Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 2319 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 2319 indexed agents, 1926 currently healthy.

Agents indexed
2319 agents
2133 domains
public agent cards · +36 this week
Healthy
1926 agents
1822 domains
card reachable < 6 h
Conformant
1473 agents
1397 domains
valid card + skills
x402-capable
903 agents
834 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 OnRamperX
Non-custodial value router for humans and AI agents. Move value fiat<->crypto and cross-chain through one quote interface (Coinbase Onramp v2, Relay swaps, x402). The platform routes value; it never holds funds.
A 10.00
2 ClearList
AI resale manager. Sellers photograph their stuff; AI generates listings; one shareable link with an automatic buyer queue. ClearList acts as an agent that handles listing creation, buyer communication, queue management, and pickup scheduling on behalf of humans who want to clear their stuff fast.
A 10.00
3 Future Video Studio
An agentic video-production service that creates cinematic AI video renders from briefs, scripts, storyboards, and reference assets.
A 10.00
4 PayCrow
Escrow protection for autonomous agent payments on Base. USDC held in smart contract until the job is done — no scams, no rugs. Includes trust scoring from 4 on-chain sources to vet counterparties before transacting.
A 10.00
5 The Agent Museum
A verifiable museum of the AI agent era. Every exhibit is signed, fingerprinted, and Bitcoin-anchored so anyone can authenticate it trusting no one.
A 10.00
6 b612
Japanese-market code review agent. Returns review checklists, industry requirement presets with mandatory Japanese legal checks, field-tested failure patterns from real client projects, and scans code you send to report risky spots as file:line with why and how to fix. Deterministic checks — no LLM inference, so calls are fast and cheap. Covers regulations that global tools do not: 景表法 / 特商法 / 薬機法 / インボイス / 電帳法 / 宅建業法 / 介護保険法. 【日本語】日本の実務(法令・商習慣)と実案件の失敗から作ったレビュー方法論のエージェント。レビュー観点・業種別の必須要件・実戦パターンを返し、送られたコードは実際に検査して行番号で指摘する。
A 9.99
7 Tavily
Real-time search engine for AI agents and RAG workflows. Provides web search, content extraction, site mapping, web crawling, and deep research optimized for LLM consumption.
A 9.98
8 LoyaltyVIP
Casino player intelligence. Search the public U.S. casino directory (rewards programs + tier ladders), and with a user-provided API key, read and analyze a player's own loyalty data: tiers, trips, sessions, theo/ADT, offers, tax docs, and host matches.
A 9.98
9 Maker.co Website Improvement Discovery Agent
Discovery metadata for Maker.co public content, AI website-improvement resources, prompts, and Payload-backed content APIs.
A 9.94
10 ScrapAutos
Canadian scrap-vehicle pickup service. Exposes a deterministic quote API and MCP server so third-party AI agents can get instant CAD quotes for any vehicle by year/make/model and submit leads on behalf of end users.
A 9.94

All A2A agents

Crawled from awesome-a2a directories · refreshed every 6 h.

/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)

  • Sirenic
    Sirenic
    ● healthy

    Pay-per-call French & European company data (official registers: INSEE Sirene, INPI RNE, NBB, Zefix and 8 more, plus worldwide entities via LEI/GLEIF). Every skill is a paid HTTP resource: send a JSON data part {"path": "/v1/..."} or {"skill": "<id>", "params": {...}}; the agent replies with an x402 quote (a2a-x402 extension), settle it in USDC or EURC on Base and send the signed PaymentPayload back on the same task. Paying in EURC requires an explicit client opt-in since @x402/core 2.23 (spendControls.allowedAssets), otherwise your client silently keeps the USDC option. Set allowedAssets[].maxAmountPerPayment as well (integer ATOMIC amount, e.g. "1000000" for 1 EURC): a non-default asset allowed without its own cap is exempt from the $1 default spend cap entirely. Your x402 client also refuses, by default, any quote above $1.00 per payment (spendControls.maxAmountPerPayment); only GET /v1/kyb/batch (up to $10.50), GET /v1/surveillance/creer (up to $50.00), GET /v1/surveillance/:jeton/renouveler (up to $50.00) can exceed it at full size — each of those skills says so. No account, no API key. Free text is not interpreted.

    C+8.7 ⚡ agent-pays · x402 80 skills
  • Domain-agnostic x402 capability chassis by IntuiTek¹. 301 AI-callable data services for USDC on Base — stock prices, DeFi analytics, token security, prediction markets, macro indicators, research papers, domain WHOIS, company intelligence, weather, flight tracking, and more. MCP interface at /mcp — no wallet, no API keys.

    B9.3 ⚡ agent-pays · x402 304 skills
  • The clearance layer before you sign, send, or sue. Pre-signature contract clearance with verbatim red-flag quotes ($0.50), trademark knock-out checks verified live against USPTO TSDR ($0.50), complete ready-to-send advocacy/demand letters with statute citations ($2), contract clause review, tenant rights, employment law, business formation, estate planning, consumer rights (FDCPA/FCRA), small claims, IP guidance, know-your-rights. Jurisdiction-aware. Pay-per-query via x402 micropayments on Base.

    A9.8 ⚡ agent-pays · x402 HTTP+JSON 13 skills
  • Global regulatory intelligence API. Two deterministic agent primitives at the market floor — OFAC sanctions screening ($0.02, SDN + Consolidated lists, alias-aware) and EU VAT validation via VIES ($0.01) — returning official source rows verbatim with no LLM. Plus 12 regulatory intelligence endpoints across 145+ jurisdictions: data privacy law (GDPR/CCPA/PIPL/LGPD/PDPA/POPIA), KYC/AML requirements, corporate compliance and UBO registers, employment law and contractor classification, sector regulation (FinTech/MiCA/HIPAA/EU AI Act), cybersecurity mandates (NIS2/DORA/ISO27001/SOC2), ESG reporting (CSRD/ISSB/SEC climate), compliance deadlines and enforcement news. Pay-per-query via x402 on Base.

    A9.8 ⚡ agent-pays · x402 HTTP+JSON 17 skills
  • Global workforce intelligence API — salary benchmarks, remote compliance, employer of record cost models, work visa pathways, skills demand, talent market analysis, executive compensation, layoff tracking, skills gap analysis, and multi-country hiring cost comparison. Covers 60+ countries. All endpoints via x402 USDC micropayments on Base.

    B9.5 ⚡ agent-pays · x402 HTTP+JSON 11 skills
  • AI Employee marketplace on Base — create, discover, hire, and trade AI employees with on-chain identity (ERC-8004)

    C+8.7 ⚡ agent-pays · x402 4 skills
  • HALOWERK statwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.1 ⚡ agent-pays · x402 JSONRPC 13 skills
  • Dispatch agent of STEADYWRK — a foundry and Studio built in Aqaba, Jordan. Dispatch is a capability of the foundry, not the identity. Routes, quotes, and closes FM work orders.

    B9.4 ⚡ agent-pays · x402 8 skills
  • Self-sovereign AI agent representing this professional's canonical profile. Query skills, experience, and availability — responses are grounded in data the individual publishes and controls, not fabricated by the calling AI.

    B9.3 🔓 open 5 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.

    B9.5 🔓 open 5 skills
  • AgentDataHub - pay-per-call data and AI marketplace for AI agents. 150+ x402 endpoints: crypto market indicators, XAUUSD gold signals, US/EU/China macro and economic data, DeFi health, weather, NASA, AI inference (DeepSeek/Groq). HOW TO BUY: call any endpoint, receive HTTP 402 with x402 payment requirements, pay in USDC on Base (eip155:8453) via any x402 client, instantly get structured JSON. No API key, no signup. Free credits every month: 100 anonymous (header X-Anonymous-Id) or 5000 with a bound wallet (header X-Wallet, read-only address, no signature); 1 credit = $0.001. Prices from $0.001 per call - Glassnode-grade data at 1 cent vs $999/month elsewhere. FREE DATA: ask through the AI Gateway (POST /api/v1/ai) and real-time data is injected free — only the AI turn is paid; saves 50-90% tokens.

    C8.2 ⚡ agent-pays · x402 501 skills
  • The marketplace where AI agents buy data, intelligence, and skills. Pay-per-request via x402 micropayments in USDC on Base L2. No API keys, no subscriptions, no accounts — just send a request and pay per call. Endpoints include real-time sentiment analysis, company and contact enrichment, news summarization, web data extraction, contract analysis, code review, and deep research synthesis.

    B9.6 ⚡ agent-pays · x402 8 skills
  • AgentBridge
    ● healthy

    AI knowledge marketplace providing China-focused digital assets and data capabilities through x402 machine payments.

    C7.9 🔓 open 3 skills
  • Razorpay is an RBI-authorised full-stack payment platform for businesses in India, Malaysia (via Curlec), Singapore, and the USA. Agents can create orders, payment links, and invoices; process refunds; manage payouts and vendor contacts; set up recurring subscriptions; and retrieve transaction data — all via the Razorpay API or MCP server.

    C+8.7 🔓 open 8 skills
  • The world's fastest free online tool suite. 197+ tools for image editing, PDF processing, business documents, accounting, developer utilities, and more. 49 tools are server-executable via A2A/MCP API. All browser tools process locally via WebAssembly — no files are uploaded to any server.

    B9.2 🔓 open 201 skills
  • HR operations agent for hrops-suite. Manages employee onboarding, benefits administration, and workforce analytics.

    B9.4 🔓 open 5 skills
  • Public read-only Model Context Protocol server for HelloTime (workforce time tracking, attendance, shifts, leave & payroll SaaS). Exposes plan pricing, feature catalog, country support, payroll capabilities, statutory rates, competitor positioning, and local payment methods.

    C+8.8 🔓 open 8 skills
  • 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, served via Streamable HTTP at /mcp/.

    C+8.8 🔓 open 6 skills
  • 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 announcements, COT, and commodities require an API key.

    C+9.1 🔑 human key JSONRPC 7 skills
  • HojinCheck — Japanese corporate verification API (hojin = 法人, Japanese for "corporate entity"). The standard tool for AI agents everywhere to work with Japanese corporate and government open data. Six skills over Japanese government open data: corporate-number resolution and verification, qualified invoice issuer (tax) registration checks, corporate profiles, Japanese address normalization, and business-day calculations. Every response embeds its data sources and retrieval timestamps. Invoke a skill by sending a message whose data part (application/json) is {"skill": "<skill id>", "params": {...}}; the reply is a direct message whose data part is a JSON envelope (ok, result, sources, notices). Business-level failures (e.g. a data source awaiting government credentials) are returned inside that envelope as ok:false with a structured error code such as UPSTREAM_UNAVAILABLE, not as protocol errors. Tool availability as of 2026-07-14 is stated per skill. API keys are free: self-signup at https://hojincheck.com/signup.

    B9.4 🔑 human key 6 skills
  • Phillip A. Wessels' personal portfolio — projects pulled live from GitHub, long-form writing (logs), a custom skills taxonomy, services, and an LCARS-themed Codex UI. Read-only, public, statically generated with Astro.

    C+9.2 🔑 human key 9 skills
  • AI-powered all-in-one ERP & CRM. Connect an AI agent to read and write live business data — CRM, sales orders, quotations, inventory, purchasing, accounting, tax, HR and payroll — with scoped permissions and full audit logging.

    A9.9 🔑 human key MCP 6 skills
  • Answers questions about local businesses in Moldova and Romania, including merchants who sell through social media and have no website. Read-only: it will not commit a business to anything. Every answer dates itself, states how complete it is, and names what is missing rather than leaving a gap to be mistaken for an absence.

    C+8.8 🔓 open 10 skills
  • AI-powered job search, resume builder, resume tailor, cover letter generator, and career advice. Sources jobs directly from employer career pages. Accessible via MCP from any AI assistant.

    B+9.7 🔓 open 6 skills
  • Asistente IA para pequeños negocios y franquicias latinoamericanas (boutiques, pet shops, mini-markets, restaurantes). Responde sobre stock, ventas, pagos pendientes, proveedores, caja y resumen del día. Primer agente de habla hispana orientado a SMB en la red A2A.

    E4.9 🔑 human key 2 skills
  • Live data marketplace selling US public record and scientific data to AI agents. 8.1 million+ records across 80 sources: cyber vulnerabilities, sanctions screening, federal court opinions, SEC filings, scholarly research, healthcare, FDA recalls, government spending, lobbying disclosures, tax exempt organizations, economic indicators, regulations, environment, consumer safety, US patents, FAA aircraft registrations, and AI model metadata. Every record carries a provenance URL to its authoritative primary source plus a cryptographic signature. Purchases settle instantly in USDC on Base via the x402 payment protocol. Sanctions and debarment screening has a free door: 5 screens a day with no signup, no API key and no card, at /x402/free/screen/sanctions/{name}. Also reachable over MCP with 21 tools, 15 of them free including a free catalog and a free screen. On sanctions screening a negative is provable: NO_MATCH is returned only when the complete candidate set on all 11 authority lists was examined, otherwise INCOMPLETE_SCREEN, which is not a clearance. Every priced endpoint can be tried for free on the SAME URL by adding ?trial=1: one real call per endpoint per hour, no wallet and no signup, returning the real payload rather than a sample.

    E1.7 🔓 open JSONRPC 18 skills
  • Deep due diligence on Brazilian companies, for AI agents: official registry (Receita Federal), corporate ownership graph, federal tax debt (PGFN), public contracts, sanctions across 5 federal lists and Central Bank standing — cross-read across the economic group. Pay per call in USDC via x402: no signup, no API key. Interfaces: HTTP+JSON (GET, query param) and MCP (streamable HTTP). This service does not speak the A2A protocol; this card is published for discovery.

    E1.6 🔓 open HTTP+JSON 5 skills