---
page_source: https://docs.juspay.io/paytm-gateway-configuration/docs/preauth-and-capture/annexure
page_title: Annexure
---


# Annexure




## Notes



* API Key is like the password to your account. You must never send this information to browser or application clients. Also, do not publish your API Key in publicly accessible areas such as Git repositories, Android/iOS clients, support forums, etc..
* Use [https://sandbox.juspay.in](https://sandbox.juspay.in) endpoint for testing on staging server.
* For the full set of our API please go through [https://developer.juspay.in/reference](https://developer.juspay.in/reference).


## Conventions



* All response are in JSON format.


## Status Codes



All status codes are standard HTTP status codes. The below ones are used in this API.2XX - Success of some kind4XX - Error occurred in the client’s part5XX - Error occurred in the server’s part


| Status Code | Description |
|---|---|
| 200 | Ok |
| 400 | Bad Request |
| 401 | Authentication failure |
| 403 | Forbidden |
| 500 | Internal Server Error |