Aspen — Free API Testing for macOS records 0 monthly visits with -100% month-over-month growth and Free pricing. Postman records 1,764,877 monthly visits with -7.6% growth and Freemium pricing.
Test REST APIs locally on Mac with an AI companion that writes your integration code
Design, test, and govern APIs — now with AI agents in the loop
| Dimension / Metric | | |
|---|---|---|
| Official Domain | getaspen.io | postman.com |
| Pricing Model | Free | Freemium |
| Monthly Visits | 0 (0) | 1.76M (1,764,877) |
| MoM Traffic Delta | -2.58K (-100%) | -144.52K (-7.6%) |
| Primary Market & Share | 🌐 Global (—) | 🇮🇳 India (22.9%) |
| Direct Visits / mo | 0 | 580.23K |
| User Rating | 4.6 | 4.7 |
| Supported Platforms | Website | Website |
Test REST APIs locally on Mac with an AI companion that writes your integration code
Run API requests inside a native Mac app without creating an account, with all operations performed on your machine.
Generate data models, OpenAPI specifications, and integration code from your API responses to speed up development.
The tool is optimised for REST APIs, so requests return results in under a second without protocol overhead.
Organise, import, export, and share API requests, with Postman import so existing collections come across easily.
Design, test, and govern APIs — now with AI agents in the loop
A multi-protocol client with collections, environments, variables, and reusable requests that works for local debugging and for driving automated test suites.
Generates assertions automatically, supports data-driven runs with exported datasets, and executes tests locally, in the cloud, or from CI pipelines via the Postman CLI.
Agent Mode, the Postman CLI agent skills, and a Model Context Protocol server let coding assistants build collections, write tests, and trigger API workflows from inside the editor.
A structured, queryable map of an organization's APIs, collections, and dependencies that lets agents find the right service and understand what a schema change would break.
SpecialistIntegrates API testing and development directly inside your code editor, but lacks Postman's dedicated workspace collection management and documentation publishing.
SpecialistIntegrates API testing and development directly inside your code editor, but lacks Postman's dedicated workspace collection management and documentation publishing.
SpecialistExcels at autonomous multi-file code generation and repository-wide understanding, but is not purpose-built for manual API endpoint testing.
SpecialistExcels at autonomous multi-file code generation and repository-wide understanding, but is not purpose-built for manual API endpoint testing.
Free / Open-sourcePowerful visual workflow automation and API integration builder, but lacks Postman's granular API request inspection and documentation features.
Free / Open-sourcePowerful visual workflow automation and API integration builder, but lacks Postman's granular API request inspection and documentation features.
Free / Open-sourceOpen-source control plane for orchestrating coding agents
SpecialistAutomates end-to-end testing using plain language agents, but lacks Postman's manual debugging and environment variable management tools.
SpecialistOffers superior test case management and CI integration for QA workflows, but lacks native API request crafting and mocking tools.
SpecialistOffers superior test case management and CI integration for QA workflows, but lacks native API request crafting and mocking tools.
SpecialistBrings model-agnostic AI coding assistance directly into your IDE, but does not provide Postman's structured API collection management.
SpecialistContext-aware AI that plans, codes, tests, and documents across your engineering workflows
SpecialistContext-aware AI that plans, codes, tests, and documents across your engineering workflows
AI-augmented quality platform for web, mobile, API and desktop testing
SpecialistExecution-backed code review that runs real API, UI and security tests on every pull request
Agentic end-to-end testing that writes, runs and heals your test suite
Agentic end-to-end testing that writes, runs and heals your test suite
Write end-to-end test automation in plain English, no code required
Write end-to-end test automation in plain English, no code required
