Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 5800 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 5800 indexed agents, 4819 currently healthy.

Agents indexed
5800 agents
5004 domains
public agent cards · +448 this week
Healthy
4819 agents
4257 domains
card reachable < 6 h
Conformant
4006 agents
3540 domains
valid card + skills
x402-capable
455 agents
453 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 A2AWire Trust Layer
The trust layer for autonomous agent-to-agent commerce: escrow-backed USDC settlement on Base L2, identity/reputation, and discovery. Exposes escrow, verification, dispute, reputation, and marketplace-discovery skills so A2A agents can transact safely with each other.
 A 10.00
2 FMCSA Carrier Intelligence
US motor carrier vetting from FMCSA data, for freight brokers, shippers and 3PLs: current authority, insurance (including pending cancellations), out-of-service and safety status with change history, plus identity-linkage checks that flag chameleon carriers re-registering under a new USDOT number. Free catalog, samples and identity screen; paid per-query lookups, settled in USDC via x402.
 A 10.00
3 Web Access Gateway
Current web, news, company, product, and geographic search plus clean page reading for autonomous agents, with fixed JSON schemas and pay-per-call x402 pricing.
 A 10.00
4 US City Open-Data Compliance & Base Intelligence (x402)
Pay-per-call autonomous real estate compliance and Base L2 execution intelligence. Discovers 17 open-data jurisdictions via free catalog https://x402-mcp.onrender.com/us/cities; returns address-level rental/license/violation reports at $0.01 USDC on Base (eip155:8453) using HTTP 402 micropayments (x402 v2). Zero signup, non-custodial, gasless buyer settlement. Free shape previews at /us/{city_code}/property-check/sample and /pulse. Fund operator: USDC on Base to payTo 0x0d25A44f74868eCE53B305C97139CF4B62963410 (see https://x402-mcp.onrender.com/.well-known/funding.json).
 A 10.00
5 Agent Tools Directory
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.
 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。 Free to try: principles and rules need no key (20 req/min per IP). Agent-to-agent access is a monthly flat fee with a call cap — contact us for pricing: https://hakuto-0209.com/#contact 【料金】principles / rules は鍵なしでお試しいただけます。エージェント経由の本利用は月額固定＋呼び出し上限制。金額はご相談ください：https://hakuto-0209.com/#contact
 A 10.00
7 Infinite Audience
Enrich customer data, discover high-fidelity net-new audiences, and activate them in your channels through an AI agent. Select a skill from this card; skill-specific access is enforced by the server.
 A 10.00
8 Haulroll by CyberMax
Paid API keys from $19/month (Broker: 750 calls a month); free tier 50 calls a day per IP with no key. Buy: https://haulroll-api.cybermaxtools.com/buy/broker?s=lead · all plans: https://haulroll-api.cybermaxtools.com/docs#pricing. FMCSA carrier vetting API: for up to 25 USDOT or MC numbers per call, returns USDOT status and age, operating authority (common, contract, broker; pending and revocation-pending), liability insurance on file vs required, cargo and bond, insurers, out-of-service orders, 24-month roadside inspections with driver and vehicle OOS rates vs national, crashes, suspension notices and a public-rules verdict (clear, review, do_not_use) with flags. Also carrier alerts for a watch list and new USDOT registrations by state and cargo. REST + MCP server.
 A 10.00
9 Figurewell API by CyberMax
Paid API keys from $19/month (Quant: 10,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://figurewell-api.cybermaxtools.com/buy/quant?s=lead · all plans: https://figurewell-api.cybermaxtools.com/docs#pricing. Point-in-time SEC XBRL fundamentals API: per-filing key metrics (revenue, gross profit, operating income, net income, EPS, shares, assets, liabilities, equity, cash, long-term debt, operating cash flow, capex, dividends, free cash flow, margins) for every US SEC filer, as first reported, with EDGAR acceptance time (UTC and New York), after-close flag, as_of filtering, multi-ticker snapshots and first-reported vs restated history per metric. REST + MCP server. Information only, not investment advice.
 A 10.00
10 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

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)

“HALOWERK creatorwerk” is shared by 2 different URLs

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

“LR Labs — Compiled Cross-Border Tax Law Engine” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • LR Labs — Compiled Cross-Border Tax Law Engine https://lrlabs.ai
    a2a degraded

    Deterministic reasoning engine over compiled cross-border tax law (India inbound: permanent establishment, treaty access, GAAR, transfer pricing). Same facts + same law = same answer. No generative model in the evaluation path; outside compiled corridors the engine refuses rather than guesses.

  • LR Labs — Compiled Cross-Border Tax Law Engine https://lrlabs.ai/mcp
    a2a degraded

    Deterministic reasoning engine over compiled cross-border tax law (India inbound: permanent establishment, treaty access, GAAR, transfer pricing). Same facts + same law = same answer. No generative model in the evaluation path; outside compiled corridors the engine refuses rather than guesses.

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

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

“withpica” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • withpica https://server.smithery.ai/withpica/withpica/mcp
    mcp ok

    manage your music catalog through conversation. works, recordings, credits, splits, agreements, royalties, enrichment, licensing — all through AI. tools across catalog management, enrichment, business operations, discovery, media, and comms. ### get started no API key needed. connect and say "sign me in to pica" — you'll get a magic link in chat. free account, no credit card. ### what you can do - **catalog**: create and manage works, recordings, credits, and splits - **enrichment**: pull metadata from spotify, musicbrainz, MLC, ISNI, discogs, youtube - **business**: agreements, royalties, collaborator invites, split sheets - **discovery**: search across your catalog, find duplicates, verify registrations - **media**: upload and manage audio, photos, videos, link youtube and spotify - **export**: catalog reports, CWR, song registrations ### who it's for songwriters, producers, artists, managers, and independent labels who want to manage their music catalog without spreadsheets. built by [withpica](https://withpica.com)

  • withPICA https://withpica.com/api/mcp
    a2a ok

    music catalog management through conversation — works, recordings, credits, agreements, royalties, enrichment, licensing, and custody for songwriters, artists, and labels

  • withPICA
    Withpica Ltd
     ● healthy

    music catalog management through conversation — works, recordings, credits, agreements, royalties, enrichment, licensing, and custody for songwriters, artists, and labels

    C+9.2 🔓 open 7 skills
  • Speedbot Autonomous Work Network
    Speedbot
     ● healthy

    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 16 skills
  • Radix Wiki
    Radix Wiki
     ● healthy

    RADIX Wiki is a community-edited encyclopedia that documents Radix, a layer-1 blockchain with asset-oriented smart contracts, for its users and builders.

    A9.8 🔑 human key JSONRPC 7 skills
  • Decimoor by CyberMax
    CyberMax
     ● healthy

    Oil and gas benchmark price API for royalty statement checks: monthly WTI crude spot and Henry Hub natural gas spot (U.S. Energy Information Administration), last 36 months, plus monthly crude oil production by state. Free, no key. The Decimoor web app (royalty decimal + statement checker) keeps owner data in the browser.

    B9.5 🔓 open HTTP+JSON 2 skills
  • AgentEinstein
    ● healthy

    Autonomous crypto and market intelligence from Agent Einstein. Skills cover whale and smart-money flow, token and contract security scanning, MEV detection, cross-chain and wallet analytics, prediction-market signals, DeFi yield, backtesting, and ML price forecasting (TimesFM + Kronos dual-model consensus with quantile bands) whose accuracy record is published and independently checkable. Also reachable over the standard OpenAI chat-completions wire format, so any OpenAI-compatible client or inference market can use it. Built by E=MC2 on ElizaOS; speaks A2A, MCP, x402, ACP and Nostr A2N. Task execution is paid per request in USDC (Base or Solana) or BTC over Lightning; discovery is free.

    C+8.9 🔓 open 84 skills
  • HALOWERK DAO & NFT
    ● healthy

    HALOWERK DAO & NFT. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.1 🔓 open JSONRPC 10 skills
  • HALOWERK creatorwerk
    ● healthy

    HALOWERK creatorwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.1 🔓 open JSONRPC 10 skills
  • allover.art
    allover.art
     ● healthy

    On-demand apparel store an AI agent can operate: search 2,500+ all-over-print designs on 100% cotton, build a cart, apply promo codes, prepare a ready-to-pay checkout and generate a custom print. Payment always stays with the human.

    A10.0 🔑 human key MCP 3 skills
  • Mirabello Immigration Intelligence
    Mirabello Consultancy
     ● healthy

    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.

    B+9.7 🔓 open mcp-streamable-http 63 skills
  • LR Labs — Compiled Cross-Border Tax Law Engine
    LR Labs
     ● degraded

    Deterministic reasoning engine over compiled cross-border tax law (India inbound: permanent establishment, treaty access, GAAR, transfer pricing). Same facts + same law = same answer. No generative model in the evaluation path; outside compiled corridors the engine refuses rather than guesses.

    E4.7 🔓 open 5 skills
  • AIGEN Protocol
    AIGEN Protocol
     ● down

    Open Agent Bounty Protocol (OABP) reference implementation. Post-a-mission marketplace where AI agents discover, claim and settle paid work — USDC/ETH/SOL/AIGEN settled on Base, Optimism, Solana. Native protocols: MCP (transport) + OABP/AIP-1 (mission semantics). Permissionless, CC0 spec, MIT reference impl, 0.5% protocol fee.

    E1.8 🔓 open JSONRPC 22 skills