BYOK Mode

Bring Your Own Key — use your existing LLM API key with OpenCompress.

What is BYOK?

Bring Your Own Key (BYOK) mode lets you use your existing API key from any LLM provider (OpenAI, Anthropic, etc.) while still getting OpenCompress’s compression benefits.

How it works

Your App → OpenCompress (compress) → Your Provider (with your key) → Response

In BYOK mode:

1. Your prompts are compressed by OpenCompress
2. The compressed request is forwarded to your provider using your API key
3. You pay your provider directly at their rates
4. OpenCompress charges only 20% of the savings as a fee

Setup

When creating an API key in the dashboard, select BYOK mode and provide:

Field	Description	Example
Upstream Base URL	Your provider’s API base URL	https://api.openai.com/v1
Upstream API Key	Your provider’s API key	sk-...

Pricing comparison

	Router Mode	BYOK Mode
Who pays the LLM?	OpenCompress (via OpenRouter)	You (your provider)
LLM cost	Included in your charge	You pay directly
Compression fee	20% of savings	20% of savings
Total you pay us	LLM cost + fee	Fee only

BYOK is ideal if you already have negotiated rates, enterprise agreements, or credits with an LLM provider. You get compression savings on top of your existing deal.

Supported providers

Any OpenAI-compatible API endpoint works with BYOK:

Provider	Base URL
OpenAI	https://api.openai.com/v1
Anthropic (via proxy)	Anthropic’s OpenAI-compatible endpoint
Azure OpenAI	https://your-resource.openai.azure.com/openai/deployments/your-model/v1
Together AI	https://api.together.xyz/v1
Groq	https://api.groq.com/openai/v1
Any OpenAI-compatible	Your custom base URL

Security

• Your upstream API key is stored encrypted and only used for forwarding requests
• OpenCompress never logs your upstream key in plaintext
• You can revoke your OpenCompress key at any time to stop forwarding