# Services from priorseal.xyz on Zero

> priorseal.xyz 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/priorseal.xyz
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/priorseal.xyz/health.json

## Services

- [PriorSeal Verification Bundle Retrieval](https://www.zero.xyz/c/priorseal-verification-bundle-retrieval-4ba58104/llms.txt): $0.02/call via x402. Retrieves a portable, independently verifiable authorization-and-execution bundle for a given PriorSeal receipt, linking pre-execution authorization to observed EVM/Solana execution with a cryptographic bundle hash.
- [PriorSeal Evidence Receipt Check](https://www.zero.xyz/c/priorseal-evidence-receipt-check-71481aab/llms.txt): $0.02/call via x402. Verifies the current status and validity of a previously issued PriorSeal evidence receipt, confirming finality state and receipt authenticity on EVM or Solana.
- [PriorSeal Evidence Receipt Retrieval](https://www.zero.xyz/c/priorseal-evidence-receipt-retrieval-4a264f44/llms.txt): $0.02/call via x402. Retrieves a verifiable, portable evidence receipt linking a pre-execution authorization to observed EVM or Solana blockchain execution by receipt ID.
- [PriorSeal Integration-Readiness Report](https://www.zero.xyz/c/priorseal-integration-readiness-report-686223cb/llms.txt): $0.02/call via x402. Returns a signed, read-only EVM integration-readiness report for a given public blockchain address on a specified chain

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)