Assinafy

io.github.assinafy/mcp-server

Send documents for legally valid e-signature in Brazil, track signers and download signed files.

Yes, your AI can use this right now.Answered a live MCP handshake in 359 ms with no sign-in needed and exposes 27 tools.

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URL: https://mcp.assinafy.com.br/mcp

27 tools, verified live

Pulled straight from the server with tools/list on 2026-10-17.
assinafy_create_assignment

Request signatures on a document. Use `method: virtual` to sign without input fields, or `method: collect` to place input fields on specific pages. For **virtual**, the document may be in `uploaded`, `metadata_processing` or `metadata_ready`; it is promoted to `pending_signature` automatically once metadata processing completes. For **collect**, the document must be in `metadata_ready` (fields re

assinafy_create_document_from_template

Generate a document from a saved template and invite one signer per role, by signer ID or full name and email. Find roles with assinafy_list_templates and validate editor_fields values with assinafy_validate_fields first. This sends invitations and can consume credits.

assinafy_create_signer

Create a signer in the workspace. Search with assinafy_list_signers first to avoid duplicates. Sends no invitation.

assinafy_delete_documentcan modify

Delete a document only when the user's instruction explicitly authorizes deletion. Inspect its current state first; Assinafy enforces which documents may be deleted.

assinafy_download_documentread-only

Download a document artifact as base64: original (default), certificated, certificate-page, pades or bundle. Download the signed PDF only when the document is certificated and the artifact is listed.

assinafy_download_document_pageread-only

Download the rendered image of a specific document page. Use a page_id returned by assinafy_get_document. Returns base64.

assinafy_get_documentread-only

Inspect one known document: status, assignment, signers with their progress, pages and available artifacts. Read it before retrying a send or following up. 100% signed does not mean certification is finished; the signed PDF is ready at status certificated.

assinafy_get_fieldread-only

Retrieve a single field definition.

assinafy_get_signerread-only

Retrieve a signer's information.

assinafy_get_templateread-only

Get one saved template with its roles and field placements.

assinafy_list_document_activitiesread-only

List the activities recorded for a document. Each entry carries an event-specific `payload` snapshot (keys vary per event) and the request `origin` (`ip`, `user-agent`). Use it to explain what happened to a document and when.

assinafy_list_documentsread-only

Search workspace documents by name or status, with pagination. Use it to find a document the user names before inspecting or following up on it.

assinafy_list_fieldsread-only

List the field definitions of a workspace. When `include_standard` is enabled, records of type `signature`, `initial` and `signatureDate` are also returned. Match definitions to template placement field_id and ask about ambiguous names.

assinafy_list_signersread-only

List the signers of a workspace. Use it to resolve a recipient to a signer ID; ask the user about ambiguous matches before sending.

assinafy_list_templatesread-only

List saved templates with their signer roles, pages and field placements (field_id). Template authoring is done in Assinafy.

assinafy_list_whatsapp_notificationsread-only

List all WhatsApp notification messages sent for an assignment. The response includes the rendered template text split into `header`, `body` and `buttons` — exactly what the signer would see. In sandbox/stage, WhatsApp messages are simulated (no real delivery) and button URLs include access/verification codes you can use to simulate the signing flow. Treat returned signing links and verification c

assinafy_place_fieldsread-only

Open a visual editor to place signature, initials, date and input fields on a metadata_ready document, then send it with method collect. Takes the assinafy_create_assignment arguments except method and entries. Sends nothing by itself: in apps-capable hosts the user places fields and presses Send; other clients get page sizes and field IDs as text to build entries.

assinafy_rename_documentcan modify

Update a document's name. Only allowed before any assignment is created (i.e. while the document is in `uploaded` or `metadata_ready` status and has no signers yet); once the signature process has started or the document is certificated, the name is locked. The name is normalized: diacritics are removed and unsupported characters are replaced with dashes.

assinafy_resend_notification

Send one reminder to a pending signer in the assignment's active step, after confirming with assinafy_get_document that they have not signed. May consume notification credits; never repeat a reminder only because progress is unchanged.

assinafy_review_signature_requestread-only

Preview an assinafy_create_assignment call without sending anything: same arguments, checked against the document and signers. Use it when the user wants to review before sending. Apps-capable hosts render a card whose Send button performs the request; other clients get the summary as text, and the request is sent only after the user confirms.

assinafy_send_pdf_for_signature

Upload a new PDF, wait for processing and invite signers by full name and email, using Email verification and notification. This sends invitations and uses plan allowance: use only recipients the user authorized. After a partial failure, inspect the retained document ID and continue with assinafy_create_assignment instead of uploading again.

assinafy_set_assignment_expiration

Change when an existing signature request expires, using an RFC 3339 timestamp. Assinafy may refuse for requests that already expired.

assinafy_show_documentread-only

Show a status card for one known document: its status, who has signed, who is still pending and when it expires. Apps-capable hosts render it with a reminder button; other clients get the same summary as text. Resolve the document with assinafy_list_documents first.

assinafy_update_signercan modify

Update a signer's information. **Verification integrity:** `email` / `whatsapp_phone_number` cannot be changed while the signer has verified that channel on an in-flight (not yet certificated) document — the response is `400` naming the offending document(s). Already-certificated documents do not block updates. Changing a channel that has *unverified* in-flight requests rotates their access/verif

assinafy_upload_document

Upload a PDF without sending invitations and return its document ID. Use it when the user wants to prepare a document now and send it later with assinafy_create_assignment. Never upload again when a document ID is already known.

assinafy_validate_fieldsread-only

Validate one or more input values against existing field definitions without creating a document or requesting signatures. Supply field/value pairs in values; the server sends the documented JSON array. Check each result's success before requesting signatures.

assinafy_verify_documentread-only

Verify a signed document using its actual Assinafy SHA-1 signature hash. Public lookup; requires no workspace connection and sends no credential upstream.

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