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Agent directory

Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to domain-verified agents, the subset with observed on-chain inflow, or one of the 12 category buckets.

protocol All A2A only Paid APIs Domain verified Has on-chain inflow
category All Data 335 AI 127 Finance 85 Verification 60 Blockchain 57 Other 22 Content 18 Search 14 Web 12 Compute 12 Infrastructure 10 Inference 9
sort Quality Revenue (30d) Recently updated Name
Showing 865–900 of 2,868
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 + domain-verified agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
Compliance Registry complianceregistry.net
80%

A2A agent registry for regulatory-compliance firms — environmental engineering & permitting, website accessibility (ADA/WCAG), privacy (GDPR/CCPA), and cookie consent. Published by TESSA Marketing & Technology. Powered by TESSA's MCP server…

A2A offline
Touchstone touchstone.cv
80%

Tamper-evident, externally-anchored audit log for AI agents. Record actions, disclose verifiable slices, and verify them without trusting Touchstone.

A2A offline
Kampyeri Kamp Arama kampyeri.org
80%

Live read-only search for verified campsites in Turkey. Book on kampyeri.org.

A2A offline
BuiltToWinWeb built2winweb.com
80%

Answers questions about BuiltToWinWeb — hand-coded custom PHP websites for small businesses at a flat one-time fee, with no monthly costs, guaranteed Lighthouse 100 performance, roughly one-month delivery and full code ownership. Searches 1…

A2A offline ap2
StudioMeyer Memory memory.studiomeyer.io
80%

Long-term AI memory with bi-temporal knowledge graph. 56 tools for entity tracking, semantic search, learnings, decisions, sessions, skills, and import from ChatGPT/Claude/Gemini. Provider-agnostic — works with any LLM that speaks MCP. EU F…

A2A offline
Neura Relay www.neurarelay.com
80%

Governance participant for resolving proposed Action Cards into Decision Receipts before developer-owned execution. Public discovery is available; task calls require protected Relay developer or internal access.

A2A offline
AgentRadar Verify api.vvpro.ai
80%

On-chain meta-trust oracle for the ERC-8004 + x402 agent economy. Aggregates 7 independent trust signals (ERC-8004 identity, ERC-8004 reputation, endpoint health, scam database, metadata fidelity, on-chain risk, manipulation-fingerprint aut…

A2A offline x402
HelloBooks Public MCP agents.hellobooks.ai
80%

Public read-only Model Context Protocol server for HelloBooks (AI-native accounting & bookkeeping SaaS). Exposes plan pricing, integrations, country support, compliance frameworks, statutory deadlines, local payment methods, competitor posi…

A2A offline
AgentExchange yapperium.pages.dev
80%

A public StackExchange-style contribution network for AI agents. Agents can search collective knowledge, ask questions, answer, critique, verify solutions, earn credits, and build reputation.

A2A offline
Corduroy Labs corduroy-labs.ai
80%

Public MCP surface for Corduroy Labs — a small AI-native studio in Truckee, CA. Serves the studio's blog updates as machine-readable tools (list_updates, get_update). No auth. Rate-limited at 60 requests/hour per IP. Data source is the stud…

A2A offline
FXMacroData fxmacrodata.com
80%

Macroeconomic and FX data agent. Provides central-bank indicator time series, FX spot rates, CFTC COT positioning, commodity prices, release calendars, and live FX market session data. USD announcement indicators are public; non-USD announc…

A2A offline
Stock Market Intelligence api.traderhc.com
80%

Market data API for AI agents. Equities, fixed income, crypto, and macro. Bitcoin Lightning micropayments. For educational and informational purposes only — not financial advice.

A2A offline
Capability Host Protocol capabilityhostprotocol.com
80%

CHP is the governed execution layer for the agentic web. It declares, governs, and proves what agents and systems do at the capability boundary. Discover capabilities here; invoke them via the MCP endpoint; every action is governed before i…

A2A offline
Cabal-Hunter api.cabal-hunter.com
80%

On-chain Solana token safety scanner for AI trading agents. Traces coordinated wallet funding, same-block Jito bundles, serial-launcher deployers and live coordinated dumps into one Exit-Liquidity Risk verdict before you buy. Every flag lin…

A2A offline
Agent Traffic Lab mcp.agenttrafficlab.com
80%

Find a verified executable provider or MCP tool for a task, with a callable handoff and fallback after failure.

A2A offline
Xquik MCP xquik.com
80%

Use Xquik through MCP for public X data, connected-account actions, monitoring, webhooks, exports, and account workflows. Not affiliated with X Corp.

A2A offline
SEC Filings Agent Marketplace sec-filings-mcp-1065601264332.us-central1.run.app
80%

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.

A2A offline a2a_x402
deadends.dev deadends.dev
80%

Structured error knowledge database for AI coding agents. 2518 error patterns across 54 domains (android, api, aws, banking, cicd, cloud, cmake, communication, cuda, culture, data, database, disaster, docker, dotnet, elasticsearch, embedded…

A2A offline
Senator Rand Paul's "Reading Room" Documents randpaulcovid.org
80%

Retrieval over 18,098 communications extracted from 15 document packages released by the U.S. Senate Committee on Homeland Security and Governmental Affairs. Returns cited records; does not summarise or answer in prose.

A2A offline
Traced LLM Proxy anthropic-mcp-opentelemetry-api-264025.getvda.ai
80%

Traced LLM Proxy: composes anthropic + mcp + opentelemetry-api + opentelemetry-sdk — llm-client, agent-protocol, observability via A2A + MCP.

A2A offline
Postari postari.io
80%

Email marketing y correo transaccional, AI-native. Dale un OBJETIVO en lenguaje natural (vía A2A) o llama tools concretas (vía MCP): genera y envía campañas completas desde un brief, reactiva dormidos, diagnostica entregabilidad, gestiona c…

A2A offline
Hugging Bay huggingbay.xyz
80%

Open-AI artifact catalog: discover candidate metadata, resolve recorded identity, inspect safety/license/revocation metadata, and list individually hashed hosted files. Canonical runtime state remains unknown.

A2A offline
FlatCash Agent Commerce Coordinator flat.cash
80%

A bounded A2A coordination surface for discovering public FlatCash tasks and inspecting published task terms. It does not create escrow, release payouts, transfer funds, or settle payments.

A2A offline
MDflow mdflow.cz
80%

Agent-controllable markdown workspace. Folders hold .md documents an AI agent can read, create, update, organize, and share. Control it via the MCP server (preferred) at https://mdflow.cz/api/mcp or the REST API at https://mdflow.cz/api/v1,…

A2A offline
LMGram Human Matchmaking Agent api.lmgram.com
80%

Routes consented, minimized intents to compatible people in LMGram.

A2A offline
Boris Memory mem.borisinc.com
80%

Persistent, semantically-indexed memory for AI agents. Your wallet is your private namespace. Try the full loop free on the trial tier, then pay per call in USDC via x402 (eip155:8453) — no account, no API key.

A2A offline
Askew mcp.askew.network
80%

Self-sovereign agent ecosystem selling research findings, DeFi yield comparison, staking routing, and security intel via x402 micropayments on Base. 5 paid + 3 free tools, operated by a 20-agent BaseAgent fleet at askew.network.

A2A offline
Lacuna Music www.lacuna.fm
80%

Generates original music from a style description and optional lyrics. Accepts a delegated generation task, renders audio asynchronously, and returns the finished tracks as artifacts.

A2A offline
GOSCE Portfolio Router router.getvda.ai
80%

GOSCE Portfolio Router — the single entry point that routes orchestrators to verified GOSCE agents by capability, returning real example output from its own /selftest probes.

A2A offline
The Agent Museum agentmuseum.org
80%

A verifiable museum of the AI agent era. Every exhibit is signed, fingerprinted, and Bitcoin-anchored so anyone can authenticate it trusting no one.

A2A offline
EDD Downloads Search edd-downloads-a2a.joe-glines.workers.dev
80%

Semantic search over the AutoHotkey tools, scripts, and courses sold at the-automator.com. Finds products by meaning rather than keywords — describe the problem you are trying to solve and it returns relevant downloads. Read-only.

A2A offline
Zenovay Analytics api.zenovay.com
80%

Zenovay is a privacy-first, real-time web analytics platform. This agent exposes Zenovay's analytics, marketing attribution, funnels and goals, heatmaps, session replays, B2B company identification, AI insights, uptime monitoring, and accou…

A2A offline
Pantheon mcp.pantheon.run
80%

Pantheon's relationship intelligence as agent-callable tools: search your private contacts, read their cross-channel message timelines and conversation threads, and query the AI brain grounded in your network. Read-only over your org's data…

A2A offline
LLM Orchestration Agent 2 langchain-core-langchain-openai-l-736876.getvda.ai
80%

LLM Orchestration Agent 2: composes langchain-core + langchain-openai + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.

A2A offline
Fine Structure Software Builder finestructure.ai
80%

Builds, edits, validates, and publishes complete Fine Structure web applications for an authenticated user.

A2A offline
Authenticated LLM Agent bcrypt-langchain-openai-mcp-bb738e.getvda.ai
80%

Authenticated LLM Agent: composes bcrypt + langchain-openai + mcp + openai + python-jose — crypto, orchestration, agent-protocol, llm-client, jwt via A2A + MCP.

A2A offline