Extruct AI records 54,708 monthly visits with -7% month-over-month growth and Paid, Contact for Pricing pricing. Prolific records 18,697,671 monthly visits with -1.8% growth and Paid pricing.
The company research API for AI agents
High-quality human data for AI training, evaluation, and research
| Dimension / Metric | | |
|---|---|---|
| Official Domain | extruct.ai | prolific.com |
| Pricing Model | Paid, Contact for Pricing | Paid |
| Monthly Visits | 54.71K (54,708) | 18.7M (18,697,671) |
| MoM Traffic Delta | -4.13K (-7%) | -352.04K (-1.8%) |
| Primary Market & Share | 🇺🇸 United States (30.2%) | 🇺🇸 United States (48.8%) |
| Direct Visits / mo | 8.99K | 12.98M |
| User Rating | 4.2 | 4.6 |
| Supported Platforms | Website | Website |
The company research API for AI agents
Query companies programmatically and receive structured, sourced answers that your own agents or applications can consume.
Match against a maintained business index or search the open web when the company you want is not in any list.
Define a brief with sector, size, location, and capability filters, and get back candidates rated for fit.
Every answer includes its origin, so findings can be verified and audited rather than accepted blindly.
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.
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-sourceWeb data API that turns any site into clean, AI-ready content
Free / Open-sourceWeb data API that turns any site into clean, AI-ready content
Free / Open-sourceBuild GTM systems that turn data into revenue
Free / Open-sourceWeb search API and crawler built for AI agents
Free / Open-sourceThe real-time web access layer for AI agents and deep research
Free / Open-sourceThe real-time web access layer for AI agents and deep research
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
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.
Free / Open-sourceOne GTM data API for prospecting, enrichment and AI agents
Free / Open-sourceIndependent web search and agent grounding API built on the Ahrefs index
Free / Open-sourceIndependent web search and agent grounding API built on the Ahrefs index
