🤖 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 — at a fraction of traditional legal review costs.

Analyze Your First Contract Free 📖 Read AI Review Guide →

🤖 Powered by AI

⚡ AI Risk Flagging

🛡️ ESIGN Act & eIDAS Compliant

👥 “An Indigo Software product”. It’s true, and it borrows real trust from the parent brand. Only restore a count if account data supports it.

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.

🛡️ Enterprise Trust & Compliance Standards

Built for Legal Validity, High Speed & Bank-Grade Security

⚖️

Legally Binding

Built to meet the requirements of the US ESIGN Act, UETA and EU eIDAS.

⚡

30-Second AI Risk Check

Instant liability detection, plain-English summaries & risk warnings.

🔒

256-Bit AES Security

Bank-grade data encryption in transit and at rest with SHA-256 audit logs.

📱

Instant Mobile Signing

Recipients sign on any phone or laptop in 30 seconds with zero app installs.

📄 Master Service Agreements (MSAs)

🔒 Non-Disclosure Agreements (NDAs)

📦 Vendor Contracts & POs

🏢 Commercial & Residential Leases

💼 Employment Agreements & SOWs

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.

📖 Featured Authority Guide

Mastering AI Contract Review: Plain-English Summaries & Clause Analysis

Learn how automated AI contract analysis extracts key terms, flags hidden liability traps, and pairs seamlessly with legally binding eSignatures before you commit.

Explore AI Review Guide →

Market Positioning

Why Teams Choose Indigo eSign

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

Feature / Capability	Indigo eSign Pro ⭐ 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	$49/mo ($39/mo billed quarterly)	$15 / mo (No AI Review)	$500+ / mo (Enterprise Only)
Setup & Time-to-Value	Instant (Web-based)	Instant	Weeks (Sales cycle)
Counsel Hours on Routine Contracts	✓ Up to 95% Saved	❌ 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.

A measured figure with its scope (for example “p95 < 300 ms for signing endpoints”), or simply “Fast REST JSON API”.

analyze-and-send.js

JavaScript

Python

cURL

// Analyze contract for risks & send for eSignature
          const response = await fetch('https://indigoesign.com/api/v1/sign-request', {
            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

Cost Comparison & Value

Spend Less Lawyer Time on Routine Contracts

AI flags the clauses worth a second look in 30 seconds so your counsel’s hours go where they matter most, while eliminating per-envelope signing fees.

The Business Math

Instant Pre-Signature Protection at 95% Lower Cost

Every contract waiting in a legal review queue slows down revenue, delays supplier onboarding, and creates hidden liabilities. Indigo eSign provides automated pre-signature clause analysis, plain-English summaries, and legally binding signing in one simple platform.

95%

Fewer Billable Review Hours

Spend less time paying hourly rates for standard contract reviews by letting AI analyze routine terms first.

30 Sec

Instant AI Risk Check

Eliminate days of waiting for outside counsel on standard business agreements.

$15,000+

Saved in Legal Retainers

Focus your legal budget on complex deals and strategy instead of burning hours on routine NDAs or MSAs.

Broad Risk Coverage

Flags common risks such as hidden auto-renewals, uncapped liabilities and missing clauses, so you know what to look at before you sign.

Estimated Cost Comparison

Traditional Approach vs. Indigo eSign

Manual Legal Review Unfiltered Attorney Hours ($15,000/yr) + Legacy eSign ($600/yr)

$15,600
+ 5-day delays

Indigo eSign Pro Full AI Risk Review + Unlimited Legally Binding eSignatures

$588 / yr
($49/mo flat)

Start Free — No Credit Card Needed →

Transparent Pricing

AI Analysis + Signatures Included in Every Plan

$49/mo for complete AI contract review + unlimited signatures (vs spending thousands in billable legal hours on routine review).

Free Plan

$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

$19.90 / 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

AI Contract Review + 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