# SignatureAPI (ChatGPT App)

> Send documents to sign

- Type: app
- Publisher: Superposition Labs, Inc. (official)
- Categories: Business, Writing
- Website: https://chatgpt.com/plugins/plugin_asdk_app_6a22fd04115c81919308bc2d873a1df9
- Open in ChatGPT: https://chatgpt.com/plugins/plugin_asdk_app_6a22fd04115c81919308bc2d873a1df9
- Version: 1.0.0
- Listed: 2026-10-04

## About

SignatureAPI helps users create e-signature envelopes, upload documents from ChatGPT, inspect envelope status, cancel in-progress envelopes, delete final envelopes, and search SignatureAPI documentation before building requests.

## How to use

1. **Add it in ChatGPT** Open SignatureAPI in ChatGPT's Plugin directory (button above), select + to add it and sign in if asked.

2. **Use it in a chat** Type @ in the composer and pick SignatureAPI, or start your message with its name. ChatGPT may also suggest it when it fits what you ask.

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Source: https://chatgptplugins.directory/apps/signatureapi · Index: https://chatgptplugins.directory/llms.txt · Independent and community-run. Not affiliated with or endorsed by OpenAI. ChatGPT is a trademark of OpenAI.