# SignatureAPI (signatureapi.com)

Sends documents for e-signature through an API, tracking signers and returning a sealed final file with an audit log.

- Atlas card: https://inite.ai/en/atlas/signatureapi.com
- Site: https://signatureapi.com
- For: Developers and SaaS teams adding e-signatures to their apps or workflows
- Categories: documents
- Use not measured/100 · alive 100/100

## Used for

- Send documents from templates for electronic signature
- Track signing activity and receive signature notifications
- Bundle multiple documents into one signing envelope

## Price

- from 25 USD/month (read 2026-10-18 on https://signatureapi.com/pricing)

## For developers

- API docs: https://signatureapi.com/docs/api/welcome
- MCP server: com.signatureapi/mcp (namespace; auth on 2026-10-18)
- Status page: https://signatureapi.com/status
- Read 2026-10-18

## MCP server, measured daily

Server: https://mcp.signatureapi.com/mcp, checked every day since 2026-10-19 (3 checks).

- Answered: measuring, 3 daily checks so far
- Median first answer: 263 ms
- Sign-in: OAuth (the client signs the user in)
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: hipaa, soc2, gdpr, ccpa
- Read 2026-10-18

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Source: INITE Atlas, https://inite.ai/en/atlas/signatureapi.com. JSON: https://inite.ai/api/atlas/signatureapi.com. MCP: https://inite.ai/api/mcp (atlas_lookup).