Aspen

What it does

Aspen is a free-to-use, no logging required API testing app for macOS. It is specifically made to meet the needs of testing REST APIs, and with the help of AI, instantly help with integrations by generating data models, OAS and integration code.

Aspen: Streamline API testing on macOS with AI. No login, focused on REST APIs. Free and user-friendly. Download today!

Test APIs locally within a super-optimized native Mac App and speed up API integrations with the help of our AI assistant. No login required! Aspen is a free API-testing native app for macOS. Built with ZERO trust in mind, there is no login required to run API test. It is specifically made to meet the needs of testing REST APIs, and with the help of AI, instantly help with integrations by generating data models, OpenAPI Specs and generating integration code. Aspen is completely free. Simply put in the parameters you want to test and get results in less than a second. Use the AI Companion Alfred to speed up integrations and development. With the new Collections feature in Aspen, you can…from getaspen.io

• 
  OsaurusJul 2026 · osaurus.ai · ▲534

  Open source agents that run 100% locally on your Mac

• 
  TestSprite Beta 2024 · ▲506

  Fully automate software testing end-to-end using AI

• 
  Sparrow2025 · sparrowapp.dev · ▲456

  The lightest and fastest platform for API testing

• 
  API_TESTER2025 · apps.apple.com · ▲249

  Test your APIs right from the macOS menu bar

• 
  Timber.io2017 · timber.io · ▲318

  Log better. Solve problems faster.

• 
  Paw 32016 · ▲336

  The most advanced API tool for Mac

• 
  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 17d ago · spira.ai

• 
  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 16d ago · rill.love

• 
  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 18d ago · tej.as

• 
  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 20d ago · stillwet.art

• 
  Onepin▲384

  AI voiceover with every name, price and date said right

  AI · 30d ago · onepin.ai

• 
  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 28d ago · world.pixverse.video

• 
  Amie▲1,334

  Turn meeting notes into automated workflows. Handle meetings, summaries, todos and emails (soon) with your AI personal assistant.

  Work · 2024 · amie.so

• 
  Findr▲1,296

  Search all your apps, at once

  AI · 2024 · usefindr.com

• 
  Notion Calendar▲1,199

  Beautifully designed for your work and life

  Work · 2024 · notion.so

• 
  Huudle AI Project Assistant▲1,070

  Connect meetings, track to-do, get aligned

  AI · 2024 · huudle.io

• IM
  I made a website to find best bus seat to avoid the sun while traveling▲963

  Sit in Shade - Discover the optimal seat to stay in the shade during your journey. Sit In Shade provides real-time sun exposure data and route visualization.

  Life & fun · 2024 · sitinshade.com

• 
  Letterly▲937

  Turn your speech into well-written text

  AI · 2024 · letterly.app