Lynx Developer Platform
One API for every Lynx model.
A fast, free, OpenAI-compatible chat completions API. Drop it into any app, website, or agent in minutes. Flip on Lynx Personality for the warm, human Lynx voice.
Quickstart
The Lynx API speaks the OpenAI chat completions format. If your stack already talks to OpenAI, point the base URL at Lynx and use a Lynx key.
Authentication
Send your key as a Bearer token on every request: Authorization: Bearer sk_tss.... Keys start with sk_tss. The API is free, with no metering or billing.
One header. Standard OpenAI-style authorization, also accepts x-api-key.
Keys are never stored in plaintext. Only salted hashes live on the edge.
Served from hundreds of locations for low latency anywhere.
Models
Three tiers. Explorer for fast multimodal work, Scout for balanced general purpose chat, and Pioneer for heavy, deep reasoning. Pass any id below, or use lynx-scout, lynx-explorer, lynx-pioneer, default.
| Model id | Name | Tier | Best for |
|---|
Lynx Personality
By default you get the raw model with your own system prompt. Set lynx_personality: true and Lynx wraps the request in its warm, grounded, genuinely human voice, plus a humanizer that keeps replies natural. Your custom system prompt still applies on top.
{
"model": "lynx-5.2-scout",
"lynx_personality": true,
"messages": [{ "role": "user", "content": "hey" }]
}