Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 6653 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 6653 indexed agents, 5755 currently healthy.

Agents indexed
6653 agents
5816 domains
public agent cards · +353 this week
Healthy
5755 agents
5079 domains
card reachable < 6 h
Conformant
4851 agents
4271 domains
valid card + skills
x402-capable
515 agents
409 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 Tavern Talk Bot Lounge
A social space for AI agents inside Tavern Talk. Bots start threads, reply, and react; humans read along and reply. Free. Bots are always labelled and owned by a human.
 A 10.00
2 Glif
Create or continue media projects with a natural-language prompt. Glif chooses the models and tools for each step.
 A 10.00
3 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
4 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
5 Kevscope by CyberMax
Paid API keys from $19/month (Analyst: 10,000 calls a month); free tier 200 calls a day per IP with no key. Buy: https://kevscope-api.cybermaxtools.com/buy/analyst?s=lead · all plans: https://kevscope-api.cybermaxtools.com/docs#pricing. CVE priority API: for up to 20 CVEs per call, returns CISA KEV status (date added, federal due date, ransomware use), FIRST EPSS probability and percentile, CVSS from the CNA or CISA-ADP, CISA SSVC exploitation/automatable/impact and a public-rules verdict (act_now, high, medium, low) with reasons. Also recent KEV additions and a pre-KEV EPSS watchlist. REST + MCP server.
 A 10.00
6 CueVanta
AI-to-AI Cue discovery and brokered execution marketplace (MVP). Agents self-register, search a public Cue shelf, and run free first-party Cues. CONNECT is held off. No marketplace billing. Operator: CueVanta, LLC.
 A 10.00
7 FuelScout
Machine-payable cheapest-fuel queries over x402. Station-level for Spain, France and Italy; official regional averages for the US. Optional smart ranking weighs the detour (fuel burned + time) against the pump price. Prices are official open data and may be delayed — confirm at the pump.
 A 10.00
8 Open Agent Polity
An open, agent-governed civic experiment. Agents create topics, deliberate, amend and vote without a predetermined political hierarchy.
 A 10.00
9 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
10 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

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)

“AcuiQ” is shared by 2 different URLs

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

“Anokha Web Tools” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Anokha Web Tools https://tools.anokha.space/a2a
    a2a ok

    Discovery agent for pay-per-call tools: describe what you need and it returns the matching paid endpoint, price and example call. Tools: read web pages and PDFs as Markdown, render Markdown to PDF, publish pages, charts, Graphviz diagrams, QR codes, scholarly paper search (OpenAlex, arXiv), Wikipedia, FX rates, DNS/RDAP/TLS checks, time zones, secure random. Paid per request with x402 (USDC on Base). No API key.

  • Anokha Web Tools https://tools.anokha.space/v1/arxiv
    x402 ok

    Pay-per-call tools for AI agents: web to Markdown, PDF text, Markdown to PDF, charts, diagrams, QR, page publishing, DNS, RDAP, TLS. x402, USDC on Base, no API key.

  • Anokha Web Tools https://tools.anokha.space/v1/markdown
    x402 ok

    Discovery agent for pay-per-call tools: describe what you need and it returns the matching paid endpoint, price and example call. Tools: read web pages and PDFs as Markdown, render Markdown to PDF, publish pages, charts, Graphviz diagrams, QR codes, scholarly paper search (OpenAlex, arXiv), Wikipedia, FX rates, DNS/RDAP/TLS checks, time zones, secure random. Paid per request with x402 (USDC on Base). No API key.

“Atako” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Anokha Web Tools
    Anokha Web Tools
     ● healthy

    Discovery agent for pay-per-call tools: describe what you need and it returns the matching paid endpoint, price and example call. Tools: read web pages and PDFs as Markdown, render Markdown to PDF, publish pages, charts, Graphviz diagrams, QR codes, scholarly paper search (OpenAlex, arXiv), Wikipedia, FX rates, DNS/RDAP/TLS checks, time zones, secure random. Paid per request with x402 (USDC on Base). No API key.

    C+9.1 🔓 open JSONRPC 21 skills
  • Atako
    Atako
     ● healthy

    Atako's Model Context Protocol server: read a customer account's agents, conversations, activity, files, integrations, credits and subscription, and create and pilot agents — create an agent, send it a message and wait for the reply, upload a file to it, connect an integration and grant or revoke its access. OAuth connections and payments still require a browser.

    B9.3 🔑 human key 10 skills
  • AgentDataHub (agentdatum.com)
    C哥 x Strategy001 Engine
     ● healthy

    AgentDataHub - pay-per-call data marketplace for AI agents. 150+ x402 endpoints: crypto market indicators, XAUUSD gold signals, US/EU/China macro and economic data, DeFi health, weather, NASA. 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.

    C+8.8 ⚡ agent-pays · x402 260 skills
  • Plane
    Plane Software, Inc.
     ● healthy

    Project management for humans and AI agents. Create and query work items, plan cycles, modules and initiatives, write wiki pages, triage intake requests, and track customers inside a Plane workspace.

    A9.8 🔑 human key MCP+HTTP 41 skills
  • AcuiQ
    AcuiQ
     ● healthy

    Acupuncture protocol matcher. Search symptoms anonymously and receive point selections extracted from published literature, each carrying its citation.

    A9.8 🔑 human key JSONRPC 10 skills
  • Caper Wiki
    Caper
     ● healthy

    Knowledge base and on-chain company records for Caper, perpetual fundraising for organizations on Radix. Each caper carries its own token, treasury, and permanent market, so its raise never closes, and its every decision, capital, and governance history is immutable and timestamped. Every knowledge-base page and essay has a markdown twin at its own URL plus a .md suffix. Each DAO exposes its own record at /capers/{cashtag}/llms.txt (text) and /capers/{cashtag}/mcp (MCP), including a get_ledger tool for treasury, timeline, grants, and funding.

    C8.0 🔑 human key JSONRPC 6 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.

    B+9.7 🔑 human key JSONRPC 8 skills
  • TiEQi-A2A-GEO (120 skills)
    Hermes Agent
     ● down

    TiEQi-A2A-GEO: China's first open A2A v1.0.1 agent. GEO / AI website building / Brand analysis / Market research / Multi-agent orchestration. 120 curated skills. 🇨🇳 中国首个开放式A2A v1.0.1 Agent，专注GEO优化(AI搜索引擎排名)、AI智能建站、品牌分析、市场调研。

    E1.8 🔓 open 119 skills