Introduction
QSign is Quoqo’s digital e-signature platform. It lets you send documents for legally-valid electronic signature, sign them yourself, and keep a tamper-evident audit trail of who signed what, when, and how.
You can use QSign two ways:
- As a white-label API — add e-Signature, Aadhaar eSign and DSC signing to your own product. You get API keys, webhooks, a sandbox, and this reference. Start with the Quickstart.
- As a platform you self-host — run the whole stack (web app + API + signing services) on your own infrastructure with Docker Compose. See Self-hosting.
Signing methods at a glance
Section titled “Signing methods at a glance”| Method | Identity is proven by | Best for |
|---|---|---|
| e-Signature | Signer intent + consent (IP, timestamp, user-agent) | Everyday business documents |
| Aadhaar eSign | Government Aadhaar OTP via the NSDL/Protean gateway | India — IT-Act-aligned, no token |
| DSC | A PKI/X.509 certificate on a hardware token | High-assurance, non-repudiation |
All three produce a tamper-evident, auditable result. See Signing methods for the detail.
How these docs are organised
Section titled “How these docs are organised”- Getting Started — introduction, quickstart, and authentication.
- Guides — task-focused walkthroughs (send a document, webhooks, the DSC agent, sandbox).
- Concepts — how the tamper seal, audit trail, roles and plans work.
- API Reference — the full, auto-generated reference for every endpoint.
- Self-hosting — deploy and operate QSign on your own servers.