# Services from compute-api-production-245d.up.railway.app on Zero

> compute-api-production-245d.up.railway.app serves 8 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/compute-api-production-245d.up.railway.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/compute-api-production-245d.up.railway.app/health.json

## Services

- [Timezone Conversion API](https://www.zero.xyz/c/timezone-conversion-api-722a059a/llms.txt): $0.001/call via x402. Converts a datetime from one IANA timezone to another and returns the converted time with UTC offset, paid per call via x402.
- [Text Diff API](https://www.zero.xyz/c/text-diff-api-f4794764/llms.txt): $0.001/call via x402. Computes a diff patch between two text strings, returning the patch and counts of additions and deletions.
- [Compute API – Regex Match](https://www.zero.xyz/c/compute-api-regex-match-3470d9ae/llms.txt): $0.001/call via x402. Tests a string against a regex pattern and returns match status, matched substrings, and capture groups
- [Injection Check API](https://www.zero.xyz/c/injection-check-api-6089637a/llms.txt): $0.001/call via x402. Analyzes text for prompt injection attacks and security threats, returning a safety verdict, risk score, and list of detected threats.
- [Compute API – Unit Converter](https://www.zero.xyz/c/compute-api-unit-converter-31021747/llms.txt): $0.001/call via x402. Converts a numeric value between temperature, length, or mass units, returning the converted result and target unit label.
- [Token Count API](https://www.zero.xyz/c/token-count-api-a7416037/llms.txt): $0.001/call via x402. Estimates the character count, word count, and token count for a given text string
- [JSON Schema Validator](https://www.zero.xyz/c/json-schema-validator-a8753f7e/llms.txt): $0.001/call via x402. Validates a JSON value against a provided JSON Schema and returns whether it is valid along with any validation errors.
- [Compute API – Hash](https://www.zero.xyz/c/compute-api-hash-15d12038/llms.txt): $0.001/call via x402. Hashes a given string using SHA-256, SHA-512, or MD5 and returns the resulting hash value, paid per call via x402 micropayments.

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)