Postman records 1,764,877 monthly visits with -7.6% month-over-month growth and Freemium pricing. Prolific records 18,697,671 monthly visits with -1.8% growth and Paid pricing.
Design, test, and govern APIs — now with AI agents in the loop
High-quality human data for AI training, evaluation, and research
| Dimension / Metric | | |
|---|---|---|
| Official Domain | postman.com | prolific.com |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 1.76M (1,764,877) | 18.7M (18,697,671) |
| MoM Traffic Delta | -144.52K (-7.6%) | -352.04K (-1.8%) |
| Primary Market & Share | 🇮🇳 India (22.9%) | 🇺🇸 United States (48.8%) |
| Direct Visits / mo | 580.23K | 12.98M |
| User Rating | 4.7 | 4.6 |
| Supported Platforms | Website | Website |
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.
High-quality human data for AI training, evaluation, and research
Filter participants by detailed demographic, professional, and behavioural criteria and reach narrow or representative samples rather than a generic crowd.
Collect human preference data for model fine-tuning, run safety evaluations and red-teaming, and use a feedback API to plug humans into automated pipelines.
Attention checks, honesty screening, and approval workflows help filter out careless or fraudulent responses before you analyse results.
Publish a study and begin collecting responses quickly, with tooling that supports screening, quotas, and longitudinal designs.
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.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
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.
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
Enterprise-grade data annotation and AI alignment workforce, but less self-serve for academic study recruitment and casual surveys.
SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models
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.
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
