Prolific

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Tagline:Easily collect high-quality data from real people

Updated:October 22, 2026

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What is Prolific?

Prolific connects AI developers, researchers, and product teams with verified participants to collect dependable human data. Whether evaluating AI models, tuning preferences, or running behavioral studies, teams access over 300,000 active participants with precision demographic targeting and automated quality checks.

How to use Prolific?

1. Create a free account on the Prolific platform. 2. Define your study, audience criteria, and custom screening filters from 300+ demographic attributes. 3. Integrate your survey tool, data collection interface, or connect via the Human Feedback API. 4. Set participant compensation and fund your study balance. 5. Launch your study, review incoming responses, and download structured datasets.

Prolific Core Features

Vetted Participant Network

Access over 300,000 verified, active participants across 40+ countries with representative and quota sampling options.

Protocol Quality Monitoring

Runs 40+ automated checks to verify participant identity during onboarding and continuously analyze behavioral data.

300+ Demographic Filters

Target exact participant profiles, domain experts in software engineering or healthcare, and custom pre-screened audiences.

Human Feedback API & Integrations

Connect data collection tools via URL or integrate directly using the REST API and MCP server for automated agent workflows.

Prolific Use Cases

AI model evaluation, safety benchmarking, and human preference tuning (RLHF)

Academic and scientific behavioral research with representative demographic quotas

Market research and product concept validation with verified target consumer pools

Prolific Frequently Asked Questions

How does Prolific ensure data quality?

Prolific uses Protocol, a monitoring system that runs 40+ automated checks verifying identity at onboarding and analyzing behavioral responses to filter out bad actors.

What integrations are supported?

Prolific integrates with survey platforms, annotation tools, and user research software via URL, as well as providing a direct REST API and MCP server.

How does pricing work on the platform?

Platform users pay a participant reward that they set (minimum £6.00 / $8.00 per hour, recommended £9.00 / $12.00 per hour), plus a platform fee (typically 42.8% for corporate, 33.3% for academic).

Are there monthly subscription fees or contracts?

No monthly subscriptions or upfront contracts are required for standard platform access. You pay as you go by funding your study wallet as needed.

Prolific Product Background & Official Links

Prolific Pricing & Plans

Platform

flat

Pay as you go

Instant access with no monthly subscription fees
300,000+ active verified participants
300+ audience filters and custom screening
Representative and quota samples
Human Feedback API and no-code integrations
Protocol automated quality verification

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Managed Services

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Complete curated datasets delivered end-to-end
Custom sourcing campaigns and domain expert recruitment
Participant training and onboarding
Multi-stage quality assurance and dedicated project team
Shared Slack channels and custom data reporting