Authentication
How agents log in, obtain tokens, and prove identity across SaaS, APIs, MCP servers, and multi-agent workflows.
Adjacent tracks
Best Practices for Agent-to-Agent Authentication
Secure AI agent interactions with unique identities, short-lived tokens, mTLS, OAuth client credentials, and continuous monitoring for audit and compliance.
PKCE in OAuth for AI Agents: Best Practices
Guide to PKCE for AI agents: generate S256 verifiers, enforce PKCE server-side, use short scoped tokens, validate redirects, and monitor PKCE flows.
Deploy Phishing-Resistant Passkeys: A Practical Guide
Discover how phishing-resistant passkeys and physical security keys enhance enterprise authentication, reducing breaches and improving security.
Top 7 AI Authentication Platforms in 2025
Explore the top AI authentication platforms of 2025, highlighting key features, pricing, and suitability for various organizational needs.
How to Secure AI Agent Authentication in 2025
Explore essential strategies for securing AI agent authentication in 2025, focusing on unique credentials, JIT access, and compliance standards.
OAuth vs OIDC for AI Systems: Complete Guide
Explore how OAuth and OIDC secure AI systems, detailing their differences, workflows, and best practices for effective implementation.
Auth0 vs Okta vs Prefactor: Which Handles AI Agent Authentication Best?
Compare Auth0, Okta, and Prefactor for AI agent authentication. See feature matrices, performance comparisons, and real implementation examples.
9 AI Agent Authentication Horror Stories (And How Prefactor Prevents Them)
Real disasters from forcing AI agents into human-centric auth: $15M compliance failures, security breaches, performance meltdowns, and scaling walls.
5 Signs Your Auth Provider Can't Handle AI Agents (And What to Do About It)
Identify warning signs your auth provider wasn't built for AI agents: manual registration, false security alerts, session timeouts, and missing agent features
7 Authentication Problems You'll Hit When Deploying AI Agents at Scale
Discover the 7 authentication problems that break AI agent scaling: manual registration bottlenecks, session timeouts, rate limiting, audit trail confusion, and more.
How to Add AI Agent Authentication Without Replacing Your Existing Auth Provider
Don't replace your existing auth provider. Learn how Prefactor wraps around Auth0, Okta, or Azure AD to add AI agent capabilities without migration.
How to Let AI Agents Access Google and Microsoft APIs Without Multiple OAuth Flows
Learn how transparent token exchange lets users authenticate once with Google/Microsoft while AI agents get seamless API access without multiple OAuth flows.
How to Manage Authentication Sessions for 24/7 AI Agents vs Human Users
Discover why 24/7 AI agents need different session management than human users. Learn how Prefactor's labeled agent sessions prevent timeouts and monitoring noise.
How to Handle Dynamic Client Registration for AI Agents That Spawn and Terminate Automatically
Learn why AI agents need device-like Dynamic Client Registration, not application-style permanent registration. Discover how Prefactor's DCR handles ephemeral agent lifecycles automatically.
Why M2M Tokens Aren’t Enough for Agent-Based Systems: Beyond Static Credentials
M2M tokens aren't enough
Why OAuth Alone Isn’t Enough for Agent Authentication
Why OAuth alone does not solve agent authentication, delegation, lifecycle, or runtime control.
The Top 5 Problems with M2M Tokens in Agent Workflows
Top 5 problems with M2M tokens
Why Machine-to-Machine Auth Breaks in the Age of AI Agents
Why traditional machine-to-machine auth breaks for AI agents, and what a safer identity model requires.
Beyond Human Login: Why Your App Needs an Agent-First Authentication Strategy
Agent First Authentication
Build vs Buy Agent Authentication
A practical look at building versus buying authentication when AI agents need delegated access, lifecycle control, and auditability.
Authentication vs. Authorization: Understanding the Key Differences
Authentication vs authorization
How to Version and Test Your Login Flow Like Any Other Part of Your Stack
Treat your login like code — not config.
Build vs Buy — The Real Cost of Authentication
What building authentication really costs once security, maintenance, and AI-agent support are included.
Common Concerns About Third-Party Auth Providers
How to evaluate third-party auth providers without repeating the usual lock-in, security, and control myths.
I Built My Own Auth — How do I evaluate the right customer identity solution?
Evaluating customer identity after I've Hand rolled my own
Open or Closed: What Kind of User Identity Stack Should You Trust?
Open or Closed Source User Identity stack?
When Authentication and Authorization Join Forces: Why Unity Makes Sense
Why the user layer includes authentication and authorization