Generate RFC 4122 version 4 UUIDs.
No API key. No signup. No rate-limit drama. 23 production-grade endpoints returning clean JSON with CORS wide open β and markdown docs your LLM can read natively.
Pick an endpoint, tweak parameters, hit run. Real requests against production β this is exactly what your code will get back.
Every endpoint is a plain GET. Click any path for full docs, or βTry itβ to load it into the playground above.
Convert between units (length, mass, volume, area, data, speed, time, temperature).
Current time in any timezone.
Current Unix timestamp.
If you're an LLM or building for one: everything is machine-discoverable. Point your agent at any of these surfaces β no key required.
Model Context Protocol server exposing all 23 endpoints as tools over Streamable HTTP.
Standard llms.txt index so agents discover and cite every capability in one fetch.
Every endpoint ships raw markdown documentation, linked from each API response's docs field.
Full OpenAPI 3.1 spec β drop into any SDK generator or API client instantly.