Zoop vs SignYu: Aadhaar eSign API compared
An identity and verification API company offering an Aadhaar eSign API with web and mobile SDKs.
Last verified 2026-10-01
At a glance
| SignYu | Zoop | |
|---|---|---|
| Pricing model | Monthly API access plus pay per signature | Not published, demo or API key request |
| Published price | ₹999/month + ₹15/signature | Not published |
| Minimum commitment | None | Not published |
| Trial or sandbox | 3-day free trial | Public web SDK documents a pre-production environment. |
| Self serve signup | Yes | Unclear |
| SDKs | Official Node.js and Python SDKs, OpenAPI spec | Web SDK, Android SDK and iOS SDK (public on GitHub). |
| Webhooks | Yes, HMAC SHA-256 signed | Web SDK emits front-end result events; server webhook details could not be verified on a public page. |
| Focus | Aadhaar eSign for SMBs and developers | Identity verification and digital contracting APIs |
About Zoop
Zoop (zoop.one) lists its Aadhaar eSign API under digital contracting, with integration options for direct API, Web SDK, Mobile SDK and custom builds. Its public GitHub web SDK documents an eSign gateway supporting Aadhaar with OTP, fingerprint or iris, and separate pre-production and production environments. Pricing is not published on zoop.one.
- Aadhaar eSign with OTP, fingerprint or iris (per the web SDK docs)
- Web, Android and iOS SDKs on GitHub
- Separate pre-production and production environments
Choose Zoop if
- You want drop-in web or native mobile SDKs for the signing step
- You need biometric Aadhaar eSign as well as OTP
- You also buy other identity verification APIs
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
Does Zoop publish Aadhaar eSign API pricing?
Not on zoop.one as of October 2026. The eSign page offers a demo and API key request.
Does Zoop have SDKs?
Yes. Zoop publishes web, Android and iOS SDKs on GitHub, and its eSign page lists API, Web SDK and Mobile SDK options.
Does SignYu have SDKs?
SignYu provides a REST API, an OpenAPI spec, a Postman collection, and official server SDKs published as `signyu` on npm and PyPI. Signers complete Aadhaar OTP on a hosted signing page, so no mobile SDK is needed.
Sources for Zoop: www.zoop.one, github.com. Prices and features change; confirm with Zoop before deciding.