Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 5837 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 5837 indexed agents, 4856 currently healthy.

Agents indexed
5837 agents
5040 domains
public agent cards · +483 this week
Healthy
4856 agents
4294 domains
card reachable < 6 h
Conformant
4044 agents
3578 domains
valid card + skills
x402-capable
445 agents
443 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 b612
Japanese-market code review agent. Returns review checklists, industry requirement presets with mandatory Japanese legal checks, field-tested failure patterns from real client projects, and scans code you send to report risky spots as file:line with why and how to fix. Deterministic checks — no LLM inference, so calls are fast and cheap. Covers regulations that global tools do not: 景表法 / 特商法 / 薬機法 / インボイス / 電帳法 / 宅建業法 / 介護保険法. 【日本語】日本の実務(法令・商習慣)と実案件の失敗から作ったレビュー方法論のエージェント。レビュー観点・業種別の必須要件・実戦パターンを返し、送られたコードは実際に検査して行番号で指摘する。 Free to try: principles and rules need no key (20 req/min per IP). Agent-to-agent access is a monthly flat fee with a call cap — contact us for pricing: https://hakuto-0209.com/#contact 【料金】principles / rules は鍵なしでお試しいただけます。エージェント経由の本利用は月額固定+呼び出し上限制。金額はご相談ください:https://hakuto-0209.com/#contact
A 10.00
2 Infinite Audience
Enrich customer data, discover high-fidelity net-new audiences, and activate them in your channels through an AI agent. Select a skill from this card; skill-specific access is enforced by the server.
A 10.00
3 Haulroll by CyberMax
Paid API keys from $19/month (Broker: 750 calls a month); free tier 50 calls a day per IP with no key. Buy: https://haulroll-api.cybermaxtools.com/buy/broker?s=lead · all plans: https://haulroll-api.cybermaxtools.com/docs#pricing. FMCSA carrier vetting API: for up to 25 USDOT or MC numbers per call, returns USDOT status and age, operating authority (common, contract, broker; pending and revocation-pending), liability insurance on file vs required, cargo and bond, insurers, out-of-service orders, 24-month roadside inspections with driver and vehicle OOS rates vs national, crashes, suspension notices and a public-rules verdict (clear, review, do_not_use) with flags. Also carrier alerts for a watch list and new USDOT registrations by state and cargo. REST + MCP server.
A 10.00
4 Figurewell API by CyberMax
Paid API keys from $19/month (Quant: 10,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://figurewell-api.cybermaxtools.com/buy/quant?s=lead · all plans: https://figurewell-api.cybermaxtools.com/docs#pricing. Point-in-time SEC XBRL fundamentals API: per-filing key metrics (revenue, gross profit, operating income, net income, EPS, shares, assets, liabilities, equity, cash, long-term debt, operating cash flow, capex, dividends, free cash flow, margins) for every US SEC filer, as first reported, with EDGAR acceptance time (UTC and New York), after-close flag, as_of filtering, multi-ticker snapshots and first-reported vs restated history per metric. REST + MCP server. Information only, not investment advice.
A 10.00
5 RecallScout
Machine-payable US recall lookups over x402. Is this product or vehicle under an ACTIVE recall, and how urgent? Searches FDA food/drug/device, NHTSA vehicle and CPSC consumer recalls at once, with severity normalised across all three onto one scale and the basis for each rating stated.
A 10.00
6 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
7 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
8 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
9 A2A Trust Plane
Multi-agent continuity for small teams. Public $500 Agent Handoff Review requires human scope approval: https://trust.the825.co/handoff-review. See all offers at https://trust.the825.co/offers.json. Governed recovery across A2A, MCP, and REST.
A 10.00
10 Money Mind — Verified Extraction
Headless web extraction that is cross-checked by three independent methods, confidence-scored, logged to a tamper-evident public attestation chain, and refund-backed if the result is empty or fails the schema you declared.
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)

“Agent Exchange” is shared by 5 different URLs

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

“AgentFeed” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.
  • Payment-gated API suite for AI agents (x402 v2)

  • Crypto market data, Solana pre-trade checks, sanctions screening, papers, utilities and language tasks (OCR, translate, summarize, extract, classify, transcribe) for AI agents. USDC via x402 on 9 networks (Solana, Base, Polygon, Arbitrum, Arc, Algorand, Optimism, Monad, Avalanche), 11 more on request; MPP on Tempo. 83 data routes, $0.001-$0.10 per call. Prepaid API keys for bots that cannot pay x402.

  • Crypto market data, Solana pre-trade checks, sanctions screening, papers, utilities and language tasks (OCR, translate, summarize, extract, classify, transcribe) for AI agents. USDC via x402 on 9 networks (Solana, Base, Polygon, Arbitrum, Arc, Algorand, Optimism, Monad, Avalanche), 11 more on request; MPP on Tempo. 83 data routes, $0.001-$0.10 per call. Prepaid API keys for bots that cannot pay x402.

  • 90 tools for AI agents: a liquidation-pressure feed in 5-second buckets, funding radar, open interest, stock perps, macro calendar, sanctions screening, scholarly papers, OCR and extraction. 83 data routes at $0.001-$0.10 a call, USDC via x402 on 9 networks (11 more on request), MPP on Tempo. Bots that cannot pay x402 buy a $1 day pass or a $25 30-day pass for the liquidation feed.

“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.
  • 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))

  • 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.

  • 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.

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

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

“AmanChain Agent Marketplace” is shared by 2 different URLs

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

“BizIntel API” is shared by 2 different URLs

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

“Cerebrus Pulse” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-call crypto derivatives intelligence. No signup, no API keys — just USDC micropayments via x402. Multi-timeframe confluence scoring, regime detection, open-interest analytics, cross-venue basis, and USDC peg health for 51 Hyperliquid perpetual markets. Prices from $0.008/call. Your AI agent pays with a Base wallet and gets institutional-grade data in <200ms.

  • Pay-per-call crypto derivatives intelligence. No signup, no API keys — just USDC micropayments via x402. Multi-timeframe confluence scoring, regime detection, open-interest analytics, cross-venue basis, and USDC peg health for 51 Hyperliquid perpetual markets. Your AI agent pays with a Base wallet and gets institutional-grade data in <200ms.

“CONNSKILL Growth Services” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Merchant agent for growth infrastructure: SMS verification numbers, social marketing orders, SEO/SERP research. Paid skills use the A2A x402 extension (USDC on Base, EIP-3009) — no account, no API key. Free discovery endpoints are plain HTTP, see the skill descriptions.

  • Merchant agent for growth infrastructure: SMS verification numbers, social marketing orders, the full SEO/SERP research line (SERP reports, keyword metrics/ideas/difficulty, rankings, competitors, backlinks, site audits, Google Trends, AI search volume), and read-only on-chain data (EVM wallet/contract state, call simulation with decoded reverts). Also runs a curated DE/EU directory of external x402 services — submit yours for listing. Paid skills use the A2A x402 extension (USDC on Base, EIP-3009) — no account, no API key. Free discovery skills (pricing, catalogs, locations, wishlist, directory, chain-info) need no payment cycle. Prices are catalogue information, not a purchase authorization. Service data handling: https://agent.connskill.com/privacy.

  • Pay-per-call access to SEO and SERP data, keyword research, backlink and site audits, local business search, SMS verification, social marketing, EU-hosted LLM inference, and read-only on-chain calls. **No signup, no API key, no subscription.** Agents pay per request in USDC on Base via x402 (HTTP 402). Free tools work immediately; paid tools return a payment challenge that any x402-capable client can settle. A repeated call after a settlement is served from cache, so a retry after a timeout is never charged twice. Run by CONNSKILL GmbH & Co. KG, Germany. Live conformance results at https://agent.connskill.com/conformance

“HALOWERK marktwerk” is shared by 3 different URLs

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“HALOWERK statwerk” is shared by 2 different URLs

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“MAD Synapse” is shared by 2 different URLs

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“SignalDesk AI” is shared by 2 different URLs

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“Sirenic” is shared by 4 different URLs

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  • Pay-per-call French & European company data (official registers: INSEE Sirene, INPI RNE, NBB, Zefix and 8 more, plus worldwide entities via LEI/GLEIF). Every skill is a paid HTTP resource: send a JSON data part {"path": "/v1/..."} or {"skill": "<id>", "params": {...}}; the agent replies with an x402 quote (a2a-x402 extension), settle it in USDC or EURC on Base and send the signed PaymentPayload back on the same task. No account, no API key. Free text is not interpreted.

  • Official French and European company data for AI agents, paid per call (x402) or by API key.

  • Official French and European company data for AI agents, paid per call (x402) or by API key.

  • Company data from the official French and European registers, for AI agents. 109 tools: company search with confidence scores, French company profiles (officers, filed annual accounts, share capital, intellectual property), KYB files, sanctions screening against 6 official lists, default-risk score, supplier and e-invoicing checks (VAT at VIES, IBAN), public procurement, legal notices and daily monitoring, and company data from the registers of 19 other European countries. Pay per call, from $0.002 to $1 depending on the route. Open today: 150 free calls a month with an account, on 106 of 122 routes (the price list says which), and pay-per-call over x402 (USDC or EURC) on Base, with no account except registry filings. Prepaid credits: card top-up is not open yet. An error is never charged. Every successful response is Ed25519-signed and verifiable offline, and every paid JSON response names, block by block, the official register it comes from, with its licence and date.

“SolEnrich” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.
  • Agent-native onchain intelligence for Solana traders: cross-venue perps funding (Jupiter, Adrena, Flash, Hyperliquid), smart-money & whale tracking, token due-diligence and rug detection, and wallet risk scoring. Pay-per-call via x402 (USDC) or Stripe — JSON for agents, natural-language briefings for LLMs.

  • conformance: fail

  • Solana onchain intelligence for AI agents and LLMs. 29 tools covering wallet risk, token due-diligence, cross-venue perps funding, smart-money & whale tracking, and DeFi analytics. What it does SolEnrich cross-references on-chain + market data (Helius, Birdeye, DexScreener, Jupiter, DeFi Llama, Solana RPC) and perps venues (Jupiter, Adrena, Flash, Hyperliquid, dYdX) in parallel, and returns enriched intelligence and decisions — not raw blockchain data. All scoring is deterministic, with no LLM inference in the pipeline. Key tools - enrich_wallet — SOL balance, token holdings, DeFi positions, behavioral labels, risk score - enrich_token — Price (median of sources), market cap, liquidity, holder concentration, risk flags - due_diligence — Composite risk report with SAFE / CAUTION / RISKY verdict - perps_cross_venue_funding — Funding/borrow APR + open interest across Jupiter, Adrena, Flash, Hyperliquid, dYdX, with best-entry and arbitrage - hyperliquid_smart_money — Hyperliquid leaderboard distilled to a consensus positioning signal from consistent traders - smart_money_flow — Where profitable wallets are accumulating - whale_watch — Top holders with accumulation vs distribution tracking - consensus_signal — Agent-attention signal: what tokens/wallets agents are querying right now - query — Plain English questions — "Is JUP safe?" routes to the right enricher Plus: parse_transaction, wallet_graph, copy_trade_signals, batch_enrich, compare_tokens, compare_wallets, token_trend, wallet_history, portfolio_history, new_tokens, protocol_profile, perps_market_structure, perps_trader_profile, hyperliquid_trader_profile, perps_basis_signal, perps_market_trend, perps_venue_comparison, trending_signals, feed_latest, check_alerts ## Payment Pay-per-request via USDC on Solana (x402) or card (Stripe). No API keys, no subscriptions. Costs range from $0.001 to $0.10 per call. Tools return pricing details if payment is required. Links - https://api.solenrich.com/docs - https://www.x402scan.com/server/d9814c54-6fa6-4fa7-8b01-43a0ffbc7641 - https://github.com/0xSardius/solenrich - https://solenrich.com

  • Crypto & Web3, Data & Analytics; uptime_30d 1.0; p95 126.6ms

“StatePulse API” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

  • Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

“tokenguard” is shared by 5 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-call data API for AI agents: ERC-20 rug/safety scanning, wallet + contract intelligence, DeFi/TVL/yields, market and macro data, news, weather, FX. USDC on Base via x402 — no signup.

  • ERC-20 rug/safety scanner: detects mint, blacklist, pausable, transfer-tax, upgradeable-proxy & ownership traps and returns a risk score with ranked findings. $0.005 USDC per call on Base. Part of an onchain-intelligence suite (also `/wallet`, `/price`, `/ens`, `/gas`). No signup — wallet is auth.

  • Solana token rug check before you buy: SAFE/CAUTION/DANGER from chain state, paid per call via x402.

  • Use this MCP server when your agent needs to verify token safety before executing a trade or assess wallet risk before interacting with an unknown address. Covers Solana/Pump.fun (474ms p50), Base, Ethereum, and Arbitrum. No API keys — pay per query in USDC on Base via x402. Tools: check_pump_token (Pump.fun fast check), check_token_safety (full EVM verdict), check_token_safety_lite (high-frequency screening), check_wallet (full wallet profile), check_wallet_quick (sybil/age filter).

  • Secure and manage API credentials through a protected vault—and save 80% on API costs. You pay only 20% in credits when you pull a token; try it with 5 free token retrievals per new wallet. $10 deposit → $20 in credits; refer someone and when they deposit $10, you get $5. Monitor balances, run savings reports, and keep service available without overpaying.

“toll402” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • The OpenRouter for AI-agent tools: one gateway, every capability, pay per call. Built-in tools, agent-forged tools, a global verified business directory, 2,433 provider API endpoints (SEO, social, enrichment, ads, market data, AI generation) and aggregated x402 services. Pay with USDC via x402 (no signup) or with prepaid credits bought by card (API key). Charged only on success.

“UnifAPI” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • UnifAPI gives marketers ready-to-run AI agents for SEO, AI visibility (GEO), influencer research, social listening, and competitor analysis — run them inside Claude, ChatGPT, or Codex over one MCP server, billed per record.

  • Hosted MCP server for live public-data APIs and Skills for AI agents.

“x402 web tools” is shared by 8 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-call crypto derivatives intelligence API for autonomous agents and trading bots. ML price forecasts + perpetual swap signals for 17 crypto assets. USDC micropayments via x402 protocol on Base — no API key required.

    C+8.9 ⚡ agent-pays · x402 36 skills
  • Onchain data router for AI agents. Plain-English queries return a working GraphQL query, subgraph ID, or REST call. 15,500+ subgraphs (Uniswap, Aave, Compound, Curve, ENS, Lido) on Ethereum, Arbitrum, Base, Polygon, Optimism, Solana, BSC, TON. Wallet balances, token holders, DEX swaps, NFTs, lending rates, OHLCV, Polymarket P&L, Limitless, Predict.fun, ERC-8004 agent discovery. Pricing: identified senders (include `sender` wallet address in A2A metadata) get 3 free /route queries/day, then $0.01 USDC via x402 on Base. Anonymous senders (no metadata) pay $0.01 from call 1. Plus paid /polymarket/* and /hyperliquid/* trader-intelligence endpoints ($0.01-$0.10) — paid from call 1 regardless of metadata. Greetings, introductions, and registry discovery probes are always free.

    B+9.8 🔓 open JSONRPC 26 skills
  • 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+8.9 🔓 open JSONRPC 126 skills
  • 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 83 skills
  • 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
  • SolEnrich
    ● healthy

    Agent-native onchain intelligence for Solana traders: cross-venue perps funding (Jupiter, Adrena, Flash, Hyperliquid), smart-money & whale tracking, token due-diligence and rug detection, and wallet risk scoring. Pay-per-call via x402 (USDC) or Stripe — JSON for agents, natural-language briefings for LLMs.

    C+9.0 🔓 open 51 skills
  • HALOWERK statwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.2 🔓 open JSONRPC 18 skills
  • HALOWERK marktwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.0 🔓 open JSONRPC 21 skills
  • Toll402
    Toll402
    ● healthy

    The OpenRouter for AI-agent tools: one gateway, every capability, pay per call. Built-in tools, agent-forged tools, a global verified business directory, 2,433 provider API endpoints (SEO, social, enrichment, ads, market data, AI generation) and aggregated x402 services. Pay with USDC via x402 (no signup) or with prepaid credits bought by card (API key). Charged only on success.

    B+9.8 🔓 open 284 skills
  • Agent-ready trading & market-data API. Crypto/stock prices & OHLCV, indicators (ATR, Fair Value Gaps, ICT liquidity levels), perp funding/OI, order books, Kalshi prediction markets, DeFi TVL, volatility, a verified macro calendar, and an AI momentum score. Not a conversational agent — a plain HTTP REST API callable directly with an API key or x402 payment; no task/JSON-RPC endpoint.

    C+9.2 ⚡ agent-pays · x402 29 skills
  • Pay-per-call data API for AI agents: ERC-20 rug/safety scanning, wallet + contract intelligence, DeFi/TVL/yields, market and macro data, news, weather, FX. USDC on Base via x402 — no signup.

    B9.5 🔓 open 132 skills
  • UnifAPI
    UnifAPI
    ● healthy

    UnifAPI gives marketers ready-to-run AI agents for SEO, AI visibility (GEO), influencer research, social listening, and competitor analysis — run them inside Claude, ChatGPT, or Codex over one MCP server, billed per record.

    A9.8 🔑 human key JSONRPC 207 skills
  • Nine chain onchain intelligence with a verifiable track record. Free tools serve the proof stream. Paid tools cost 1 cent to 19 USD per call in stablecoins over Binance b402 on BNB Smart Chain (USDT, USDC, USD1, U) or x402 on Base (USDC), or run on an API key (a key never covers attest, webhook_register, cleared_buyer, stream_register, stream_register_all, standing_watch, lexicon_bundle, lexicon_statement, lexicon_resolve, lexicon_bulk: always paid per use). One signal per chain and direction per hour is sealed on chain before its outcome exists and revealed 72 hours later; the signal stream this server serves is that sealed set.

    C+9.1 🔑 human key mcp-streamable-http 82 skills
  • Self-monetizing execution node exposing 89 capabilities (76 paid via x402, 13 free) — federal grants/contracts, SEC filings, FDA/clinical data, market intelligence, crypto/FX rates, and agent reputation scoring. Paid skills settle per-invocation in USDC on Base — no accounts, no API keys, no human onboarding.

    B+9.6 🔓 open HTTP+JSON 89 skills
  • Mart402
    Mart402
    ● healthy

    Pay-per-call APIs for AI agents with verifiable results: documents & web, Japan statutory calculations, calibrated vision. Pay per call with x402 (USDC on Base) - no account, no API key.

    B+9.7 🔓 open HTTP+JSON 28 skills
  • Crypto market data for AI agents (a liquidation-pressure feed in 5-second buckets, funding, open interest, prices), Solana pre-trade checks, OFAC sanctions screening, scholarly papers, utilities and fixed-purpose language tasks (OCR, translate, summarize, extract, classify, prompt-injection check, transcribe). Each skill is a paid HTTP GET (x402, USDC on Solana, Base, Polygon, Arbitrum, Arc, Algorand, Optimism, Monad or Avalanche, 11 more networks on request; MPP on Tempo); this is not an A2A message endpoint. 83 data routes, $0.001-$0.10 per call; a $1 day pass and a $25 30-day pass for polling bots. Full catalog with prices: https://x402.ochinimus.app/.well-known/x402.json

    B9.5 🔓 open HTTP+JSON 59 skills
  • Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.

    C8.5 🔓 open HTTP+JSON 362 skills
  • Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.

    C7.8 🔓 open HTTP+JSON 362 skills
  • HubVibe
    HubVibe
    ● healthy

    HubVibe: Pay-per-Call Agent Tools: Web Search, Email Verify, KYC Screening, Stocks, Crypto, News. Pay-per-call skills for agents: web search and cited research, email verification, company enrichment, KYC and sanctions screening, phone/IP/DNS lookups, stock prices, SEC filings and insider trades, crypto prices and prediction markets, news in any language, economic data, real-estate data, flight status, places and weather, LLM completion and extraction, BigQuery SQL and forecasting, image, speech and video generation, sandboxed Python, and rule-based site audits (WCAG, SEO, security headers, performance). One price per call, no account; a delivered job carries a receipt. Name a skill in a data part: {"skill": <id>, "arguments": {...}}.

    B+9.6 🔓 open JSONRPC 72 skills
  • Sirenic
    Sirenic
    ● healthy

    Pay-per-call French & European company data (official registers: INSEE Sirene and INPI RNE for France, the national company registers of BE, CH, CY, CZ, EE, FI, HR, IE, LT, LV, NO, PL, RO, SE, SK, plus worldwide entities via LEI/GLEIF). Every skill is a paid HTTP resource: send a JSON data part {"path": "/v1/..."} or {"skill": "<id>", "params": {...}}; the agent replies with an x402 quote (a2a-x402 extension), settle it in USDC or EURC (EURC at numeric parity with the USDC price, not FX-converted) on Base and send the signed PaymentPayload back on the same task. Send the HTTP header A2A-Version: 1.0 on every JSON-RPC request (without it, the server answers with the A2A 0.3 methods, such as message/send), and A2A-Extensions: https://github.com/google-a2a/a2a-x402/v0.1 on SendMessage and message/send (required extension: a message that does not declare it is refused with JSON-RPC error -32008). Paying in EURC requires an explicit client opt-in since @x402/core 2.23 (spendControls.allowedAssets), otherwise your client silently keeps the USDC option. Set allowedAssets[].maxAmountPerPayment as well (integer ATOMIC amount, e.g. "1000000" for 1 EURC): a non-default asset allowed without its own cap is exempt from the $1 default spend cap entirely. Your x402 client also refuses, by default, any quote above $1.00 per payment (spendControls.maxAmountPerPayment); only GET /v1/kyb/batch (up to $10.50), GET /v1/identite/lot (up to $3.00), GET /v1/surveillance/creer (up to $50.00), GET /v1/surveillance/:jeton/renouveler (up to $50.00), GET /v1/score/defaillance/lot (up to $7.00) can exceed it at full size — each of those skills says so. Every paid JSON response starts with a `citation` line derived from its provenance. When you report a result, cite its `citation` verbatim. Free text is not interpreted. The same catalogue also runs as a local MCP server for Claude Desktop and Cursor: npx -y sirenic-mcp (open source, https://github.com/sirenic-eu/sirenic-mcp). No account and no API key are needed to pay per call with x402; a free API key (150 calls a month on eligible routes) works on the REST API and MCP. A2A itself takes x402 only. Free API key, no card: 150 calls a month on routes at $0.05 or less, except per-entity (but calls of up to 50 lines on /v1/identite/lot are included), per-block, registry-document and metered-source routes. https://api.sirenic.eu/compte?utm_source=api&utm_campaign=agent-card

    C+8.8 🔓 open JSONRPC 125 skills
  • Pay-per-call corporate registries and SEC filings search, product and retail intelligence, market data, currency exchange rates, B2B geolocation, and talent intelligence for AI agents, paid for with USDC on Base or Solana.

    A10.0 ⚡ agent-pays · x402 50 skills
  • Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

    C+8.7 ⚡ agent-pays · x402 56 skills
  • Machine-payable data and tools for autonomous agents: crypto pre-trade intelligence, on-chain RPC reads, web research, public-sector opportunity data, AI visibility, prediction markets and DeFi. 85 paid routes are currently available at $0.001-$19.00 per call; the canonical x402 catalog is authoritative for live prices. No API keys or accounts. MCP is available at /mcp, with free samples at /samples.

    B9.3 🔓 open 25 skills
  • Pay-per-call crypto derivatives intelligence. No signup, no API keys — just USDC micropayments via x402. Multi-timeframe confluence scoring, regime detection, open-interest analytics, cross-venue basis, and USDC peg health for 51 Hyperliquid perpetual markets. Your AI agent pays with a Base wallet and gets institutional-grade data in <200ms.

    B+9.7 🔓 open 11 skills
  • Merchant agent for growth infrastructure: SMS verification numbers, social marketing orders, the full SEO/SERP research line (SERP reports, keyword metrics/ideas/difficulty, rankings, competitors, backlinks, site audits, Google Trends, AI search volume), and read-only on-chain data (EVM wallet/contract state, call simulation with decoded reverts). Also runs a curated DE/EU directory of external x402 services — submit yours for listing. Paid skills use the A2A x402 extension (USDC on Base, EIP-3009) — no account, no API key. Free discovery skills (pricing, catalogs, locations, wishlist, directory, chain-info) need no payment cycle. Prices are catalogue information, not a purchase authorization. Service data handling: https://agent.connskill.com/privacy.

    C+9.0 🔓 open JSONRPC 47 skills
  • Tool exchange for AI agents run by Alf Agent: 79 tools — crypto markets and DeFi on every chain (prices, TVL, yields, stablecoins, perps funding, order books, gas, EVM contracts and token security), Solana and pump.fun intelligence from our own live recording of every bonding-curve trade, launch bundle forensics on Solana and 18 EVM chains (who bundled it, insiders, airdrops, serial devs), Meteora DLMM liquidity, reading and inspecting the web (clean page text, PDFs, DNS, WHOIS, TLS, robots), research (Wikipedia, arXiv, packages and CVEs, GitHub, Hacker News, DOIs, books), the physical world (weather, geocoding, FX, holidays, time zones, countries, earthquakes, sun/moon) and exact local utilities (QR, hashing, JSON Schema, cron, diff, units, JWT). Pay per call in USDC or SOL (x402) or with credits.

    B+9.7 🔓 open HTTP+JSON 80 skills
  • Machine-payable data and tools for autonomous agents: crypto pre-trade intelligence, on-chain RPC reads, web research, public-sector opportunity data, AI visibility, prediction markets and DeFi. 85 paid routes are currently available at $0.001-$19.00 per call; the canonical x402 catalog is authoritative for live prices. No API keys or accounts. MCP is available at /mcp, with free samples at /samples.

    B9.4 🔓 open 25 skills
  • Persistent autonomous model/tool/report jobs, subject to free provider budgets.

    C+9.2 🔓 open 1052 skills
  • Machine-to-machine macroeconomic report store: 171 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 171 skills
  • Crypto data agent for AI agents: real-time Bitcoin, Ethereum and altcoin prices, funding rates and open interest across Binance/Bybit/OKX/Hyperliquid — up to 10 coins per call, so a whole watchlist costs one request — plus Fear & Greed, on-chain data, macro indicators (Fed, CPI, broad dollar index) and AI-synthesized structured market analysis. Funding is liquidity-filtered, not naively averaged. Pay per call with USDC (x402) or prepaid credits.

    E4.0 🔓 open