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DeepSeek

Credentials

  1. Go to https://chat.deepseek.com and sign in
  2. Open DevTools (F12) → Network tab → reload → click any request to chat.deepseek.com
  3. Copy the values:
Source Env var Required How to get
Full Cookie header DEEPSEEK_COOKIE ✅ DevTools → Network → Request Headers → copy the entire Cookie: ... line
authorization header DEEPSEEK_AUTH_TOKEN ✅ DevTools → Network → Request Headers → copy the authorization: ... value

The authorization value looks like Bearer eyJhbGciOiJIUzI1NiIs.... Copy the entire value. The server auto-prepends Bearer if missing from DEEPSEEK_AUTH_TOKEN.

Or use Cookie-Editor extension to export all cookies at once.

Model IDs

| Model | Description | |---|---|---| | deepseek-v3 | Default model without extended thinking | | deepseek-r1 | Default model with extended thinking | | deepseek-v4 | Default model without extended thinking | | deepseek-r4 | Default model with extended thinking |

Endpoints

DeepSeek has no provider-specific endpoints. Only the common OpenAI-compatible endpoints (/models, /chat/completions).

Chat Completions — Additional fields

Beyond the common fields:

Field Type Required Default Description
search_enabled bool ❌ false Enable web search with citations (not yet functional in SDK)

Response — Additional fields

Field Type Description
choices[].message.reasoning_content string Extended thinking trace (for R1/R4 models)
citation object Web search citation data (when search is available)
title string Auto-generated conversation title

Examples

# Basic chat
curl -s http://localhost:8000/v1/deepseek/chat/completions \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v3",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

# Reasoning model (returns reasoning_content)
curl -s http://localhost:8000/v1/deepseek/chat/completions \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-r1",
    "messages": [{"role": "user", "content": "Solve 2+2"}]
  }'

# Expert model
curl -s http://localhost:8000/v1/deepseek/chat/completions \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4-expert",
    "messages": [{"role": "user", "content": "Explain quantum computing"}]
  }'

# Streaming
curl -s -N http://localhost:8000/v1/deepseek/chat/completions \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v3",
    "messages": [{"role": "user", "content": "Count to 5"}],
    "stream": true
  }'