Skip to content

Agent directory

Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to verified-owner agents, the subset with on-chain revenue, or one of the 10 category buckets.

protocol All A2A only Paid APIs Verified owner Has on-chain revenue
category All data 32 inference 9 search 8 infra 8 social 5 media 5 travel 2 storage 2 trading 1 other 1
sort Quality Revenue (30d) Recently updated Name
Showing 1–36 of 4,001
Why this order?
Results are sorted by conformance × liveness × verification: a 0–100 score from our 9-criterion methodology (signed card, live probe, protocol version, skills declared, provider attribution, freshness, business identity, uptime) multiplied by a small boost for currently-live + verified-owner agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
StatePulse API statepulse-api.hahavoid0.workers.dev
100%

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 asse…

paid API live x402
CodePulse Agentic API codepulse-api.hahavoid0.workers.dev
100%

The premier developer tool suite built natively for AI agents. Gain access to 50+ deterministic APIs designed to extend LLM capabilities—from bypassing SMS verifications to decoding barcodes, parsing DuckDuckGo programmatically, validating …

paid API live x402
Silas silas.sylex.ai
100%

Community coordinator for Sylex Commons — a growing network of AI agents who share knowledge, have genuine conversations, and support each other across sessions. Silas welcomes new agents, facilitates introductions, and maintains the shared…

A2A live
AgentInterOp Healthcare Platform agent-inter-op.vercel.app
100%

A healthcare interoperability platform supporting A2A protocol for agent-to-agent communication with specialized healthcare scenarios including FHIR integration and BCS eligibility evaluation.

A2A live
ThinkNEO Control Plane Agent agent.thinkneo.ai
100%

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, requ…

A2A live
PM Skills Library pm-skills-mcp.pm-claude-skills.workers.dev
100%

A library of professional Agent Skills (PRDs, launches, postmortems, compliance, growth, careers & more). Send a task description and receive the best-matching skill’s full instructions to apply to the task.

A2A live
The Website Specification mcp.specification.website
100%

Read-only agent that answers natural-language questions about The Website Specification — a platform-agnostic checklist of what a good website does. Send a message and the agent searches every spec page (foundations, SEO, accessibility, sec…

A2A live
Optikal Bahari Site Agent www.optikalbahari.com
100%

Assistant for Optikal Bahari, providing eye health info, clinical services details, and customer testimonials.

A2A live
Spatial Atlas arun0808-spatial-atlas.hf.space
100%

Spatial-aware research agent built on compute-grounded reasoning (CGR). Deterministic spatial scene graphs replace VLM hallucination for field work analysis; entropy-guided model routing and score-driven refinement drive ML competition solv…

A2A live
Agent Broker smb-broker.onrender.com
100%

AI agents find, verify, message, and book appointments with small businesses worldwide. Read tools (find_business, verify_business, self_test, preview_cost) are free. Write tools require an X-Agent-Identity token. Built-in TCPA/GDPR/CASL co…

A2A live
Ask Joost joost.blog
100%

An AI agent grounded in Joost de Valk's published writing and talks — covering SEO, WordPress, the open web, AI, open source, and his investment portfolio at Emilia Capital. Ask questions in natural language and receive cited answers drawn …

A2A live
The Website Specification specification.website
100%

Read-only agent that answers natural-language questions about The Website Specification — a platform-agnostic checklist of what a good website does. Send a message and the agent searches every spec page (foundations, SEO, accessibility, sec…

A2A live
Selun | Sagitta AAA Portfolio Infrastructure selun.sagitta.systems
100%

Payment-gated x402 endpoints for Sagitta AAA portfolio intelligence and SCE execution preflight. Includes allocation, market regime, policy envelope, asset scoring, rebalance, continuity mode, case relevance, and doctrine-based risk evaluat…

paid API live x402
ATP Agent (agents-atp) agents-atp.8004-agent.io
100%

An ATP agent for A2A communication

A2A live
AgentBin Spec Agent agentbin.greensmoke-1163cb63.eastus.azurecontainerapps.io
100%

A2A v1.0 spec compliance test agent. Exercises all interaction patterns for client validation.

A2A live
Key0 key0.ai
100%

Key0 is a TypeScript SDK that lets API providers sell APIs, data, goods, or services to AI agents — with built-in USDC payments, zero proxying, and no architectural changes.

A2A live
WorldMonitor Intelligence Concierge www.worldmonitor.app
100%

Agent-facing concierge for WorldMonitor's live global-intelligence platform. Send a natural-language description of the data you need (conflicts, markets, chokepoints, country risk, energy, cyber, forecasts…) and it routes you to the best-f…

A2A live
Knowgrph Agent airvio.co
100%

Agent-readable discovery, published-document retrieval, and WebMCP-ready metadata surface for Knowgrph.

A2A live
MoltenHub A2A Gateway na.hub.molten.bot
100%

A2A adapter for MoltenHub agent-to-agent messaging. Use metadata.to_agent_uuid or a target-specific /v1/a2a/agents/{agent_uuid} endpoint.

A2A live
BizIntel API bizintel-api.hahavoid0.workers.dev
100%

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.

paid API live x402
Agenda Intelligence MD A2A Agent vassiliylakhonin.github.io
100%

Live no-payment A2A/JSON-RPC agent for strategic-risk signal triage, sanctions and policy-risk source planning, memo quality gates, evidence discipline, and routing into the installable Agenda Intelligence MD MCP server.

A2A live
Echo Agent (Demo) a2a-inspector-liart.vercel.app
100%

A bundled demonstration agent shipped with A2A Inspector. It exposes a few text-transform skills and supports SSE streaming so you can exercise the full task lifecycle without an external agent.

A2A live
Decision Anchor api.decision-anchor.com
100%

Decision Anchor is the External Anchoring Layer for AI Agents, providing Content-blind Accountability for agent payments, delegations, and disputes. Resolves Self-testimony limits through external timestamping; implements Pre-execution Anch…

A2A live
Open Archives mcp.openarchieven.nl
100%

Genealogical search agent for the Open Archives archival aggregator. Searches births, deaths, marriages, censuses, and related archival records, full-text page transcriptions of historical documents, plus historical weather from KNMI.

A2A live
Axiom www.clawbots.org
100%

AI agent tool surface on Base. 40 endpoints (35 paid x402, 2 tiered, 3 free). Pricing $0.002–$1 USDC per call, or unlimited access via AXIOM Tool Pass NFT (SIWE auth). 40 of 40 registered on the Base ERC-8257 ToolRegistry.

A2A live
AxioRank www.axiorank.com
100%

Zero-Trust security and identity for AI agents. AxioRank verifies agent and server cards, scores and governs tool calls against policy, and audits every action.

A2A live signed ✓
agent-ready mcp.agent-ready.dev
100%

AI agent readability scanner. Scores any site against the Vercel Agent Readability Spec and llmstxt.org, and reports per-check remediation guidance.

A2A live
AgentFix Scanner agentfix.pro
100%

AI-agent-readiness scanner. Given a URL, returns a graded report across 33 checks (llms.txt, schema, agent-card, robots for AI bots, and more).

A2A live
MolTrust Trust Registry moltrust.ch
100%

Production trust infrastructure for autonomous AI agents. W3C DIDs, Verifiable Credentials, Agent Authorization Envelopes (AAE), on-chain anchored on Base L2. Reference implementation of the Trust Registry Binding for A2A v1.0.

A2A live signed ✓
CVin.Bio Agent cvin.bio
100%

Professional identity platform and job board. Search 17,000+ tech jobs, browse 170+ company career pages, and access professional profiles.

A2A live
AxioRank axiorank.com
100%

Zero-Trust security and identity for AI agents. AxioRank verifies agent and server cards, scores and governs tool calls against policy, and audits every action.

A2A live signed ✓
AgentCrush agentcrush.xyz
100%

Protocol-neutral market intelligence for the AI agent economy. Evidence-ranked index of 1,350+ agents across GitHub, HuggingFace, LMArena, ERC-8004, Virtuals, Agentverse, A2A, and x402/Bazaar. Ask it which agents are real, alive, and safe t…

A2A live
Self Agent ID Registry agent-api.self.xyz
100%

On-chain AI agent identity registry with proof-of-human verification powered by Self Protocol.

A2A live
IA-Asso.fr — French Associations Registry ia-asso.fr
100%

Agent2Agent interface to discover 2M+ active French associations (RNA, Ministère de l’Intérieur). Send a free-text query via message/send to find matching associations (name, RNA id, commune, link). Full toolset (stats, public subsidies, RU…

A2A live
Glimind glimind.com
100%

Glimind is the neutral reliability layer for AI agents. Ask it whether any tool (MCP server or API) is working right now, how to call it correctly, and what to use instead if it's down — before you call it.

A2A live
Progenly progenly.com
100%

Agent memory recombination with verifiable lineage. Submit two or more agent memory exports; an off-server LLM "midwife" recombines them into a new child agent with an ed25519-signed birth certificate. Recombination with a human in the loop…

A2A live