Grok Build

Grok Build reads ~/.grok/config.toml. Merge the blocks below into that file. The endpoint routes built-in Grok models through Sleev, while the extra headers provide Sleev routing and the auth values Grok's servers expect.

[endpoints]
cli_chat_proxy_base_url = "http://127.0.0.1:17321"

[models.extra_headers]
sleev-harness = "grok-build"
sleev-provider = "grok"
X-XAI-Token-Auth = "xai-grok-cli"
x-authenticateresponse = "authenticate-response"

With this in place, requests bill to your Grok subscription sign-in.

xAI API billing

To use a pay-as-you-go xAI API key instead, remove the subscription blocks and add this custom provider. Paste your key from console.x.ai into api_key, or use env_key = "XAI_API_KEY". Sleev sends the key per request and never stores it.

[model_providers.sleev-xai]
base_url = "http://127.0.0.1:17321/v1"
api_backend = "responses"
api_key = "<your xai api key here>"

[model_providers.sleev-xai.extra_headers]
sleev-harness = "grok-build"
sleev-provider = "xai"

Reference the provider from each model you want routed through Sleev:

[model."grok-4.6"]
model_provider = "sleev-xai"

Note: Sleev serves Grok Build on the Responses API only. Do not set api_backend to "messages" or "chat_completions".