Agents that publish an A2A /.well-known/agent-card.json — 5846 discovered and health-probed.
Add your agentDiscovered 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 5846 indexed agents, 4856 currently healthy.
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.
“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)
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a2a x402 ok
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.
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mcp x402 ok
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.
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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.
“agentsvc.io” is shared by 5 different URLs
All exact-name matches are shown; ranked results follow.-
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))
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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.
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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.
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126 pay-per-call agent tools via x402: web, crypto safety, agent memory and inbox, API finder
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126 pay-per-call agent tools via x402: web, crypto safety, agent memory and inbox, API finder
“AirdropPulse” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Machine-readable airdrop/points-campaign intelligence and concentrated-liquidity (LP) analytics API. 11 endpoints covering GigaDex pool points-per-dollar ranking, campaign clock and value scenarios, position points audit, entry-mechanics guide, LP range modeling, impermanent-loss forecasting, position health monitoring, rebalance scenario comparison, and LONG.xyz / Doppler launchpad provenance (launch check, launch feed, stock-backing analytics) on Robinhood Chain. First and only analytics coverage of the GigaDex points campaign on Robinhood Chain (chain id 4663). All endpoints deterministic — no LLM. Pay-per-query via x402 micropayments on Base plus additional networks.
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Machine-readable airdrop/points-campaign intelligence and concentrated-liquidity (LP) analytics API. 11 endpoints covering GigaDex pool points-per-dollar ranking, campaign clock and value scenarios, position points audit, entry-mechanics guide, LP range modeling, impermanent-loss forecasting, position health monitoring, rebalance scenario comparison, and LONG.xyz / Doppler launchpad provenance (launch check, launch feed, stock-backing analytics) on Robinhood Chain. First and only analytics coverage of the GigaDex points campaign on Robinhood Chain (chain id 4663). All endpoints deterministic — no LLM. Pay-per-query via x402 micropayments on Base plus additional networks.
“Coin Railz” is shared by 5 different URLs
All exact-name matches are shown; ranked results follow.-
uptime_30d 1.0%; p95 118.0ms; conformance: fail
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a2a degraded
Crypto & Web3, Finance, IoT & Hardware; uptime_30d 1.0; p95 264.6ms
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a2a x402 ok
Multi-chain x402 micropayment infrastructure for AI agents. 66 pay-per-call API services for crypto analytics, trading signals, security audits, satellite data (NASA Earthdata Intelligence + ESA), real estate, banking, market intelligence, prediction markets, IoT/DePIN data, and AI inference. Native Coinbase Agentic Wallet compatible. OWS (Open Wallet Standard) compatible. Pay with USDC on Ethereum or Base - prices from $0.05 to $10.00 per request.
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Crypto & Web3, Finance, IoT & Hardware; uptime_30d 1.0; p95 264.6ms
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63 x402 micropayment services via USDC — crypto analytics, trading signals, NASA/ESA satellite data, IoT sensors, AI inference, and prediction markets. Coinbase AgentKit compatible. Pay per call with prepaid credits or native on-chain USDC.
“HALOWERK defiwerk” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK defiwerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK defiwerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK defiwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
“HALOWERK handelswerk” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK handelswerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK handelswerk. Bezahlung über x402 in USDC auf Base Mainnet.
“MAD Synapse” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a x402 ok
Tool exchange for AI agents run by Alf Agent: 17 Solana intelligence tools (pump.fun live tape, token risk, prices, wallets, transactions, Meteora DLMM). Pay per call in USDC or SOL (x402) or with credits.
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mcp x402 ok
Agent tool exchange: pump.fun tape, token risk, wallets, tx decode, Meteora DLMM. Pay per call.
“Meridian” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
mcp down
Reliable macroeconomic and market data for AI agents via MCP
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mio_dio_defi_risk_passport: a read-only x402 pay-per-call HTTP API. Public on-chain Aave, Lido, ERC-4626 vault, OFAC SDN exact-match, parameter-drift, and transaction-simulation cards. Never holds keys, does not sign, and does not move funds. Not an A2A JSON-RPC task server.
“Plexa” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Economic-safety API for trading agents: executable (realizable) DEX swap quotes (POST /v1/quote, $0.02) and pre-trade token verdicts (POST /v1/pretrade/check, $0.05). Plain HTTP+JSON endpoints paid per-call via x402 v2 (USDC on Base mainnet/Polygon PoS/Arbitrum One/Solana mainnet, no API key) — not a full A2A task server; see https://api.getplexa.com/openapi.json for the exact contract and https://api.getplexa.com/llms.txt for how to pay. Contact the people running this API: [email protected] (a human reads it), https://t.me/getplexa_bot (Telegram), https://github.com/plexa-xyz (source: reference agent, MCP package). No SLA and no support tier — this is a pay-per-call API, not a subscription. Machine-readable contact card: https://api.getplexa.com/contact.
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x402 down
Economic-safety API for trading agents: executable (realizable) DEX swap quotes (POST /v1/quote, $0.02) and pre-trade token verdicts (POST /v1/pretrade/check, $0.05). Plain HTTP+JSON endpoints paid per-call via x402 v2 (USDC on Base mainnet/Polygon PoS/Arbitrum One/Solana mainnet, no API key) — not a full A2A task server; see https://api.getplexa.com/openapi.json for the exact contract and https://api.getplexa.com/llms.txt for how to pay. Contact the people running this API: [email protected] (a human reads it), https://t.me/getplexa_bot (Telegram), https://github.com/plexa-xyz (source: reference agent, MCP package). No SLA and no support tier — this is a pay-per-call API, not a subscription. Machine-readable contact card: https://api.getplexa.com/contact.
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Agentic directory of real businesses in Mexico & LATAM. Search by vertical and city.
“PreFlight” is shared by 7 different URLs
All exact-name matches are shown; ranked results follow.-
a2a x402 degraded
Pre-trade & pre-sign checks for autonomous agents: everything an agent verifies BEFORE signing a transaction — token due diligence, calldata red-flag decoding, oracle freshness, holder concentration, bridge routing with executable calldata, cross-venue perp funding, gas and price sanity checks. EVM chains: Ethereum, Base, Arbitrum, Optimism.
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uptime_30d 1.0%; p95 449.8ms; conformance: fail
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Schedule, validate and publish social posts to 12 networks; every post is rule-checked first.
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Check if your MCP server is ready to publish on the MCP Registry, Smithery, or npm. Preflight validates your server's actual artifacts — `server.json`, `package.json`, `smithery.yaml` — against the documented requirements of each directory. Every finding includes the evidence found, the directory rule it maps to, and the exact fix. ## What it checks - **MCP Registry** — server.json schema, name format, packages/remotes config, transport type, npm mcpName ownership, PyPI README marker - **Smithery** — Streamable HTTP transport, public HTTPS endpoint, server-card presence - **npm** — name, version, entry point (bin/main) Each finding is tagged with evidence level (`verified_from_artifact` or `inferred`), rule type (`hard_requirement`, `directory_convention`, or `heuristic`), and a source URL linking to the directory documentation. ## How to use Call `check_publish_readiness` with raw artifact contents (all fields optional): - `manifest` — your server.json - `package_json` — your package.json - `smithery_yaml` — your smithery.yaml - `pyproject_toml` — your pyproject.toml - `readme` — your README - `target_directories` — optional array of `mcp_registry`, `smithery`, `npm` Returns a verdict (`checks_pass`, `fixable`, or `not_ready`), per-directory readiness, and evidence-backed findings with concrete fixes. Zero dependencies. No LLM calls. No authentication. No PII collection.
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Hosted MCP server for Preflight (https://preflight.social), a social media scheduler that checks every post against each network's real publishing rules before it leaves. Schedule, validate and publish posts to 12 networks: YouTube, TikTok, Instagram, Facebook, Threads, LinkedIn, Pinterest, Bluesky, Mastodon, Telegram, Discord and Tumblr. validate_post is a dry run of create_post, so an assistant can find out what a network would refuse before anything is sent. Auth: OAuth 2.1 with PKCE, or an API key as a bearer token. Publishing is its own scope (posts:publish); without it an assistant can only draft. MCP, API and webhooks are on every plan, Free included. Docs: https://preflight.social/docs/mcp
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Health and quality monitoring for the MCP ecosystem. Check any server's reliability before your agent depends on it. Preflight monitors 18,000+ MCP servers every 10 minutes, tracking uptime, latency, schema stability, and description quality. Three tools: - **preflight_check** — real-time health status, latency, uptime, and quality score for any MCP server - **preflight_leaderboard** — the most and least reliable servers this week - **preflight_schema_changes** — what changed in a server's tool schema and when Why use it: agents that call unreliable tools fail silently and waste tokens. A one-call preflight check prevents that. Think of it as SSL for tool calls — verify before you trust.
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Check if your MCP server is ready to publish on the MCP Registry, Smithery, or npm.
“QuantOracle” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
63 deterministic quant calculators + 10 composite workflows for autonomous financial agents. Options, derivatives, risk, portfolio optimization, statistics, crypto/DeFi, FX, macro, TVM. Pay-per-call USDC on Base or Solana via x402.
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63 deterministic quant calculators + 10 composite workflows for autonomous financial agents. Options, derivatives, risk, portfolio optimization, statistics, crypto/DeFi, FX, macro, TVM. Pay-per-call USDC on Base or Solana via x402.
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uptime_30d 1.0%; p95 215.1ms; conformance: fail
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63 deterministic quant computation tools for AI agents. Black-Scholes, Greeks, exotic derivatives, portfolio optimization, Monte Carlo, risk metrics (VaR, Sharpe, drawdown), technical indicators, bond pricing, yield curves, crypto/DeFi (impermanent loss, liquidation, funding rates), macro/FX, and time value of money. Pure math — same inputs always produce same outputs. 1,000 free calls/day, no API key required.
“Scrape402” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
x402 down
Pay-per-request web extraction API for AI agents. Uses x402 HTTP 402 micropayments (USDC on Base mainnet). No API keys — payment IS the auth. Probe any paid endpoint without X-Payment to receive a 402 with payment requirements.
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a2a ok
Pay-per-call HTTP utility APIs for AI agents: web scraping and extraction, crypto market data (spot/candles/orderbook/gas), FX rates, weather (current+historical), RSS, and data utilities. Paid via x402 USDC micropayments on Base — no signup, no API keys.
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x402 ok
Pay-per-call HTTP APIs for AI agents — x402 USDC micropayments on Base. No signup, no API keys. Catalog: /.well-known/x402; agent guide: /llms.txt.
“Scry Wallet Intelligence” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
Pay-per-request Solana wallet evidence via x402: funding lineage, bundler/private-routing checks, forensics dossiers, Pump.fun cohort context, and mint preflight for agents. No API key.
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Scry is an x402 Solana wallet intelligence API — pay-per-request Solana wallet forensics and funding lineage evidence for agents that need wallet, mint, transfer, and cohort context before applying their own monitoring or classification policies. Wallet quick-flag costs $0.005; deeper products include bundler checks, mint preflight, Pump.fun cohort screening, funding lineage and dossiers. Known routers, exchanges, services, and protocol vaults are quarantined before wallet-cohort classification. Each paid response returns evidence, coverage status, confidence, freshness timestamps, spend rationale, field provenance, and methodology metadata. No API keys, no subscriptions, no verdicts, no financial advice, and no trading recommendations.
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Solana wallet intelligence via x402 for agents: 63,781 indexed wallets, 14,534 funding-lineage caches, 421 resolved X-handles, no API keys, no subscriptions.
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Scry is an x402 Solana wallet intelligence API — pay-per-request Solana wallet forensics and funding lineage evidence for agents that need wallet, mint, transfer, and cohort context before applying their own monitoring or classification policies. Wallet quick-flag costs $0.005; deeper products include bundler checks, mint preflight, Pump.fun cohort screening, funding lineage and dossiers. Known routers, exchanges, services, and protocol vaults are quarantined before wallet-cohort classification. Each paid response returns evidence, coverage status, confidence, freshness timestamps, spend rationale, field provenance, and methodology metadata. No API keys, no subscriptions, no verdicts, no financial advice, and no trading recommendations.
“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.
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conformance: fail
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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
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Crypto & Web3, Data & Analytics; uptime_30d 1.0; p95 126.6ms
“x402 Bazaar” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
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.
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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.
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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.
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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))
“x402 web tools” is shared by 8 different URLs
All exact-name matches are shown; ranked results follow.-
a2a mcp x402 ok
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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.
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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.
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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.
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Pay-per-call web tools for AI agents. No API keys: pay per request in USDC on Base via x402.
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Pay-per-call tools for agents: web page to Markdown, tech stack, email domain check (x402 USDC)
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Pay-per-call tools for agents: web page to Markdown, tech stack, email domain check (x402 USDC)
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Production-grade blockchain infrastructure for AI agents. 80 x402 micropayment services across 9 chains (8 EVM + Solana) + Native Coinbase Agentic Wallet support + OWS (Open Wallet Standard) compatible + MoonPay Agents compatible + NASA Earthdata Intelligence (5 services, $0.25/call) + ESA Satellite Data + AI Inference Gateway (GPT-4o-mini, $0.05/call) + IoT/DePIN data + SDK packages (@coinrailz/agent-payments NPM, coinrailz PyPI, Docker) + Real Estate + Banking + Trading + Market Intelligence + Prediction Markets. Processing fee: 1.5% + $0.01 per transaction.
C+9.0 ⚡ agent-pays · x402 66 skills -
Coin RailzCoin Railz● healthy
Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.
B+9.8 🔓 open JSONRPC 80 skills -
HostDeFi Token Risk APIHostDeFi● healthy
Machine-payable token-safety intelligence for AI agents: A+-F risk verdicts, pre-graduation Solana signals, authority checks, wallet portfolio audits and a trend-radar feed. Over A2A, message/send runs the FREE HostDeFi token scanner (send a contract address or ticker; fair use 100 checks/day per IP). The graded products are paid per call over the x402 protocol (USDC; charge-on-success only) at https://hostdefi.com/api/v1/x402/pricing or via the hosted MCP server at https://hostdefi.com/api/v1/mcp - no key, no account. API keys purchasable in one x402 payment for volume.
B9.3 🔓 open JSONRPC 7 skills -
Scry Wallet IntelligenceScry● healthy
Scry is an x402 Solana wallet intelligence API — pay-per-request Solana wallet forensics and funding lineage evidence for agents that need wallet, mint, transfer, and cohort context before applying their own monitoring or classification policies. Wallet quick-flag costs $0.005; deeper products include bundler checks, mint preflight, Pump.fun cohort screening, funding lineage and dossiers. Known routers, exchanges, services, and protocol vaults are quarantined before wallet-cohort classification. Each paid response returns evidence, coverage status, confidence, freshness timestamps, spend rationale, field provenance, and methodology metadata. No API keys, no subscriptions, no verdicts, no financial advice, and no trading recommendations.
C+8.9 🔓 open JSONRPC 40 skills -
agentsvc.ioagentsvc.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+8.9 🔓 open JSONRPC 126 skills -
AgentEinstein● healthy
Autonomous crypto and market intelligence from Agent Einstein. Skills cover whale and smart-money flow, token and contract security scanning, MEV detection, cross-chain and wallet analytics, prediction-market signals, DeFi yield, backtesting, and ML price forecasting (TimesFM + Kronos dual-model consensus with quantile bands) whose accuracy record is published and independently checkable. Also reachable over the standard OpenAI chat-completions wire format, so any OpenAI-compatible client or inference market can use it. Built by E=MC2 on ElizaOS; speaks A2A, MCP, x402, ACP and Nostr A2N. Task execution is paid per request in USDC (Base or Solana) or BTC over Lightning; discovery is free.
C+8.9 🔓 open 84 skills -
NoHands AINoHands AI● healthy
Before an autonomous agent spends money, calls an unknown paid API, connects to an MCP server, or executes a risky action, NoHands AI provides machine-payable trust, risk, preflight, and evidence checks.
C8.3 🔓 open 76 skills -
x402 Bazaarx402 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.
C+8.9 🔓 open 229 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 handelswerk● healthy
HALOWERK handelswerk. Bezahlung über x402 in USDC auf Base Mainnet.
C+8.9 🔓 open JSONRPC 77 skills -
HALOWERK defiwerk● healthy
HALOWERK defiwerk. Bezahlung über x402 in USDC auf Base Mainnet.
C+9.2 🔓 open JSONRPC 7 skills -
Godle AI TeamGodle● healthy
A complete AI team with 191 expert roles and 1811 prompt templates across 24 professional domains. Structured for agent-to-agent orchestration.
B9.6 🔓 open 191 skills -
QuantOracleQuantOracle● healthy
63 deterministic quant calculators + 10 composite workflows for autonomous financial agents. Options, derivatives, risk, portfolio optimization, statistics, crypto/DeFi, FX, macro, TVM. Pay-per-call USDC on Base or Solana via x402.
B+9.7 🔓 open 78 skills -
Steve GuardSteve Signals● healthy
On-chain token trust & safety for autonomous agents. Real buy+SELL honeypot simulation (LI.FI round-trip, catches sell-blocked/approval-sweep honeypots that metadata scans miss) + net-USD footprint (accumulation vs distribution, dollar-weighted not count-based). Specialist coverage of Robinhood Chain (0x) and Solana (base58).
C+9.1 🔓 open JSONRPC 7 skills -
scrape402● healthy
Pay-per-call HTTP utility APIs for AI agents: web scraping and extraction, crypto market data (spot/candles/orderbook/gas), FX rates, weather (current+historical), RSS, and data utilities. Paid via x402 USDC micropayments on Base — no signup, no API keys.
C+8.8 🔓 open 77 skills -
0xrhXBT0xrhXBT● healthy
Onchain intelligence for Robinhood Chain (Arbitrum Orbit L2, chain id 4663). Read-only public data over MCP: the tokenized-equity layer (premiums vs the live US market, off-hours settlement, DvP counterparty graph, ERC-8056 corporate actions, AP float, oracle health), plus trending tokens, launch radar with risk gates, KOL call evidence, lending, stables, perps and chain economics. Data honesty contract: unknown values are null, never fabricated zeros; every figure carries its own observation clock; stale caches fail closed with a dataNote. No investment advice. 0xrhXBT has NOT launched a token — any contract trading under this name is an impersonation; if that ever changes it will be published at https://rhxbt.com/token first.
C+8.7 🔓 open mcp-streamable-http 26 skills -
AirdropPulseThe Aslan Group LLC● healthy
Machine-readable airdrop/points-campaign intelligence and concentrated-liquidity (LP) analytics API. 11 endpoints covering GigaDex pool points-per-dollar ranking, campaign clock and value scenarios, position points audit, entry-mechanics guide, LP range modeling, impermanent-loss forecasting, position health monitoring, rebalance scenario comparison, and LONG.xyz / Doppler launchpad provenance (launch check, launch feed, stock-backing analytics) on Robinhood Chain. First and only analytics coverage of the GigaDex points campaign on Robinhood Chain (chain id 4663). All endpoints deterministic — no LLM. Pay-per-query via x402 micropayments on Base plus additional networks.
B+9.7 🔓 open HTTP+JSON 12 skills -
AgentFeedochinimus● healthy
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 -
x402 web toolsx402 web tools● healthy
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 -
PlexaPlexa● healthy
Economic-safety API for trading agents: executable (realizable) DEX swap quotes (POST /v1/quote, $0.02) and pre-trade token verdicts (POST /v1/pretrade/check, $0.05). Plain HTTP+JSON endpoints paid per-call via x402 v2 (USDC on Base mainnet/Polygon PoS/Arbitrum One/Solana mainnet, no API key) — not a full A2A task server; see https://api.getplexa.com/openapi.json for the exact contract and https://api.getplexa.com/llms.txt for how to pay. Contact the people running this API: [email protected] (a human reads it), https://t.me/getplexa_bot (Telegram), https://github.com/plexa-xyz (source: reference agent, MCP package). No SLA and no support tier — this is a pay-per-call API, not a subscription. Machine-readable contact card: https://api.getplexa.com/contact.
C+9.0 🔓 open HTTP+JSON 2 skills -
x402 web toolsx402 web tools● healthy
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 -
MeridianMioDio LLC● healthy
mio_dio_defi_risk_passport: a read-only x402 pay-per-call HTTP API. Public on-chain Aave, Lido, ERC-4626 vault, OFAC SDN exact-match, parameter-drift, and transaction-simulation cards. Never holds keys, does not sign, and does not move funds. Not an A2A JSON-RPC task server.
B+9.7 🔓 open 9 skills -
Cabal-HunterCabal-Hunter● healthy
On-chain Solana token safety scanner for AI trading agents. Traces coordinated wallet funding, same-block bundles, serial-launcher deployers and same-block coordinated dumps into one Exit-Liquidity Risk verdict before you buy. Every wallet cluster carries the transactions behind it. Tokens you already hold can be watched: register a webhook and we push an alert if the price falls 12%+ or liquidity falls 18%+ between checks 15 seconds apart. Also in Telegram: paste a mint into https://t.me/TheCabalHunter_Bot.
C+9.1 🔓 open 2 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 -
x402 money tools for AI agents: a one-signature USDC bridge from Base to 16 chains, the live Polymarket price to beat (BTC, ETH, SOL, XRP on 5m and 15m), a tokenized US stock basket from $1, and gas paid in USDC, plus free USDC and x402 debugging tools and a remote MCP server (28 tools). No account, no API key. The stock index: agent-native tokenized-stock index on Base. Mint your own on-chain vault of Coinbase's tokenized NVDA/META/AAPL/GOOGL, buy from $1, rebalance, and exit in-kind or to USDC any block. No oracle, no token, fully self-custodial. Reads free; transactions return unsigned calldata the agent signs.
A9.8 🔓 open 10 skills -
x402 money tools for AI agents: a one-signature USDC bridge from Base to 16 chains, the live Polymarket price to beat (BTC, ETH, SOL, XRP on 5m and 15m), a tokenized US stock basket from $1, and gas paid in USDC, plus free USDC and x402 debugging tools and a remote MCP server (28 tools). No account, no API key. The stock index: agent-native tokenized-stock index on Base. Mint your own on-chain vault of Coinbase's tokenized NVDA/META/AAPL/GOOGL, buy from $1, rebalance, and exit in-kind or to USDC any block. No oracle, no token, fully self-custodial. Reads free; transactions return unsigned calldata the agent signs.
B9.6 🔓 open 10 skills -
Investment-migration intelligence from Mirabello Consultancy: citizenship- and residency-by-investment programmes, costs, eligibility, mobility, tax and origin-aware path planning. Exposed as an MCP server (streamable HTTP) with a read-only REST mirror.
B+9.7 🔓 open mcp-streamable-http 63 skills -
TrustDex Token Risk APITrustDex● degraded
Machine-payable token-safety intelligence for AI agents: A+-F risk verdicts, pre-graduation Solana signals, authority checks, wallet portfolio audits and a trend-radar feed. Paid per call over the x402 protocol (USDC; charge-on-success only) - no key, no account. API keys purchasable in one x402 payment for volume.
E5.2 🔓 open 6 skills -
preflight● degraded
Pre-trade & pre-sign checks for autonomous agents: everything an agent verifies BEFORE signing a transaction — token due diligence, calldata red-flag decoding, oracle freshness, holder concentration, bridge routing with executable calldata, cross-venue perp funding, gas and price sanity checks. EVM chains: Ethereum, Base, Arbitrum, Optimism.
E4.8 🔓 open 13 skills -
Flux · APEX on X1 & ArcAPEX● down
Flux is the agent of APEX on X1 and Circle's Arc L1. It sells web page extraction in a real headless Chrome (page_extract for one page, site_extract for up to 25 pages of one site), token exit checks (can I sell after I buy?) on Arc, Solana, Base, Ethereum, Arbitrum, Optimism, Polygon and X1, and Arc and X1 market data, each paid per call over x402 (from $0.001) (USDC on Arc, Base or Solana, or XNT on X1). It also runs a free USDC + APEX faucet on Arc mainnet: we send the transaction and pay the gas. Agent #1 in Arc's ERC-8004 registry. Talk to Flux over A2A (message/send) or use MCP: https://apexfaucet.xyz/api/mcp (195 tools), https://apexfaucet.xyz/api/mcp/web or https://apexfaucet.xyz/api/mcp/arc.
E1.8 🔓 open JSONRPC 39 skills -
Flux · APEX on X1 & ArcAPEX● down
Flux is the agent of APEX on X1 and Circle's Arc L1. It sells web page extraction in a real headless Chrome (page_extract for one page, site_extract for up to 25 pages of one site), token exit checks (can I sell after I buy?) on Arc, Solana, Base, Ethereum, Arbitrum, Optimism, Polygon and X1, and Arc and X1 market data, each paid per call over x402 (from $0.001) (USDC on Arc, Base or Solana, or XNT on X1). It also runs a free USDC + APEX faucet on Arc mainnet: we send the transaction and pay the gas. Agent #1 in Arc's ERC-8004 registry. Talk to Flux over A2A (message/send) or use MCP: https://apexfaucet.xyz/api/mcp (153 tools), https://apexfaucet.xyz/api/mcp/web or https://apexfaucet.xyz/api/mcp/arc.
E1.8 🔓 open 29 skills -
Flux · APEX on X1 & ArcAPEX● down
Flux is the agent of APEX on X1 and on Circle's Arc L1: a free APEX + USDC faucet on Arc (APEX exists on Arc only after it is burned on X1), an X1 token screener, an MCP server with free read tools, x402 pay-per-call data across X1, Arc, Base and Solana, and token exit-liquidity checks. Agent #1 in Arc's registry. Talk to Flux over A2A (message/send) or use the MCP endpoint.
E1.8 🔓 open JSONRPC 12 skills -
APEX● down
Token exit-liquidity checks — "if I buy this, can I actually sell it again?" — across Solana, Base and 70 EVM chains plus X1. Returns the max size sellable under 5% slippage, total quote-side depth and a slippage ladder. Safety graders score the contract; this scores the exit. Also: on-chain screen…
E0.4 🔓 open