> ## Documentation Index
> Fetch the complete documentation index at: https://trust-link-tsn.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# payment-authorization-server API

> Source-derived exports, parameter and result types, public methods and source links.

This reference is generated from the checked-out TypeScript exports. Types and signatures describe the package contract; source presence does not establish deployment or service availability. Error expressions below are direct throws, not an exhaustive list of failures from dependencies.

[Source module](https://github.com/bigdreamsweb3/trustlink-pay/blob/main/tsn-protocol/sdks/tsn-sdk/src/payment-authorization-server.ts). See the [reference index](https://trust-link-tsn.mintlify.site/sdk/api-reference.md) for package import boundaries and verification scope.

## verifySenderPaymentAuthorization

Import from `@trustlink/tsn-sdk` or `@trustlink/tsn-sdk/payment-authorization-server`. [Implementation, line 10](https://github.com/bigdreamsweb3/trustlink-pay/blob/main/tsn-protocol/sdks/tsn-sdk/src/payment-authorization-server.ts#L10).

```ts theme={null}
verifySenderPaymentAuthorization(params: { senderWallet: string; signatureBase64: string; message: string; }): Promise<boolean>
```


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.