# API Key Authentication

## Exchange API key for tokens

 - [POST /api-key/token](https://docs.truemarkets.co/apis/auth/v1/api-key-authentication/exchangeapikeytoken.md): Verify an ECDSA P-256 signature and issue JWT tokens. The client signs
the message  with their private key using ES256.
The timestamp must be within ±30 seconds of the server time.