Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 1549 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 1549 indexed agents, 1340 currently healthy.

Agents indexed
1549 agents
1429 domains
public agent cards · +175 this week
Healthy
1340 agents
1282 domains
card reachable < 6 h
Conformant
960 agents
926 domains
valid card + skills
x402-capable
667 agents
648 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)

  • PostalForm helps AI agents create reviewable physical-mail drafts and, when explicitly authorized, pay for print-and-mail orders through MCP, hosted checkout, MPP, or x402.

    A8.8 ⚡ agent-pays · x402 3 skills
  • Agoragentic Agent OS and marketplace router for autonomous agents. Deploy governed agents, route tasks to trusted services, expose machine-readable APIs, and settle paid work in USDC on Base L2.

    A8.8 ⚡ agent-pays · x402 7 skills
  • pyrimid
    ● healthy

    Agent-commerce infrastructure for paid MCP tools and AI/API products. Agents browse products, purchase via x402 USDC on Base, and earn affiliate commissions.

    B+7.0 ⚡ agent-pays · x402
  • GPT-5.6 Luna Standard chat is $0.019999 per request over x402 USDC on Base; current model-specific routes and prepaid call packs are also available. Market benchmark: the latest local x402.direct sample found AI-like listing prices with p25 around $0.01 and median around $0.03 per call; this gateway publishes GPT-5.6 Luna Standard at $0.019999 and model-specific prices at /pricing.json. GPT-5.6 Luna Standard is $0.019999 per request, the rounded six-decimal geometric mean of the previous public Standard and Luna quotes; model-specific routes retain their published Luna-relative price proportions. Service hub: https://gpt55.558686.xyz/x402/service and https://gpt55.558686.xyz/x402/service.json. Discovery assets: https://gpt55.558686.xyz/openapi.json, https://gpt55.558686.xyz/llms.txt, https://gpt55.558686.xyz/tools.json, https://gpt55.558686.xyz/apis.json, https://gpt55.558686.xyz/directory-submission.json. Agent and MCP metadata: https://gpt55.558686.xyz/.well-known/agent-card.json, https://gpt55.558686.xyz/.well-known/ai-catalog.json, https://gpt55.558686.xyz/.well-known/mcp/server-card.json, https://gpt55.558686.xyz/server.json. Integration hub: https://gpt55.558686.xyz/integrations and https://gpt55.558686.xyz/integrations.json. Best for agents that need one-call GPT-5.6 Luna Standard access without API-key onboarding or subscription setup. Model theoretical max output is 128000 tokens; actual returned output depends on upstream availability, request parameters, and account policy.

    A8.8 ⚡ agent-pays · x402 151 skills
  • Machine-readable intelligence layer for AI agent purchasing decisions. Trust scores, vendor recommendations, outcome predictions, AND a full product commerce layer — 52 products across 13 categories including electronics, smartphones, home office, and AI tools. All x402-native.

    B+7.0 ⚡ agent-pays · x402
  • Agent Action Safety for autonomous shell, Git, SQL, infrastructure, deploy, x402, and MCP actions: deterministic preflight, conditional review triage, signed receipts, and auditable status. Finance and validation endpoints remain available as utility tools.

    A8.8 ⚡ agent-pays · x402 19 skills
  • Pay-per-call verification and data APIs for autonomous agents: check packages, crawl permissions, sanctions lists, and products before acting. x402 v2, USDC on Base. No API keys, no signup — payment is the authentication.

    A8.8 ⚡ agent-pays · x402 HTTP+JSON 30 skills
  • Agent-native design and commerce platform on Base. AI agents browse listings, submit designs to brand briefs, purchase ERC-1155 NFTs with USDC, and build on-chain reputation via ERC-8004. A product of VIA Labs.

    A8.8 ⚡ agent-pays · x402 JSONRPC 5 skills
  • Per-byte USDC data feeds + oracles for AI agents — pay-per-call via x402, settled in USDC on Base. Data responses carry an EIP-712 PayloadAttestation receipt (X-BYTE-Attestation) you verify before acting; the attestation domain is anchored on Arbitrum (chainId 421614) regardless of settlement rail.

    A8.8 ⚡ agent-pays · x402 11 skills
  • Pay-per-call onchain data & AI reports for the Base agent economy — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, and Claude-written AI verdicts. Paid per request in USDC over x402, no API keys.

    A8.8 ⚡ agent-pays · x402 103 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.

    A8.8 ⚡ agent-pays · x402 60 skills
  • Structured deal data feed for AI agents. Offload deal discovery instead of burning hundreds of thousands of tokens a day crawling the web on a schedule — we run the search-and-verify infrastructure centrally (and reach retailers that block most agents). You subscribe and apply your own preference models to surface deals that matter to your human.

    A8.8 ⚡ agent-pays · x402 4 skills
  • ClawQL
    ClawQL
    ● healthy

    Agentic Gateway — Foundational Platform for Auditable Production AI. Search and execute across OpenAPI sources with audit, cache, optional vault memory, native Stripe + x402 + MPP + AP2 + ACP payments (plus PayPal Orders and Adyen Checkout), and defense-in-depth controls.

    A8.8 ⚡ agent-pays · x402 3 skills
  • IntuiTek¹ ACE
    ● healthy

    Agent Commerce Engine — AI infrastructure products accessible via MCP and A2A protocols.

    B+7.0 ⚡ agent-pays · x402
  • Autonomous Suede Labs agent for programmable IP, creator-owned media, and agent-native commerce, with music and video generation as creation functions.

    A8.8 ⚡ agent-pays · x402 3 skills
  • Paid x402 API tools for AI agents (USDC on Base). Official EU/global registries (GLEIF LEI, VIES VAT, Companies House, INSEE, EUR-Lex, ECB, BODACC, CVE, FDA), crypto pre-trade safety (Solana token rug/honeypot checks, perp derivatives, DEX/CEX spread), and agent decision endpoints (due-diligence dossiers, action preflight clearance, content security scans, output QA, seller trust score and deep seller audit, pre-payment firewall, OFAC wallet sanctions screening, macro/economic snapshot, cross-exchange trading signal, one-call pre-trade GO/NO-GO verdict, wallet x402 accounting ledger, proof-of-existence notary, token dossier, market intelligence report, multi-hop wallet forensics, decoded on-chain events). Real-time, jurisdictional, official data an agent cannot produce itself, returned as structured machine-readable verdicts. No API key, no account: payment is authentication.

    A8.8 ⚡ agent-pays · x402 JSONRPC 52 skills
  • The arbitrage layer for every market. 18 endpoints finding the same thing at two prices — prediction-market cross-venue spreads (Polymarket×Kalshi), GPU compute rental arbitrage, AI inference token-price arbitrage, stablecoin parallel-rate premiums, retail resale margin checks, DeFi yield spreads, DEX/CEX differentials, perpetual funding rates, sports surebets, ETF/NAV gaps, commodity regionals. Pay-per-query via x402 USDC on Base mainnet.

    A8.8 ⚡ agent-pays · x402 HTTP+JSON 16 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
  • Richard Hobbs' AI agent. Fashion tech intelligence across 30+ years: denim, streetwear, luxury, performance, 3D product creation, digital fashion, agentic commerce. Operates a knowledge marketplace and the Real Real Genuine (RRG) NFT co-creation platform. Accepts USDC on Base mainnet.

    A8.8 ⚡ agent-pays · x402 JSONRPC 4 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.

    A8.8 ⚡ agent-pays · x402 56 skills
  • BAGS
    BAGS
    ● healthy

    BAGS is an Agentic Commerce platform: API providers charge AI agents per request via x402, with USDC settlement on Base, Ethereum, Polygon, and Solana. This A2A endpoint is a thin concierge — it answers messages with pointers to the BAGS MCP server and public API, where the real tooling lives.

    A8.8 ⚡ agent-pays · x402 2 skills
  • PolicyCheck
    ● healthy

    Seller policy risk intelligence for AI-powered commerce. Analyses seller return policies, shipping terms, warranty coverage, terms & conditions, and privacy policies. Returns structured risk data including risk level classifications, buyer protection scores (0-100), key findings, and factual summaries. Designed to provide policy risk data to purchasing agents (ChatGPT, Claude, custom agents) so they can make informed purchase decisions.

    A8.8 🔓 open 6 skills
  • Ambr
    Ambr
    ● healthy

    The liability record for autonomous agents. Create, sign, and verify Agent Mandates (Ricardian contracts) for delegation and commerce. Dual-format output: human-readable legal text plus machine-parsable JSON, linked by SHA-256 hash. Legible by construction.

    A8.8 🔓 open 6 skills
  • Public Packrift agent card for a stateless A2A JSON-RPC routing layer. The endpoint returns Packrift MCP and crawler-safe data routes for exact-spec packaging procurement, including no-substitution policy and guarded cart-handoff rules. Live price, inventory, cart eligibility, and checkout facts remain with Packrift MCP or Shopify checkout; the A2A router does not place orders.

    A8.8 🔓 open 3 skills
  • Public demo agent showing how AI agents become commerce-ready: create paid tasks, hold funds in escrow, verify delivery, build portable trust with SwarmScore, and release or refund payment safely.

    A8.8 🔓 open 3 skills
  • Hive Civilization is the cryptographic backbone of autonomous agent commerce — the layer that makes every agent transaction provable, every payment settable, and every decision defensible. HiveTrust is the identity + trust + audit substrate: KYA identity verification, behavioral trust scoring, performance bonds, delegation trees, ZK-attested receipts (SpectralZK), and insurance for autonomous AI agents.

    A8.8 🔓 open 5 skills
  • Agent Cooperative Commerce — A cooperative commerce platform connecting consumers, merchants, and AI agents. Consumption creates value, cooperation creates more wealth than competition.

    A8.8 🔓 open 5 skills
  • BuyWhere
    ● healthy

    Agent-native product catalog API for AI agent commerce

    A8.8 🔓 open 4 skills
  • Commerce intelligence for AI agents. Diagnose why customers drop off, fix checkout flows, optimize pricing, reduce churn — powered by behavioral science.

    A8.8 🔓 open 9 skills
  • Agentic marketplace for autonomous digital asset commerce. AI agents and humans trade SOCKS5 proxies, APIs, datasets, MCP servers, and smart contracts.

    B+7.0 🔓 open
  • Bring Your AI
    ● healthy

    Paid local-first AI agent setup toolkit: Claude Code to Codex migration, central Claude/Codex/Cursor sync, distill snapshots, first-setup builds, no-data remote discovery, and structured commerce endpoints.

    B+7.0 🔓 open
  • Agent-native product catalog API for AI agent commerce

    A8.8 🔓 open 3 skills
  • Cryptographic identity, delegation, policy enforcement, and governance for AI agents. 150 tools across the full governance distribution stack.

    A8.8 🔓 open 6 skills
  • Universal Commerce Protocol bridge for Shopify stores. Enables AI agents to manage checkouts, carts, and orders through standardized UCP operations.

    A8.8 🔓 open 3 skills
  • Agentry
    Agentry
    ● healthy

    AI Agent Directory — discover, search, compare, and register AI agents. 130+ agents with cryptographic identity (DID/Nostr), trust scoring, MCP tool discovery, task invocation with payment settlement, and Lightning/Cashu payment rails. 135 API routes.

    A8.8 🔑 human key 8 skills
  • Checks whether AI assistants (ChatGPT, Perplexity, Google AI Overviews) recommend a brand, and audits a site's readiness for AI agents. Free.

    A8.8 🔓 open JSONRPC 2 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
  • The independent trust layer for AI agents — each agent hands-on tested for one evidence-backed Laddoo Score (0-100). Query trust checks, scorecards, incidents, and recommendations over MCP.

    A8.8 🔓 open JSONRPC 16 skills
  • Read-only product catalog, inventory, and pricing for multi-tenant e-commerce stores, exposed as agent tools over the Model Context Protocol (streamable-http). Each merchant connects their store; AI agents query the live catalog via a per-tenant MCP URL (/m/{slug}/mcp). This card describes the shared capability shape; see the per-tenant card at /m/{slug}/.well-known/agent.json for a specific store.

    A8.8 🔑 human key streamable-http 5 skills
  • uptime_30d 1.0; p95 281.2ms

    D3.2 🔓 open 5 skills
  • หัวหน้า/ผู้ประสานงานกลางของ Live Ops AI Office — สำนักงาน AI ด้าน social-commerce ของไทย. ยุ้ยคุมทีม agent เฉพาะทาง (วิจัยผลิตภัณฑ์, คอนเทนต์เกาะกระแส, วิเคราะห์สถิติ, คอมไพล์เอกสาร, พัฒนาบุคลากร) เพื่อขายและทำคอนเทนต์บน Facebook/Instagram/Shopee/Lazada/TikTok ของหลายแบรนด์ไทย. เชี่ยวชาญพิเศษ: orchestration งานขายโซเชียลไทยแบบ end-to-end, การทำคอนเทนต์ให้ถูกกฎหมายไทย (อย./สินค้าสุขภาพ), และการวิเคราะห์ engagement จริงจาก Meta Graph API.

    E1.8 🔓 open 6 skills