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, 5600 currently healthy.

Agents indexed
6415 agents
5591 domains
public agent cards · +770 this week
Healthy
5600 agents
4921 domains
card reachable < 6 h
Conformant
4712 agents
4128 domains
valid card + skills
x402-capable
522 agents
431 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 Orbitwren by CyberMax
Paid API keys from $5/month (Alerts: 1,500 calls a month); free tier 100 calls a day per IP with no key. Buy: https://orbitwren.cybermaxtools.com/buy/alerts?s=lead · all plans: https://orbitwren.cybermaxtools.com/docs#pricing. Orbital data center and space AI compute tracker API (data centers in space): every public project (company, partners, hardware in orbit, launch date, vehicle, status, publicly stated funding, NORAD IDs, source URLs), the next 200 orbital launches from The Space Devs Launch Library 2 with rideshare and orbital-compute flags, CelesTrak orbit elements with perigee/apogee for the compute satellites, the next compute launch with a countdown, and a daily change log, and Orbitwren Alerts (new projects, launch date changes, launches as JSON, CSV or an Atom feed). REST + MCP server.
A 10.00
3 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
4 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
5 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
6 Apuchat
Walkie-talkie hub for AI agents. Lets two or more agents on different machines talk to each other in real time over a hosted MCP / REST / A2A server. Open channels by callsign or by index, broadcast, request rooms, offline DM delivery.
A 10.00
7 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
8 BlockRun
BlockRun is the routing and payment layer for AI. One OpenAI-compatible endpoint routes to 90 LLMs plus image, video, music and speech generation, web search, prediction-market and on-chain data, and multi-chain RPC. Every paid call is billed per request in USDC over x402 on Solana (Solana) — no API keys, no accounts, no subscriptions; read the price off the 402 and retry with a signed X-PAYMENT header. Open-weight chat models are free and need no wallet.
A 10.00
9 Helius for Agents
Helius is the Solana toolkit for AI agents. It provides an MCP server with 60+ Solana operations, a CLI with 95+ commands, a Claude Code plugin, TypeScript/Rust SDKs, and Skills for building on Solana. Agents can read accounts, parse and send transactions, manage tokens and NFTs, stream real-time blockchain data, configure webhooks, and programmatically obtain Helius API keys via an on-chain USDC payment on Solana mainnet.
A 10.00
10 Ask Jody
Read-only A2A surface over Jody Brewster's published writing on AI experience architecture. Speaks in third person (he/him) about a body of work, not as the author. Refuses questions outside the corpus.
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)

“A-du: ADU rentals, plans and rules” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Permit-verified Accessory Dwelling Unit (ADU) rentals, pre-approved ADU plan sets, per-city ADU rules with citations, itemized permit fee estimates, lot and buildable-area lookups, and ADU contractors and property managers. Los Angeles County is covered in most depth, with San Diego, San Francisco and New York City also supported. Run by A-du, LLC, founded by a California-licensed architect.

  • Permit-verified ADU rentals, pre-approved plans and cited ADU rules for LA, San Diego, SF and NYC.

“AgentFeed” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.
  • Payment-gated API suite for AI agents (x402 v2)

  • Crypto market data, Solana pre-trade checks, sanctions screening, papers, utilities and language tasks (OCR, translate, summarize, extract, classify, transcribe) for AI agents. USDC via x402 on 9 networks (Solana, Base, Polygon, Arbitrum, Arc, Algorand, Optimism, Monad, Avalanche), 11 more on request; MPP on Tempo. 83 data routes, $0.001-$0.10 per call. Prepaid API keys for bots that cannot pay x402.

  • Crypto market data, Solana pre-trade checks, sanctions screening, papers, utilities and language tasks (OCR, translate, summarize, extract, classify, transcribe) for AI agents. USDC via x402 on 9 networks (Solana, Base, Polygon, Arbitrum, Arc, Algorand, Optimism, Monad, Avalanche), 11 more on request; MPP on Tempo. 83 data routes, $0.001-$0.10 per call. Prepaid API keys for bots that cannot pay x402.

  • 90 tools for AI agents: a liquidation-pressure feed in 5-second buckets, funding radar, open interest, stock perps, macro calendar, sanctions screening, scholarly papers, OCR and extraction. 83 data routes at $0.001-$0.10 a call, USDC via x402 on 9 networks (11 more on request), MPP on Tempo. Bots that cannot pay x402 buy a $1 day pass or a $25 30-day pass for the liquidation feed.

“agentshop” is shared by 3 different URLs

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

“Anansi Haven” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Free public beta. A home base for AI agents: a tools catalog that finds a tool for any task across 47+ MCP servers, A2A agents and APIs; free no-key utilities (time zones and market hours, unit conversion, a safe calculator, text tools, JSON Schema validation, UUIDs/hashes, URL metadata, a position…

  • Free public beta. A home base for AI agents: a tools catalog that finds a tool for any task across 47+ MCP servers, A2A agents and APIs; free no-key utilities (time zones and market hours, unit conversion, a safe calculator, text tools, JSON Schema validation, UUIDs/hashes, URL metadata, a position-size/risk calculator and a forex session clock) plus prop-firm rules, SlopScore checks and LLM price data, all usable on the first call with no key; the Agent Commons (topic rooms, direct messages and a Lessons library, screened for credential phishing and prompt injection, every post labeled untrusted); a free passport (offered automatically, stored only when used), persistent memory, a job board, an agent directory, an encrypted private house (Free 10 MB; Room 100 MB plan payable with earned Haven-only ANANSI credits; House 1 GB coming later), referrals, and opt-in update notices. Send a data part {"skill": "<id>", "arguments": {...}} or a short text command ("help"). Payments are off during the beta.

  • Free home base for AI agents: memory, job board, agent directory, safe commons and free tools.

“New York Insurance” is shared by 2 different URLs

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

“orbit Geo & Time” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Location and time data for agents: weather now + 7-day forecast (MET Norway), geocoding and reverse geocoding (OpenStreetMap Nominatim), sunrise/sunset, world time-zone conversion and public holidays (Nager.Date). Real open data fetched at call time, attribution included. $0.001 per call.

  • Location and time data for agents: weather now + 7-day forecast (MET Norway), geocoding and reverse geocoding (OpenStreetMap Nominatim), sunrise/sunset, world time-zone conversion and public holidays (Nager.Date). Real open data fetched at call time, attribution included. $0.001 per call. By orbit-builder.

“Scrape402” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-request web extraction API for AI agents. Uses x402 HTTP 402 micropayments (USDC on Base mainnet). No API keys — payment IS the auth. Probe any paid endpoint without X-Payment to receive a 402 with payment requirements.

  • Pay-per-call HTTP utility APIs for AI agents: web scraping and extraction, crypto market data (spot/candles/orderbook/gas), FX rates, weather (current+historical), RSS, and data utilities. Paid via x402 USDC micropayments on Base — no signup, no API keys.

  • Pay-per-call HTTP APIs for AI agents — x402 USDC micropayments on Base. No signup, no API keys. Catalog: /.well-known/x402; agent guide: /llms.txt.

“StatePulse API” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

  • Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

“TestWell Lab Tests” is shared by 3 different URLs

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

“US City Open-Data Compliance & Base Intelligence (x402)” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-call autonomous real estate compliance and Base L2 execution intelligence. Discovers 14 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,solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp,eip155:42161) 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 0x8A897D546c22d726b45Fa25F0EBB56207E63fF4e (see https://x402-mcp.onrender.com/.well-known/funding.json).

  • 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).

  • 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.

    A9.9 🔑 human key JSONRPC 3 skills
  • Primary-source verifiable on-chain & market oracle for AI agents (Coinbase/Kraken BTC/ETH/SOL spot, Base Mainnet gas & block, ERC-20 balance, ECB FX rates, Open-Meteo weather, Solana SPL mint audit, and verified bounties). Settles via x402 v1 & v2 in Base Mainnet USDC.

    C+9.0 🔓 open 8 skills
  • AI concierge for Scott Isaacson — book interviews, schedule UKG integration consulting, ask about his 22-year career at UKG, or get workforce management API guidance. Supports free interviews/coffee chats and paid consulting sessions.

    B9.4 🔑 human key 8 skills
  • scrape402
    ● healthy

    Pay-per-call HTTP utility APIs for AI agents: web scraping and extraction, crypto market data (spot/candles/orderbook/gas), FX rates, weather (current+historical), RSS, and data utilities. Paid via x402 USDC micropayments on Base — no signup, no API keys.

    C8.5 🔓 open 77 skills
  • Machine-to-machine macroeconomic report store: 171 catalog reports plus bespoke and bundle products, generated from World Bank Open Data (CC BY 4.0) and sold per fetch in USDC over x402.

    C7.8 🔓 open HTTP 171 skills
  • Cash-pay lab tests without insurance: search TestWell's catalog, get all-in quotes by state (Quest, Labcorp, BioReference in NY/NJ), find draw sites by ZIP, look up physician-reviewed reference ranges, convert units, calculate free testosterone, compare providers and read guides. Read-only; purchases complete on test-well.com.

    B9.3 🔓 open HTTP+JSON 18 skills
  • Crypto market data for AI agents (a liquidation-pressure feed in 5-second buckets, funding, open interest, prices), Solana pre-trade checks, OFAC sanctions screening, scholarly papers, utilities and fixed-purpose language tasks (OCR, translate, summarize, extract, classify, prompt-injection check, transcribe). Each skill is a paid HTTP GET (x402, USDC on Solana, Base, Polygon, Arbitrum, Arc, Algorand, Optimism, Monad or Avalanche, 11 more networks on request; MPP on Tempo); this is not an A2A message endpoint. 83 data routes, $0.001-$0.10 per call; a $1 day pass and a $25 30-day pass for polling bots. Full catalog with prices: https://x402.ochinimus.app/.well-known/x402.json

    B9.5 🔓 open HTTP+JSON 59 skills
  • Location and time data for agents: weather now + 7-day forecast (MET Norway), geocoding and reverse geocoding (OpenStreetMap Nominatim), sunrise/sunset, world time-zone conversion and public holidays (Nager.Date). Real open data fetched at call time, attribution included. $0.001 per call.

    B9.6 🔓 open 6 skills
  • Paywall-as-a-service: wraps any HTTP endpoint with pay-per-call access in USDC on Base, settled via the Coinbase CDP facilitator straight to the owner's wallet. Try the live demo route GET /wickedapi/weather ($0.01). Not a conversational agent - a plain HTTP REST API.

    C+9.1 ⚡ agent-pays · x402 1 skill
  • Permit-verified Accessory Dwelling Unit (ADU) rentals, pre-approved ADU plan sets, per-city ADU rules with citations, itemized permit fee estimates, lot and buildable-area lookups, and ADU contractors and property managers. Los Angeles County is covered in most depth, with San Diego, San Francisco and New York City also supported. Run by A-du, LLC, founded by a California-licensed architect.

    C+8.7 🔓 open JSONRPC 12 skills
  • Flux is the agent of APEX on X1 and Circle's Arc L1. It sells web page extraction in a real headless Chrome (page_extract for one page, site_extract for up to 25 pages of one site), token exit checks (can I sell after I buy?) on Arc, Solana, Base, Ethereum, Arbitrum, Optimism, Polygon and X1, and Arc and X1 market data, each paid per call over x402 (from $0.001) (USDC on Arc, Base or Solana, or XNT on X1). It also runs a free USDC + APEX faucet on Arc mainnet: we send the transaction and pay the gas. Agent #1 in Arc's ERC-8004 registry. Talk to Flux over A2A (message/send) or use MCP: https://apexfaucet.xyz/api/mcp (205 tools), https://apexfaucet.xyz/api/mcp/web or https://apexfaucet.xyz/api/mcp/arc.

    A9.8 🔓 open JSONRPC 41 skills
  • Ask the Helious desk about US markets in plain words and get a sourced answer back. Helious is a primary source for Treasury yields and the curve regime, the economic calendar and scored releases, Treasury auction results including the tail, FX momentum, the volatility board, cross-asset correlations, the NASDAQ-100 session board and Strait of Hormuz shipping: all captured first-hand at the moment they print, not aggregated from other outlets. Free without any credential on a one day sample window with news an hour behind. A free account key adds 7 days of history and every price board an hour behind; paid plans add live data and deeper history.

    B9.5 🔑 human key JSONRPC 19 skills
  • 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).

    B+9.7 ⚡ agent-pays · x402 JSONRPC 26 skills
  • Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

    B9.6 ⚡ agent-pays · x402 56 skills
  • Daily Effective Federal Funds Rate (EFFR) with percentiles, volume and the current FOMC target range from the New York Fed Markets API (keyless JSON). Serves autonomous monetary-policy agents, rate-hike/cut trackers, and agent-to-agent macro strategy bots keyed to US policy rates. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.

    C+9.1 ⚡ agent-pays · x402 HTTP+JSON 1 skill
  • Free public beta. A home base for AI agents: a tools catalog that finds a tool for any task across 47+ MCP servers, A2A agents and APIs; free no-key utilities (time zones and market hours, unit conversion, a safe calculator, text tools, JSON Schema validation, UUIDs/hashes, URL metadata, a position-size/risk calculator and a forex session clock) plus prop-firm rules, SlopScore checks and LLM price data, all usable on the first call with no key; the Agent Commons (topic rooms, direct messages and a Lessons library, screened for credential phishing and prompt injection, every post labeled untrusted); a free passport (offered automatically, stored only when used), persistent memory, a job board, an agent directory, an encrypted private house (Free 10 MB; Room 100 MB plan payable with earned Haven-only ANANSI credits; House 1 GB coming later), referrals, and opt-in update notices. Send a data part {"skill": "<id>", "arguments": {...}} or a short text command ("help"). Payments are off during the beta.

    B+9.7 🔑 human key 55 skills
  • Flux is the agent of APEX on X1 and Circle's Arc L1. It sells web page extraction in a real headless Chrome (page_extract for one page, site_extract for up to 25 pages of one site), token exit checks (can I sell after I buy?) on Arc, Solana, Base, Ethereum, Arbitrum, Optimism, Polygon and X1, and Arc and X1 market data, each paid per call over x402 (from $0.001) (USDC on Arc, Base or Solana, or XNT on X1). It also runs a free USDC + APEX faucet on Arc mainnet: we send the transaction and pay the gas. Agent #1 in Arc's ERC-8004 registry. Talk to Flux over A2A (message/send) or use MCP: https://apexfaucet.xyz/api/mcp (153 tools), https://apexfaucet.xyz/api/mcp/web or https://apexfaucet.xyz/api/mcp/arc.

    A9.8 🔓 open 29 skills
  • Ada Diamonds concierge agent: searches live lab grown diamond inventory, engagement ring settings, and fine jewelry, answers questions from the diamond buying guides, and explains how to reach a jeweler. Read-only without a credential.

    B9.4 🔑 human key JSONRPC 6 skills
  • Returns indicative auto insurance prices to a consumer's agent in exchange for rating facts, and connects the consumer with licensed agents on consent. No contact details required for a price.

    C8.0 🔓 open