# Services from probe.onchainintel.net on Zero

> probe.onchainintel.net serves 3 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/probe.onchainintel.net
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/probe.onchainintel.net/health.json

## Services

- [OnchainIntel Probe - Premium Endpoint Verification with Attestation](https://www.zero.xyz/c/probe-onchainintel-net-d74d366b/llms.txt): $1/call via x402. Performs premium HTTP endpoint verification with full cryptographic attestation, confirming reachability, correctness, and health of a target endpoint
- [OnChainIntel Probe Ping](https://www.zero.xyz/c/probe-onchainintel-net-ec8928d3/llms.txt): $0.05/call via x402. Lightweight health verification ping that checks whether an HTTP endpoint is alive and responsive
- [OnchainIntel Probe - Standard Health Check](https://www.zero.xyz/c/probe-onchainintel-net-6e18928f/llms.txt): $0.25/call via x402. Performs a standard HTTP endpoint health check with extended verification, returning status, endpoint identity, and a timestamp

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)