# PRODUCTS & MODULES

This section describes the **eSAW One-Shot** product and integration. For the full product overview and documentation index, see the [eSAW One-Shot homepage](/products/namirialpkiaas/esaw-one-shot/homepage).

## Service overview

**eSAW One-Shot** combines **Uanataca** single-use certificate issuance with the **eSignAnywhere (eSAW)** platform. You create a certificate request on Uanataca, upload documents to eSAW, and send an envelope that the end user signs with the One-Shot certificate via the eSAW signing experience.

- **Two hosts** — Uanataca (certificate request, client certificate auth) and eSignAnywhere (file upload and envelopes, API key auth).
- **Flow** — Create request → get esaw_token → upload file → send envelope with requestToken; the user signs in eSAW with the One-Shot certificate.


For endpoints and authentication, see [GET STARTED](/products/namirialpkiaas/esaw-one-shot/enterprise-documentation/get-started/overview). For the step-by-step flow and API details, see [Signing flow](/products/namirialpkiaas/esaw-one-shot/enterprise-documentation/get-started/signing-flow) and [API reference](/products/namirialpkiaas/esaw-one-shot/enterprise-documentation/developer-documentation/api/api-reference).