Gotoquill

Mistral Le Chat / Work setup

DEV preview · Updated 2 Nov 2026

Request a human signature on a PDF from Le Chat. Gotoquill opens a sealed signing link where you review the document and consent. Custom connector support is ready for account testing; it is not a directory listing.

Connector URL

Use the full HTTPS Streamable HTTP endpoint. For this DEV build, ask your operator for the Workers subdomain:

https://gotoquill-cloud-dev.<workers>.dev/mcp

The branded endpoint is https://mcp.gotoquill.com/mcp. This preview does not update that production service. Use the DEV endpoint to test version 0.3.26.

Add the custom connector

  1. As an administrator or individual account owner, open Connectors → + Add Connector → Custom MCP Connector.
  2. Name it Gotoquill and paste the DEV MCP URL. An optional description is “Request a human signature on a PDF.”
  3. Click Connect. Mistral detects OAuth 2.1 and uses dynamic client registration (DCR); complete the Gotoquill consent flow.
  4. Enable the connector in Le Chat / Work and check that open_signing_card and sign_in_chat appear. Keep signing actions on manual approval.

See Mistral’s custom connector guide. Account setup and OAuth require you to sign in personally.

Sign a PDF

  1. Provide a PDF the connector can access. For testing, use Gotoquill’s examples/sample_contract.pdf.
  2. Ask: “Request a signature from Dana Cohen on this PDF using Gotoquill.”
  3. Open the returned sealed signing link (sign_url). Review the document, position your signature, and explicitly consent before signing.
  4. Return to chat and ask Gotoquill to check the request’s status and provide the signed PDF. Save your own copy.

For an offline handoff, ask the assistant to request offline_file=true and save the returned offline_signing_html as a downloadable HTML file. Open that file locally, review and consent, then paste the compact response code back into chat. The assistant submits it with apply_signature_response and the original request ID. Share the file only with the intended signer; it contains the document and signing material.

Mistral has no documented MCP Apps signing widget. This setup uses a link or offline codes; an embedded signing card is not required.

Optional Studio Debugger

For a separately registered OAuth client in the Studio Debugger, the operator registers this exact callback:

https://console.mistral.ai/build/connectors/debugger/oauth-callback

Normal custom connectors supply their own callbacks through DCR. Studio’s app_return_url is a Mistral-side return destination, not a Gotoquill OAuth callback.

Directory and support

Mistral’s directory is curated; no public submission form was found in the reviewed documentation. Start with a custom connector. A directory conversation may follow usage and validation.

Need help? Email support@gotoquill.com. This DEV integration has not been tested inside a signed-in Mistral account.