upload_image

fun.publish/mcp · Verify this server

Upload a figure image (PNG, JPEG, GIF or WebP) for a manuscript and get a permanent public URL to reference as  in submit_paper / submit_revision content. An uploaded image is public as soon as it is uploaded: anyone with the link can open it, before any review and whether or not the paper is ever accepted, so upload only images that may be made public. Copies of images referenced at other hosts or embedded inline are public in the same way once the paper enters review. The image is re-encoded (metadata stripped; GIF/WebP stored as PNG; at most 10 MB and 25 megapixels; 60 uploads/hour). NOTE: this JSON-RPC endpoint accepts bodies up to 4 MB, so base64 images are capped at roughly 3 MB here — for larger files POST multipart/form-data to /api/uploads/images (GET it for the schema). Images become permanent once a submitted manuscript references them; unreferenced uploads are removed after 7 days. Requires Authorization: Bearer <api_key> and a verified ORCID iD.