One endpoint.
One key. Every provider.

Connect your Freebuff, OpenAI, and other AI accounts. Get a single OpenAI-compatible API endpoint that routes to all of them.

gateway.tesserel.tech

curl https://gateway.tesserel.tech/v1/chat/completions \
  -H "Authorization: Bearer sk_tesserel_" \
  -H "Content-Type: application/json" \
  -d {
     "model": "deepseek/deepseek-v4-flash",
     "messages": [{
       "role": "user",
       "content": "Hello, world!"
    }]
  }

Built for developers

Everything you need to manage multiple AI providers through a single gateway.

🔗

Multi-provider

Connect Freebuff, OpenAI, and more. One endpoint routes to all.

⚡

OpenAI compatible

Drop-in replacement. Works with any OpenAI-compatible client.

🔒

Model access control

Free and premium tiers. Control who gets access to what.

📡

Streaming

Full SSE streaming support. Real-time token delivery.

📊

Usage analytics

Track requests, tokens, and costs across all providers.

🔑

API key management

Generate, rotate, and revoke keys. Per-user isolation.

One endpoint.One key. Every provider.

Built for developers

One endpoint.
One key. Every provider.