- Brand
- SignatureAPI
- Category
- Operations
- Primary Subcategory
- E-Signature & Contract Execution
Integration details
Description
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.
- Integration type
- Plugin
- Verification status
- Not applicable
- Platform
- ChatGPT
- Primary Subcategory
- E-Signature & Contract Execution
- Secondary Subcategories
- None listed
- Brand
- SignatureAPI
- Access
- Account required
- First tracked
- 2026-08-29
- Tool count
- 22
- Geography
- US
The Primary Subcategory used for this profile’s headline score.
Other Subcategories where the Integration is listed.
Your score is coming
ChatGPT now suggests Plugins on its own when they match a user's request.Your Plugin Discovery Score measures how often yours appears, and it will show here as soon as it’s ready.
What discovery looks like

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Competing in ChatGPT E-Signature & Contract Execution
View Category22 tools agents can invoke
SignatureAPI ChatGPT Plugin FAQ
How the directory, categories and Discoverability Score work.
Read the methodologyHow do I improve SignatureAPI's ChatGPT Plugin discoverability?
The levers are the listing surface agents actually read: names, descriptions, keywords, tool metadata, and registry health. Which lever matters depends on where discovery breaks, which is what continuous measurement shows.
What are SignatureAPI alternatives on ChatGPT?
As of 2026-10-13, SignatureAPI competes with Atlas, DocStudio, DocuSeal, Docusign, eSignatures.com, esigner.no, Formesign, Frondy and 7 more in ChatGPT E-Signature & Contract Execution, ranked by public Discoverability Score.
Where is this profile measured?
This profile uses the geography attached to the latest public registry snapshot: US. Locale tags are intentionally omitted.