Delete a media asset
Removes the stored original, the generated knowledge document and image variants, the asset record, and regenerates the bot’s media manifest.
Refused while a flow still embeds the asset (409 ASSET_EMBEDDED) — deleting it would leave the published flow pointing at bytes that no longer exist. Remove it from the flow first. Code references are not a blocker: an unresolved slug degrades to a missing id at runtime rather than breaking a flow.
Naturally idempotent by slug: a second call answers 404 ASSET_NOT_FOUND.
Required scope: media:write
Authorizations
Project API key issued in Settings → API keys. Send it as Authorization: Bearer pk_live_….
Headers
Target project id, for an MCP OAuth bearer (mcp_at_…) attached to more than one project — get ids from GET /v1/projects. Matched case-insensitively.
Omit it and a READ falls back to the connection's default project; a mutation (any non-GET) on a connection with 2+ projects is rejected with 400 project_required — a write is never defaulted to a guessed project. A connection with exactly one project never needs the header.
Scopes are checked against the SELECTED project only, never a union across the connection.
For a pk_ API key the header selects nothing — one key is one project's context — but it IS validated: omit it and the key's own project is used, send it and it must name that project, otherwise the call is rejected with 403 project_not_attached (a blank value is 400 invalid_project_header, as above).
Path Parameters
The asset's bot-facing slug — the key the runtime getMediaId / sendMedia helpers look it up by.
^[a-z0-9][a-z0-9-]{0,119}$