🤖 AI Document Intelligence + Legally Binding Signing

AI Reviews Your Contracts – Then Signs Them Legally, in Minutes

Get AI-powered contract analysis (risk detection, clause explanation, summary) plus legally binding e-signatures. All in one platform. 50% cheaper than hiring lawyers.

Analyze Your First Contract Free See How AI Reviews Contracts
🤖 Powered by AI
⚡ 100% Risk Detection
🛡️ ESIGN Act & eIDAS Compliant
👥 Used by 500+ Legal Teams Businesses
Software_Services_Agreement_v3.pdf
⚡ AI Analysis Complete
⚠️ High Liability Risk Flagged Clause 8.2
Unlimited liability for indirect damages. AI Recommendation: Cap liability to 12 months of fees paid.
⚠️ Auto-Renewal Warning Clause 12.1
Requires 60-day written cancellation notice before annual renewal.
✓ Signature Fields Prepared ESIGN Compliant
2 Signer fields ready (Client & Contractor). Certified eIDAS & ESIGN Act digital seal applied.
Intelligent 5-Step Process

How AI Review & Signing Works

Transform contract review from days of legal back-and-forth into seconds of instant AI intelligence.

Step 01
📤

Upload Contract

Upload any PDF or DOCX agreement in one click.

Step 02
🤖

AI Analyzes

AI extracts clauses, flags risks, and summarizes in plain English.

Step 03
📊

Review Findings

Inspect risk scores, hidden liabilities, and clause breakdowns.

Step 04
🤝

Negotiate / Accept

Use AI recommendations to adjust unfavorable terms easily.

Step 05
✍️

Get Signatures

Execute ESIGN Act & eIDAS legally binding eSignatures.

Market Positioning

Why Teams Choose Indigo eSign

Compare Indigo eSign with legacy e-signature tools and overpriced legal AI platforms.

Feature / Capability Indigo eSign ⭐ AI + Signatures DocuSign LawGeex
AI Contract Analysis & Risk Detection ✓ Included ❌ No ✓ High Cost
Plain English Clause Summaries ✓ Included ❌ No ✓ Included
Legally Binding eSignatures (ESIGN/eIDAS) ✓ Included ✓ Included ❌ Extra / Limited
Monthly Price $19 / mo $15 / mo
(No AI Review)		 $500+ / mo
(Enterprise Only)
Setup & Time-to-Value Instant (Web-based) Instant Weeks (Sales cycle)
Cost vs Hiring Lawyers ($15K+/yr) ✓ 95% Savings ❌ No Risk Protection ✓ High Enterprise Fee
Developer REST API

Integrate AI Contract Review & Signatures
into Any Application

Use the Indigo eSign REST API to automate contract analysis, risk detection, embed signing experiences, and track agreement status in real time — from any platform or tech stack.

RESTJSON API
99.9%Uptime SLA
200msResponse Time
HTTPSTLS Encrypted
analyze-and-send.js
JavaScript
Python
cURL
// Analyze contract for risks & send for eSignature
          const response = await fetch('https://api.indigoesign.com/v1/contracts/analyze-and-send', {
            method: 'POST',
            headers: {
              'Authorization': `Bearer ${API_KEY}`,
              'Content-Type': 'application/json'
            },
            body: JSON.stringify({
              title: 'Vendor MSA Agreement 2026',
              enable_ai_review: true,
              risk_threshold: 'medium',
              signers: [
                { role: 'client', email: 'legal@company.com' }
              ]
            })
          });

          const { risk_score, status, signing_url } = await response.json();
          // risk_score: "Low (Safe)" ✓  |  signing_url: ready to execute

Start Building in Minutes

Get your API key today and integrate AI contract review + legally binding eSignatures into your app. Full documentation, sandbox environment, and dedicated developer support included.

Get API Key → Read the Docs
Trusted by Legal & Business Teams

What Legal & Finance Leaders Say

See how Indigo eSign AI saves thousands in legal fees while preventing critical contractual risks.

💰 Saved $50K

"Indigo eSign AI flagged an un-capped indemnity & liability clause we would have completely missed in a vendor MSA. Saved us over $50K in potential liabilities!"

Sarah Mitchell

Legal Ops Manager

⚡ 80% Time Reduction

"We used to wait 3 to 5 days for outside legal counsel to review standard client contracts. Now Indigo eSign AI analyzes them in 30 seconds and we sign immediately."

Michael Chen

VP of Finance & Operations

✍️ Instant Legal Peace of Mind

"As a growing startup, hiring full-time legal counsel was cost-prohibitive. Indigo eSign gives us enterprise-grade AI contract review + binding signatures for a fraction of the cost."

Devendra Jon

Founder & CEO

Transparent Pricing

AI Analysis + Signatures Included in Every Plan

$49/mo for complete AI contract review + unlimited signatures (vs $15K+/year for external legal retainers).

Free Trial

$0 / mo

Get started with zero risk.

  • ✓ 1 AI Contract Analysis/mo
  • ✓ 5 Legally Binding Signatures
  • ✓ 1 external participant/doc (+ yourself)
  • ✓ 100 MB storage
  • ✓ Email notifications
  • ❌ API templates
  • ❌ API keys
  • ❌ API requests/month
Start Free

Basic AI

$19 / mo

Ideal for solo professionals & freelancers.

  • ✓ 5 AI Contract Analyses/mo
  • ✓ 50 Legally Binding Signatures
  • ✓ 3 external participants/doc (+ yourself)
  • ✓ 500 MB storage
  • ✓ Push notifications
  • ✓ Document expiration
  • ✓ 1 API template
  • ✓ 1 API key
  • ✓ 1 API request/month
Get Started
⭐ MOST POPULAR

Pro AI + Signer

$49 / mo

Complete AI Lawyer + eSignature Platform.

  • ✓ 100 AI Contract Analyses/mo
  • ✓ Unlimited Legally Binding Signatures
  • ✓ 5 external participants/doc (+ yourself)
  • ✓ 1 GB storage
  • ✓ Advanced Signature Types (Stamp, Textbox)
  • ✓ Cloud storage integration
  • ✓ Secured Document Sharing & Audit Trail
  • ✓ 50 API templates
  • ✓ 10 API keys
  • ✓ 1000 API requests/month
Get Started

Enterprise

Custom workflows & SLAs for legal & corporate teams.

  • ✓ Unlimited AI Contract Analyses
  • ✓ Unlimited Legally Binding Signatures
  • ✓ Unlimited External Participants & Storage
  • ✓ Multi-User Team Roles & Access Control
  • ✓ Custom AI Contract Playbooks & Prompts
  • ✓ Dedicated Account Manager & Onboarding
  • ✓ 99.9% Uptime SLA & Custom REST API Webhooks
Contact Sales

💡 Why pay $15K+/year for legal retainers or $500+/mo for LawGeex? Indigo eSign gives you full AI review + unlimited legally binding signatures starting at $49/mo.

- FAQ -

Find answers to common questions about our electronic signature platform and how it can benefit your business.

  • Yes, electronic signatures executed through Indigo e-Sign are 100% legally binding worldwide under the ESIGN Act, UETA, and eIDAS regulations. Every signed agreement includes a cryptographic tamper-proof seal and complete audit trail.

  • Our AI analyzes uploaded contract PDFs to extract key liabilities, detect non-standard risks, generate executive summaries, and suggest legal playbook improvements. Your document data is encrypted with 256-bit AES, never shared with third-party public models, and remains strictly confidential.

  • Yes, absolutely. You can upgrade, downgrade, or cancel your subscription plan at any time directly from your billing dashboard with zero hidden fees or lock-in contracts.

  • Currently, Indigo e-Sign supports PDF documents only. Upload your PDFs to securely prepare, send, and complete legally binding eSignatures online.

  • Indigo e-Sign is built with strong security practices to protect your documents and signing activity. We use secure data transmission, controlled access, and tamper-evident audit logs to help ensure document integrity and user accountability. Security measures are continuously reviewed and improved as the platform evolves.

  • Yes, you can track your document status in real-time. Get notifications when documents are viewed, signed, or completed. Access detailed audit trails for compliance purposes.

  • No, signers don't need to create an account. They can sign documents directly through email links on any device - computer, tablet, or smartphone.

  • We offer 24/7 customer support via email, live chat, and phone. Our dedicated support team is ready to help you with any questions or technical issues you may encounter.