Certyneo vs APISign
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Certyneo compared with APISign
| Detail | 
Certyneo | 
APISign |
|---|
| What it does | Free, legally binding electronic signature with eIDAS compliance
| E-signature API for AI agents and developers to send legally binding contracts via MCP server, REST API or CLI
|
|---|
| Stage | Startup
| Not given
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| Founded | 2026
| Not given
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| Based in | FR
| Not given
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| Pricing model | Freemium
| Paid
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| Pricing | Free: 0 €/month (5 envelopes for 14 days, then 2/month); Personal: 9 €/month (25 envelopes/month); Standard: 19 €/month (100 envelopes/month); Business: 39 €/month (300 envelopes/month); Business Pro: 99 €/month (1,000 envelopes/month). Qualified eIDAS signature available at 9.90 €/signature on paid
| $0.25 per contract sent; $0 monthly fee; 20 free contracts to start
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| Key features | - Legally binding signatures at SES, AES and QES levels compliant with eIDAS regulation
- 10-year encrypted archiving of all signed documents
- AI-powered contract generator with automatic jurisdiction adaptation
| - 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
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| What makes it different | - Entirely hosted in the European Union, safe from extraterritorial reach of US Cloud Act and FISA
- Free plan indefinitely usable with eIDAS SES-level compliance included
- 14-day refund policy without justification on paid plans
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 56 ▼ −1 (down) since last check | 1 ● no change since last check |
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| Trust Flow (Majestic) | 29 | 2 |
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| Citation Flow (Majestic) | 39 | 29 |
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| Referring domains (Majestic) | 1028 | 48 |
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5 details filled in for both companies.
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