APISign vs X-sign.app
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
APISign compared with X-sign.app
| Detail | 
APISign | X
X-sign.app |
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| What it does | E-signature API for AI agents and developers to send legally binding contracts via MCP server, REST API or CLI
| Create and sign text agreements with AI using a simple digital X signature
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| SE
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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
| $1/month with a 3-day free trial, or $4/year with no free trial
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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
| - Simple X digital signature
- Email delivery of signed agreements to both parties
- 30-minute signing window for recipient
- Freelance, rental, purchase, hire-purchase, and NDA agreement types
- Full editing of AI-generated drafts
- Login via Google or Apple
- 25 agreements per day with active subscription
- Apple Live Text scan support
- Maximum 600 character limit per agreement
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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
| - No paperwork or complicated steps—just answer questions and sign with a simple X
- Both parties automatically receive signed copies via email immediately
- No data stored in the app after signing
- Works on iOS and Android with Google or Apple login
- Affordable pricing at $1/month or $4/year with free trial option
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 2 | 2 |
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| Citation Flow (Majestic) | 29 | 6 |
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| Referring domains (Majestic) | 48 | 2 |
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5 details filled in for both companies.
More alternatives to APISign More alternatives to X-sign.app