Upload and persist a Knowledge library cover image

POST/v1/knowledge/{libraryId}/cover

Normalizes the image to an optimized WebP asset in the deployment's durable artifact store and atomically promotes it to the library's first-class cover field.

How to call this endpoint

Every ACP API request uses bearer authentication. The examples here show the actual request path, auth header, and body shape that the platform expects.

Path, query, and header parameters

These parameters control which ACP object the endpoint acts on and how the request is processed.

Path parameters
NameLocationTypeRequiredDescription
libraryIdpathstringYesKnowledge library ID
Query parameters
None.

Body schema

Content type: multipart/form-data · Required

FieldTypeRequiredDescription
filestringYesSupported image file (maximum 15 MB).
sourceupload | computerNo—
positionXnumberNo—
positionYnumberNo—
zoomnumberNo—
computerIdstringNo—
computerPathstringNo—

What the API returns

Each response code below includes the documented payload shape for the ACP API.

201Durable cover image saved and linked to the libraryapplication/json
FieldTypeRequiredDescription
libraryobjectYes—
library.idstringYesUnique identifier.
library.namestringYesHuman-readable name.
library.descriptionstringYesHuman-readable description.
library.homeDocumentIdstringYes—
library.creatorIdstringNo—
library.creatorUserIdstringNo—
library.creatorNamestringNo—
library.creatorEmailstringNo—
library.creatorAvatarUrlstringNo—
library.ownerIdstringNo—
library.ownerUserIdstringNo—
library.ownerNamestringNo—
library.ownerEmailstringNo—
library.ownerAvatarUrlstringNo—
library.currentVersionIdstringYes—
library.currentVersionNumberintegerYes—
library.publishedVersionIdstringNo—
library.coverobjectYes—
library.cover.schemaVersioncomputer_agents_knowledge_cover_v1Yes—
library.cover.typegradientYes—
library.cover.presetblueYes—
library.metadataobjectNoFree-form metadata object.
library.permissionSetobjectNo—
library.documentsobject[]No—
library.documents[].idstringYesUnique identifier.
library.documents[].libraryIdstringYes—
library.documents[].revisionIdstringYes—
library.documents[].currentRevisionIdstringNo—
library.documents[].parentDocumentIdstringNo—
library.documents[].slugstringNo—
library.documents[].sortOrderintegerNo—
library.documents[].archivedbooleanNo—
library.documents[].titlestringYesDisplay title.
library.documents[].namestringNoHuman-readable name.
library.documents[].summarystringNo—
library.documents[].descriptionstringNoHuman-readable description.
library.documents[].markdownstringYes—
library.documents[].contentstringNoRaw text content.
library.documents[].contentHashstringYes—
library.documents[].provenanceobjectNo—
library.documents[].createdByUserIdstringNo—
library.documents[].revisionCreatedByUserIdstringNo—
library.documents[].createdAtstringYesISO 8601 timestamp.
library.documents[].revisionCreatedAtstringNo—
library.documents[].updatedAtstringYesISO 8601 timestamp.
library.versionsobject[]No—
library.versions[].idstringYesUnique identifier.
library.versions[].numberintegerNo—
library.versions[].versionNumberintegerYes—
library.versions[].namestringNoHuman-readable name.
library.versions[].descriptionstringNoHuman-readable description.
library.versions[].statussaved | publishedYesCurrent lifecycle status.
library.versions[].fingerprintstringYes—
library.versions[].publishedAtstringNo—
library.versions[].createdAtstringYesISO 8601 timestamp.
library.versions[].updatedAtstringYesISO 8601 timestamp.
library.createdAtstringYesISO 8601 timestamp.
library.updatedAtstringYesISO 8601 timestamp.
400Missing or invalid image upload
None.
413Image exceeds the 15 MB upload limit
None.
Upload and persist a Knowledge library cover image
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Response 201
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