Machine to Machine Authentication | Ory
Machine to Machine Authentication
Secure OAuth2 authentication for services, devices, and AI agents using the client credentials flow for machine-to-machine access across any infrastructure.
Ory is the standards-compliant way to handle machine to machine authentication, not just human users. Grant secure access to any remote system or service with OAuth2 and the client credentials flow.
Not a human? Not a problem.
Microservices, servers, devices, and AI agents need identity and access, too. Ory's OAuth2 client credentials flow lets you grant and manage machine to machine authentication for every non-human identity in your stack.
Granular permissions & scopes
Flexibly define access with OAuth2 scopes, then layer fine-grained permission checks for precise control over what each service or agent can do.
Keyset rotation & JWK management
Ory's OAuth2 server handles JSON Web Key (JWK) rotation and cryptographic keyset management automatically, no manual key handling.
Devices, agents, APIs & autonomous systems
Issue and verify M2M authentication tokens for secure, autonomous interactions between services, devices, AI agents, and machine-to-machine systems.
Dynamic client registration
Programmatically register and manage OAuth2 clients at scale with OAuth 2.0 Dynamic Client Registration — ideal for multi-tenant platforms and fleets of services or agents.
Connect autonomous systems in seconds
Let your coding agent do the integrating. With Ory DX, the Ory MCP Server and agent plugins working together — developers wire up enterprise-ready M2M auth, API keys, and permissions conversationally, without leaving their AI coding tool.
More on machine-to-machine auth
OAuth for AI Agents: How Authorization Actually Works
OAuth gives AI agents delegated, scoped, revocable access. Learn the four flows that fit agents, where OAuth falls short, and how to layer fine-grained authorization on top.
Can API keys be used to secure AI agents?
Traditional API keys are a major vulnerability for autonomous AI agents. Discover how Ory Talos replaces static credentials with dynamic, revocable token delegation.