Implement secure LlamaIndex tool calling with Auth0 Token Vault. Learn to handle user-level OAuth tokens for third-party APIs like Gmail in your AI agents.

Auth0's platform is a  identity management solution, offering insights into authentication, authorization, and user management for web and mobile applications. Through articles, tutorials, and documentation, Auth0 offers insights into securing applications with modern identity protocols like OAuth and OpenID Connect. Developers can learn about implementing single sign-on (SSO), multi-factor authentication (MFA), and user authorization policies to enhance application security and user experience.

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LlamaIndex agents can securely call third-party APIs on behalf of authenticated users using Auth0's Token Vault. The tutorial demonstrates building a teacher assistant that sends Gmail emails through an LLM agent by configuring Google OAuth with Auth0, enabling Token Exchange for federated connections, and using the Auth0 AI LlamaIndex SDK to fetch scoped access tokens just-in-time. The approach keeps credentials secure by storing refresh tokens in Token Vault and never exposing them to the LLM, while allowing user-level actions that maintain proper identity and audit trails.

Secure Third-Party Tool Calling in LlamaIndex Using Auth0

Adding Third-Party Tool Call in a LlamaIndex-Powered Application

Setting up Google Authentication with Auth0

Setting Up Token Exchange with Token Vault

Implementing Third-party Tool Integration in LlamaIndex