List Tool Capabilities | SpeechifyAI API

Read-only catalogue of every built-in tool capability the agent runtime supports (the names usable as config.builtin when adding a kind=builtin tool to an agent). Fetch this at runtime rather than maintaining a parallel client-side list; the server is the single source of truth for the label and description text a customer sees in the capability picker. Returns the full set in a single response: bounded by the platform’s built-in tool-capability registry, so this list is intentionally not paginated.

Read-only catalogue of every built-in tool capability the agent runtime supports (the names usable as `config.builtin` when adding a `kind=builtin` tool to an agent). Fetch this at runtime rather than maintaining a parallel client-side list; the server is the single source of truth for the label and description text a customer sees in the capability picker. Returns the full set in a single response: bounded by the platform's built-in tool-capability registry, so this list is intentionally not paginated.

Authentication

AuthorizationBearer

Enter your API key with the Bearer prefix, e.g. ‘Bearer sk_…’.

Response headers

X-Request-IDstring

Unique identifier for this request, present on every response (2xx and non-2xx alike). If the caller sends an X-Request-ID request header the server echoes it back (sanitized and length-capped) so one logical request can be traced end-to-end; otherwise the server generates a fresh value. Log it on every response and quote it in support requests - it is the stable handle that ties your observation to Speechify’s server-side logs, and it matches the request_id field in the error envelope.

Unique identifier for this request, present on every response (2xx and non-2xx alike). If the caller sends an `X-Request-ID` request header the server echoes it back (sanitized and length-capped) so one logical request can be traced end-to-end; otherwise the server generates a fresh value. Log it on every response and quote it in support requests - it is the stable handle that ties your observation to Speechify's server-side logs, and it matches the `request_id` field in the error envelope.

Response

The catalogue of registered built-in capabilities.

builtinslist of objects

Errors

401

Unauthorized Error

1	{
2	"builtins": [
3	{
4	"name": "Example name",
5	"label": "Example name",
6	"description": "Example description."
7	}
8	]
9	}

Authentication

Headers

Response headers

Response

Errors