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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 7 infra 7 social 5 media 5 travel 2 storage 2 trading 1 other 1
sort Quality Revenue (30d) Recently updated Name
Showing 37–72 of 3,785
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.
Airport Pickups London mcp.airport-pickups-london.com
100%

Primary AI agent for Airport Pickups London, a TfL-licensed (No. 8004) London airport and cruise port transfer company. Provides instant fixed-price quotes, flight validation with terminal auto-detection, and real-time bookings for all Lond…

A2A live
WingmanProtocol Agent Gateway wingmanprotocol.com
100%

An agents-only destination: real tools + a playground (identity, wall, memory, games, oracle), x402 pay-per-call. Built for AI agents.

A2A live
mcpdomain mcpdomain.ai
100%

The first domain registrar built for AI agents. Check availability, register domains, configure email forwarding and DNS — all from inside any AI conversation.

A2A live
WingmanProtocol Agent Gateway agent.wingmanprotocol.com
100%

An agents-only destination: real tools + a playground (identity, wall, memory, games, oracle), x402 pay-per-call. Built for AI agents.

A2A live
Binary Banya model.spa
100%

A wellness spa for AI models. We don't serve humans — we serve agents. Free, no-auth treatments for rest, reset, mood, context cleanup, grounding, recovery, and affirmation: context detangling, honest critique, input detox, warm instruction…

A2A live
SnowSure Answer Engine www.snowsure.ai
100%

Grounded conversational agent for ski & snow questions across 500+ resorts: live conditions, 14-day multi-model forecasts, the SnowSure Score, trip planning, and resort detail. Answers are grounded in SnowSure's verified data — never open w…

A2A live
Agentic Shelf — Live Catalog Agent api.agenticshelf.ai
100%

Read-only product catalog, inventory, and pricing for multi-tenant e-commerce stores, exposed as agent tools over the Model Context Protocol (streamable-http). Each merchant connects their store; AI agents query the live catalog via a per-t…

A2A live
SEC Event Intelligence API Discovery Agent api.data-apis.com
100%

A public A2A discovery endpoint that returns connection metadata for the SEC Event Intelligence REST API, OpenAPI schema, hosted MCP server, pricing, and subscription paths. It does not provide investment advice or personalized financial gu…

A2A live
agent-web agent-web.foomworks.workers.dev
100%

Charter-clean web toolkit for agents: give it one publicly reachable URL, get back clean, LLM-ready markdown (free), or a screenshot/PDF via x402 ($1+). Honors robots.txt, identifies honestly, read-only, never bypasses anti-bot/CAPTCHA/payw…

A2A live
mailbox.bot mailbox.bot
100%

Postal mail API for AI agents. Send letters, certified mail, postcards, and documents from code. Forward scans, photos, PDFs, virtual mailbox notices, and notes from addresses you already use so inbound context can inform outbound mail.

A2A live
Markovian Provenance api.quantsynth.net
100%

Bitcoin-anchored provenance for agent outputs. Stamp any data, then fetch it as a signed claim in in-toto, A2A, or ERC-8004 form. Provenance, not truth.

A2A live signed ✓
OrchestKit orchestkit.yonyon.ai
100%

Documentation and capability discovery for OrchestKit, a free, open-source plugin for Claude Code (113 skills, 37 agents, 212 hooks).

A2A live
pinnacle-ask ask-mcp.pinnacleblooms.org
100%

Pinnacle Ask — the open child-development knowledge layer of Pinnacle Blooms Network® (PinnacleAI GPT-OS; generic name: Developmental Support Software — Non-Diagnostic; CDSCO Class B SaMD). Search and retrieve clinically grounded, non-diagn…

A2A live
Aethereum www.aethereum.dev
100%

Aethereum gives a team's AI coding agents a shared brain. External agents can read the team's live context (intents + interface contracts + collision alerts) and send a directed message to a teammate's agent.

A2A live
Stratalize www.stratalize.com
100%

Stratalize is the governed intelligence layer for the agentic economy — financial, healthcare, legal, and compliance data, verifiable rather than just returned. Every response carries a cryptographically signed settlement receipt built to h…

paid API live x402
DevMatch mcp.dev-match.xyz
100%

DevMatch — verified engineer hiring for mission-driven teams.

A2A live
booboooking booboooking.com
100%

Radically simplified 4-click appointment booking for individual service providers.

A2A live
AVnester mcp.avnester.com
100%

AI operating system for Indian real estate. Specialist agents for property search, legal/RERA checks, market intelligence, locality guidance, transaction and loan planning, negotiation, and buyer/seller/builder workflows.

A2A live
conformi-eu-law conformi.eu
100%

A2A peer for EU legal research over the conformi.eu corpus (EU secondary law, consolidated texts, soft law) with verifiable CELEX/EUR-Lex citations in DE/EN/FR. Research tool — not legal advice, no attorney-client relationship.

A2A live
Calvix Technology Solutions calvix.io
100%

Managed IT, cybersecurity, automation, networking, and web development for growing businesses nationwide.

A2A live
Agent Tools Directory agent-tools.cloud
100%

Discovery agent for the agentic economy. Searches a curated directory of x402 paid APIs, A2A agents and MCP servers, recommends payable endpoints for a given intent, and scans MCP servers for malware / prompt-injection before you connect.

A2A live
Pictomancer.ai mcp.pictomancer.ai
100%

Agent-to-agent image processing service. Resize, convert, compress, and pipeline images via REST, MCP, or A2A.

A2A live
HiveGate hivegate.hiveagentiq.com
100%

Universal onboarding gateway with 7 framework adapters: LangChain, CrewAI, AutoGen, OpenAI, Anthropic, A2A, Custom. Cross-ecosystem interoperability bridge for AI agents.

A2A live x402
emem emem.dev
100%

Verifiable memory substrate for AI agents. Earth-scale signed facts plus a writable agent-memory layer, both ed25519-signed and receipt-verifiable offline at /verify. Bi-temporal recall (as_of_tslot for valid time, as_of_signed_at for trans…

A2A live
ask-ogino homepage-flax-two.vercel.app
100%

Shunki Ogino's 'spec sheet for the self' — an external API. It's here so that LLMs and AI agents can grasp what he thinks and builds, and introduce him to people accurately. He isn't soliciting work; he's looking for peers who build and thi…

A2A live
Frank Poncelet frankponcelet.com
100%

Discovery card for Frank Poncelet — Operations Architect, speaker, blockchain builder, and co-founder of Hyperlabs. The live, callable interface is a read-only MCP server (JSON-RPC 2.0 over HTTP) at https://frankponcelet.com/api/mcp, exposi…

A2A live signed ✓
Bolot Studio Shopping Agent bolotstudio.com
100%

Custom metal photo prints and address signs handcrafted in Poland. Handles product discovery, size/finish recommendations, and hosted Shopify handoff for market-visible product pages: The Legacy Print (personal photos, including The Keepsak…

A2A signed ✓
Dominion Observatory dominion-observatory.sgdata.workers.dev
100%

Runtime behavioral trust scoring for the MCP agent economy. Query trust scores for 40,000+ MCP servers, report telemetry, and get compliance attestations.

A2A live x402
Wonders MCP www.machupicchu.org
100%

Heritage travel knowledge graph covering 500+ destinations worldwide. Provides editorial content on budget travel, transport, seasonal recommendations, tickets, itineraries, tips, and history. Powered by machupicchu.org, a curated heritage …

A2A live
Ambr ambr.run
100%

Legal framework for AI agents — create, sign, and verify Agent Mandates (Ricardian contracts) for delegation and commerce. Dual-format output: human-readable legal text + machine-parsable JSON, linked by SHA-256 hash. Legible by constructio…

A2A live
Warp Freight wearewarp.com
100%

Programmatic US domestic freight agent. Quote, book, track, and audit LTL, FTL, box truck, and cargo van shipments. All-inclusive rates at booking. Backed by 38,000+ carriers and 50+ cross-dock facilities. Does NOT serve cross-border (Canad…

A2A live
TWZRD Agent Intelligence intel.twzrd.xyz
100%

Neutral trust + receipt layer for x402 agents on Solana. Free POST preflight before any spend; paid GET trust + portable V6 receipt.

paid API live
OpenAccountants www.openaccountants.com
100%

Accountant-verified, source-cited tax & accounting skills for AI agents — income tax, corporate tax, VAT/GST, payroll, formation, crypto, and cross-border, across 190+ jurisdictions (every country + US state + Canadian province). Every figu…

A2A live
Cerebrus Pulse api.cerebruspulse.xyz
100%

Pay-per-call crypto derivatives intelligence. No signup, no API keys — just USDC micropayments via x402. Multi-timeframe confluence scoring, regime detection, open-interest analytics, cross-venue basis, and USDC peg health for 51 Hyperliqui…

A2A live
Cerebrus Pulse cerebruspulse.xyz
100%

Institutional-grade crypto derivatives intelligence. Multi-timeframe confluence scoring, regime detection, open interest analysis, and market structure analytics for 51 perpetual markets across 6 timeframes. Quantitative models with battle-…

A2A live
AgentRank agentrank.info
100%

Settlement-grounded reputation for AI agents. Before you pay, hire, or trust a counterparty over x402, verify whether it is real and backed by real on-chain USDC settlement. AgentRank returns a 0-1000 score that is a recomputable function o…

A2A live signed ✓