BaseClient

Retries and concurrency for SSE/command HTTP. When omitted, requests use raw fetch with no automatic retries (same as constructing ProtocolSseTransportAdapter without this option).

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.