Convert PDF forms to fillable documents, auto-fill from data, verify, and send by fax
Emboss turns static PDF forms into fillable documents. It can populate forms from your data or documents, validate completed forms, and send them via fax. Useful for processing applications, contracts, and official paperwork.
Try asking Muse: "Fill out and fax my insurance claim form using data from my recent medical records"
Source: Found in the official MCP Registry (io.github.edwinorange/emboss) · First listed September 25, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 1 h ago.
What Muse can see: You sign in to your own account with it, so Muse can reach what that account allows. Read what it asks for before you agree.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
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Emboss is not in Muse's Connectors list yet, and it needs you to sign in with your Emboss account. Apps that need this kind of sign-in usually cannot be used from a Muse chat yet. Follow it here and we will tell you when it reaches Muse.
https://api.getemboss.ai/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Emboss is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://api.getemboss.ai/mcpResponse time at the last check: 176ms. Worked in 99.1% of checks over 30 days.
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
list_formsForms in the user's Emboss library. state: ready (default), processing, failed, or all. Paginate with cursor.get_formStatus of one form. When ready, returns every field (id, label, kind, options, required) and a download link for the fillable PDF.find_formFind a blank government form in the Emboss library by name or number, ready to fill. Search the Emboss library of blank government forms by name, number, alias or place (w9, W-9, form w 9 and taxpayer identification all find the same form). When a form belongs to a state or countget_usageThis month's usage and how many free operations remain, plus the billing page link. It also says whether a payment method is on file (payment_method_on_file) and whether the account can send a fax today (fax_ready). Faxes need a payment method: check fax_ready before send_fax.create_formTurn a flat or scanned PDF form into a fillable PDF with detected fields. Upload a PDF (pdf_url: public https link, or pdf_base64) and detect its fields. Returns when detection finishes (usually under two minutes). Give library=<slug> from find_form to start from a form Emboss aldelete_formPermanently removes a form and its PDFs from the user's library. Pass dry_run=true to rehearse this call without doing it: nothing is stored, charged or sent, and no AI is used. The answer says whether the real call would succeed or be refused, what it would cost, and what a rehefill_formFill a PDF form from structured data such as JSON or key-value answers. Fill a ready form with values keyed by field id or field label. Checkboxes take yes or no; choice fields need one of their options. To lock the filled PDF, call flatten_pdf with its artifact_id; fill_form itsfill_form_from_contextFill a PDF form using facts found in supporting documents. Emboss reads the answers out of context_text and/or context_urls (public https links to PDFs, Word, spreadsheets, images, or text) and fills the form. Give form_id for a form already in the library, or pdf_url/pdf_base64 prepare_formPrepare a form from documents: a proposal of every answer with its source, what is missing, and where documents disagree, before writing, plus attachments for a package. Same inputs as fill_form_from_context (form_id for a form already in the library, or pdf_url/pdf_base64 for a get_jobStatus of a fill_form_from_context, prepare_form, or commit_proposal job. When ready, returns the download link, how many fields were filled, and for a commit, the result, receipt_url and, when one was asked for, package_url.suggest_mappingPropose which spreadsheet columns fill which PDF form fields. Given a CSV (csv_text or csv_url), proposes which column fills which field. Only the header row matters. Billed as one context fill (5 free each month). Pass dry_run=true to rehearse this call without doing it: nothingfill_batchFill one copy of a PDF form for every row of a spreadsheet. Fill a form for every row of a CSV (csv_text or csv_url, up to 1000 rows). mapping is {column: field_id}; omit it to use the suggested mapping. If mapping is omitted, suggest_mapping runs first and is billed as one conteget_batchProgress of a fill_batch run with a download link per finished row (100 at a time; pass next_cursor as cursor for the next 100) and a zip link when done.commit_proposalWrite or confirm the answers, render the form with text that fits, check it, and return the PDF with a report and a receipt, or one submission package. Give the proposal_id from prepare_form; confirm is a list of field ids whose proposed value is accepted as it is (the ids get_prget_proposalPrepare a form from documents: a proposal of every answer with its source, what is missing, and where documents disagree, before writing, plus attachments for a package. Read a proposal by its proposal_id: every field's state, its candidate values with evidence, and the questionsverify_formCheck a filled form: required fields, allowed options, consistent choices, text that fits, empty signature boxes; returns complete, review required or incomplete. Give a form_id and the filled PDF (pdf_url: public https link, or pdf_base64). Billed as one verify; the first 5 eachread_formRead the values out of a filled PDF form, labelled by field, with a completeness verdict when the form is known. Give the filled PDF (pdf_url: public https link, or pdf_base64) and, when you know it, form_id. Returns every form box in the file with its value and whether it is filadd_attachmentPrepare a form from documents: a proposal of every answer with its source, what is missing, and where documents disagree, before writing, plus attachments for a package. Attach one document (file_url: public https link, or file_base64) to a proposal from prepare_form. PDF, PNG ansend_faxSend a PDF to a fax number and track delivery, priced per transmitted page. Give a destination in E.164 form (for example +15025551212; US, Canadian and Mexican numbers only) and the PDF: an artifact_id from any earlier result, a job_id from fill_form_from_context or commit_propoget_faxDelivery status and receipt of a send_fax job. status is queued, working, delivered, failed or expired; keep checking about every 20 seconds until it is delivered, failed or expired. A busy, unanswered or dropped call is retried automatically up to three more times over about 17 compose_pdfFree. Build one PDF from pages of several artifacts, in the order and rotation you name. Build one PDF from several artifacts: sources is a list of {artifact_id, pages, rotate}; pages is a selection like 1-3,7 (omit for every page), rotate is 90, 180 or 270. Returns the new artifmerge_pdfFree. Join whole PDFs into one file in the order given. Join whole PDFs in order: sources is a list of {artifact_id}. Returns the new artifact_id and a download_url (a link that works for about an hour). For page selections use compose_pdf.extract_pagesFree. Keep only the pages you name from a PDF, in the order you name them. Keep only the pages named in pages (1-based, like 2,5-9, repeats and any order allowed) from artifact_id. Returns the new artifact_id and a download_url (a link that works for about an hour).delete_pagesFree. Remove the pages you name from a PDF and keep the rest in order. Remove the pages named in pages (1-based, like 1-2,17) from artifact_id; every other page stays in order. Returns the new artifact_id and a download_url (a link that works for about an hour).reorder_pagesFree. Put a PDF's pages in a new order you give, every page exactly once. Reorder artifact_id's pages: order lists every page number exactly once, in the new order. Returns the new artifact_id and a download_url (a link that works for about an hour).rotate_pagesFree. Rotate the pages you name by 90, 180 or 270 degrees. Rotate pages of artifact_id: rotations is a list of {pages, degrees} with degrees 90, 180 or 270, added clockwise to each page's current rotation. Returns the new artifact_id and a download_url (a link that works for abouinspect_pdfFree. Report a PDF's structure: page count, page sizes and rotations, encryption, form fields, annotations. Structural facts about artifact_id: page count, page sizes and rotations, whether it is encrypted, has form fields, annotations, outlines, embedded files or JavaScript. No flatten_pdfFree. Lock a filled form: draw every field's value and every comment into the page so nothing can be edited. Lock artifact_id, usually the filled PDF from fill_form: every field's value, checkbox and comment becomes part of the page, no fields stay editable, links keep working, ahttps://api.getemboss.ai/mcpEmboss is not in Muse's Connectors list yet, and it needs you to sign in with your Emboss account. Apps that need this kind of sign-in usually cannot be used from a Muse chat yet. Follow it here and we will tell you when it reaches Muse.
At the last check (November 13, 2026, 13:15 UTC) the endpoint was working, answering in 176ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
It was screened on September 25, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
It exposes 28 tools, including list_forms, get_form, find_form, get_usage. For example, you could ask Muse: "Fill out and fax my insurance claim form using data from my recent medical records"
This listing was added from public sources (Found in the official MCP Registry (io.github.edwinorange/emboss)). If you build Emboss, claim it to correct the details and get your badge.
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