Top 10 fusionauth.io Competitors

jwt.io

JSON Web Token (JWT) is a compact URL-safe means of representing claims to be transferred between two parties. The claims in a JWT are encoded as a JSON object that is digitally signed using JSON Web Signature (JWS).

stytch.com

Model Context Protocol (MCP) is an open standard that bridges AI models with external data and services, allowing Large Language Models (LLMs) to make structured API calls in a consistent, secure way. This post will introduce MCP, explain why it’s valuable for connecting AI systems, compare it to existing approaches like ChatGPT plugins and manual API integrations, and dive into its recent support for OAuth-based authentication. We’ll also explore a bit of code to see MCP in action.

supertokens.com

Open Source Alternative to Auth0, Firebase Auth and AWS Cognito

logto.io

Drop-in OAuth for Node.js and Bun CLIs. Four flows (device code, authorization code + PKCE, token exchange, client credentials), plus the boring stuff: token storage, refresh, cross-process locks, keychain. Swap any piece you don't like.

clerk.com

The easiest way to add authentication and user management to your application. Purpose-built for React, Next.js, Remix, and “The Modern Web”.

descope.com

Build secure, frictionless identity journeys for your users, business customers, partners, AI agents, and MCP servers with the Descope External IAM Platform.

workos.com

The WorkOS blog delivers insights on building Enterprise Ready applications. Explore technical resources, engineering solutions, and strategies for navigating enterprise requirements.

hotjar.com

The next best thing to sitting beside someone browsing your site. See where they click, ask what they think, and learn why they drop off. Get started for free.

uservoice.com

Product managers may be the CEOs of product, but how do you lead a whole team of them? The traits that define genuinely effective product leaders.

attio.com

Supercharge your go-to-market motion by working with an Attio Expert. Get hands-on guidance to unlock your team's full potential.