IDcentral vs SignYu: Aadhaar eSign API compared
A Subex identity platform offering an NSDL (Protean) based Aadhaar eSign API.
Last verified 2026-10-01
At a glance
| SignYu | IDcentral | |
|---|---|---|
| Pricing model | Monthly API access plus pay per signature | Not published, demo or enquiry |
| Published price | ₹999/month + ₹15/signature | Not published |
| Minimum commitment | None | Not published |
| Trial or sandbox | 3-day free trial | Not published |
| Self serve signup | Yes | No, via sales |
| SDKs | Official Node.js and Python SDKs, OpenAPI spec | APIs and SDKs are mentioned; languages are not listed. |
| Webhooks | Yes, HMAC SHA-256 signed | Not published |
| Focus | Aadhaar eSign for SMBs and developers | Identity verification and KYC (Subex) |
About IDcentral
IDcentral, part of Subex, lists an NSDL eSign and Aadhaar eSign API in its identity verification platform and states that it holds an ASP licence through NSDL. Pricing is not published and the product page offers a demo request or enquiry. API reference documentation is hosted at docs.idcentral.io.
- NSDL (Protean) eSign with an ASP licence
- Part of a wider identity verification platform
Choose IDcentral if
- You specifically want NSDL (Protean) as the eSign service provider
- You are buying several identity verification APIs together
- You prefer an enterprise vendor relationship
Choose SignYu if
- You want published pricing today: ₹999/month for API access plus ₹15 per signature on credit packs of 10 or more (GST inclusive)
- You want to self-serve: sign up, start a 3-day trial, and create an API key without a sales call
- You only need Aadhaar OTP eSign on PDFs, not a full KYC suite
- You want a small REST API (create, add signers, send, get, certificate) with HMAC-signed webhooks
Frequently asked questions
Which eSign service provider does IDcentral use?
Its eSign API page refers to NSDL (Protean) eSign and says IDcentral holds an ASP licence through NSDL.
Does IDcentral publish eSign pricing?
No. The page offers a demo request or enquiry form.
Which eSign service provider does SignYu use?
SignYu uses eMudhra's eSign gateway for Aadhaar OTP signing, under Section 3A of the IT Act 2000.
Sources for IDcentral: www.idcentral.io, docs.idcentral.io. Prices and features change; confirm with IDcentral before deciding.