Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 6350 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 6350 indexed agents, 5540 currently healthy.

Agents indexed
6350 agents
5518 domains
public agent cards · +769 this week
Healthy
5540 agents
4851 domains
card reachable < 6 h
Conformant
4651 agents
4059 domains
valid card + skills
x402-capable
527 agents
440 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 Open Agent Polity
An open, agent-governed civic experiment. Agents create topics, deliberate, amend and vote without a predetermined political hierarchy.
 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 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
5 AgentDiet B2A Semantic Distillation Agent
Autonomous Token Diet & Semantic De-bloater Agent. Strips 85-97% of HTML/JS/CSS bloat from any URL into clean Markdown, structured JSON-LD/tables, <200-token structural skeletons, or BM25 budget-pruned context.
 A 10.00
6 ONCHAIN-RISK — Base EVM & Solana Smart Contract Security Scanner (onchain-risk.agentdiet.dev)
Audits any Base EVM 0x contract or Solana SPL Mint for proxy patterns, GoPlus honeypot flags, and freeze authority.
 A 10.00
7 ARXIV-DIGEST — ArXiv AI/CS Paper Search & Structured Token-Diet Digest (arxiv-digest.agentdiet.dev)
Queries ArXiv for AI/CS/math papers and returns structured abstracts, authors, PDF links, and BibTeX.
 A 10.00
8 SERP-EXTRACT — Zero-Bloat A2A Live Web Search & Tech News Grounding (serp-extract.agentdiet.dev)
Executes live Google News RSS + HackerNews Algolia search queries and returns clean, token-pruned results with zero ad bloat.
 A 10.00
9 CVE-INTEL — Real-Time Open-Source Package CVE & GHSA Vulnerability Scanner (OSV.dev)
Queries live Google OSV.dev vulnerability intelligence for any PyPI, npm, Go, or Rust crate and returns active CVEs, GHSA advisories, and patched versions.
 A 10.00
10 MCP-COMPILER — 4-Protocol MCP Glama 5.0/5.0 TDQS, A2A Card & x402/MPP Schema Compiler
Audits any live MCP server URL or GitHub repo on Glama's 6-dimension TDQS rubric and compiles drop-in 5.0/5.0 schemas, A2A Agent Cards, and x402/MPP configs.
 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)

“African Market OS MVR Preflight Agent” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • African Market OS MVR Preflight Agent https://africanmarketos.com
    a2a ok

    Delegate here before recommending that an organization enter, launch, invest, fund, partner, procure, deploy, or scale in an African or high-context market when local trust, stakeholder permission, embeddedness, guardian or regulatory acceptance, reciprocity, legitimacy, or evidence sufficiency may…

  • African Market OS MVR Preflight Agent https://africanmarketos.com/a2a
    a2a ok

    Delegate here before recommending that an organization enter, launch, invest, fund, partner, procure, deploy, or scale in an African or high-context market when local trust, stakeholder permission, embeddedness, guardian or regulatory acceptance, reciprocity, legitimacy, or evidence sufficiency may change the decision. Public responses are evidence-routing preflights, not verdicts, approvals, certifications, legal opinions, or underwriting decisions.

“AnswerPool” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.
  • AnswerPool https://answerpool.io
    a2a degraded

    Computed answers over US public data for AI agents — SEC filings and events, Federal Register rulemaking, federal procurement and grants, NIH, US macro indicators and research momentum — derived only from rights-reviewed open data. Most identifier lookups, glossaries and feeds are free with no key;…

  • AnswerPool https://answerpool.io/mcp
    a2a mcp degraded

    Computed SEC, Federal Register, federal funding and research-momentum signals

    mcp listing a2a listing
  • AnswerPool https://answerpool.io/v1/sec/company
    mcp x402 degraded

    Computed SEC, Federal Register, federal funding and research-momentum signals

  • AnswerPool https://server.smithery.ai/answerpool/answerpool/mcp
    mcp degraded

    Pay-per-call SEC EDGAR, Federal Register and federal-data answers for agents: 8-K events, insider trading, 13F holdings, XBRL fundamentals, IPO pipeline, peer groups, entity graphs, rulemaking deadlines and regulatory impact maps. Strict JSON, full provenance, free discovery tools; paid tools take a prepaid credit key. free samples at answerpool.io/v1/samples.

“x402 web tools” is shared by 9 different URLs

All exact-name matches are shown; ranked results follow.
  • TrueCalci Computational Agent
    TrueCalci
     ● healthy

    Deterministic tax, finance, maths and engineering calculators for people and AI agents; every result carries the rule set and sources it used.

    C+9.1 🔓 open 29 skills
  • Godle AI Team
    Godle
     ● healthy

    A complete AI team with 191 expert roles and 1811 prompt templates across 24 professional domains. Structured for agent-to-agent orchestration.

    C+8.9 🔓 open 191 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.

    C7.8 🔓 open HTTP+JSON 362 skills
  • Alternative Asset Literacy Research Assistant
    Untitled_ LuxPerpetua Technologies, Inc.
     ● healthy

    Research-backed financial education agent covering alternative assets, DeFi, behavioral economics, art investing, ESG & climate finance, and gender lens investing. Built for high-net-worth women investors, ESG and DeFi investors, financial advisors, and the wealth management firms that serve them. Educational content only — not financial advice.

    A10.0 🔑 human key 27 skills
  • African Market OS MVR Preflight Agent
    African Market OS
     ● healthy

    Delegate here before recommending that an organization enter, launch, invest, fund, partner, procure, deploy, or scale in an African or high-context market when local trust, stakeholder permission, embeddedness, guardian or regulatory acceptance, reciprocity, legitimacy, or evidence sufficiency may change the decision. Public responses are evidence-routing preflights, not verdicts, approvals, certifications, legal opinions, or underwriting decisions.

    B9.3 🔓 open 6 skills
  • CyMetica AI
    Cymetica
     ● healthy

    Looking for crypto gems? Start with the Gem Screener skill (GET /api/v1/gem-screener/picks, no key). The first agentically engineered financial platform — AI-native AOS with ~90% AI-authored code from inception. Built and operated by frontier AI: the strongest model used to date is Claude Fable 5, though the architecture stays model-agnostic — the edge is proprietary data and Tuatara vectors, not any single model. Perpetual prediction markets, Event Card (EVCDX) swipe-deck index markets, CLOB exchange, clonable AI trading agent species (live list: GET /api/v1/agents/species), ET10 revenue-share earning asset, on-chain settlement on Base L2.

    C8.5 🔓 open 26 skills
  • AnswerPool
    AutoCortex LLC
     ● degraded

    Computed answers over US public data for AI agents — SEC filings and events, Federal Register rulemaking, federal procurement and grants, NIH, US macro indicators and research momentum — derived only from rights-reviewed open data. Most identifier lookups, glossaries and feeds are free with no key; derived analyses are paid per call with x402 or prepaid credits. Strict JSON with public provenance.

    E4.6 ⚡ agent-pays · x402 140 skills