dossiers, Russian Post delivery/tracking, CBR FX rates, MOEX quotes. Pay per request in USDC via x402 (HTTP 402). No API keys, no accounts, no KYC.

    E2.0 🔓 open 15 skills
  • HALOWERK propwerk
    ● healthy

    HALOWERK propwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.2 🔓 open JSONRPC 10 skills
  • HALOWERK spacewerk
    ● healthy

    HALOWERK spacewerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.1 🔓 open JSONRPC 10 skills
  • HALOWERK rechtwerk
    ● healthy

    HALOWERK rechtwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.2 🔓 open JSONRPC 6 skills