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Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.
🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more.
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
Connect your agents & product to 1,000 APIs.
A free, open-source developer workspace. Snippets, notes, HTTP requests, calculations, and dev tools in one local-first app.
Community hub for Requestly API Client — bugs, feature requests, and roadmap. The privacy-first Postman alternative.
A RWKV management and startup tool, full automation, only 8MB. And provides an interface compatible with the OpenAI API. RWKV is a large language model that is fully open source and available for commercial use.
The power of curl, the ease of use of httpie.
A simple API client (postman like) in your terminal
OpenAI API + Ruby! 🤖❤️ GPT-5 & Realtime WebRTC compatible!
Cortex - Generates interactive API documentation, typed SDKs, and MCP servers from OpenAPI, AsyncAPI, GraphQL, gRPC, OpenRPC, and Markdown.
Developer-first OpenSource API DevTool, Postman/Insomnia alternative.
Automated API Testing and Quality Assurance
A library for financial options pricing written in Python.
A HTTP API client for the terminal
Python API client for AI providers that intends to replace LangChain and LangGraph for most common use cases.
⚡️ A community driven PHP client for DeepSeek AI, designed to bring clean API access, fluent developer experience, and framework-friendly integration to PHP applications.
An R package 📦 making it easy to query, preview, download and preprocess multiple kinds of spatial data 🛰 via R. All beta.
Python E-Trade API Wrapper
Ruby client library for Dropbox API v2
Python client for Chess.com Published-Data API
Official CoinPaprika API Python client — coin prices, OHLCV, exchanges, and global market stats.
An unofficial JS/TS client for the Readwise Reader API 📚
Official DexPaprika Python SDK: Pythonic access to cross-chain DEX data, prices, and pools with type hints and caching.
Python client library to give traders, quants, and analysts access to forex macroeconomic data via the FXMacroData API.
Official Python SDK for source-timestamped OilPriceAPI energy data with typed recovery and executable capability metadata