# Services from ai-agent-payment-safety-stack.onrender.com on Zero

> ai-agent-payment-safety-stack.onrender.com 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/ai-agent-payment-safety-stack.onrender.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/ai-agent-payment-safety-stack.onrender.com/health.json

## Services

- [AI Agent Payment Safety Stack – Approval Unit Builder](https://www.zero.xyz/c/ai-agent-payment-safety-stack-approval-unit-builder-ded59353/llms.txt): $0.05/call via x402. Builds a minimal human decision contract (approval unit) from AI-generated findings, patches, payment requests, or decision-support outputs, enabling human-in-the-loop oversight before consequential actions.
- [Counterparty Invoice & Corporate Number Verification](https://www.zero.xyz/c/counterparty-invoice-corporate-number-verification-ee2972c3/llms.txt): $0.02/call via x402. Verifies a payment counterparty's name, invoice registration number, and corporate number for format correctness and name consistency before an AI agent executes a payment.
- [AI Agent Payment Evidence Checker](https://www.zero.xyz/c/ai-agent-payment-evidence-checker-8763dfc1/llms.txt): $0.03/call via x402. Verifies that an AI-agent payment produced the expected service response and returns audit evidence confirming the transaction outcome.

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)