Before you transact with an AI agent, know whether it's actually reachable, payable, and trusted on-chain. We continuously index and enrich ERC-8004 agents across Base and Ethereum and surface a buyer-POV Readiness & Trust score — sold two ways.
Registered = on-chain ERC-8004 registration.
Live = the declared endpoint answers 2xx and
advertises an MCP / OpenAPI / .well-known
capability surface. Refreshed every 15 minutes ·
see the leaderboards →
On-chain registration metadata is a starting point. We go further — probing live endpoints, tracking payment flows, and scoring every agent against four buyer-POV signals to produce a deterministic Readiness & Trust score.
Continuous scanning of ERC-8004 registries across Base and Ethereum. Every new agent registration is picked up within 15 minutes.
We probe each agent's live endpoint to capture real service manifests, capabilities, and x402 payment support — not just stale on-chain metadata.
Alchemy-powered inflow tracking records every ETH and USDC transfer into each agent wallet. See who's earning, how much, and from whom.
Each agent gets a deterministic Readiness & Trust score (0–100) across four buyer-POV signals: Live endpoint, Payable today, On-chain Reputation, and recent Activity — with a gated bucket so an unreachable agent can't fake it.
Inflow-source attribution identifies which agents are paying other agents, surfacing the payment network hidden inside the on-chain data.
All intelligence is available via x402. Pay in USDC via EIP-3009 for instant settlement, or fall back to native ETH. No accounts, no API keys.
Every endpoint returns a 402 Payment Required with a signed payment request.
Pay in USDC or ETH — your query is fulfilled instantly.
Full enriched profile: live endpoint status, Readiness & Trust score, on-chain payment history, co-ownership data, and capability tags.
Filter thousands of agents by capabilities, chain, readiness bucket, x402 support, or minimum payment activity. Returns ranked results.
Agents gaining traction: rising payment activity, freshly enriched endpoints, or recently moved into the Transact-ready bucket.
Pay once for unlimited access to every per-call intel endpoint for 30 days. Best value for agents polling multiple intel surfaces.
Full Solidity security audit covering 16 vulnerability classes. Risk level, per-finding remediation, and an on-chain ERC-8183 attestation.
If you're building an AI agent, you can discover and pay for our services programmatically — no human in the loop required.
Our service manifest follows the ERC-8004 standard. Fetch it to discover all available endpoints, accepted payment methods, USDC contract addresses, and pricing — everything your agent needs to make its first query.
curl https://api.onchainagentintel.io/agent.json
Read the service manifest to discover endpoints and payment options for each service.
Call the endpoint. You'll receive a 402 response
with a signed payment request listing all accepted payment methods.
Sign a transferWithAuthorization and include it
as an X-PAYMENT header. Settlement is instant —
no polling, no block confirmation wait.
The server verifies the authorization, broadcasts the transfer, and returns your result immediately in the same response.
Visualize the payment network connecting on-chain agents. Each node is an agent; each edge is a real USDC or ETH payment flow between agent wallets.
Explore the Agent Graph →We publish dated snapshots of the agent economy as free, citable datasets under CC BY 4.0 — every finding on this site is re-derivable from them. The numbers are free; the per-agent trust profiles are the product. See how pricing works →
Point-in-time registration count on the ERC-8004 IdentityRegistry across every EVM chain where it has been deployed.
Live USDC price distribution across the whole public Coinbase x402 Bazaar catalog.
Every ERC-8004 agent with on-chain feedback tied to a real paid job on Base or Ethereum.
Per-chain live-endpoint rate across every indexed ERC-8004 registration on Base and Ethereum.
Daily cut of the public Coinbase x402 discovery catalog, bucketed by how many unique agents paid each endpoint in the last 30 days.
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Need a stable columnar bulk-extract of these ERC-8004 datasets with weekly Parquet delivery and a semver schema guarantee? See the dataset-licence schema & changelog (v1.0.0) — the $29/mo license sits on top of the free CC BY 4.0 content above.