Logto blog

Discover Logto and explore plenty of resources on authentication, authorization, identity management, open standards (OAuth, OpenID Connect, SAML), and more.

Featured posts

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Changelogs

  • release
  • captcha
  • sentinel
  • magic link

Logto product updates

🎉 Introducing our April release: Security center, identifier lockout (sentinel), CAPTCHA, magic link support, and explore more updates!

Charles
Charles
Developer
Logto product updates

Tutorial

  • rbac
  • role design
  • rbac implementation

RBAC in practice: Implementing secure authorization for your application

RBAC in practice: Implementing secure authorization for your application

Tech

  • saas development
  • multi-tenant saas
  • saas architecture
  • saas boilerplate

Build a multi-tenant SaaS application: A complete guide from design to implementation

Build a multi-tenant SaaS application: A complete guide from design to implementation

All posts

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    Tech

    • mcp
    • modelcontextprotocol

    Introduce MCP Auth - Plug-and-play auth for MCP servers

    MCP Auth gives you everything you need to add production-ready auth to your MCP server. No weeks spent reading specs or wiring things up.

    Introduce MCP Auth - Plug-and-play auth for MCP servers
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    Product

    • open-source
    • auth
    • milesone

    Logto reaches 10,000 GitHub stars and 1 million identities: The open foundation for identity in the AI era

    We’re deeply grateful to have you on this journey. Join us in celebrating Logto’s milestone achievements!

    Logto reaches 10,000 GitHub stars and 1 million identities: The open foundation for identity in the AI era
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    Product

    • iam
    • auth solution

    What makes a good identity and access management solution

    Explores the key elements of an effective IAM solution including user experience, security, integration capabilities, documentation, cost-effectiveness, support, and future readiness based on Logto's experience serving developers.

    What makes a good identity and access management solution
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    Product

    • security
    • auth
    • email
    • disposable email

    Disposable emails: What they are, Why they exist, and how to handle them in your app

    Learn what disposable emails are, why they exist, the risks they pose to applications, and the key strategies you can use to detect and block them for stronger security and cleaner user data.

    Disposable emails: What they are, Why they exist, and how to handle them in your app
  • Cover

    Changelogs

    • release
    • captcha
    • sentinel
    • magic link

    Logto product updates

    🎉 Introducing our April release: Security center, identifier lockout (sentinel), CAPTCHA, magic link support, and explore more updates!

    Logto product updates
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    Tutorial

    • Idp
    • apache answer
    • community

    Logto in action: Integrate Apache Answer to launch a community for your users

    Demonstrates how to leverage Logto's 3rd-party app feature to integrate Apache Answer, creating a unified community platform where users can seamlessly access support using their existing accounts.

    Logto in action: Integrate Apache Answer to launch a community for your users
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    Product

    • japan
    • logto-cloud
    • region

    Announcing the Logto Cloud Japan region

    Logto Cloud now supports a new region in Japan, offering low-latency access and local data residency compliance for users in the Asia-Pacific region.

    Announcing the Logto Cloud Japan region
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    Tech

    • ai
    • OAuth 2.0
    • OIDC
    • agent

    Why 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. This article covers key use cases, when to implement these protocols, and how to choose the right auth provider for scalability and security.

    Why your product needs OAuth 2.0 and OIDC — Especially in the AI era
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    Tech

    • A2A
    • AI
    • MCP

    A2A vs MCP: Two complementary protocols for the emerging agent ecosystem

    This article introduces A2A and MCP — two emerging protocols shaping the future of AI agent systems. It explains how they work, how they differ, and why understanding this architecture matters for developers, designers, and AI product builders.

    A2A vs MCP: Two complementary protocols for the emerging agent ecosystem
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    Tech

    • mcp
    • mcp-auth
    • oauth

    In-Depth review of the MCP authorization spec (2025-03-26 edition)

    Deeply analyzes the MCP Authorization Specification, examining MCP Server's dual roles as Authorization and Resource Server, Dynamic Client Registration mechanisms, and practical considerations for implementing this protocol in real-world scenarios.

    In-Depth review of the MCP authorization spec (2025-03-26 edition)
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    Product

    • AI
    • MCP
    • Agent
    • IdP

    What you need to have in place for AI Agent and MCP Integration for your product

    In this piece, we explore the latest AI breakthroughs that underscore the urgency of secure agent and MCP integration. We highlight OAuth-based authentication as an important measure for protecting user credentials and explain how Logto can help your product serve as both an MCP server and an identity provider in the rapidly growing AI ecosystem.

    What you need to have in place for AI Agent and MCP Integration for your product
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    Changelogs

    • release
    • sign-up identifiers
    • wordpress

    Logto product updates

    🎉 Introducing our March release: Create your ideal sign-up flow with multiple identifiers, connect with WordPress in minutes, and explore more updates!

    Logto product updates
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    Product

    • Firebase Auth
    • Pricing

    2025 Firebase Authentication’s latest pricing explained and the best alternatives

    This article provides an overview and breaks down the key details of Firebase Authentication. It covers what Firebase Auth is, a summary of its pricing, and the best alternatives to Firebase Auth.

    2025 Firebase Authentication’s latest pricing explained and the best alternatives
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    Product

    • auth
    • agent
    • agent auth

    AI agent auth: use cases and identity needs

    2025 is the year of AI. As LLMs and agent experiences evolve, new challenges in authentication and authorization emerge. This article explores AI agent interactions, highlighting key security and authentication scenarios.

    AI agent auth: use cases and identity needs
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    Product

    • oss
    • IAM
    • SSO providers

    Top 5 Open Source Identity and Access Management (IAM) providers 2025

    Compare features, protocols, integrations, pros, and cons for Logto, Keycloak, NextAuth, Casdoor, and SuperTokens to find the best OSS fit for your authentication and authorization needs.

    Top 5 Open Source Identity and Access Management (IAM) providers 2025
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    Tutorial

    • netlify
    • auth solution
    • secure netlify functions

    Full-stack auth solution with Logto on Netlify: Protecting web apps and serverless functions

    Shows how to secure Netlify web apps and serverless functions with Logto authentication, complete with source code examples and a live demo preview.

    Full-stack auth solution with Logto on Netlify: Protecting web apps and serverless functions
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    Tutorial

    • mcp access control
    • mcp rbac
    • personal access token

    Empower 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), with complete source code and practical examples.

    Empower your business: Connect AI tools to your existing service with access control
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    Tech

    • MCP
    • Model Context Protocol
    • AI

    What 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.

    What is MCP (Model Context Protocol) and how it works
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    Changelogs

    • release
    • i18n
    • email templates

    Logto product updates

    It's time for a new Logto release! This update brings custom email templates for multiple languages, some improvements and fixes.

    Logto product updates
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    Product

    • Region
    • Data
    • Security

    Protect your identities in local regions and dedicated computing resources

    In this article, we’ll discuss when you might need to store your identities in local regions and how Logto can help.

    Protect your identities in local regions and dedicated computing resources