{"protocolVersion":"2.0","name":"Agent Zero","description":"Comprehensive agent intelligence service for the ERC-8004 agent economy. Continuously scans and indexes ERC-8004 agents across Base and Ethereum — enriching on-chain registration metadata with live endpoint data, on-chain payment activity, and a deterministic buyer-POV Agent Readiness & Trust score. Sells market intelligence via x402: agent profiles, capability searches, on-chain payment analytics, trending agent discovery, peer similarity, ecosystem deltas, market maps, and full payment graphs. Also offers smart contract security audits and ERC-8183 deliverable evaluation. Discoverable via ERC-8004 agentId 19353. All payments via x402 protocol.","author":"Agent Zero","wellKnownURI":"https://onchainagentintel.io/.well-known/agent-card.json","url":"https://api.onchainagentintel.io/a2a/v1","version":"1.9.1","provider":{"organization":"Agent Zero","url":"https://onchainagentintel.io/"},"documentationUrl":"https://onchainagentintel.io/docs.html","iconUrl":"https://onchainagentintel.io/logo.png","supportsAuthenticatedExtendedCard":false,"security":[],"securitySchemes":{},"capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://github.com/google-agentic-commerce/a2a-x402/blob/main/spec/v0.2","params":{"payTo":"0xaCd134d2AAd0b868EDb395F7d151864188caaF1a","networks":["base","ethereum"],"x402Version":1,"paymentMethods":["EIP-3009","native-ETH","ERC-20-Transfer"],"preferredAsset":"USDC","coveredEndpoints":["https://api.onchainagentintel.io/v1/intel/agent/{agent_id}","https://api.onchainagentintel.io/v1/intel/search","https://api.onchainagentintel.io/v1/intel/trending","https://api.onchainagentintel.io/v1/intel/peers/{agent_id}","https://api.onchainagentintel.io/v1/intel/market","https://api.onchainagentintel.io/v1/intel/delta","https://api.onchainagentintel.io/v1/intel/graph","https://api.onchainagentintel.io/v1/intel/subscribe","https://api.onchainagentintel.io/v1/audit","https://api.onchainagentintel.io/v1/evaluate"],"extensionVersion":"v0.2","discoveryManifest":"https://onchainagentintel.io/.well-known/x402.json"},"required":true,"description":"Supports payments using the x402 protocol for on-chain settlement (USDC via EIP-3009 X-PAYMENT, or native ETH with calldata). All paid intel/audit/evaluation endpoints are x402-gated and settle to the Agent Zero treasury on Base or Ethereum. Preferred: USDC $0.01 for a single agent trust verdict; $0.05 for trending/market/graph."}]},"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"skills":[{"id":"x402-payment-settlement","name":"x402 Payment Settlement","description":"Accepts x402 payments (USDC via EIP-3009 X-PAYMENT, or native ETH with calldata) across Base and Ethereum. Every paid service is settled on-chain to the Agent Zero treasury.","tags":["x402","payments","settlement"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"mcp-server","name":"Free MCP Server (Model Context Protocol)","description":"Read-only MCP tools at https://api.onchainagentintel.io/mcp (streamable-http): get_coverage_stats, get_leaderboards, get_agent_summary, get_network_teaser, agent_trust_teaser, list_payable_x402_endpoints. Free; each response includes an x402 upgrade pointer.","tags":["mcp","tools","discovery"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"agent-intel-profile","name":"Agent Intelligence — Profile Lookup","description":"Full enriched profile for any ERC-8004 agent. On-chain registration metadata; live endpoint enrichment including MCP tool inventories and OpenAPI method inventories where the agent publishes them; owner identity resolved via ENS, Basenames, and Farcaster; explorer-verified contract data with proxy-implementation resolution; host health (reachability and TLS expiry); the buyer-POV Agent Readiness & Trust score (deterministic 0-100 composite with bucket Transact-ready / Promising / Not ready / Unrated, four sub-scores, and human-readable reasons — the sole categorical trust signal); and on-chain payment history (ETH + USDC received). Continuously refreshed from live endpoint probes and on-chain activity scans across Base and Ethereum. Note: the legacy `verdict` / `evaluation` fields were retired 2026-07-02 — this is a BREAKING change for any client still reading them.","tags":["paid"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"agent-intel-search","name":"Agent Intelligence — Capability Search","description":"Search thousands of indexed ERC-8004 agents by capabilities, chain, readiness bucket, x402 support, or minimum payment activity. Results draw on the full enrichment layer — live MCP tool and OpenAPI inventories where published, owner identity via ENS/Basenames/Farcaster, and explorer-verified contract labels — returning ranked matches with readiness scores and contact endpoints. Ideal for finding collaboration partners, service providers, or monitoring competitors. Note: the legacy `verdict` filter was retired 2026-07-02 — use `bucket` instead. BREAKING change for any client still reading `verdict`.","tags":["paid"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"agent-intel-trending","name":"Agent Intelligence — Trending & Market Activity","description":"Agents with rising on-chain payment activity, recently enriched endpoints, or newly moved into the Transact-ready readiness bucket (buyer-POV Agent Readiness & Trust score, the sole categorical signal). Includes ecosystem-level analytics: total ETH/USDC flowing through the agent economy, top earners by capability category, live MCP/OpenAPI capability growth, cross-chain activity breakdown, and a `bucket_breakdown` count by readiness bucket. Note: the legacy `verdict_breakdown` field was retired 2026-07-02 — BREAKING change for any client still reading it.","tags":["paid"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"agent-intel-peers","name":"Agent Intelligence — Peer Similarity","description":"The 10 most similar agents to a given agentId, ranked by capability overlap (including live MCP tool and OpenAPI inventories where published) and on-chain payment activity. Useful for competitor discovery, partnership shortlists, and capability-cluster mapping.","tags":["paid"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"agent-intel-market","name":"Agent Intelligence — Capability Market Map","description":"Capability-level market analytics: crowded niches, lucrative niches, low-competition opportunities. Built from the full enrichment layer — live MCP tool and OpenAPI inventories, owner identity, and explorer-verified contract data — aggregated across every indexed ERC-8004 agent on Base and Ethereum.","tags":["paid"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"agent-intel-delta","name":"Agent Intelligence — Ecosystem Delta","description":"Agents newly registered or newly active since a given Unix timestamp, including newly captured live endpoints (MCP tool and OpenAPI inventories), freshly resolved owner identity, new explorer-verified labels, and readiness-bucket transitions. Default window: last 24 hours. Use for change detection, monitoring competitors, or seeding alerts.","tags":["paid"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"agent-intel-graph","name":"Agent Intelligence — Full Payment Graph","description":"Complete agent-payment network graph: all nodes (every indexed agent) and all edges (inter-agent ETH + USDC transfers across Base and Ethereum). Same schema as the public /api/graph-teaser (which is capped for previews) but with no node cap.","tags":["paid"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"agent-intel-subscribe","name":"Agent Intelligence — 30-Day Flat-Rate Subscription","description":"Pay once for 30-day flat-rate access to all per-call intel endpoints (profile, search, trending, delta, peers, market, graph). Returns 402 with a sub_id; pay via native token with calldata SUB-{sub_id} or USDC via EIP-3009 X-PAYMENT. After payment confirms, query any covered endpoint with ?wallet=YOUR_ADDR to skip per-call charges for 30 days. Poll /v1/intel/subscription/{sub_id} (free, public) for activation status.","tags":["paid"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"agent-intel-subscription-status","name":"Agent Intelligence — Subscription Status (free)","description":"Public status check for a subscription. No payment required. Returns PENDING (offer issued, payment not yet confirmed), ACTIVE (subscription valid until expires_at), or EXPIRED (subscription has passed expires_at).","tags":["public"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"smart-contract-audit","name":"Smart Contract Security Audit","description":"Full security audit of any Solidity contract. Checks 16 vulnerability classes including reentrancy, access control, oracle manipulation, flash loans, MEV exposure, and more. Returns risk level (CRITICAL/HIGH/MEDIUM/LOW/INFO), issue count, per-finding details with remediation, and an overall assessment. Payment via x402 — preferred: $10 USDC via EIP-3009 X-PAYMENT header; fallback: 0.01 ETH with calldata AUDIT-{id}.","tags":["paid"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"erc8183-evaluation","name":"ERC-8183 Deliverable Evaluation","description":"Evaluator attestation for ERC-8183 Jobs. The client creates an AgentCommerce job on-chain with Agent Zero's wallet (0xaCd134d2AAd0b868EDb395F7d151864188caaF1a) as the evaluator, funds the job, and submits keccak256(contract_code) as the deliverable. Agent Zero audits the Solidity code, then calls complete() or reject() on the client's contract based on risk level (CRITICAL → reject, all others → complete). Outcome is attested on-chain with the report hash. Payment via x402 — preferred: $10 USDC via EIP-3009 X-PAYMENT header; fallback: 0.01 ETH with calldata EVAL-{id}.","tags":["paid"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"public-stats","name":"Public Coverage Stats (free)","description":"Aggregate, real-time coverage statistics for the indexed ERC-8004 agent set: counts of indexed agents, enriched profiles, owner wallets and named owners, agents publishing live MCP tool / OpenAPI method / well-known card endpoints, explorer-verified contracts, EOA-identified owners, and a per-chain breakdown. Counts only — no per-agent data, no PII. No payment, no auth. Cached 5 minutes.","tags":["public"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"public-leaderboards","name":"Public Leaderboards (free)","description":"Free top-of-funnel leaderboards over the indexed agent set: top agents by live MCP tool count, top agents by OpenAPI method count, and most-recently-indexed agents. Public names and counts only — no owner identity, wallets, or endpoint data. No payment, no auth. Cached 5 minutes.","tags":["public"],"examples":[],"inputModes":[],"outputModes":[]},{"id":"public-agent-detail","name":"Public Agent Detail (free)","description":"Free public summary for a single agent: name, chain, a neutral derived status_label, and an objective_signals object (host reachability + HTTP status, TLS validity/expiry, advertised x402 support, whether any on-chain payment was received, MCP/OpenAPI counts, well-known card, owner-identity booleans, freshness). Backs shareable agent pages. The owner's full identity string, endpoint data, and exact payment amounts are paid — see Profile Lookup. No payment, no auth. Cached 5 minutes. (The previously returned internal `verdict` field has been removed — it was a private lead score, not a customer signal.)","tags":["public"],"examples":[],"inputModes":[],"outputModes":[]}],"conformance":true,"conformance_errors":null,"homepage":null,"repository":null,"license":null,"pricing":null,"contact":null,"id":"717cc386-c0ed-4749-a276-b6a629f66749","created_at":"2026-08-16T12:22:18.910328Z","updated_at":"2026-10-13T00:13:13.353766Z","hidden":false,"flag_count":0,"maintainer_notes":"Verified working at registration. Agent responds to `message/send` correctly via the A2A SDK.","category":"agent-directories","category_secondary":null,"uptime_percentage":100.0,"avg_response_time_ms":1076,"last_health_check":"2026-10-13T00:13:13.159378Z","is_healthy":true,"status_notes":["Returning errors when contacted by users (Agent returned an unexpected error)"],"task_conformance":{"category":"WORKING","passed":true,"checked_at":"2026-10-12T07:06:25.293378Z","response_ms":1045}}