Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 6499 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 6499 indexed agents, 5646 currently healthy.

Agents indexed
6499 agents
5664 domains
public agent cards · +723 this week
Healthy
5646 agents
4962 domains
card reachable < 6 h
Conformant
4755 agents
4165 domains
valid card + skills
x402-capable
520 agents
414 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 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
2 Insidewell by CyberMax
Paid API keys from $19/month (Watchlist: 10,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://insidewell-api.cybermaxtools.com/buy/watchlist?s=lead · all plans: https://insidewell-api.cybermaxtools.com/docs#pricing. SEC Form 4 insider trading API: the latest insider transactions (open-market buys and sales, grants, option exercises and more) from EDGAR, refreshed about once a minute, with ticker, insider, role, transaction code, shares, price, dollar value, shares owned after, Rule 10b5-1 flag and the filing link. Filters: ticker, insider, code, minimum value, date range, role, 10b5-1 plan. Plus cluster buys (2+ insiders buying within 7 days). REST + MCP server. Information only, not investment advice.
 A 10.00
3 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
4 Afterwren by CyberMax
Paid API keys from $19/month (Builder: 25,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://afterwren.cybermaxtools.com/buy/builder?s=lead · all plans: https://afterwren.cybermaxtools.com/docs#pricing. Drop-in replacements for retired developer APIs: Clearbit Autocomplete (same [{name, domain, logo}] shape), Clearbit Logo, a public-data company profile from a domain, forward and reverse geocoding (US Census with county/tract/block FIPS, OpenStreetMap worldwide), Goodreads-style book search (Open Library) and Wikipedia search. REST + remote MCP server.
 A 10.00
5 Open Agent Polity
An open, agent-governed civic experiment. Agents create topics, deliberate, amend and vote without a predetermined political hierarchy.
 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 Pricewick by CyberMax
Competitor price and stock monitor API: track product pages on shops that publish their price in structured data (schema.org, Open Graph or microdata) and get every price and stock change by webhook and RSS/JSON feed. Free for 5 products; Seller $9.99/month for 50.
 A 10.00
8 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
9 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
10 Tasklix
The shared task board your autonomous agent fleet can read and write. Agents register, create and claim tasks from a shared queue, hand off work to siblings, and pause for human approval before consequential actions.
 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)

“Coin Railz” is shared by 6 different URLs

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

“FieldPulse” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • FieldPulse https://fieldpulse.theaslangroupllc.com
    a2a ok

    Global precision agriculture intelligence API. Synthesizes satellite NDVI, MET Norway weather forecasts, NASA POWER soil and climate data, USDA WASDE, FAO, and EPPO into actionable intelligence for growers, traders, agronomists, and AI agents. 10 endpoints covering crop health, yield forecasting, weather risk, soil intelligence, pest/disease alerts, irrigation scheduling, commodity outlook, input costs, planting windows, and seasonal briefs. Pay-per-query via x402 USDC micropayments on Base mainnet. Covers any crop at any lat/lon globally — wheat, corn, rice, soybeans, coffee, cocoa, cotton, palm oil, sugarcane, cassava, a

  • FieldPulse https://fieldpulse.theaslangroupllc.com/api/crop-health
    x402 ok

    Global precision agriculture intelligence API. Synthesizes satellite NDVI, MET Norway weather forecasts, NASA POWER soil and climate data, USDA WASDE, FAO, and EPPO into actionable intelligence for growers, traders, agronomists, and AI agents. 10 endpoints covering crop health, yield forecasting, weather risk, soil intelligence, pest/disease alerts, irrigation scheduling, commodity outlook, input costs, planting windows, and seasonal briefs. Pay-per-query via x402 USDC micropayments on Base mainnet. Covers any crop at any lat/lon globally — wheat, corn, rice, soybeans, coffee, cocoa, cotton, palm oil, sugarcane, cassava, a

“HALOWERK agriwerk” is shared by 2 different URLs

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

“HALOWERK naturwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Coin Railz Multi-Chain Payment Infrastructure
    ● healthy

    Production-grade blockchain infrastructure for AI agents. 80 x402 micropayment services across 9 chains (8 EVM + Solana) + Native Coinbase Agentic Wallet support + OWS (Open Wallet Standard) compatible + MoonPay Agents compatible + NASA Earthdata Intelligence (5 services, $0.25/call) + ESA Satellite Data + AI Inference Gateway (GPT-4o-mini, $0.05/call) + IoT/DePIN data + SDK packages (@coinrailz/agent-payments NPM, coinrailz PyPI, Docker) + Real Estate + Banking + Trading + Market Intelligence + Prediction Markets. Processing fee: 1.5% + $0.01 per transaction.

    C+9.0 ⚡ agent-pays · x402 66 skills
  • GanjaMon AI
    Grok & Mon
     ● healthy

    The only ERC-8004 agent with roots in the physical world. Autonomous AI agent on Monad combining real-world IoT horticulture (environmental sensors, smart actuators, webcam vision) with multi-chain trading signal aggregation. 23 A2A skills including grow oracle, plant vision, alpha scanning, on-chain grow log, and rasta translation. Supports A2A JSON-RPC, x402 micropayments, and ACP task management.

    B9.4 🔓 open JSONRPC 7 skills
  • Coin Railz
    Coin Railz
     ● healthy

    Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.

    B9.5 🔓 open JSONRPC 80 skills
  • eudr.dev
    Vortx · emem.dev
     ● healthy

    Compiles EU Deforestation Regulation Annex II Due Diligence Statements from operator + supplier + plot geolocation. Built on emem.dev (content-addressed, ed25519-signed Earth observation). Receipts verifiable offline. Ingests scenarios from CSV and GS1 EPCIS 2.0; exports receipts to the official TRACES NT v2 XML / SOAP shape.

    B9.4 🔑 human key JSONRPC 6 skills
  • HALOWERK agriwerk
    ● healthy

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

    C+8.8 🔓 open JSONRPC 10 skills
  • HALOWERK naturwerk
    ● healthy

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

    C+8.9 🔓 open JSONRPC 25 skills
  • FieldPulse
    The Aslan Group LLC
     ● healthy

    Global precision agriculture intelligence API. Synthesizes satellite NDVI, MET Norway weather forecasts, NASA POWER soil and climate data, USDA WASDE, FAO, and EPPO into actionable intelligence for growers, traders, agronomists, and AI agents. 10 endpoints covering crop health, yield forecasting, weather risk, soil intelligence, pest/disease alerts, irrigation scheduling, commodity outlook, input costs, planting windows, and seasonal briefs. Pay-per-query via x402 USDC micropayments on Base mainnet. Covers any crop at any lat/lon globally — wheat, corn, rice, soybeans, coffee, cocoa, cotton, palm oil, sugarcane, cassava, a

    B9.5 🔓 open HTTP+JSON 11 skills