Synthorai API Documentation

Synthorai API documentation

Synthorai is an OpenAI-compatible LLM API gateway: one API key for GPT, Claude, Gemini, Qwen, DeepSeek and more, with zero prompt retention, prompt caching and transparent per-token pricing.

• Overview — how the gateway works
• Quickstart — first request in 5 minutes (curl, Python, Node.js)
• Protocols — OpenAI Chat Completions, Anthropic Messages, Responses API, Gemini
• Use with Claude Code
• Use with OpenAI Codex CLI
• SDK & tool compatibility matrix
• Provisioning keys — programmatic key management

Looking for model availability and live prices? See the model catalogue and pricing.