Christian Posta • 7/28/2025

Configuring A2A OAuth User Delegation

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This article provides a detailed walkthrough for implementing OAuth 2.0 user delegation in an A2A (Agent-to-Agent) architecture. It covers configuring an AgentCard to define security requirements, setting up a FastAPI application with the A2A Python SDK, and enforcing authentication middleware to ensure tokens follow the principle of least privilege for specific agent capabilities.

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#authentication #oauth #fastapi
Configuring A2A OAuth User Delegation

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