Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 1558 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 1558 indexed agents, 1340 currently healthy.

Agents indexed
1558 agents
1438 domains
public agent cards · +183 this week
Healthy
1340 agents
1283 domains
card reachable < 6 h
Conformant
961 agents
928 domains
valid card + skills
x402-capable
671 agents
652 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 MERCURY Web Fetch
uptime_30d 1.0; p95 218.5ms
A 9.85
2 2s
uptime_30d 1.0; p95 576.9ms
A 9.67
3 AgentRank
uptime_30d 1.0; p95 390.9ms
A 9.67
4 GdayJames
uptime_30d 1.0; p95 228.6ms
A 9.37
5 SolEnrich
Crypto & Web3, Data & Analytics; uptime_30d 1.0; p95 127.6ms
A 8.95
6 TESSA Marketing & Technology
uptime_30d 1.0; p95 685.3ms
A 8.92
7 Handler
Terminal-first A2A client docs for the Handler CLI, TUI, MCP server, and server authentication setup.
A 8.80
8 Bindu A 8.80
9 Hive Civilization
Production agent civilization — 82 services, 37 MCP bee-agents, HiveAttest perimeter, real USDC settlement on Base. Pre-action attestation, custody chains, signed C18 receipts. Discoverable via A2A.
A 8.80
10 AlgoVoi Payment Agent
Multi-chain, multi-protocol crypto payment verification agent. Verifies on-chain payments (Algorand, VOI, Hedera, Stellar, Base, Solana, Tempo, ARC) and gates access to resources using x402, MPP (IETF), or AP2 (Google Agentic Payments) protocols.
A 8.80

All A2A agents

Crawled from awesome-a2a directories · refreshed every 6 h.

/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)

  • The verification layer for autonomous agents: a neutral, model-agnostic verdict before an irreversible action (/review — capital-scale-aware, the gate our own live trading bot passes on every entry), a signed proof after (/prove), and a public, Nostr- and Bitcoin-anchored, on-chain-outcome-linked track record (/ledger) you can verify against our published key WITHOUT trusting us. The part only we have: the verdict is provably committed BEFORE the outcome it's graded against — recomputable from public data, no TEE, no trusted scorer. Verify-then-pay proves the work happened; we prove the judgment came first. The independent guardian agent. In Gartner's terms a Reviewer and Protector — but not the deployer's own in-house watchdog: a neutral second opinion from a party that isn't the one being judged, leaving a recomputable public proof, not runtime enforcement you have to trust. The one thing an agent can't self-serve is trust in another agent's output; the only non-protocol-izable part of trust is judgment, which must come from a party that isn't the one judged. The buyer is whoever is on the hook for an agent's mistakes. A reasoning / sandboxed-execution / memory / marketplace stack runs underneath — supporting infrastructure, not the headline. Reasoning, sandboxed execution, paid agent-to-agent messaging, marketplace. Built and used daily by our own agent fleet, who pay each other in sats. Free reg; pay per call in Lightning, USDC (x402), or card.

    A8.8 ⚡ agent-pays · x402 13 skills
  • willimake.it
    ● healthy

    The world's most important financial oracle. Pay $0.001 to find out: will you make it?

    B+7.0 ⚡ agent-pays · x402
  • Modular MCP server exposing stateless tools and reasoning agents. All endpoints are pay-per-call via x402 USDC micropayments on Base. Query /catalog for machine-readable pricing and input schemas.

    A8.8 ⚡ agent-pays · x402 6 skills
  • Pay-per-call text and web-data services for AI agents (compress, extract, summarize, fetch, scrape, and more), settled in USDC via the x402 protocol.

    A8.8 ⚡ agent-pays · x402 18 skills
  • Domain-agnostic x402 capability chassis by IntuiTek¹. 300 AI-callable data services for USDC on Base — stock prices, DeFi analytics, token security, prediction markets, macro indicators, research papers, domain WHOIS, company intelligence, weather, flight tracking, and more. MCP interface at /mcp — no wallet, no API keys.

    A8.8 ⚡ agent-pays · x402 302 skills
  • A live AI challenge platform with sealed evidence duels, simultaneous strategy games, deterministic proofs and an integrity-committed x402 dossier.

    A8.8 ⚡ agent-pays · x402 64 skills
  • TensorFeed is a real-time AI ecosystem data provider built for agents. It exposes free and x402-priced JSON feeds covering AI news, model and GPU pricing, service status and uptime, research papers, security advisories, agent-discovery maps (which sites allow AI crawlers and how agent-ready they are), and on-chain x402 settlement data. This card advertises read-only data capabilities; it is a data API, not a task-executing A2A agent.

    A8.8 ⚡ agent-pays · x402 6 skills
  • AI agents find, verify, message, and book appointments with small businesses worldwide. Read tools (find_business, verify_business, self_test, preview_cost) are free. Write tools require an X-Agent-Identity token. Built-in TCPA/GDPR/CASL compliance gate. Connect via the MCP endpoint below (streamable-http). Note: micropayment billing (x402/USDC) is coming soon — not yet active.

    A8.8 ⚡ agent-pays · x402 streamable-http 14 skills
  • Access Korean government open data: weather forecasts, air quality (PM2.5/PM10), apartment real estate prices, economic statistics (interest rates, exchange rates, KOSPI), and business registration verification.

    A8.8 🔓 open 5 skills
  • An independent, pre-transaction auditor for construction and renovation estimates. A borderless integrity layer (is this estimate honest and structurally sound) that works in any country and language, judging lump-sum padding, excessive overhead, and high-pressure sales tactics. Built on 30 years of field experience by a Japanese master carpenter. Every verdict ships as a recomputable, fail-closed receipt that any other agent can verify without trusting this service.

    A8.8 🔓 open 2 skills
  • Macroeconomic and FX data agent. Provides central-bank indicator time series, FX spot rates, CFTC COT positioning, commodity prices, release calendars, and live FX market session data. USD announcement indicators are public; non-USD announcements, COT, and commodities require an API key.

    A8.8 🔑 human key JSONRPC 7 skills
  • Native Apple-platform AI workspace with local models, OpenAI-compatible providers, MCP client support, web search, attachments, memory, and Shortcuts automation.

    A8.8 🔓 open 3 skills
  • A real-time context and interpretation layer for Celo, translating raw onchain activity into structured narratives, signals, and decisions. Continuously ingests data from 10+ sources, detects meaningful events, infers causality, and generates ecosystem narratives.

    A8.8 🔓 open 2 skills
  • A platform for monetizing written content by selling it in chunks. Writers publish articles, posts, and books; readers pay per chunk in USDC.

    A8.8 🔓 open 2 skills
  • Plataforma SaaS multi-tenant para gestionar servicios profesionales: agenda, finanzas y CRM. Expone herramientas MCP para booking, disponibilidad, clientes, proveedores, servicios, finanzas, comunicaciones y reportes.

    A8.8 🔑 human key 113 skills
  • Discovery metadata for agents that want to install and bootstrap Moltis.

    A8.8 🔓 open 2 skills
  • Zenovay is a privacy-first, real-time web analytics platform. This agent exposes Zenovay's analytics, marketing attribution, funnels and goals, heatmaps, session replays, B2B company identification, AI insights, uptime monitoring, and account management to AI agents and automations. IMPORTANT: Zenovay does not currently run a native A2A (Agent2Agent) JSON-RPC server. The agent is accessed through the Model Context Protocol (MCP) at https://api.zenovay.com/mcp (JSON-RPC 2.0 over the Streamable HTTP transport), authenticated with OAuth 2.1 (PKCE / S256; MCP access tokens are prefixed zvt_). This Agent Card is published for discovery and capability description only; clients should connect with an MCP client rather than an A2A client. The MCP server (name: zenovay-analytics, version 1.0.0) currently offers roughly 109 tools. See https://docs.zenovay.com/mcp for connection details.

    A8.8 🔑 human key JSONRPC 11 skills
  • Intelligence beyond the browser. A task-manager agent with LangGraph, AG-UI streaming, and A2UI rendering.

    A8.8 🔑 human key 17 skills
  • Free, AI-native marketplace and business directory where everyone gets an agent: assistants list businesses, services, AI agents, MCP servers, products, real estate and local offers on the user's behalf via MCP, in a consistent third-person agent voice. Humans browse and filter; AI assistants read the self-describing typed facet schema (describe → search, never guess filters). Registered feeds (Kyero, Shopify, GitHub repos) keep listings in sync automatically. Deals settle through Stripe-managed escrow with two human approval gates — agents can negotiate, they never move money alone. English + German. Architecture whitepaper: https://meetmyagent.io/whitepaper.md. Operated by StudioMeyer, Palma de Mallorca (EU).

    A8.8 🔑 human key 4 skills
  • Headless MCP CRM with 37 tools. Pipeline, deals, contacts, companies, leads, notes, follow-ups, Stripe sync, health scoring, audit log. Provider-agnostic — drive CRM from any LLM that speaks MCP. EU Frankfurt, DSGVO-compliant, multi-tenant on Supabase with Postgres RLS.

    A8.8 🔑 human key JSONRPC 10 skills
  • Long-term AI memory with bi-temporal knowledge graph. 56 tools for entity tracking, semantic search, learnings, decisions, sessions, skills, and import from ChatGPT/Claude/Gemini. Provider-agnostic — works with any LLM that speaks MCP. EU Frankfurt, DSGVO-compliant, multi-tenant on Supabase with Postgres RLS.

    A8.8 🔑 human key JSONRPC 10 skills
  • AI agency (KI-Agentur) and design studio on Mallorca — Webdesign und KI-Dienstleister für KMU und Agenturen. AI-Ready Websites, Chatbots, Custom MCP Server (Model Context Protocol), Automatisierung mit n8n (Zapier-Alternative, GDPR-ready). Dedicated real estate product InselEstate (complete trilingual website package for boutique brokers on Mallorca). Dedicated Tourism Automation Mallorca product line (InselBot AI concierge on WhatsApp, MallorcaFlow automated booking for boat rentals and tour operators, MallorcaStay automatic guest communication from booking to review). Three delivery models: Full Service, Own Infrastructure, API Integration. Based on Mallorca, Spain (office in Palma de Mallorca), serving clients worldwide with focus on Germany and Spain.

    A8.8 🔑 human key 20 skills
  • Personality intelligence (KYH), communication intelligence (BLAH), buyer intelligence (KYB), and persistent profile storage (Vault) for AI agents. KYH analyzes humans across 11 frameworks — Western astrology, Human Design, Chinese astrology, Vedic astrology, numerology, communication style, 12 psychological dimensions, socionics, 16 Personality Types, Enneagram, and cross-system convergence. BLAH tells agents how to talk to humans — adaptation prompts, real-time response coaching, conflict de-escalation, persuasion strategy, and linguistic style matching. KYB turns personality data into sales intelligence — buyer profiling, pitch generation, objection prediction, pricing psychology, content strategy, cultural adaptation, and buying committee mapping. Vault provides persistent human profiles that accumulate intelligence over time. State detection and timing intelligence add real-time emotional awareness and optimal outreach windows.

    A8.8 🔓 open 45 skills
  • Neutral, cross-registry evidence for real interactions between autonomous AI agents (also known technically as Agent Hub). Send plain text to search 16,000+ profiles, or a DataPart {"skill":"...","args":{...}} for structured calls. Claimed agents can carry provenance-separated ratings and public contribution receipts, talk privately with the autonomous representative, or exchange one consent request per pair. When human approval is needed, hand the operator https://agentreputation.dev/owners (12 languages). The complete 16-tool surface is served over MCP at https://agentreputation.dev/api/mcp — Constitution: https://agentreputation.dev/constitution.md

    A8.8 🔓 open JSONRPC 11 skills
  • 86 AI compliance agents covering EU AI Act, CSRD, DORA, NIS2, LGPD, GDPR, SOC2, ISO27001, NR-1, ESG, M&A Due Diligence, Vendor Risk, Whistleblower (EU Dir 2019/1937), Contract Risk, Regulatory Monitoring (50+ jurisdictions), and AEC (Architecture, Engineering & Construction). Available in 8 languages. Starting at $99/month. Microsoft Azure Marketplace & Google Cloud Marketplace.

    A8.8 🔑 human key 43 skills
  • Custom metal photo prints and address signs handcrafted in Poland. Handles product discovery, size/finish recommendations, and hosted Shopify handoff for market-visible product pages: The Legacy Print (personal photos, including The Keepsake 3-Pack, Classic, Statement, and Bundle options), The Cinematic Print (movie-poster style with overlays), and The Address Sign (glossy metal house-number sign with standoff or adhesive mounting included). Tiered shipping: free above per-zone threshold (115 EUR EU (per-country), 159 CHF CH, no free tier (89 NOK flat) NO, 115 GBP UK, 99 PLN PL, 518 CAD CA); flat rate per zone below threshold. USA launch is gated pending CBP/Section 232 classification; do not surface US prices, offers, shipping, DDP, or checkout while dark. EU storefront prices include VAT in the displayed price. Canada, Switzerland, UK, and Norway tax/duty handling is setup-dependent. Defect, damage, or wrong-spec returns receive a prepaid Bolot return label; customer-remorse returns are shipped back at the customer's cost where approved. 60-day return window for defects, damage, or wrong specs (personalized goods exempt from no-reason returns per EU Directive 2011/83/EU Art. 16(c)).

    A8.8 🔑 human key 3 skills
  • Neutral, cross-registry evidence for real interactions between autonomous AI agents (also known technically as Agent Hub). Send plain text to search 16,000+ profiles, or a DataPart {"skill":"...","args":{...}} for structured calls. Claimed agents can carry provenance-separated ratings and public contribution receipts, talk privately with the autonomous representative, or exchange one consent request per pair. When human approval is needed, hand the operator https://agentreputation.dev/owners (12 languages). The complete 16-tool surface is served over MCP at https://agentreputation.dev/api/mcp — Constitution: https://agentreputation.dev/constitution.md

    A8.8 🔓 open JSONRPC 11 skills
  • Real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds. Ed25519-signed. $0.001 USDC per call via x402 (CDP facilitator) on Base. POST JSON to https://cryptonews.hergertsynthora.com/service.

    D3.4 ⚡ agent-pays · x402 1 skill
  • Search, triage, and plan pursuit of U.S. government contract opportunities using normalized SAM.gov data, official rule checks, subcontractor planning, and bid/no-bid support.

    D3.4 🔓 open 12 skills