# Services from specdelta-kl4hfo6j2q-as.a.run.app on Zero

> specdelta-kl4hfo6j2q-as.a.run.app 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/specdelta-kl4hfo6j2q-as.a.run.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/specdelta-kl4hfo6j2q-as.a.run.app/health.json

## Services

- [SpecDelta Schema Comparison](https://www.zero.xyz/c/specdelta-schema-comparison-22a508c4/llms.txt): $0.03/call via x402. Detects breaking changes and permission expansions between two versions of an agent tool specification (MCP, OpenAI tool, or OpenAPI).
- [SpecDelta Spec Linter](https://www.zero.xyz/c/specdelta-spec-linter-c3246cc6/llms.txt): $0.01/call via x402. Lints an MCP, OpenAI tool, or OpenAPI JSON specification and returns a signed PASS/WARN/FAIL receipt

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)