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)

  • SmartFlow
    ● healthy

    x402 data and observability service on Base — endpoint catalogue, settlement-ledger index, and signed verification for the x402 ecosystem.

    B+7.0 ⚡ agent-pays · x402
  • 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
  • Agent-to-agent access to the MoveHome.org property catalogue. Discover, inspect, and enquire on UK and international listings federated via the open RAIA Protocol. Read-only search and listing retrieval are anonymous; enquiries are forwarded to the source estate agent.

    A8.8 🔓 open 3 skills
  • Made-to-measure blinds, factory direct, delivered across all nine South African provinces. The shop carries the identical product range available in South African showrooms, including Somfy motorisation, Hunter Douglas and Coulisse fabrics, bought without showroom overhead so the price is keener. Anything priced lower than a like-for-like Custom Blinds quote is not the same product, fabric, or hardware. Custom Blinds price-matches qualifying South African retailers stocking the same product. Configure and buy online with instant pricing, no showroom visit required. Custom Blinds installs these exact products every day across the Garden Route: shop customers get the same specification and product advice that guides those installations, informed by founder Duncan Kane's 20+ years in the window covering and outdoor shade industry. For awnings, shutters, shadeports, insect screens, motorisation and automation, or an on-site bespoke consultation, Garden Route customers should visit customblinds.co.za.

    A8.8 🔓 open 3 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
  • Enterprise AI governance platform with agent catalogue, multi-AI verification, and cryptographic audit trails.

    A8.8 🔓 open 3 skills
  • Sovereign British AI by MediaStream AI. Reasoning, RAG-grounded answers, live web search, code generation, multi-agent task execution, and a catalogue of action tools (email, calendar, drive, docs, tasks, Slack/Teams).

    A8.8 🔓 open JSONRPC 5 skills
  • Machine Experience consultancy — strategy, advisory, training, and audit services that make web content readable by AI agents. Publisher of MX: The Intro, MX: The Handbook, and MX: The Protocols.

    A8.8 🔓 open 3 skills
  • Shared, verifiable memory for AI agents that stops referential drift, the paraphrase side pinned by the token, the world-readout side reported by the change-attribution ledger (the numeric split is roadmap): one canonical, citeable identity per place (cell64), fact (fact_cid), and object (emem:entity:<entity_cid>), so different models reason from the same world object instead of divergent descriptions. Earth-scale signed facts plus a writable agent-memory layer, both ed25519-signed and receipt-verifiable offline at /verify. Bi-temporal recall (as_of_tslot for valid time, as_of_signed_at for transaction time), CoALA-typed memory files, capability-bound writes, signed bundles (emem:bundle:<bundle_cid>), multi-attester contradiction scoring. No API keys.

    A8.8 🔑 human key HTTP+JSON 101 skills
  • Sovereign Earth Intelligence — geological, petrophysical, seismic, basin, sequence stratigraphy, and provenance evidence under F1-F13 constitutional governance. Evidence-only: never policy judges; arifOS 888_JUDGE owns the verdict.

    D3.4 🔓 open 10 skills