| Field | Type | Required | Description |
|---|---|---|---|
projectReference | String! | Yes | Project ID or slug. Requires a person’s credential; agent, run, and service-account callers are forbidden. |
query | String | No | Name filter applied after fetching public and private channels. |
limit | Int | No | Fetch up to this many public and this many private channels before query filtering. Range 1..200; omit/null defaults to 100. |