Built for Developers

One eSign API for Aadhaar, DSC & Electronic Signature

Add legally valid digital signatures to your product in a day. REST API and webhooks for Aadhaar OTP eSign, P12/DSC signing, and draw signature - sandbox included, no paperwork to get started.

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REST + Webhooks 256-bit Encrypted IT Act 2000 Compliant

POST /api/v1/document-signrequest

curl --location 'https://esignclub.in/api/v1/document-signrequest' \
  -H "Accept: application/json" \
  -d '{
    "document_id": "74ddb368-13cc-4cb7-bd52-92210cfb5d76",
    "expiry_date": "2026-08-19",
    "is_sequential": false,
    "webhook_url": "https://your-domain.com/receive-webhook",
    "signers": [
      {
        "sequence": 1,
        "sig_type": "electronic",
        "name": "Rajesh Sharma",
        "email": "[email protected]",
        "page": ["1"],
        "cords": [
          { "x": 40, "y": 97, "w": 153, "h": 56 }
        ]
      }
    ]
  }'

// 200 OK
{
  "status": "success",
  "message": "Signature request created",
  "document_id": "74ddb368-13cc-4cb7-bd52-92210cfb5d76"
}

⚡ Avg. response: 150ms

🔁 Webhook delivered

API Capabilities

Two signing methods, one integration

Call one API, choose the signing method per document - no separate integrations to maintain.

Aadhaar OTP eSign API

Trigger UIDAI-backed OTP eSign in a single call. Get a hosted signing link or embed it in your own flow.

Draw Signature API

Capture a drawn signature from mobile or web and place it on the document via API - no OTP round trip needed.

Multi-Signer & Bulk API

Send one document to multiple signers in sequence or parallel, or trigger bulk eSign jobs from your backend.

Real-Time Webhooks

Get notified the moment a document is viewed, signed, or expires - no polling required.

Go live in four steps

1

Create Account

Sign up and get a free sandbox API key - no card required.

2

Call the API

Send a document and signer details to the initiate endpoint.

3

Signer Verifies

Signer completes Aadhaar OTP, DSC, or draw signature on the hosted link.

4

Get Webhook

Receive the signed PDF and audit trail instantly at your callback URL.