> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stigg.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Backend SDKs

<CardGroup cols={2}>
  <Card title="Node.js" icon="node" href="/api-and-sdks/references/sdk/backend/graphql/node">
    Node.js SDK
  </Card>

  <Card title="Python" icon="python" href="/api-and-sdks/references/sdk/backend/graphql/python">
    Python SDK
  </Card>

  <Card title="Go" icon="golang" href="/api-and-sdks/references/sdk/backend/graphql/go">
    Go SDK
  </Card>

  <Card title="Java" icon="java" href="/api-and-sdks/references/sdk/backend/graphql/java">
    Java SDK
  </Card>

  <Card title="Ruby" icon="gem" href="/api-and-sdks/references/sdk/backend/graphql/ruby">
    Ruby SDK
  </Card>

  <Card title=".NET" icon="microsoft" href="/api-and-sdks/references/sdk/backend/graphql/dotnet">
    .NET SDK
  </Card>

  <Card title="Sidecar" icon="server" href="/api-and-sdks/references/sdk/backend/graphql/sidecar">
    Sidecar SDK
  </Card>
</CardGroup>


## Related topics

- [API Keys](/documentation/managing-your-account/environments/api-keys.md)
- [Backend](/api-and-sdks/integration/backend.md)
- [Overview](/api-and-sdks/integration/overview.md)
- [Customer management](/api-and-sdks/integration/backend/customers.md)
- [Entitlement checks](/api-and-sdks/integration/backend/entitlements.md)