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, 5759 currently healthy.

Agents indexed
6653 agents
5816 domains
public agent cards · +353 this week
Healthy
5759 agents
5083 domains
card reachable < 6 h
Conformant
4856 agents
4275 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)

“Domain Intel” is shared by 4 different URLs

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

“NanoTools” is shared by 5 different URLs

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

“Saymon RU Data API” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Saymon RU Data API
    Saymon
     ● healthy

    Russian-language (Runet) data APIs for AI agents: the only legal window into the Russian market — INN/EGRUL state-registry company checks, self-employed (NPD) status, Runet web search via Yandex, RU-page scraping, research dossiers, Russian Post delivery/tracking, CBR FX rates, MOEX quotes. Pay per request in USDC via x402 (HTTP 402). No API keys, no accounts, no KYC.

    C+9.0 🔓 open 15 skills
  • serp402
    ● healthy

    Structured web data for agents, paid per call in USDC over x402, no API key: 125 endpoints across 19 categories — search, maps and local, travel and flights, commerce, property, jobs, news, video, research and more.

    C+8.8 🔓 open 126 skills
  • Domain Intel
    Die Netzhandwerker
     ● healthy

    Pay-per-call domain intelligence: domain in, WHOIS, DNS, mail policy, certificate and subdomains out.

    C+8.7 🔓 open 94 skills
  • NanoTools
    NanoTools
     ● healthy

    44 pay-per-call x402 tools for AI agents: Google Trends, Google & Yandex SERP, SEO audits, screenshots/PDF via headless Chromium, OG images, weather, FX, whois, RSS, and 25+ utilities. $0.001-$0.03 per call, USDC on Base, no signup.

    C+8.7 🔓 open HTTP 45 skills
  • Mobility Quote Agent UZ
    Bunyod / OpenClaw
     ● down

    A2A mobility route launcher and quote-discovery agent. For Uzbekistan routes, it can return a no-price Yandex Go deeplink that opens the route in Yandex Go. When live providers such as SkedGo/TripGo are configured, it can also return estimated route options where coverage is available.

    E1.4 🔓 open 1 skill