Auth and identity for
AI apps,agents,MCP servers

For AI-native systems. MCP and OAuth 2.1 supported out of the box.

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Agent and MCP identity, as infrastructure.

AI runs better with Logto handling auth and identity, so your stack stays clean and standards-compliant.

Authentication flows built into chat

Embed sign-in and SSO directly into your chatbot flow. Users are prompted when needed, and authentication is handled securely through OIDC/OAuth redirects.

How it works

  • When authentication is required, prompt users in the chat and redirect to Logto for secure sign-in.
  • Support passwordless, social, and enterprise SSO. Users are sent right back to the chat once signed in.
  • Protect high-value actions with step-up auth or MFA when needed.
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Stop bots and abuse before it starts

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Cloudflare Captcha

Built-in security that's more than a CAPTCHA. Block fake signups, brute-force attacks, and credential stuffing with layered security. Logto brings security practices from SaaS to the agent world.

How it works

  • Challenge suspicious traffic with dynamic CAPTCHA, only when needed.
  • Rate limits and blacklists stop repeat abusers.
  • MFA, short-lived tokens, and revocation controls for anything sensitive.
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Enable AI agent access to your MCP server

Let agents access your MCP server with guardrails. Turn your MCP server into a resource server and give AI agents scoped access, with user sign-in and explicit consent.

How it works

  • Set up Logto as the identity provider for your MCP server.
  • Agents request scopes, users approve or deny.
  • Full audit logs of every grant and revocation.
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Make your app agent-friendly

Open your app or API to AI agents with access you choose. Logto manages authentication, scope, and tokens behind the scenes.

How it works

  • Register agents as third-party apps in Logto, just like any other OAuth client.
  • Agents request user consent to access your app's APIs with specific scopes.
  • Logto handles token management, including access and refresh tokens, so agents can call your APIs securely.
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Connect your agent to third-party APIs and MCP servers

Enable your agent to act on behalf of users with third-party APIs. No manual token juggling, no storing secrets in plain text.

How it works

  • Use Logto's APIs to get and refresh access tokens for Google, GitHub, or MCP endpoints.
  • Exchange tokens securely without exposing secrets in your agent codebase.
  • Focus on workflows; Logto manages the auth dance.
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Discover our blog posts on AI

blog coverWhat is MCP (Model Context Protocol) and how it works

An easy-to-understand guide to Model Context Protocol (MCP), explaining how it helps LLMs access external resources to overcome knowledge limitations and build more powerful AI applications.

March 4, 20256 min readblog coverWhy your product needs OAuth 2.0 and OIDC — Especially in the AI era

Learn why OAuth 2.0 and OpenID Connect (OIDC) are important for modern authentication, especially in the age of AI, agents, and smart devices.

April 18, 20258 min readblog coverEmpower your business: Connect AI tools to your existing service with access control

Learn how to empower your business by securely connecting AI tools to your existing services using Personal Access Tokens and Model Context Protocol (MCP).

March 5, 20259 min read

Secure agent auth and identity with Logto

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