| What it does | E-signature API for AI agents and developers to send legally binding contracts via MCP server, REST API or CLI
| Sign docs and PDFs online with legally binding electronic signatures
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| Stage | Not given
| MVP
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| Founded | Not given
| 2026
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| Based in | Not given
| Not given
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| Pricing model | Paid
| Freemium
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| Pricing | $0.25 per contract sent; $0 monthly fee; 20 free contracts to start
| Free: 3 documents/month. Bronze: $4.99/month or $39.99/year (25 documents). Silver: $9.99/month or $89.99/year (unlimited). Gold: $19.99/month or $179.99/year (unlimited, up to 5 senders).
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| Key features | - Markdown and Word document templates with variables
- MCP server with twelve tools for template and contract management
- REST API with JSON over HTTPS
- Test mode with no charge
- Signed webhooks for contract events
- Audit log with IP address, device and timestamp
- Custom branding on signing pages and documents
- Gilberto AI writing assistant for template drafting
- No per-signer or per-seat charges
- CLI for contract operations
| - Upload Word (.docx, .doc, .odt, .rtf) and PDF files, up to 25 MB
- Drag-and-drop signature fields with initials, dates, text, checkboxes and dropdowns
- Signers sign without creating an account
- Full audit trail with timestamps, IP addresses and device details
- Certificate of completion on every signed PDF
- SHA-256 fingerprint verification on public verify page
- Reusable templates with predefined fields and signer roles
- Bulk send to multiple signers from a list
- Web forms for waivers, sign-ups and consent forms
- REST API and webhooks for developers
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| What makes it different | - Pay per contract sent, not per month or per seat
- No credit card required to start, 20 free contracts included
- Integrated with official MCP registry for AI agent use
- Lowest published API pricing compared to DocuSign, Dropbox Sign, and others
| - Signers never need an account to sign
- Simple pricing readable in five seconds with no document or envelope limits on paid plans
- Every plan includes full audit trail and SHA-256 fingerprint, even the free tier
- Converts Word documents to PDF on the server without requiring manual export
- Independent product focused on everyday agreements, not enterprise features
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ▼ −1 (down) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 2 | 2 |
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| Citation Flow (Majestic) | 29 | 16 |
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| Referring domains (Majestic) | 48 | 7 |
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APISign
eSignSimple