Call the xumm API

For some languages you can use our SDK.
npm version python version NuGet version Packagist PHP version


Javascript & Typescript SDK & Tutorial

Please note that, instead of calling the XUMM API yourself, you can use the XUMM SDK instead.

Here's a tutorial

If you want to call the API yourself: the xumm API lives at<endpoint>. Please check out the API Docs for available endpoints and methods.

All calls to the xumm API have to contain at least these three HTTP headers:

Header (key)Value
Content-Type application/json
X-API-Key Obtained from the xumm Developer Dashboard
X-API-SecretObtained from the xumm Developer Dashboard


Anyone in possession of your X-API-Secret can create payloads (sign requests) on behalf of your application. If abused, this can damage the reputation of your application immensely. Please never implement the xumm API in a scenario where calls are made from the client side: only call the xumm API from your application backend, always ensuring you keep your xumm API secret safe on the server side.


If you think your API Secret has been exposed or compromised, re-generate a new secret immediately in the xumm Developer Dashboard.



  • NodeJS / Typescript
    npm version
  • Python
    python version
  • PHP
    Packagist PHP version
  • C# .NET
    NuGet version

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