Authentication
================

.. note::
   You must generate an ``API_KEY`` from the FastGST console in order to use the API.

.. warning::
   If the ``Authorization`` header is missing or the API Key is invalid, the server will return a ``401 Unauthorized`` error.


This section convers how you can generate API keys for accessing "Tax Lookup API" services.

.. toctree::
   :maxdepth: 2
   :caption: Follow these steps to generate API keys:

   Step 1: Creating Account <creating_account>
   Step 2: Activating Tax Lookup API <activating_api>
   Step 3: Choosing a Plan <choosing_plan>
   Step 4: Generating API Keys <generating_api_keys>