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Logto

Open-source identity and authentication infrastructure for apps and APIs

As of 29 August 2026, Logto has a free plan and paid plans start at $24/month. Open-source auth platform providing sign-in, SSO, MFA, and RBAC via SDKs and APIs for web, mobile, and API products. Softwr lists it under Cybersecurity. Logto is available on Web, API.

Overview

What Logto does

Logto is an open-source identity infrastructure platform that gives developers pre-built sign-in, sign-up, and user management flows, along with SDKs for popular frameworks. It supports social connectors, single sign-on, multi-factor authentication, role-based access control, and machine-to-machine authentication. Teams can self-host the open-source core or use Logto Cloud, which bills on a token-based model tied to actual authentication activity.

What people use it for

  • Adding sign-in to a new SaaS product
  • Implementing SSO for B2B customers
  • Securing internal APIs with M2M tokens
  • Adding RBAC and organizations to a multi-tenant app

The honest half

Where it falls short

Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Logto.

  • Advanced features like RBAC, organizations, MFA, and enterprise SSO are billed as separate paid add-ons rather than included in Pro.
  • Enterprise pricing is not published and requires contacting sales.
  • Token-based billing can make cost forecasting harder than flat per-MAU pricing for high-traffic apps.

Cross-shopped

What people choose instead of Logto

Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.

  • Logto logo
    Logto
    vs
    Ory logo
    Ory

    Ory: Ory is another open-source identity infrastructure platform with similar self-hosted and cloud options.

  • Logto logo
    Logto
    vs
    Auth0 logo
    Auth0

    Auth0: Auth0 is a widely used commercial identity-as-a-service platform with comparable SSO and MFA features.

Pricing

What Logto costs

Taken from the vendor's own pricing page. Prices move, so check before you buy.

Free

Free

  • Up to 50,000 MAU
  • 50K tokens included
  • 3 applications
  • 3 social connectors
  • 1 webhook
  • 3-day audit log retention

Pro

$24 /mo

  • Unlimited MAU and applications
  • 3 included API resources
  • Passkey sign-in
  • 10 webhooks
  • 14-day audit log retention

Capabilities

Features

  • Prebuilt sign-in UI

    Drop-in authentication flows for web and mobile apps

  • Social connectors

    Sign in with Google, GitHub, and other social identity providers

  • Role-based access control

    Define roles and permissions for users and organizations

  • Multi-factor authentication

    Add MFA methods to protect user accounts

  • Machine-to-machine apps

    Issue tokens for service-to-service authentication

  • Audit logs

    Track authentication and authorization events

Answered, with sources

Questions people ask

Each answer names the page it came from, so you can check it rather than take our word for it.

What does Logto cost?

Logto offers a Free plan at $0/month, a Pro plan starting at $24/month with 50K free tokens included, and a custom-priced Enterprise plan. Extra add-ons like RBAC or MFA are billed separately on Pro.

Source
Is there a free plan, and what are its limits?

Yes. The Free plan supports up to 50,000 monthly active users, 3 total applications, 1 machine-to-machine app, 3 social connectors, 1 webhook, and 3-day audit log retention.

Source
How is usage metered?

Logto uses token-based billing: only access tokens issued for authentication and authorization activity are counted, rather than charging purely per MAU.

Source
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Softwr does not host reviews and shows no star rating for Logto, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.

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