SDKs & integrations
CLI integration

CLI Integration

Use official CLIs by pointing their base URLs to KushRouter and providing your KushRouter API key.

OpenAI Codex CLI

Configuration via config.toml

Codex uses a configuration file at ~/.codex/config.toml. Add a custom model provider:

# Kushrouter endpoint
model_provider="kushrouter"
model="gpt-5.1-codex"
 
[model_providers.kushrouter]
name="kushrouter"
api_base = "https://api.kushrouter.com/api/openai/v1"
base_url="https://api.kushrouter.com/api/openai/v1"
api_key_env = "KUSHROUTER_API_KEY"
env_key="KUSHROUTER_API_KEY"
wire_api = "responses"

Set Environment Variable

Set your API key:

Bash/Linux/macOS:

export KUSHROUTER_API_KEY="your-kushrouter-api-key"

Windows PowerShell:

$env:KUSHROUTER_API_KEY = "your-kushrouter-api-key"

Alternative: Environment Variable Override

You can also override the base URL for the default OpenAI provider:

export OPENAI_BASE_URL="https://api.kushrouter.com/api/openai/v1"
export OPENAI_API_KEY="your-kushrouter-api-key"
codex --model gpt-5-codex

Note: gpt-5-codex is routed via the OpenAI Responses API only.

Claude Code

Claude Code uses environment variables for configuration.

Set Environment Variables

Bash/Linux/macOS:

export ANTHROPIC_BASE_URL="https://api.kushrouter.com/api/anthropic"
export ANTHROPIC_AUTH_TOKEN="your-kushrouter-api-key"
claude

Windows PowerShell:

$env:ANTHROPIC_BASE_URL = "https://api.kushrouter.com/api/anthropic"
$env:ANTHROPIC_AUTH_TOKEN = "your-kushrouter-api-key"
claude

Optional Configuration

You can also configure additional settings if needed:

# Optional: Set a specific model (Claude Code will use its default if not set)
export ANTHROPIC_MODEL="claude-sonnet-4-5-20250929"
 
# Optional: Increase timeout for long-running requests (in milliseconds)
export API_TIMEOUT_MS=600000
 
# Optional: Disable non-essential network traffic
export CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1

OpenCode

OpenCode uses a JSON configuration file and supports custom providers with OpenAI-compatible APIs.

Configuration via opencode.json

Create or edit ~/.config/opencode/opencode.json (global config) or opencode.json in your project root:

{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "kushrouter": {
      "npm": "@ai-sdk/openai-compatible",
      "name": "KushRouter",
      "options": {
        "baseURL": "https://api.kushrouter.com/api/openai/v1",
        "apiKey": "{env:KUSHROUTER_API_KEY}"
      },
      "models": {
        "gpt-5-2025-08-07": {
          "name": "GPT-5"
        },
        "claude-sonnet-4-5-20250929": {
          "name": "Claude Sonnet"
        }
      }
    }
  },
  "model": "kushrouter/gpt-5-2025-08-07"
}

Set Environment Variable

Bash/Linux/macOS:

export KUSHROUTER_API_KEY="your-kushrouter-api-key"

Windows PowerShell:

$env:KUSHROUTER_API_KEY = "your-kushrouter-api-key"

Run OpenCode

opencode

Once running, use the /models command to switch between configured models.

Alternative: Using opencode auth login

You can also add credentials interactively:

opencode auth login

Select "Other" and enter:

  • Provider ID: kushrouter
  • API Key: your KushRouter API key

Then add the provider configuration to your opencode.json as shown above (without the apiKey field, as it's already stored).

Troubleshooting

OpenAI Codex

  • Ensure your base URL includes the full path with /v1 suffix: https://api.kushrouter.com/api/openai/v1
  • The base URL will have /chat/completions automatically appended by Codex
  • Verify your config.toml file is at ~/.codex/config.toml (or $CODEX_HOME/config.toml if you've customized it)
  • Check that the env_key matches your environment variable name exactly
  • Use codex mcp list to verify your configuration

Claude Code

  • Ensure your base URL matches the Anthropic endpoint format: https://api.kushrouter.com/api/anthropic
  • Verify the API key is set with ANTHROPIC_AUTH_TOKEN (not ANTHROPIC_API_KEY)
  • Claude Code does not use a config file - all configuration is via environment variables

General

  • Verify your KushRouter API key has sufficient credits
  • Check that your base URL matches the correct endpoint family:
    • OpenAI/Codex: /api/openai/v1
    • Anthropic/Claude Code: /api/anthropic
  • Test your connection with a simple request first

Installation

OpenAI Codex

# via npm
npm install -g @openai/codex
 
# via Homebrew
brew install codex

Claude Code

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