Integration · Documents

Connect Claude & ChatGPT to Modusign

Ask your AI which contracts are still waiting for a signature, who has not signed yet, or to send a document for signing in Modusign. It lists and reads documents with their status, participants, signing progress and history, and reads templates and labels. It can send documents for signature, remind signers, change the signing deadline, forward completed documents and cancel a request.

Connect Modusign free

Free plan, no credit card. Takes about a minute.

Try asking

“Which documents are still waiting for signatures?”
The AI lists documents with the status ONGOING and shows their participants and signing progress.
“Who has not signed the supplier agreement yet?”
It finds the document, reads its participants and signing progress, and tells you who is missing.
“Remind the remaining signers on the lease.”
It sends a reminder to the participants who have not signed the document yet.

What your AI can do

Signature requests

Send a document for signature with participants and signing order, remind signers, ask for a correction, change the deadline or cancel the request.

Status and history

List documents by status, read participants and signing progress, see the activity history and list attachments that signers uploaded.

Templates and labels

Read templates with their participant roles and fields, create labels, and add or remove labels on documents.

“Move the signing deadline on the NDA to next Friday.”
It changes the signing due date of the document while it is in progress.
“What has happened with the service contract?”
It reads the document's history: when it was sent, viewed, signed or rejected.
“Forward the signed agreement to our accountant.”
It forwards the completed document to the contact you give, who receives it by email.

54 tools for Modusign

These tools are switched on when you connect. You can switch any of them off, or require your approval before it runs.

add_labels_to_documentChanges dataAttach labels to a document for organizing. Pass document_id and label_ids.
cancel_documentDeletesCancel an in-progress signature request by document_id with a message explaining why. Participants can no longer sign; this cannot be undone.
cancel_document_modificationDeletesCancel a document (document id). Destructive action; may require approval. API summary: 내용 수정 취소.
change_signing_due_dateVisible to othersChange the signing deadline of an in-progress document. Pass document_id and the new datetime.
create_documentChanges dataCreate a document from a file and send it for signature. Pass title, file and participants (each with name, signingOrder and signingMethod). Participants are notified immediately.
create_document_document_controller_create_document_with_templatChanges dataCreate a new document. Required: template id or document. Search documents first to avoid duplicates. API summary: 템플릿으로 서명 요청.
create_document_start_modificationChanges dataCreate a new start modification for a document. API summary: 내용 수정 시작.
create_embedded_draftChanges dataCreate a new embedded draft. Required: title. API summary: 임베디드 초안 생성.
create_embedded_draft_with_templateChanges dataCreate a new embedded draft. Required: template id. API summary: 템플릿으로 임베디드 초안 생성.
create_labelChanges dataCreate a label with a name and optional description.
create_subscribeChanges dataCreate a new subscribe. API summary: 요금제 구독 중지 철회.
create_subscriptionChanges dataCreate a new subscription. Required: client id or client secret. API summary: 요금제 즉시 종료.
create_templateChanges dataCreate a new template. Required: title, file, participants or requester editable. Search templates first to avoid duplicates. API summary: 템플릿 생성.
create_unsubscribeChanges dataCreate a new unsubscribe. API summary: 요금제 구독 중지.
create_userChanges dataCreate a new user. Required: client id, client secret or user. API summary: 회원가입 요청.
create_user_subscriptionChanges dataCreate a new subscription for a user. Required: client id, client secret or plan id. API summary: 요금제 구독 시작.
create_webhookDeletesCreate a new webhook. Required: name or url. Destructive action; may require approval. API summary: 웹훅 생성.
delete_labelDeletesPermanently delete a label by label id. Destructive action; may require approval. API summary: 라벨 삭제.
delete_templatesMoves moneyPermanently delete a template. Financial or irreversible action; may require approval. API summary: 템플릿 삭제.
delete_webhookDeletesPermanently delete a webhook by webhook id. Destructive action; may require approval. API summary: 웹훅 삭제.
forward_documentChanges dataForward a completed document to other people. Pass document_id and contacts; they receive it by email.
get_current_userGet the connected Modusign user and account details.
get_documentGet one document by document_id, with its title, status, participants and signing progress.
get_document_historyGet the activity history of a document by document_id (sent, viewed, signed, rejected and so on).
get_templateGet one template by template_id, including its participant roles and fields.
get_template_revisionGet one revision for a template by revision id. API summary: 템플릿 Revision 단건 조회.
get_webhookGet one webhook by webhook id. API summary: 웹훅 상세 조회.
list_document_attachmentsList the attachments that participants uploaded to a document, by document_id.
list_document_participant_fieldsList participant fields for a document. API summary: 서명자 입력란 조회.
list_document_requester_inputsList requester inputs for a document. API summary: 요청자 입력 조회.
list_documentsList signature documents, newest first by default. Filter with filter, e.g. status eq 'COMPLETED' (statuses include ONGOING, COMPLETED, ABORTED, DRAFT); page with limit and offset.
list_documents_document_controller_get_document_embedded_viewList documents for a document. Optional filters: redirect url. API summary: 임베디드 문서보기 url 조회.
list_documents_document_controller_get_modificationList documents for a document. API summary: 내용 수정 중 문서 데이터 조회.
list_labelsList the labels used to organize documents.
list_participant_embedded_viewsList embedded views for a participant. Optional filters: redirect url. API summary: 임베디드 서명자의 보안링크 조회.
list_subscriptionsList subscriptions. API summary: 구독 정보 조회.
list_template_embedded_viewsList embedded views for a template. Optional filters: redirect url. API summary: 임베디드 템플릿보기 url 조회.
list_template_revisionsList revisions for a template. Results are paginated. API summary: 템플릿 Revision 목록 조회.
list_templatesList your document templates, with limit, offset and an optional filter.
list_usagesList usages. Optional filters: from or to. API summary: 사용량 조회.
list_webhooksList webhooks. Results are paginated. API summary: 웹훅 목록 조회.
remind_signersChanges dataSend a reminder to participants who have not yet signed a document, by document_id. This sends a message to them.
remove_label_from_documentDeletesRemove one label from a document. Pass document_id and, as document_id_2, the label ID. The document itself is not deleted.
request_signing_correctionChanges dataAsk one participant to redo or correct their part of a document. Pass document_id, participant_id and a message; the participant is notified.
restore_revisionChanges dataRestore a revision (revision id). API summary: 선택한 Revision 내용으로 템플릿 복원.
submit_documentVisible to othersMerge a document. Has effects visible outside this system. API summary: 문서 파일 병합.
submit_document_modificationVisible to othersComplete a document (document id). Has effects visible outside this system. API summary: 내용 수정 완료.
submit_templateVisible to othersMerge a template. Has effects visible outside this system. API summary: 템플릿/문서 병합.
submit_userVisible to othersVerify a user. Has effects visible outside this system. API summary: 회원가입 여부 확인.
update_documentsVisible to othersUpdate an existing document identified by document id. Has effects visible outside this system. API summary: 문서 메타데이터 변경.
update_documents_document_controller_patch_modificationVisible to othersUpdate an existing document identified by document id. Only the fields you pass are changed. Has effects visible outside this system. API summary: 내용 수정 중 문서 데이터 변경.
update_labelChanges dataUpdate an existing label identified by label id. API summary: 라벨 수정.
update_template_metadataVisible to othersUpdate an existing metadata identified by template id. Has effects visible outside this system. API summary: 템플릿 메타데이터 변경.
update_webhookDeletesUpdate an existing webhook identified by webhook id. Destructive action; may require approval. API summary: 웹훅 수정.

Set up in three steps

1
Pick the app
Create a free HeyMyApps account and choose Modusign from the app list.
2
Paste your key
Enter your Modusign account email and an API key. In Modusign go to Settings > Workspace management > API KEY and add an API key. The API menu only appears once Modusign support has enabled API access for you.
3
Add the link to your AI
You get a personal MCP link. Add it to Claude, ChatGPT or Cursor:
1. Click your name, then Settings › Connectors › Add custom connector.
2. Paste your link as the Remote MCP server URL.
3. Switch it on from the + menu in a chat.

Questions

What can the AI do in Modusign?

It can list and read documents with their status, participants, signing progress, history and uploaded attachments, and read templates, labels and your user details. It can send a document for signature, remind signers, ask a participant for a correction, change the signing deadline, forward a completed document, cancel a signature request, and create labels and add or remove them on documents.

Does the AI see my Modusign credentials?

No. Your Modusign account email and API key are encrypted at rest and never shown to the AI. After you save them, they are not shown again, not even to you. The AI only sees the results of the tools it calls.

Can I control what the AI is allowed to do?

Yes. You choose which tools are switched on, so you can start by only tracking status. Sending documents, reminders and forwards reach real people, and cancelling a signature request cannot be undone. These can require your approval before they run. Every tool call is logged.

Does it work with ChatGPT?

Yes. In ChatGPT go to Settings › Apps & Connectors › Advanced and turn on Developer mode, then add your HeyMyApps link. Developer mode needs a paid ChatGPT plan: Plus, Pro, Business or Enterprise. The same link also works in Claude (Settings › Connectors › Add custom connector), Cursor and other MCP clients.

What does it cost?

HeyMyApps has a free plan with no credit card required. Paid plans bill per completed task. You also need your own Modusign account with API access enabled.

Why can't I find the API KEY menu in Modusign?

The API menu only appears once Modusign support has enabled API access for you. After that you find it under Settings > Workspace management > API KEY, where you add a key. You then enter the key and your Modusign account email in HeyMyApps.