SGLang

SGLang can serve open-source models via an OpenAI-compatible HTTP API. OpenClaw can connect to SGLang using the openai-completions API.

OpenClaw can also auto-discover available models from SGLang when you opt in with SGLANG_API_KEY (any value works if your server does not enforce auth) and you do not define an explicit models.providers.sglang entry.

Getting started

1. Start SGLang

   Launch SGLang with an OpenAI-compatible server. Your base URL should expose /v1 endpoints (for example /v1/models, /v1/chat/completions). SGLang commonly runs on:

   • http://127.0.0.1:30000/v1
2. Set an API key

   Any value works if no auth is configured on your server:

   export SGLANG_API_KEY="sglang-local"
   

3. Run onboarding or set a model directly

   openclaw onboard
   

   Or configure the model manually:

   {
     agents: {
       defaults: {
         model: { primary: "sglang/your-model-id" },
       },
     },
   }
   

Model discovery (implicit provider)

When SGLANG_API_KEY is set (or an auth profile exists) and you do not define models.providers.sglang, OpenClaw will query:

• GET http://127.0.0.1:30000/v1/models

and convert the returned IDs into model entries.

Explicit configuration (manual models)

Use explicit config when:

• SGLang runs on a different host/port.
• You want to pin contextWindow/maxTokens values.
• Your server requires a real API key (or you want to control headers).

{
  models: {
    providers: {
      sglang: {
        baseUrl: "http://127.0.0.1:30000/v1",
        apiKey: "${SGLANG_API_KEY}",
        api: "openai-completions",
        models: [
          {
            id: "your-model-id",
            name: "Local SGLang Model",
            reasoning: false,
            input: ["text"],
            cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
            contextWindow: 128000,
            maxTokens: 8192,
          },
        ],
      },
    },
  },
}

Advanced configuration

curl http://127.0.0.1:30000/v1/models

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