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

# SDKs

> Seven server SDKs plus a separate browser SDK. OpenAPI remains the contract.

# SDKs

[Intro](#intro)

<h2 id="intro">
  Intro
</h2>

Node/TypeScript, PHP, Python, Java, .NET, Go, and Ruby clients are generated from the same live OpenAPI. They wrap `retrieveRefund` and the other public retrieves. Fern is not an authority. Wire names stay `refund_ref` and `operation_id`.

See the [CLI](./cli#intro) and [quickstarts](./getting-started#quickstarts).

```ts theme={null}
const operationId: string = 'retrieveRefund'
const refund_ref: string = 'ref_0123456789AB'
```

<h2 id="browser-sdk">
  Browser SDK
</h2>

The browser SDK is a separate package. It only accepts ephemeral origin-bound public capabilities. It never holds a service credential, webhook secret, or admin/finance API.