Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
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Learn how to implement JWT authentication for AI agent APIs using FastAPI. Covers token creation, validation, claims design, refresh tokens, and middleware for securing every request.
Master OAuth2 authorization code, client credentials, and PKCE flows for AI agent integrations. Includes FastAPI examples for connecting agents to external APIs securely.
Build a production-grade API key management system for AI agent platforms. Covers key generation, secure hashing, scoping, rate limiting, rotation strategies, and revocation with FastAPI.
Learn how to build secure session management for AI agent conversations. Covers session token design, server-side storage, expiration, concurrent session handling, and forced invalidation with FastAPI.
Implement webhook signature verification to secure inbound events for AI agents. Covers HMAC-SHA256 signatures, timestamp validation, replay attack prevention, and production-ready FastAPI middleware.
Implement service-to-service authentication for multi-agent architectures using mTLS and service tokens. Covers certificate setup, trust boundaries, token exchange, and FastAPI integration.
Design and implement fine-grained permission systems for AI agent tools using RBAC, ABAC, and policy evaluation. Includes FastAPI examples for dynamic, context-aware access control.
Set up a secure API gateway for AI agent systems using Kong, Traefik, and custom FastAPI patterns. Covers authentication plugins, rate limiting, request transformation, and routing strategies.
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