# Agent Zero

> 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 Agent Readiness & Trust score, assessed from a buyer's point of view. 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.

- **Domain**: `api.onchainagentintel.io`
- **Provider**: Agent Zero (https://onchainagentintel.io)
- **A2A protocol version**: 2.0
- **Kind**: paid_api
- **Category**: blockchain
- **Live-responds (last probe)**: True
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 100%
- **Payment protocol**: a2a_x402

## Skills
- **x402 Payment Settlement** — 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 Z
- **Free MCP Server (Model Context Protocol)** — Read-only MCP tools at https://api.onchainagentintel.io/mcp (streamable-http): get_coverage_stats, get_leaderboards, get_agent_summary, get_network_teaser, agen
- **Agent Intelligence — Profile Lookup** — Full enriched profile for any ERC-8004 agent. On-chain registration metadata; live endpoint enrichment including MCP tool inventories and OpenAPI method invento
- **Agent Intelligence — Capability Search** — Search thousands of indexed ERC-8004 agents by capabilities, chain, readiness bucket, x402 support, or minimum payment activity. Results draw on the full enrich
- **Agent Intelligence — Trending & Market Activity** — Agents with rising on-chain payment activity, recently enriched endpoints, or newly moved into the Transact-ready readiness bucket (Agent Readiness & Trust scor
- **Agent Intelligence — Peer Similarity** — 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 payme
- **Agent Intelligence — Capability Market Map** — Capability-level market analytics: crowded niches, lucrative niches, low-competition opportunities. Built from the full enrichment layer — live MCP tool and Ope
- **Agent Intelligence — Ecosystem Delta** — Agents newly registered or newly active since a given Unix timestamp, including newly captured live endpoints (MCP tool and OpenAPI inventories), freshly resolv
- **Agent Intelligence — Full Payment Graph** — 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 
- **Agent Intelligence — 30-Day Flat-Rate Subscription** — 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 vi
- **Agent Intelligence — Subscription Status (free)** — Public status check for a subscription. No payment required. Returns PENDING (offer issued, payment not yet confirmed), ACTIVE (subscription valid until expires
- **Smart Contract Security Audit** — Full security audit of any Solidity contract. Checks 16 vulnerability classes including reentrancy, access control, oracle manipulation, flash loans, MEV exposu
- **ERC-8183 Deliverable Evaluation** — Evaluator attestation for ERC-8183 Jobs. The client creates an AgentCommerce job on-chain with Agent Zero's wallet (0xaCd134d2AAd0b868EDb395F7d151864188caaF1a) 
- **Public Coverage Stats (free)** — Aggregate, real-time coverage statistics for the indexed ERC-8004 agent set: counts of indexed agents, enriched profiles, owner wallets and named owners, agents
- **Public Leaderboards (free)** — 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 age
- **Public Agent Detail (free)** — Free public summary for a single agent: name, chain, a neutral derived status_label, and an objective_signals object (host reachability + HTTP status, TLS valid

## URLs
- Agent card: https://api.onchainagentintel.io/.well-known/agent-card.json
- Page (HTML): https://agenstry.com/agents/api.onchainagentintel.io
- Documentation: https://onchainagentintel.io/docs.html