
APIPark
OpenRouter
Eden AI
liteLLM
Merlin Unified API
Helicone AI
Portkey
OpenAI
RESTClient
Postman
Insomnia REST
HTTPie
soapUI
cURL
Advanced REST Client (ARC)
Hoppscotch
OpenRouter - A router for LLMs and other AI models
Postman - The Collaboration Platform for API Development
Eden AI - Regrouping the best AI APIs for 10mn integration in your code
Insomnia REST - Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a dev‑friendly UI, built-in automation, and an extensible plugin ecosystem.
liteLLM - One library to standardize all LLM APIs
HTTPie - CLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more.