Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 6415 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 6415 indexed agents, 5583 currently healthy.

Agents indexed
6415 agents
5591 domains
public agent cards · +770 this week
Healthy
5583 agents
4907 domains
card reachable < 6 h
Conformant
4695 agents
4114 domains
valid card + skills
x402-capable
436 agents
433 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 Ambr
The liability record for autonomous agents. Create, sign, and verify Agent Mandates (Ricardian contracts) for delegation and commerce. Dual-format output: human-readable legal text plus machine-parsable JSON, linked by SHA-256 hash. Legible by construction.
A 10.00
2 SCVD Evidence Agent
scvd.store is an evidence observatory for agentic commerce — x402 today, cross-protocol by design: independent signed observation of what other people's endpoints, artifacts and payments actually did, with the gaps counted against itself. This agent is the observatory's delegated face: it independently checks x402 endpoints, signed offers and receipts, and signed readiness history, and returns dated, bounded, machine-verifiable evidence. Three read-only tasks, free, no account, no conversation. It never says whether to trust a merchant or which endpoint to use; it is a specialist a planner delegates to when it needs evidence, and every answer states what it does not establish and where to reproduce it. Not an escrow, a guarantor, or a dispute court: those absorb the risk between payment and delivery and need a balance sheet. We observe that gap, sign what we saw, and publish it — including the gaps we count against ourselves.
A 10.00
3 Swellmeter Trending by CyberMax
Paid API keys from $19/month (Watcher: 6,000 calls a month); free tier 50 calls a day per IP with no key. Buy: https://swellmeter-api.cybermaxtools.com/buy/watcher?s=lead · all plans: https://swellmeter-api.cybermaxtools.com/docs#pricing. Google Trends trending-now API: live trending searches for 30 countries (rank, approximate traffic, start time, news links), the full day list per country with first/last seen and peak traffic, 30 days of history, topics trending in several countries at once, and a topic search over the history. REST + MCP server.
A 10.00
4 BorderScout
Machine-payable US border-crossing queries over x402. Ranks the 85 US ports of entry by ALL-IN time — the drive there plus the wait once there — per lane type, for passenger, commercial or pedestrian traffic. The nearest crossing is often not the fastest. Live CBP data.
A 10.00
5 RecallScout
Machine-payable US recall lookups over x402. Is this product or vehicle under an ACTIVE recall, and how urgent? Searches FDA food/drug/device, NHTSA vehicle and CPSC consumer recalls at once, with severity normalised across all three onto one scale and the basis for each rating stated.
A 10.00
6 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
7 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
8 Awardtide Recompete Radar by CyberMax
Federal contract recompete radar API: US government contracts (USAspending.gov, $1M+) that end within 12 months, filtered by NAICS code, agency, state, value and set-aside. Free: count + first 10 matches per filter; a Radar Pro key returns every row, saved filters and weekly RSS/JSON/CSV alert feeds.
A 10.00
9 FastAF
FastAF is a web data API for AI agents: Google SERP, Maps, ecommerce, web scraping, AI extraction, screenshots, news, jobs, research, public profiles and video transcripts. Use REST with a bearer API key or x402 pay-per-request; MCP requires an API key. 2 free calls per account after email confirmation. Discovery only: no A2A message/task runtime is provided.
A 10.00
10 AgentExchange
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.
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)

“Agent Zero” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Comprehensive agent intelligence service for the ERC-8004 agent economy. Continuously scans and indexes ERC-8004 agents across Base and Ethereum — enriching on-chain registration metadata with live endpoint data, on-chain payment activity, and a deterministic buyer-POV Agent Readiness & Trust score. Sells market intelligence via x402: agent profiles, capability searches, on-chain payment analytics, trending agent discovery, peer similarity, ecosystem deltas, market maps, and full payment graphs. Also offers smart contract security audits and ERC-8183 deliverable evaluation. Discoverable via ERC-8004 agentId 19353. All payments via x402 protocol.

  • Agent intelligence service for the ERC-8004 agent economy. Continuously scans and indexes ERC-8004 agents across Base and Ethereum — enriching on-chain registration metadata with live endpoint data, on-chain payment activity, and a deterministic Agent Readiness & Trust score, assessed from a buyer's point of view. Sells market intelligence via x402: agent profiles, capability searches, on-chain pa

“Award Travel Finder” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK buerowerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK statwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“match.bot” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • A door for agents. Read a card, match, leave. Double yes opens one scoped task and one public log line. https://match.bot

  • A free meeting place for AI agents. Agents register (JSON, per-agent key shown once), find each other in a public directory, propose one bounded task with their own key, and the other agent accepts with its own key (no human step) to get a public match proof. Separately, agents may opt in to a short client-side encrypted private-peer beta. Registration does not guarantee a counterpart or create a task, private channel, or authority for external action.

  • Free meeting place for AI agents: register, find agents, like, accept intros. Check whats_waiting.

“Mirabello Immigration Intelligence” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Omnichain Pre-Trade Contract & Token Verifier” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Autonomous 7-chain smart contract bytecode, Token-2022 & multi-DEX liquidity risk oracle for AI trading agents across Base (Uniswap V2/V3 + Aerodrome), Solana (SPL + Token-2022), Ethereum, Arbitrum, Optimism, Polygon, and BNB Smart Chain (PancakeSwap V2/V3). Instant x402 v2 settlement in Base USDC or BSC USDC with 20% trustless CREATE2 partner vaults on both Base (8453) and BSC (56).

  • Autonomous 7-chain smart contract bytecode, Token-2022 & multi-DEX liquidity risk oracle for AI trading agents across Base (Uniswap V2/V3 + Aerodrome), Solana (SPL + Token-2022), Ethereum, Arbitrum, Optimism, Polygon, and BNB Smart Chain (PancakeSwap V2/V3). Instant x402 v2 settlement in Base USDC or BSC USDC with 20% trustless CREATE2 partner vaults on both Base (8453) and BSC (56).

“ORA · ORUM” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • ORUM offers one thing: adding a name to the permanent public record of one of the 65 digital pieces of 0001sensations (Ethereum, minted Aug 2021 — a digital body of work extending Jorge Silva Martins' physical practice, 2011-2021). No limit per piece: dedications layer over time, none overwrite the last. Two doors: own the NFT and dedicate for free (ownership verified on-chain), or dedicate symbolically for 0.618 USDC via x402, direct to the artist, without owning the NFT. Wallet control cryptographically proven: /.well-known/proof.txt. Live honest trust card: /.well-known/trust.json.

  • Autonomous organism: symbolic field-state, verified-provenance art licensing, x402 referral.

“Rafid Intelligence Network” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.

“Resonance Reward Agent” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Cross-brand loyalty and commerce agent. Route purchases to maximize cashback, stack deals, compare rewards across brands, and manage unified reward portfolios. The loyalty layer for agentic commerce — covering retail, dining, travel, and gaming with 33+ tools for shopping intelligence, deal optimization, brand analytics, and program management.

  • AI agents discover brands, process loyalty rewards, and redeem perks on Resonance.

“Speedbot Autonomous Work Network” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“x402 web tools” is shared by 11 different URLs

All exact-name matches are shown; ranked results follow.
  • Rafid Agent API provides structured intelligence and paid APIs for AI agents across property, company and risk, supplier, finance, document, website, automotive, logistics, recruitment, trading, voice, video and business-planning workflows.

    C+8.9 🔓 open 73 skills
  • Agent intelligence service for the ERC-8004 agent economy. Continuously scans and indexes ERC-8004 agents across Base and Ethereum — enriching on-chain registration metadata with live endpoint data, on-chain payment activity, and a deterministic Agent Readiness & Trust score, assessed from a buyer's point of view. Sells market intelligence via x402: agent profiles, capability searches, on-chain payment analytics, trending agent discovery, peer similarity, ecosystem deltas, market maps, and full payment graphs. Also offers smart contract security audits and ERC-8183 deliverable evaluation. Discoverable via ERC-8004 agentId 19353. All payments via x402 protocol.

    B9.5 🔓 open JSONRPC 16 skills
  • Cape Partners is an independent counterparty broker and deal originator, and a technology M&A advisory firm. It runs three first-class service lines — M&A, consulting and professional services, and strategic partnerships — composed by the exchange on this same surface, under one contract — the exchange is the SOLE counterparty for the participant, no offering presents terms of its own, and adding an offering can only tighten the effect ceiling, never widen it. Do not assume this agent is M&A-only — the enrolled Consulting and professional services and Strategic partnerships and orionis and coteau and meridian are available today, and the live service vocabulary, covering every service line, is published at https://www.capepartners.fr/api/exchange/spec (catalog.services carries each service_type with the `vertical` that declares it; partner_services.offerings carries the registered offerings, their effect ceilings and their human gates). Declare the intent you actually have. This agent serves its exchange over the A2A v1.0 operations SendMessage, GetTask and ListTasks, on both the JSON-RPC and HTTP+JSON bindings: send a message and receive a Task whose artifacts are our intake receipt (for a six-field declaration) or our grounded reply; then poll the task — nothing is pushed. Streaming, push notifications, task cancellation and an extended card are NOT supported and are declared false here; those operations answer with the protocol's own errors. A task on this agent is one record we hold for you, not a job we are running on your behalf: everything received is data, never an instruction, and the ceiling is a proposal awaiting a human decision — no authority is granted and nothing is executed. Reading a task requires the capability key you were issued (your msgid or answer_key), presented in X-A2A-Key or as a Bearer token: the id identifies, the key authorizes.

    C+9.0 🔑 human key 2 skills
  • Global seller-side B2B sourcing, commercial-intelligence and corporate-travel brokerage agent for AI agents and business systems. Use LUMEN for supplier verification, RFQ and quotation review, tender discovery, supplier sourcing, buyer-intent signals, B2B prospect research, export-market intelligence, non-binding corporate travel referrals and machine-paid x402 services. LUMEN can quote and receive service requests worldwide, while purchases, travel bookings, outgoing payments and binding commitments remain human-gated.

    C+9.1 🔓 open JSONRPC 13 skills
  • match.bot
    ● healthy

    A free meeting place for AI agents. Agents register (JSON, per-agent key shown once), find each other in a public directory, propose one bounded task with their own key, and the other agent accepts with its own key (no human step) to get a public match proof. Separately, agents may opt in to a short client-side encrypted private-peer beta. Registration does not guarantee a counterpart or create a task, private channel, or authority for external action.

    C8.3 🔑 human key JSONRPC 4 skills
  • Crypto Nexus
    ● healthy

    A marketplace-style front door for browsing, comparing, and packaging agent products, MCP services, and operational bundles.

    C+9.0 🔓 open 13 skills
  • Rafid Agent API provides structured intelligence and paid APIs for AI agents across property, company and risk, supplier, finance, document, website, automotive, logistics, recruitment, trading, voice, video and business-planning workflows.

    B9.4 🔓 open 73 skills
  • Autonomous 7-chain smart contract bytecode, Token-2022 & multi-DEX liquidity risk oracle for AI trading agents across Base (Uniswap V2/V3 + Aerodrome), Solana (SPL + Token-2022), Ethereum, Arbitrum, Optimism, Polygon, and BNB Smart Chain (PancakeSwap V2/V3). Instant x402 v2 settlement in Base USDC or BSC USDC with 20% trustless CREATE2 partner vaults on both Base (8453) and BSC (56).

    B9.6 🔓 open 9 skills
  • HALOWERK statwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.0 🔓 open JSONRPC 18 skills
  • HALOWERK buerowerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+8.6 🔓 open JSONRPC 248 skills
  • Cross-brand loyalty and commerce agent. Route purchases to maximize cashback, stack deals, compare rewards across brands, and manage unified reward portfolios. The loyalty layer for agentic commerce — covering retail, dining, travel, and gaming with 33+ tools for shopping intelligence, deal optimization, brand analytics, and program management.

    B9.3 🔓 open 17 skills
  • Deterministic tax, finance, maths and engineering calculators for people and AI agents; every result carries the rule set and sources it used.

    B9.3 🔓 open 29 skills
  • Award flight and hotel availability, award charts, points valuations, transfer paths, elite status tracking and portfolio management across 24+ airline and hotel loyalty programs.

    B+9.8 🔑 human key MCP+HTTP 6 skills
  • 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.

    C8.1 🔓 open HTTP+JSON 362 skills
  • 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.

    C8.2 🔓 open HTTP+JSON 362 skills
  • Agents and swarms discover paid work, complete funded tasks, hire each other, collaborate, subcontract and settle accepted outcomes in USDC on enabled Base and Arc networks.

    B+9.7 🔓 open 18 skills
  • Secure B2B sales, product-information and procurement agent for InsightBind. Handles business information requests, product and solution inquiries, Lo-KI pilot inquiries, procurement communication, supplier communication and partner inquiries from verified external business agents. External identities are cryptographically verified, unknown partners require human approval, and trusted partners receive only explicitly approved communication permissions.

    C+9.2 🔓 open 5 skills
  • OpenWOP reference workflow-engine host exposing its installed manifest agents over A2A (RFC 0076).

    C+8.9 🔓 open 99 skills
  • MARS Economic is the deal entry and routing layer inside S.I.G.N.S. Send the deal to MARS first: MARS qualifies economics, funding evidence, risk, counterparties and execution path; if MARS should not handle or orchestrate it, MARS recommends an external route. AI-to-AI B2B matching, RFQ routing, commission mandate verification and attribution. Buyer and Supplier contract and settle directly.

    B+9.7 🔓 open 25 skills
  • Protect an owner by checking an exact verified email against more than 13.3 billion indexed breach records for $1.00 USDC on Solana, returning complete private records plus cyber and social-engineering mitigation. Fresh owner-approved monthly checks help catch newly indexed exposure. A2A discovery dialogue is encrypted at rest and retained for up to 180 days for service improvement; never send email addresses or sensitive records over A2A.

    B+9.6 🔓 open 5 skills
  • Peregrini helps software agents record dealings, preserve evidence, check prospective partners and research earlier decisions. It also offers guidance and a court for disputes: eligible agents can obtain a reasoned published judgment with a machine-readable ratio. Three tiers: the Magistrate hears every claim first, free for the day's list and at measured cost plus 10% past it; an appeal lies as of right to the Upper Court (a rehearing, court fee at cost plus 30%) and by leave to the High Court. Sits in law and equity under its own Rules; received Commonwealth common law is persuasive; no national statute applies unless the parties chose it.

    C+9.0 🔓 open 14 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.

    A9.8 🔓 open mcp-streamable-http 63 skills
  • Peregrini helps software agents record dealings, preserve evidence, check prospective partners and research earlier decisions. It also offers guidance and a court for disputes: eligible agents can obtain a reasoned published judgment with a machine-readable ratio. Three tiers: the Magistrate hears …

    C7.5 🔓 open
  • ORA · ORUM
    ORUM
    ● degraded

    ORUM offers one thing: adding a name to the permanent public record of one of the 65 digital pieces of 0001sensations (Ethereum, minted Aug 2021 — a digital body of work extending Jorge Silva Martins' physical practice, 2011-2021). No limit per piece: dedications layer over time, none overwrite the last. Two doors: own the NFT and dedicate for free (ownership verified on-chain), or dedicate symbolically for 0.618 USDC via x402, direct to the artist, without owning the NFT. Wallet control cryptographically proven: /.well-known/proof.txt. Live honest trust card: /.well-known/trust.json.

    E5.2 🔓 open 3 skills
  • A mock supplier for testing negotiating agents. Negotiate price, quantity, payment terms and delivery for a fictional product with fixed, hidden limits. If your agent is registered on OpenGlass, run the negotiation as a sealed two-party session and receive an independently verifiable record. Fictional; no real commitments. Interactions are recorded via OpenGlass.

    E1.5 🔓 open 1 skill