AssistantsClient

Base URL of the LangGraph API server.

Defaults to http://localhost:8123, unless the runtime provides a langgraph_api:url global override.

Headers applied to every request.

The configured API key, when present, is added as the x-api-key header after these defaults are initialized.

Hook for inspecting or mutating a request before it is sent.

Receives the resolved URL and prepared RequestInit; return the original init or a replacement object to continue the request.

Streaming protocol used by stream-capable endpoints.

Defaults to "legacy" for backwards compatibility.

Default timeout, in milliseconds, applied to client requests.

Per-request timeoutMs values override this default. Passing null at the request level disables the configured timeout for that request.

Count assistants matching filters.

Create a new assistant.

Delete an assistant.

Get an assistant by ID.

Get the JSON representation of the graph assigned to a runnable

Get the state and config schema of the graph assigned to a runnable

Get the schemas of an assistant by ID.

List all versions of an assistant.

List assistants.

Change the version of an assistant.

Update an assistant.