# Services from revert.wtf on Zero

> revert.wtf serves 5 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/revert.wtf
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/revert.wtf/health.json

## Services

- [revert.wtf AA-Decode](https://www.zero.xyz/c/revert-wtf-aa-decode-389b901c/llms.txt): $0.001/call via x402. Decodes ERC-4337 UserOperation and EntryPoint revert bytes into human-readable error explanations for AAxx failure codes.
- [revert.wtf ABI-Aware EVM Revert Data Decoder](https://www.zero.xyz/c/revert-wtf-abi-aware-evm-revert-data-decoder-29799c46/llms.txt): $0.001/call via x402. Decodes raw EVM revert bytes into human-readable error messages using an optional ABI JSON for custom error types.
- [revert.wtf Error Catalog Search](https://www.zero.xyz/c/revert-wtf-error-catalog-search-79ac8f26/llms.txt): $0.001/call via x402. Search the revert.wtf catalog of EVM/RPC/wallet/UserOperation/x402 error explanations and protocol-specific failure entries by keyword or query.
- [revert.wtf x402 Payment Explainer](https://www.zero.xyz/c/revert-wtf-x402-payment-explainer-a809fe80/llms.txt): $0.001/call via x402. Explains the x402 payment requirements and request details for a given API endpoint by parsing raw HTTP 402 response data.
- [revert.wtf x402 Payment Option Selector](https://www.zero.xyz/c/revert-wtf-x402-payment-option-selector-e296a2b3/llms.txt): $0.001/call via x402. Selects and confirms the accepted x402 micropayment option for a given API endpoint, enabling paid API access.

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)