OpenClaw

OpenClaw is a powerful AI agent framework for Node.js that supports 40+ LLM providers. You can add Router9 as a custom OpenAI-compatible provider.

Setup

Add Router9 as a custom provider in your OpenClaw configuration file:

{
  models: {
    providers: {
      router9: {
        baseUrl: "https://api.router9.com/v1",
        apiKey: "${ROUTER9_API_KEY}",
        api: "openai-completions",
        models: [
          {
            id: "gpt-4o",
            name: "GPT-4o via Router9",
            contextWindow: 128000,
            maxTokens: 16384
          },
          {
            id: "claude-sonnet-4-20250514",
            name: "Claude Sonnet via Router9",
            contextWindow: 200000,
            maxTokens: 8192
          }
        ]
      }
    }
  }
}

Set as Default Model

{
  agents: {
    defaults: {
      model: { primary: "router9/gpt-4o" }
    }
  }
}

Environment Variables

Set your Router9 API key:

export ROUTER9_API_KEY=sk-r9k-your-key-here

The apiKey field in the config references this via "${ROUTER9_API_KEY}".

Using the Anthropic Protocol

If you prefer to use Anthropic-native models through OpenClaw's Anthropic protocol:

{
  models: {
    providers: {
      router9_anthropic: {
        baseUrl: "https://api.router9.com/anthropic",
        apiKey: "${ROUTER9_API_KEY}",
        api: "anthropic-messages",
        models: [
          {
            id: "claude-sonnet-4-20250514",
            name: "Claude Sonnet via Router9",
            contextWindow: 200000,
            maxTokens: 8192
          }
        ]
      }
    }
  }
}

CLI Setup

# Set your Router9 key
export ROUTER9_API_KEY=sk-r9k-your-key-here

# Set the default model to Router9
openclaw models set router9/gpt-4o

Tips

OpenClaw supports key rotation. You can set multiple Router9 keys via ROUTER9_API_KEYS (comma-separated) for redundancy.
Model references follow the provider/model format — use router9/gpt-4o, router9/claude-sonnet-4-20250514, etc.
See the OpenClaw providers docs for advanced options like failover and model metadata.