curl -X POST https://api.okrapdf.com/v1/collections/col-40da068481cf4f248853507cba6be611/documents \ -H "Authorization: Bearer okra_YOUR_KEY" \ -H "Content-Type: application/json" \ -d '{"document_ids": ["doc-abc123", "doc-def456"]}'
Add one or more documents to an existing collection.
col-...
{ "ok": true, "added": 2 }