OpenCode

OpenCode registers providers through opencode.json using the AI SDK. Add BitRouter as an OpenAI-compatible provider and the terminal agent routes across the whole registry.

Prerequisites

• BitRouter running — local proxy at http://127.0.0.1:4356, or BitRouter Cloud at https://api.bitrouter.ai.

• OpenCode installed:

  curl -fsSL https://opencode.ai/install | bash
  # or: npm install -g opencode-ai

Point OpenCode at BitRouter

Add a provider block to opencode.json (project root or ~/.config/opencode/opencode.json). baseURL points at the /v1 root; the model keys are the registry ids you want to expose.

{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "bitrouter": {
      "npm": "@ai-sdk/openai-compatible",
      "name": "BitRouter",
      "options": {
        "baseURL": "http://127.0.0.1:4356/v1",
        "apiKey": "{env:BITROUTER_API_KEY}"
      },
      "models": {
        "openai/gpt-4o": { "name": "GPT-4o via BitRouter" },
        "anthropic/claude-sonnet-4-6": { "name": "Claude Sonnet 4.6 via BitRouter" }
      }
    }
  }
}

opencode

Pick a model

Each key under models is a registry id in provider/model form, optionally with a :cost / :latency variant. Select one in the TUI, or run opencode run --model bitrouter/openai/gpt-4o. See Models.

Learn more

• OpenCode — providers · config
• Model fallback