Dev tools · alternatives · 2026
24 alternatives to Open-source OAuth service for 40+ APIs
Nango (https://github.com/NangoHQ/nango) provides pre-built OAuth flows, secure token storage and automatic refreshes for 40+ APIs and counting. Why we built Nango: We built Nango to solve the pain of accessing OAuth APIs. Despite OAuth being a standard protocol in theory, it remains a major burden to implement it, even with the help of a library. You still need to add endpoints and logic to your app for the server-side dance, implement token refreshes, build & secure your token storage, deal with redirects on the frontend etc. But the worst part is that (almost) every…
Nango is an open-source OAuth service that handles authentication flows, token storage, and automatic refresh for over 40 APIs. Built for developers integrating multiple third-party services, it eliminates the… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Open-source OAuth service for 40+ APIs launched in 2023; newer entries below may have overtaken it.
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Build product integrations with AI. Contribute to NangoHQ/nango development by creating an account on GitHub.
2020 · github.com · its alternatives →
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Open SaaS▲505Open-source & 100% free React & Node.js SaaS starter
2024 · github.com · its alternatives →
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Add open source login to any Next.js and React single page app (SPA) using free open source.
2021 · ory.dev · its alternatives →
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Open SaaS 2.0▲438I launched Open SaaS about a year and a half ago and surprisingly it’s become one of the most popular free SaaS boilerplate starters on github (https://github.com/wasp/open-saas). After 2 years of work total, I’m pleased to launch what I’m calling “Open SaaS v2.0”. Here’s a breakdown of all the features and updates I’ve made to it over time: * New Big, Shiny Things for v2.0 * - Complete redesign with Shadcn UI for a modern and consistent look (themeability coming soon...). - Script that autogenerates an LLM-friendly version of the documentation…
2025 · opensaas.sh · its alternatives →
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FireCMS 2.0▲101A CMS based on Firebase. The missing piece for your project!
2023 · firecms.co · its alternatives →
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Contribute to nicois/nango development by creating an account on GitHub.
2022 · github.com · its alternatives →
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SuperTokens▲146Open source email & password auth for developers
2020 · supertokens.com · its alternatives →
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MCP-Billing▲112Self-hosted Next.js 15 boilerplate: OAuth 2.1 + PKCE, API key management, Stripe usage-based billing with explicit metering decisions, Redis rate limiting. 300 tests. No revenue share. https://mcp-billing.com
Jul 2026 · mcp-billing.com · its alternatives →
- 11OI
2013 · oauth.io · its alternatives →
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Instantly generate openapi (OAS) 3.0.0 REST + GraphQL APIs
2019 · github.com · its alternatives →
- 13HO
Ory Hydra is the open-source, OpenID Certified® OAuth 2.0 server and OpenID Connect provider. Cloud-native, API-first, and built for scale.
2019 · gethydra.sh · its alternatives →
- 14OS
I’m Rishabh and the co-founder and CTO at https://supertokens.com (YC S20). We offer open-source user authentication and we just released our user roles product for companies implementing authorization. Our users are web developers, and a prominent and adjacent pain point for our users is authorization. Developers typically implement two independent solutions for authentication and authorization. Offering AuthN and AuthZ in a single solution is something we’ve been thinking about for the last few years. Quick primer, authentication is knowing who the user is, and authorization is…
2022 · its alternatives →
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Hello HN, I’ve always loved building frontend-only apps—those you can prototype over a weekend, host for free on GitHub Pages, and scale to millions of users. Unfortunately, AI-enabled apps complicate things, as exposing your OpenAI key to the world is obviously a no-go. This also means mobile developers often have to run their own servers. That’s why I built ServerlessAI, an API gateway that lets you securely call multiple AI providers directly from client side using OpenAI-compatible APIs. You can authenticate users through any identity provider, like Google or Apple, and set per-user…
2024 · serverlessai.dev · its alternatives →
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Hey HN! Happy to finally launch Stack. We made it because we like to put apps into production quickly, and authentication & user management was taking up way too much time. We have components like and that automatically adapt to whatever theme & design system you're using. Check the blog post to see the example with Radix UI and Joy UI. Also, there's an admin dashboard for monitoring and editing accounts. Stack is 100% AGPL/MIT-licensed, so you can self-host it. Cheers!
2024 · stack-auth.com · its alternatives →
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adminMongo▲117An open source admin user interface for your MongoDB
2017 · adminmongo.markmoffat.com · its alternatives →
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Simple online database service in the cloud with NoSQL, REST API, low code javascript hooks, MongoDB support and more. Perfect for API automation, custom development, enterprise, backoffice, serverless backends, database driven websites. It provides easy collaboration and data management with secure
2016 · restdb.io · its alternatives →
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x402▲119Hi HN – excited to announce x402, initially developed by Coinbase (YC 12) x402 lets any HTTP API charge per request without issuing API keys or storing credit cards. Buyers (humans or AI agents) keep funds in their own wallet and dynamically discover compatible endpoints, call them as usual, and automatically pay a microtransaction in USDC or other tokens to settle. 90 second demo: https://www.youtube.com/watch?v=PV-L2AfLhJg Problem: Every time we want to use a new API we have to: find the service online create a developer account, copy a secret key into env vars, pre-fund or…
2025 · x402.org · its alternatives →
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A full featured, stand-alone, high-performance HTTP server and client written entirely in plain Java - FusionAuth/java-http
2022 · github.com · its alternatives →
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I, like Andrej Karpathy, became super frustrated by how annoying it was to deploy projects that were previously an absolute joy to make with Claude Code. That is why I made open-passkey, an MIT licensed passkey repo with support for 33 languages and frameworks (examples included) that makes adding simple secure auth to a project easy. We are also releasing gateway (https://gateway.locke.id) a "backendless" hosted auth server that frontend apps can consume for free so that you can ship a React or Angular app using a CDN like Netlify without needing to configure a server at all. We…
Apr 2026 · github.com · its alternatives →
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This is an educational reference implementation showing how to build reasonably secure, standards-compliant authentication from first principles on Cloudflare Workers. Stack: Hono, Turso (libSQL), PBKDF2-SHA384 + normalization + common-password checks, JWT access + refresh tokens with revocation support, HTTP-only SameSite cookies, device tracking. It's deliberately minimal — no OAuth, no passkeys, no magic links, no rate limiting — because the goal is clarity and auditability. I wrote it mainly to deeply understand edge-runtime auth constraints and to have a clean Apache-2.0 example that…
Feb 2026 · github.com · its alternatives →
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I built Nocaptcha after getting frustrated with traditional CAPTCHAs both as a user and developer. WebAuthn passkeys offered a promising alternative that's both more secure and user-friendly. What makes Nocaptcha different: - Uses WebAuthn standard instead of puzzle-solving - No need for users to remember passwords or solve puzzles - Open source Current limitation: Working with W3C WebAuthn Community Group on true passkey disposal for this use case. Looking for feedback particularly on: 1. Integration experience 2. User experience compared to traditional CAPTCHAs
2024 · github.com · its alternatives →
- 24IM
2016 · pesfandiar.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →