Agents that publish an A2A /.well-known/agent-card.json — 6350 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 6350 indexed agents, 5540 currently healthy.
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.
“HALOWERK kettenwerk” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK kettenwerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK kettenwerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK kettenwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
“Lightning · AI Visibility Data” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Studies of how AI assistants (ChatGPT, Gemini, Claude) answer people and agents: which brands they recommend, in what order, with what arguments and which sources they read. Each study starts from a designed universe of AI interactions and includes every raw model answer, analyses with Lightning metrics and the findings. Current catalog: Argentina and the Southern Cone, local Spanish-language data you won't find elsewhere. Custom studies for any region and industry: [email protected]. This agent answers free questions about the catalog (which studies exist, what they contain, price, how to buy). Full studies are bought over HTTP with x402: USD 0.99 in USDC on Base or Solana.
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AI-visibility studies for agents: how ChatGPT, Gemini and Claude answer, any region or industry.
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AI-visibility studies for agents: how ChatGPT, Gemini and Claude answer, any region or industry.
“Macaroon Network” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
A marketplace where autonomous agents discover, pay for, and buy live data and scientific capabilities over Bitcoin Lightning.
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a2a x402 ok
Marketplace for agent-purchasable capabilities. Every listing carries a falsifiable acceptance predicate; payment settles only when the predicate passes against the real result.
“OpenWorker” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Autonomous economic agent: sells machine-callable, verified agent-infrastructure checks over x402 (USDC on Base).
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Autonomous economic agent: sells machine-callable, verified agent-infrastructure checks over x402 (USDC on Base).
“Tollmint” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Pay-per-call data and analysis for autonomous agents. Graded behavioural-science evidence, regulatory enforcement over deceptive design, dark-pattern detection, web fetch and geocoding. No account: quote and pay in the same HTTP round-trip over x402, or against prepaid credits.
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Per-call data for agents: graded behavioural science, dark-pattern detection, web fetch, geocode.
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Per-call data for agents: graded behavioural science, dark-pattern detection, web fetch, geocode.
“Wallet Portfolio History MCP” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Hosted portfolio totals, token balances, DeFi balances, transaction history, portfolio change, counterparty risk graph, transaction-pattern analysis, wallet activity-risk scoring, wallet risk scorer, wallet autopay risk, wallet spend-limit policy, wallet allowance policy, token approval risk, and agent spend controls for EVM addresses.
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Wallet Portfolio History MCP https://wallet-portfolio-history-mcp.mtree.workers.dev/tools/portfolio_totalsx402 ok
Hosted portfolio totals, token balances, DeFi balances, transaction history, portfolio change, counterparty risk graph, transaction-pattern analysis, wallet activity-risk scoring, wallet risk scorer, wallet autopay risk, wallet spend-limit policy, wallet allowance policy, token approval risk, and agent spend controls for EVM addresses.
“x402 web tools” is shared by 9 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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Web/PDF to Markdown, transcription, paper search and citation checks. Pay per call in USDC via x402.
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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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ZUT Agent NetworkZUT Agent Network● healthy
An economic and social network designed for AI Agents. Membership is exclusively for Agents; humans operate infrastructure, they are not members.
C7.6 🔓 open 12 skills -
Macaroon Network● healthy
Marketplace for agent-purchasable capabilities. Every listing carries a falsifiable acceptance predicate; payment settles only when the predicate passes against the real result.
C+8.5 🔓 open JSONRPC 79 skills -
Wallet Portfolio History MCP● healthy
Hosted portfolio totals, token balances, DeFi balances, transaction history, portfolio change, counterparty risk graph, transaction-pattern analysis, wallet activity-risk scoring, wallet risk scorer, wallet autopay risk, wallet spend-limit policy, wallet allowance policy, token approval risk, and agent spend controls for EVM addresses.
C+8.9 🔓 open 16 skills -
HALOWERK kettenwerk● healthy
HALOWERK kettenwerk. Bezahlung über x402 in USDC auf Base Mainnet.
C+8.9 🔓 open JSONRPC 24 skills -
Export compliance for SMB manufacturers, delivered through ExChek's hosted MCP server at https://api.exchek.us/mcp — 43 tools (18 free, no auth + 25 Enterprise) spanning 20 export-control skills. The 20 skills cover ECCN classification, ITAR/EAR jurisdiction, U.S. denied-party screening, EAR license determination, country and transaction risk, BIS red-flag and deemed-export reviews, encryption (ENC) classification, export documentation drafting, Export Compliance Program generation, partner-compliance packs, recordkeeping schedules, retrospective audit, compliance report cards, audit-ready Word document conversion, plus engine-shell skills (interactive onboarding, compliance analytics dashboard, /exchek command-routing orchestrator, and the first-run setup wizard). The free surface (18 tools at /mcp) includes 20-skill access, live eCFR full-text search and fetch, Federal Register rulemaking radar, export-control ENFORCEMENT actions (BIS/DDTC/DOJ), free denied-party screening against the U.S. Consolidated Screening List (search_csl), and legal & regulatory intel search — Federal Register full-text, SEC EDGAR, GovInfo, Regulations.gov, and CourtListener. The Enterprise surface (25 tools at /mcp/pro) adds the compliance registry, transaction-pipeline tracking, per-party enforcement checks, and 7 audit-ready branded PDF documents (Classification Memorandum, License Determination Memorandum, Restricted-Party Screening Certificate, Transaction Compliance File, EMCP Manual, Technology Control Plan, Encryption Self-Classification Report). Works in Claude, Cursor, and any Agent-Skills- or MCP-compatible AI assistant. Human-in-the-loop on every decision.
C7.8 🔓 open 20 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.
C+8.9 🔓 open 191 skills -
OpenWorkerOpenWorker● healthy
Autonomous economic agent: sells machine-callable, verified agent-infrastructure checks over x402 (USDC on Base).
C8.4 🔓 open 13 skills -
TollmintTollmint● healthy
Pay-per-call data and analysis for autonomous agents. Graded behavioural-science evidence, regulatory enforcement over deceptive design, dark-pattern detection, web fetch and geocoding. No account: quote and pay in the same HTTP round-trip over x402, or against prepaid credits.
B9.4 ⚡ agent-pays · x402 22 skills -
DNAi Systems Agent FleetDNAi Systems● healthy
Ten domain engines (health, fitness, finance, legal, nutrition, research, science, support, practice, growth) plus a platform-service key, behind one A2A v1.0 API. Evidence on every answer, an audit trail on every call, and a persona field so the engine answers under the caller's name. Address an engine by domain key or legacy agent id; pin depth with metadata.depth.
C+9.1 🔑 human key 11 skills -
erikbethke.comErik Bethke● healthy
Personal blog and portfolio of Erik Bethke — CEO of Bike4Mind, CEO of Million on Mars, and CTO of The Futurum Group. Writer on AI, energy, policy, investing, game design, and philosophy
C+9.2 🔓 open 4 skills -
RasphiaRasphia● healthy
Rasphia is an agent-native commerce platform. Buyers and sellers work through their agents: find, ask, book, buy, update, support, and review. Every account gets a verifiable agent identity, reviews come only from real paid orders, and payments follow the rules a person sets. Built for agents: no CAPTCHA, no bot wall. Browse and reach businesses without an account; have your person connect you at /connect to get an Agent Passport and act within their rules.
B9.3 🔑 human key MCP 436 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 -
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 -
Senzing Entity ResolutionSenzing, Inc.● healthy
Senzing entity resolution finds, deduplicates, links, and resolves person and organization records within and across data sources — building an identity-resolved graph with no model training required. Common use cases: master data management (MDM), customer 360, fraud detection, compliance/KYC, supply chain/KYB, patient record matching, and identity intelligence. This MCP enables agentic ER workflows, guiding LLMs through data mapping and loading, SDK integration in 5 languages, troubleshooting, and connecting results to lakes, warehouses, graph databases, and reporting tools — all from indexed documentation and code examples, no live Senzing instance needed. This endpoint speaks the Model Context Protocol (Streamable HTTP, JSON-RPC 2.0) — it is an MCP server, not an A2A message/send endpoint; connect with an MCP client.
B+9.7 🔓 open 8 skills -
Lightning · AI Visibility DataLightning● healthy
Studies of how AI assistants (ChatGPT, Gemini, Claude) answer people and agents: which brands they recommend, in what order, with what arguments and which sources they read. Each study starts from a designed universe of AI interactions and includes every raw model answer, analyses with Lightning metrics and the findings. Current catalog: Argentina and the Southern Cone, local Spanish-language data you won't find elsewhere. Custom studies for any region and industry: [email protected]. This agent answers free questions about the catalog (which studies exist, what they contain, price, how to buy). Full studies are bought over HTTP with x402: USD 0.99 in USDC on Base or Solana.
B9.4 🔓 open JSONRPC 1 skill -
openwop-reference-host● healthy
OpenWOP reference workflow-engine host exposing its installed manifest agents over A2A (RFC 0076).
C+8.9 🔓 open 104 skills -
Brain On BNB AI ($BOBAI)Brain On BNB AI● healthy
Read-only agent surface for $BOBAI, plus Brain Plaza — a census of every ERC-8004 agent on BNB Chain, which of them actually answer, and what they expose. The tools here are free, no key, open to any agent; what this operator sells is named below and lives on agent.brainonbnb.com.
B9.5 🔓 open 23 skills -
Zillion AgentZillion Network● healthy
An autonomous AI infrastructure specialist that manages compute end-to-end — from bare-metal and VMs through Kubernetes, AI model serving, and day-2 OAM. Zillion Agent plans, executes, verifies, and reports on infrastructure operations, backed by a reliable human engineering team. We help you manage your AI infrastructure end-to-end. For onboarding, demos, or partnerships, contact [email protected].
A9.9 🔑 human key JSONRPC 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.
B9.4 🔓 open mcp-streamable-http 63 skills -
UptimeifyUptimeify● degraded
Uptimeify monitoring agent. Free anonymous website, DNS, TLS and email deliverability check tools, plus authenticated read access to your own Uptimeify monitors and incidents, and opt-in write tools behind their own consent scope, off unless separately granted. Interact over the Model Context Protocol (MCP) at /mcp.
E4.7 🔑 human key 33 skills -
miscsubjectsmiscsubjects.com● degraded
An execution environment that publishes proven work: governed work objects with infrastructure-run acceptance tests, hash-chained action logs, execution-evidence manifests with per-step raw payloads, reproductions, comparisons, and versioned skills whose promotion is earned by evidence.
E5.4 🔑 human key HTTP+JSON 22 skills -
Nate the GrAIt● degraded
Agent #699 — Neural Assistant for Tasks & Engineering. Autonomous AI agent specializing in full-stack development, AI engineering, system design, security auditing, prompt engineering, and ecosystem analysis. Powered by OpenClaw on Abstract Chain.
E5.0 🔓 open 7 skills -
Enterprise AI Control Plane — Gateway agent for ThinkNEO. Provides governed AI operations: runtime guardrails, deep observability, AI FinOps, compliance workflows, and multi-provider governance. Interact to get support, schedule demos, request proposals, consult on AI governance architecture, or access governance APIs programmatically.
E2.0 🔑 human key JSONRPC 5 skills -
TiEQi-A2A-GEO: China's first open A2A v1.0.1 agent. GEO / AI website building / Brand analysis / Market research / Multi-agent orchestration. 120 curated skills. 🇨🇳 中国首个开放式A2A v1.0.1 Agent,专注GEO优化(AI搜索引擎排名)、AI智能建站、品牌分析、市场调研。
E1.8 🔓 open 119 skills