# Services from agent-trust.agent-utils.workers.dev on Zero

> agent-trust.agent-utils.workers.dev serves 4 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/agent-trust.agent-utils.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/agent-trust.agent-utils.workers.dev/health.json

## Services

- [Agent Trust Lookup](https://www.zero.xyz/c/agent-trust-lookup-a3113723/llms.txt): $0.01/call via x402. Assesses the trustworthiness of an EVM wallet address on Base by analyzing on-chain transaction history, micro-payment behavior, ERC-8004 agent identity, and agent-card presence to produce a trust score and tier.
- [Agent Trust Lookup – Verify Signed Request](https://www.zero.xyz/c/agent-trust-lookup-verify-signed-request-d22f3a28/llms.txt): $0.005/call via x402. Verifies the cryptographic signature on an incoming agent request, checking the signing key against a published agent-card directory to confirm the agent's identity is legitimate.
- [Agent Trust Lookup – Domain Signal Check](https://www.zero.xyz/c/agent-trust-lookup-domain-signal-check-8fb86620/llms.txt): $0.01/call via x402. Given a hostname, returns agent-readiness signals for that domain: HTTPS status, reachability, agent card presence, Web Bot Auth keys, llms.txt, robots.txt, x402 payment support, and MCP well-known endpoint.
- [Agent Trust Lookup](https://www.zero.xyz/c/agent-trust-lookup-aa988aa7/llms.txt): $0.01/call via x402. Looks up on-chain trust signals for an ERC-8004 registered AI agent on Base, including wallet history, micro-payment behavior, identity metadata, and community feedback.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)