Who it is for
Small teams that draft their own contracts and need them signed shortly after.
Sign.com
Draft agreements and prepare them for signature
Overview
What Sign.com does
Sign.com is an electronic signature service from Smallpdf AG. This app writes the document first: agreements, contracts, and similar paperwork drafted from a prompt, or built from HTML the requester supplies.
The draft is then converted into a PDF set up for signing and opened in Sign.com itself. Collecting signatures, adding and managing signers, and closing out the finished file happen on that side rather than in the chat.
The sample prompt covers both halves in one instruction: write an offer letter for a named person and get it ready to sign.
What stands out
Drafting and signature preparation are one step, with raw HTML accepted as an input format.
Availability
Where Sign.com is listed
Sign.com is listed in the ChatGPT apps directory only. Smallpdf AG has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
In the ChatGPT apps directory
- Developer
- Smallpdf AG
- Filed under
- Productivity
- Listed since
- June 2026
- Authentication
- Authenticates when installed
- Website
- sign.com
- Policies published
- Privacy policy · Terms of service
- Official listing
- Open in ChatGPT
- Snapshot
- August 2026
Example prompts from the listing
- Create an employment offer letter for Jane Doe and prepare it for signing.
Nearby
Other Productivity connectors
DocHub
Create, fill and route documents for signature through DocHub
Claude
Jotform Sign
Generate and send documents for e-signature
Claude · ChatGPT
PandaDoc
Draft agreements and send them for e-signature
Claude · ChatGPT
DocuSeal
Create, send and track e-signature documents
Claude · ChatGPT
Teamwork.com
Sync Teamwork projects and tasks into Codex
Claude · ChatGPT
A.I. Slides by Brightdeck
Presentation generation with PowerPoint compatible output
ChatGPT
This is an independent catalogue entry compiled by Node8 from Sign.com's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Smallpdf AG, and inclusion here is not an endorsement.
Want your company reachable inside ChatGPT and Claude?
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.