Open source
Actix Web
Pragmatic, fast Rust web framework with typed extractors
Backend FrameworksPowerful Rust web framework
Development
Backend & APIs
Backend frameworks, authentication, backend services, and tools for building and testing APIs.
176 tools in 4 categories
Backend Frameworks29
Open source
AdonisJS
Batteries-included TypeScript framework for Node.js apps
Backend FrameworksFull-featured Node MVC
Open source
ASP.NET Core
Open source web framework for C# apps, APIs and interactive pages
Backend FrameworksMicrosoft's web framework
Open source
Django
High-level Python framework for building database-driven web apps
Backend FrameworksBatteries-included Python
Open source
Echo
Minimalist Go web framework with built-in middleware and binding
Backend FrameworksMinimalist Go web framework
Open source
Elysia
TypeScript framework for Bun with end-to-end type safety
Backend FrameworksErgonomic Bun framework
API Development Tools82
Curated
42Crunch
Platform to find and secure MCP servers and APIs
API Development ToolsOpenAPI security platform
Freemium
Alpha Vantage
Stock market, forex and crypto data API with a free API key
API Development ToolsFree stock market API
Open source
Altair GraphQL Client
Feature-rich desktop and web client for debugging GraphQL servers
API Development ToolsFeature rich GraphQL client
Open source
Apache APISIX
Open source API and AI gateway with 100+ plugins
API Development ToolsCloud native API gateway
Open source
Apache Camel
Open source framework with 350+ connectors for integration routes
API Development ToolsOpen source integration
Curated
API Ninjas
Collection of production-ready data APIs with a free API key
API Development ToolsCollection of useful APIs
Authentication Tools13
Freemium
Auth0
Hosted login, SSO and access control for apps and AI agents
Authentication ToolsIdentity platform
Open source
authentik
Self-hosted open source identity provider for SSO and MFA
Authentication ToolsOpen source identity provider
Open source
Better Auth
Open source TypeScript auth framework with login, OAuth and plugins
Authentication ToolsOpen source TS auth
Freemium
Curated
Descope
Login and identity flows for customers, partners and AI agents
Authentication ToolsDrag and drop auth flows
Freemium
FusionAuth
Customer identity and access management, self-hosted or cloud
Authentication ToolsDeveloper friendly identity
Backend Services52
Freemium
Ably
Realtime messaging platform for chat, live apps and AI sessions
Backend ServicesRealtime messaging platform
Freemium
Open source
Freemium
Browserless
Cloud headless browsers for AI agents and web automation
Backend ServicesHeadless browser as a service
Open source
BullMQ
Open source background job and message queue for Node.js and more
Backend ServicesRedis queue for Node
Open source
Centrifugo
Self-hosted server for realtime messages and live updates
Backend ServicesScalable realtime messaging