The auth0-api-python library allows you to secure APIs running on Python, particularly for verifying Auth0-issued access tokens.

It’s intended as a foundation for building more framework-specific integrations (e.g., with FastAPI, Django, etc.), but you can also use it directly in any Python server-side environment.

📚 Documentation - 🚀 Getting Started - 💬 Feedback

Documentation

• Docs Site - explore our docs site and learn more about Auth0.

Getting Started

1. Install the SDK

This library requires Python 3.9+.

pip install auth0-api-python

If you’re using Poetry:

poetry install auth0-api-python

2. Create the Auth0 SDK client

Create an instance of the ApiClient. This instance will be imported and used anywhere we need access to the methods.

from auth0_api_python import ApiClient, ApiClientOptions


api_client = ApiClient(ApiClientOptions(
    domain="<AUTH0_DOMAIN>",
    audience="<AUTH0_AUDIENCE>"
))

• The AUTH0_DOMAIN can be obtained from the Auth0 Dashboard once you've created an application.
• The AUTH0_AUDIENCE is the identifier of the API. You can find this in the APIs section of the Auth0 Dashboard.

3. Verify the Access Token

Use the verify_access_token method to validate access tokens. The method automatically checks critical claims like iss, aud, exp, nbf.

import asyncio

from auth0_api_python import ApiClient, ApiClientOptions

async def main():
    api_client = ApiClient(ApiClientOptions(
        domain="<AUTH0_DOMAIN>",
        audience="<AUTH0_AUDIENCE>"
    ))
    access_token = "..."

    decoded_and_verified_token = await api_client.verify_access_token(access_token=access_token)
    print(decoded_and_verified_token)

asyncio.run(main())

In this example, the returned dictionary contains the decoded claims (like sub, scope, etc.) from the verified token.

Requiring Additional Claims

If your application demands extra claims, specify them with required_claims:

decoded_and_verified_token = await api_client.verify_access_token(
    access_token=access_token,
    required_claims=["my_custom_claim"]
)

If the token lacks my_custom_claim or fails any standard check (issuer mismatch, expired token, invalid signature), the method raises a VerifyAccessTokenError.

Feedback

Contributing

We appreciate feedback and contribution to this repo! Before you get started, please read the following:

• Auth0's general contribution guidelines
• Auth0's code of conduct guidelines
• This repo's contribution guide

Raise an issue

To provide feedback or report a bug, please raise an issue on our issue tracker.

Vulnerability Reporting

Please do not report security vulnerabilities on the public GitHub issue tracker. The Responsible Disclosure Program details the procedure for disclosing security issues.

What is Auth0?

Auth0 is an easy to implement, adaptable authentication and authorization platform. To learn more checkout Why Auth0?

This project is licensed under the MIT license. See the LICENSE file for more info.