43.7k
Firecrawl
🔥 Turn entire websites into LLM-ready markdown or structured data using an efficient API. Easily scrape, crawl, and extract data.
Development API Web
API Tools
These open-source API tools cover GraphQL servers, backend platforms, and data pipelines. Apollo Server is a JavaScript GraphQL server for Express, Connect, Hapi, Koa, and more. Appwrite exposes REST APIs for auth, databases, and storage, and Airbyte moves data from APIs and databases into warehouses and lakes. Use the catalog to find a client, server, or integration path that matches your stack.
106 tools available
8.3k
BillionMail
BillionMail provides an open-source MailServer solution with NewsLetter and Email Marketing capabilities—fully self-hosted, developer-friendly, and free from monthly fees.
Development Self-Hosted API Tools
5.7k
OpenAuth
OpenAuth is a universal, standards-based authentication provider designed to simplify secure authentication for applications.
Authentication API Security Development
18.7k
A2A
An open protocol facilitating seamless communication and interoperability between opaque and agentic applications.
API Tools Development
21.0k
Dgraph
Dgraph is a high-performance graph database designed for real-time use cases, offering horizontal scalability and native GraphQL support.
Database Performance API
23.2k
LibreChat
LibreChat is an enhanced ChatGPT clone offering features like agents, DeepSeek, Anthropic, AWS, OpenAI integration, and more. It allows secure multi-user authentication, AI model switching, message search, and supports various AI models and tools for a comprehensive chat experience. It is open-source and self-hostable.
AI DevOps API
24.3k
Composio
Equips your AI agents & LLMs with over 100 high-quality integrations via function calling.
AI API Development Tools
11.0k
OpenLLM
A platform to run any open-source LLMs, such as DeepSeek and Llama, as OpenAI compatible API endpoints in the cloud, enabling seamless integration and deployment of language models.
AI API
5.7k
ChatGPT
An OpenAI API Free Reverse Proxy allowing access to ChatGPT without direct API calls.
API Tools Development
35.8k
Insomnia
The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE, and gRPC, featuring Cloud, Local, and Git storage.
API Development Tools
11.9k
Unleash
Open-source platform for managing and controlling feature flags to enable gradual rollouts, A/B testing, and more.
DevOps Tools API Self-Hosted
35.0k
ToolJet
A low-code platform for building business applications with a drag and drop builder, supporting integration with various databases, cloud storages, and APIs.
Development Tools Web API
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4.0k
H3
⚡️ Minimal HTTP framework built for high performance and portability, ideal for serverless environments and edge computing.
Development API Framework
10.9k
Claude Engineer
Claude Engineer is an interactive command-line interface (CLI) that leverages the power of Anthropic's Claude-3.5-Sonnet model to assist with software development tasks. This framework enables Claude to generate and manage its own tools, continuously expanding its capabilities through conversation. Available both as a CLI and a modern web interface.
Development API Tools CLI
3.0k
LimeSurvey
LimeSurvey – A powerful, open-source survey platform. It is a free alternative to SurveyMonkey, Typeform, Qualtrics, and Google Forms, making it simple to create online surveys and forms with unmatched flexibility.
Tools Analytics Self-Hosted API
32
Demo-banking
A demo application mimicking banking operations, illustrating the integration of various technologies and practices.
Development Web API Tools
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