# Type Alias: TRPCMutationKeyWithoutPrefix

> 

> **TRPCMutationKeyWithoutPrefix**: \[`string`[]\]

Defined in: [tanstack-react-query/src/internals/types.ts:148](https://github.com/trpc/trpc/blob/57482b0bb09dce5c838dc8bf5727a943488bac61/packages/tanstack-react-query/src/internals/types.ts#L148)

A tRPC mutation key: the procedure path.

## See

https://trpc.io/docs/client/tanstack-react-query/usage#mutationKey