# Getting started

> From your first Platform sign-in to a first authenticated call: the Quickstart, then the details of the API key and the Authorization header.

Start with the [Quickstart](https://developer.noryo.app/en-GB/transaction-intelligence/quickstart): it takes you, entirely in the sandbox, from a Noryo identity to a first enrichment read back. You enable the Transaction Intelligence sandbox on Platform, create an `nry_txn_sbx_` key, send a transaction with `curl` or TypeScript, read it back, then check usage.

Then read [Authentication](https://developer.noryo.app/en-GB/transaction-intelligence/authentication): the credential format, how to present it in the `Authorization: Bearer` header, where to keep the secret, revocation, and the difference between a `401` and a `403`.

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Canonical page: https://developer.noryo.app/en-GB/transaction-intelligence/getting-started