Prolific
Prolific is an online research participant recruitment platform that connects researchers and AI teams with a large, vetted pool of human participants for surveys, experiments, and data annotation. The Prolific API is a versioned REST interface (https://api.prolific.com/api/v1) authenticated with an API token that lets researchers programmatically create and publish studies, review and approve submissions, manage participant groups, projects and workspaces, apply demographic filters and requirements, pay bonuses, message participants, and subscribe to event webhooks (hooks).
Prolific publishes 10 APIs on the APIs.io network, including Bonuses API, Filters API, Hooks API, and 7 more. Tagged areas include Research, Participant Recruitment, Surveys, Human Data, and Crowdsourcing.
Prolific’s developer surface includes authentication, documentation, engineering blog, and 8 more developer resources.
Kin Score
APIs 10
Individual APIs this provider publishes, each with its own machine-readable definition.
Prolific Bonuses API
Bulk bonus payments to participants.
Prolific Filters API
Demographic and screening requirements and eligibility counts.
Prolific Hooks API
Event webhook subscriptions and signing secrets.
Prolific Messages API
Communicate with participants.
Prolific Participant Groups API
Saved, dynamic groups of participant IDs used as allowlist/blocklist filters.
Prolific Projects API
Organize studies within a workspace.
Prolific Studies API
Create, publish, and manage research studies.
Prolific Submissions API
Review, approve, reject, and return participant submissions.
Prolific Users API
Authenticated account and user identity.
Prolific Workspaces API
Top-level containers that hold projects, fund studies, and scope teams.
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Open Collections 1
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Prolific API
OPEN COLLECTIONPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Prolific Research Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Prolific Research Finops
FINOPSSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API