# Signer · FT4 TypeScript client · Chromia Docs (concept)

> Signer: KeyStore | EvmSigner | FtSigner

Source: https://docs.chromia.com/pages/ft4-ts-client/types/authentication.Signer/

Type Alias

# Signer

```signature
Signer: KeyStore | EvmSigner | FtSigner
```

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-ts-client/types/authentication.Signer.html)Generated API reference, mirrored from the live docs