APISign vs eSignly

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 eSignly
Detail	APISign	eSignly
What it does	E-signature API for AI agents and developers to send legally binding contracts via MCP server, REST API or CLI	Secure, simple, and legally binding eSignatures for document workflows
Stage	Not given	Established
Founded	Not given	2014
Based in	Not given	US
Pricing model	Paid	Freemium
Pricing	$0.25 per contract sent; $0 monthly fee; 20 free contracts to start	Free plan: $0/month with 3 documents per month and unlimited signatures. Professional: $10/user/month ($120/user/year). Business: $20/user/month ($240/user/year). Enterprise: $30/user/month ($360/user/year). Automatic volume discounts available: 3–5 seats 5%, 6–10 seats 10%, 11–25 seats 15%, 26–50 s
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	eSignature creation with draw, type, or image options Real-time document tracking and notifications Reusable document templates Bulk sending to multiple recipients In-person signing on mobile devices Advanced form fields including text, dates, checkboxes, dropdowns REST API with webhooks for workflow automation Detailed audit trail with certificate of completion Support for 18+ languages Secure cloud storage with encryption
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	Free plan with no credit card required AI Contract Intelligence for agreement summarization and analysis Transparent pricing with no hidden fees Seamless integrations with Google Drive, Dropbox, Salesforce, and Zapier
Community votes	0	0
DR (Domain Rating by Ahrefs)	1 −1 (down) since last check	35 +1 (up) since last check
Trust Flow (Majestic)	2	14
Citation Flow (Majestic)	29	35
Referring domains (Majestic)	48	331

5 details filled in for both companies.

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