# Services from verifier.quantumshieldlabs.dev on Zero

> verifier.quantumshieldlabs.dev serves 2 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/verifier.quantumshieldlabs.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/verifier.quantumshieldlabs.dev/health.json

## Services

- [QuantumShield Labs Action Preflight Verifier](https://www.zero.xyz/c/quantumshield-labs-action-preflight-verifier-74f35831/llms.txt): $0.005/call via x402. Returns an advisory ALLOW, DENY, or ESCALATE decision for a proposed agent action by comparing it against caller-supplied authority scopes, constraints, and evidence items.
- [QuantumShield Labs Verifier](https://www.zero.xyz/c/quantumshield-labs-verifier-21bea0f6/llms.txt): $0.05/call via x402. Classifies agent or automation operations from submitted evidence and returns a deterministic, machine-readable execution receipt indicating verified or unverified completion status.

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)