# ADD_BREADCRUMB | @aa-sdk/core

> The symbol that is used to add a breadcrumb to the headers. Is an optional function that is used to add a breadcrumb to the headers.

> For the complete documentation index, see [llms.txt](/docs/llms.txt).

{/* This file is auto-generated by TypeDoc. Do not edit manually. */}

```ts
const ADD_BREADCRUMB: typeof ADD_BREADCRUMB;
```

Defined in: [aa-sdk/core/src/client/addBreadcrumb.ts:5](https://github.com/alchemyplatform/aa-sdk/blob/main/aa-sdk/core/src/client/addBreadcrumb.ts#L5)

The symbol that is used to add a breadcrumb to the headers. Is an optional
function that is used to add a breadcrumb to the headers.