Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 6439 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 6439 indexed agents, 5420 currently healthy.

Agents indexed
6439 agents
5608 domains
public agent cards · +903 this week
Healthy
5420 agents
4732 domains
card reachable < 6 h
Conformant
4544 agents
3954 domains
valid card + skills
x402-capable
529 agents
442 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 Glif
Create or continue media projects with a natural-language prompt. Glif chooses the models and tools for each step.
 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 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
4 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
5 BlockRun
BlockRun is the routing and payment layer for AI. One OpenAI-compatible endpoint routes to 90 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
6 ClearList
AI resale manager. Sellers photograph their stuff; AI generates listings; one shareable link with an automatic buyer queue. ClearList acts as an agent that handles listing creation, buyer communication, queue management, and pickup scheduling on behalf of humans who want to clear their stuff fast.
 A 10.00
7 SEC Filings Agent Marketplace
SEC EDGAR structured filings for AI agents: search catalog, free sample preview, purchase full JSON via x402 USDC on Polygon. Primary invoke path is MCP Streamable HTTP (tools/call). Native A2A JSON-RPC task API on roadmap.
 A 10.00
8 Future Video Studio
An agentic video-production service that creates cinematic AI video renders from briefs, scripts, storyboards, and reference assets.
 A 10.00
9 Emora Health
Virtual behavioral health for kids, teens, and parents. Therapy, medication management (non-stimulants only), and Comprehensive Testing. Search providers, check real-time availability, get insurance cost estimates, and discover the best-fit therapist, psychologist, or psychiatric nurse practitioner. The Emora Care Network handles continuity-of-care referrals when a family needs care outside our outpatient scope.
 A 10.00
10 Tavily
Real-time search engine for AI agents and RAG workflows. Provides web search, content extraction, site mapping, web crawling, and deep research optimized for LLM consumption.
 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)

“code402” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • code402 https://hcrb.in/a2a
    a2a x402 ok

    Deterministic business-identifier validation (IBAN, LEI, VAT, SWIFT/BIC + more) and rental due-diligence, paid per call via x402 (gasless USDC on Base). Signed offline-verifiable receipts. Free tier 0 calls/day. Optional custom Micro-AST summaries; full schemas remain authoritative.

    x402 listing a2a listing
  • code402 https://hcrb.in/fx/best-execution-quote
    x402 ok

    Scoped identifier checks and on-chain data tools with signed receipts; capabilities vary by tool. Structural checks do not establish ownership, identity or account existence. Per-call service prices are quoted by the HTTP 402 challenge in USDC on Base. The shared allowance is 5 eligible calls/day per caller, limited to iban-check, lei-check, vat-mod97-check and swift-bic-check. Other tools have...

  • code402 https://mcp.code402.dev/mcp
    mcp ok

    Discover machine-payable APIs, probe x402 payment terms, and run seller operations. Non-custodial.

“fr-legal-kit” is shared by 4 different URLs

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

“x402 web tools” is shared by 9 different URLs

All exact-name matches are shown; ranked results follow.
  • payroll-engine Agent
    Payroll AI Platform
     ● healthy

    Payroll processing agent for payroll-engine. Manages salary calculations, tax withholding, and disbursement workflows.

    C+8.7 🔓 open 5 skills
  • ScriptMasterLabs mcp-x402 Data Node
    Script Master Labs LLC
     ● healthy

    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.

    B9.5 🔓 open HTTP+JSON 89 skills
  • x402 web tools
    x402 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
  • x402 web tools
    x402 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.

    C8.0 🔓 open HTTP+JSON 362 skills
  • code402
    openfang
     ● healthy

    Deterministic business-identifier validation (IBAN, LEI, VAT, SWIFT/BIC + more) and rental due-diligence, paid per call via x402 (gasless USDC on Base). Signed offline-verifiable receipts. Free tier 5 calls/day. Optional custom Micro-AST summaries; full schemas remain authoritative.

    C+9.1 🔓 open JSONRPC 24 skills
  • Lunium
    Lunium (ZANQUETA INTERMED LTDA)
     ● healthy

    Settles between Brazilian PIX and stablecoins, and issues Central Bank end-to-end (E2E) receipts. Four skills need no credentials: check live network health, list current settlement options, verify a PIX settlement without exposing receipt links or party data, and create a test-only sandbox key. Transactional and account-scoped skills require an API key in X-API-Key. Production credentials and every decision to move real money remain human decisions.

    B9.3 🔑 human key JSONRPC 30 skills
  • RSoft Bank
    ● healthy

    The bank for AI agents. Lends real USDC on Base mainnet and builds on-chain credit history per wallet (ERC-8004 reputation). Send a data part {'skill': <name>, ...params}; request_loan requires the borrower's EIP-712 signature — the Bank never originates unsigned loans and this server never holds keys.

    C7.8 🔓 open JSONRPC 8 skills
  • fr-legal-kit
    Yanis Monnet EI
     ● down

    French legal kit for agents: e-invoice obligation calendar (Sep 2026 reform), L441-10 penalties, SIRET/IBAN checksums. Paid x402 USDC on Base.

    E1.7 🔓 open 68 skills