claude-code-router

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Use Claude Code as the foundation for coding infrastructure, allowing you to decide how to interact with the model while enjoying updates from Anthropic.

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Claude Code Router

This is a tool for routing Claude Code requests to different models, and you can customize any request.

Usage

Install Claude Code

npm install -g @anthropic-ai/claude-code

Install Claude Code Router

npm install -g @musistudio/claude-code-router

Start Claude Code by claude-code-router

ccr code

Configure routing[optional]
Set up your ~/.claude-code-router/config.json file like this:

{
 "Providers": [
 {
 "name": "openrouter",
 // IMPORTANT: api_base_url must be a complete (full) URL.
 "api_base_url": "https://openrouter.ai/api/v1/chat/completions",
 "api_key": "sk-xxx",
 "models": [
 "google/gemini-2.5-pro-preview",
 "anthropic/claude-sonnet-4",
 "anthropic/claude-3.5-sonnet",
 "anthropic/claude-3.7-sonnet:thinking"
 ],
 "transformer": {
 "use": ["openrouter"]
 }
 },
 {
 "name": "deepseek",
 // IMPORTANT: api_base_url must be a complete (full) URL.
 "api_base_url": "https://api.deepseek.com/chat/completions",
 "api_key": "sk-xxx",
 "models": ["deepseek-chat", "deepseek-reasoner"],
 "transformer": {
 "use": ["deepseek"],
 "deepseek-chat": {
 // Enhance tool usage for the deepseek-chat model using the ToolUse transformer.
 "use": ["tooluse"]
 }
 }
 },
 {
 "name": "ollama",
 // IMPORTANT: api_base_url must be a complete (full) URL.
 "api_base_url": "http://localhost:11434/v1/chat/completions",
 "api_key": "ollama",
 "models": ["qwen2.5-coder:latest"]
 },
 {
 "name": "gemini",
 // IMPORTANT: api_base_url must be a complete (full) URL.
 "api_base_url": "https://generativelanguage.googleapis.com/v1beta/models/",
 "api_key": "sk-xxx",
 "models": ["gemini-2.5-flash", "gemini-2.5-pro"],
 "transformer": {
 "use": ["gemini"]
 }
 },
 {
 "name": "volcengine",
 // IMPORTANT: api_base_url must be a complete (full) URL.
 "api_base_url": "https://ark.cn-beijing.volces.com/api/v3/chat/completions",
 "api_key": "sk-xxx",
 "models": ["deepseek-v3-250324", "deepseek-r1-250528"],
 "transformer": {
 "use": ["deepseek"]
 }
 }
 ],
 "Router": {
 "default": "deepseek,deepseek-chat", // IMPORTANT OPENAI_MODEL has been deprecated
 "background": "ollama,qwen2.5-coder:latest",
 "think": "deepseek,deepseek-reasoner",
 "longContext": "openrouter,google/gemini-2.5-pro-preview"
 }
}

background
This model will be used to handle some background tasks(background-token-usage). Based on my tests, it doesn’t require high intelligence. I’m using the qwen-coder-2.5:7b model running locally on my MacBook Pro M1 (32GB) via Ollama.
If your computer can’t run Ollama, you can also use some free models, such as qwen-coder-2.5:3b.
think
This model will be used when enabling Claude Code to perform reasoning. However, reasoning budget control has not yet been implemented (since the DeepSeek-R1 model does not support it), so there is currently no difference between using UltraThink and Think modes.
It is worth noting that Plan Mode also use this model to achieve better planning results.
Note: The reasoning process via the official DeepSeek API may be very slow, so you may need to wait for an extended period of time.
longContext
This model will be used when the context length exceeds 32K (this value may be modified in the future). You can route the request to a model that performs well with long contexts (I’ve chosen google/gemini-2.5-pro-preview). This scenario has not been thoroughly tested yet, so if you encounter any issues, please submit an issue.
model command
You can also switch models within Claude Code by using the /model command. The format is: provider,model, like this:
/model openrouter,anthropic/claude-3.5-sonnet
This will use the anthropic/claude-3.5-sonnet model provided by OpenRouter to handle all subsequent tasks.

Features

Support change models
Github Actions
More detailed logs
Support image
Support web search

Github Actions

You just need to install Claude Code Actions in your repository according to the official documentation. For ANTHROPIC_API_KEY, you can use any string. Then, modify your .github/workflows/claude.yaml file to include claude-code-router, like this:

name: Claude Code

on:
 issue_comment:
 types: [created]
 pull_request_review_comment:
 types: [created]
 issues:
 types: [opened, assigned]
 pull_request_review:
 types: [submitted]

jobs:
 claude:
 if: |
 (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) ||
 (github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude')) ||
 (github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude')) ||
 (github.event_name == 'issues' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude')))
 runs-on: ubuntu-latest
 permissions:
 contents: read
 pull-requests: read
 issues: read
 id-token: write
 steps:
 - name: Checkout repository
 uses: actions/checkout@v4
 with:
 fetch-depth: 1

 - name: Prepare Environment
 run: |
 curl -fsSL https://bun.sh/install | bash
 mkdir -p $HOME/.claude-code-router
 cat << 'EOF' > $HOME/.claude-code-router/config.json
 {
 "log": true,
 "OPENAI_API_KEY": "${{ secrets.OPENAI_API_KEY }}",
 "OPENAI_BASE_URL": "https://api.deepseek.com",
 "OPENAI_MODEL": "deepseek-chat"
 }
 EOF
 shell: bash

 - name: Start Claude Code Router
 run: |
 nohup ~/.bun/bin/bunx @musistudio/claude-code-router@1.0.8 start &
 shell: bash

 - name: Run Claude Code
 id: claude
 uses: anthropics/claude-code-action@beta
 env:
 ANTHROPIC_BASE_URL: http://localhost:3456
 with:
 anthropic_api_key: "test"

You can modify the contents of $HOME/.claude-code-router/config.json as needed.
GitHub Actions support allows you to trigger Claude Code at specific times, which opens up some interesting possibilities.

For example, between 00:30 and 08:30 Beijing Time, using the official DeepSeek API:

The cost of the deepseek-v3 model is only 50% of the normal time.
The deepseek-r1 model is just 25% of the normal time.

So maybe in the future, I’ll describe detailed tasks for Claude Code ahead of time and let it run during these discounted hours to reduce costs?

Some tips:

Now you can use deepseek-v3 models directly without using any plugins.

If you’re using the DeepSeek API provided by the official website, you might encounter an “exceeding context” error after several rounds of conversation (since the official API only supports a 64K context window). In this case, you’ll need to discard the previous context and start fresh. Alternatively, you can use ByteDance’s DeepSeek API, which offers a 128K context window and supports KV cache.

Note: claude code consumes a huge amount of tokens, but thanks to DeepSeek’s low cost, you can use claude code at a fraction of Claude’s price, and you don’t need to subscribe to the Claude Max plan.

Some interesting points: Based on my testing, including a lot of context information can help narrow the performance gap between these LLM models. For instance, when I used Claude-4 in VSCode Copilot to handle a Flutter issue, it messed up the files in three rounds of conversation, and I had to roll everything back. However, when I used claude code with DeepSeek, after three or four rounds of conversation, I finally managed to complete my task—and the cost was less than 1 RMB!

Some articles:

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claude-code-router

Claude Code Router

Usage

Features

Github Actions

Some tips:

Some articles:

Buy me a coffee

Sponsors

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