well_upload_document

io.github.WellApp-ai/well-mcp · Verify this server

Upload a document (invoice, receipt, statement) into the workspace by sending its bytes as base64. ⚠️ THIS IS A WIDGET'S WRITE, NOT YOURS. The card's drop zone reads the file the person dropped or chose, encodes it, and calls this tool itself. Do NOT call it: a model holds no file, so a call made from a conversation can only carry bytes nobody supplied. When a person says they have the invoice, point them at the drop zone on the gap card. Send `content_base64` WITHOUT a data-URI prefix — the raw base64 only, no `data:application/pdf;base64,` header. Accepted content: PDF, JPEG, PNG, GIF, HEIC, HEIF, AVIF, WEBP, TIFF, plain text, CSV, XML. The bytes are checked against the declared `mime_type` (file signature, not just the claim), so a PNG announced as a PDF is refused. Size ceiling: 5 MB of file (before base64). A larger file is refused with its actual size — upload it through the web app instead, which accepts up to 15 MB. Pass `source_transaction_id` to anchor the document to the bank transaction it pays. That is what makes a dropped invoice land on the right line instead of in a general inbox. Well extracts the document after upload; the extraction is asynchronous and this call returns as soon as the file is stored. A file already in the workspace is deduplicated by content and returns the existing document rather than a copy.