# Prolific

**Canonical:** https://apis.io/providers/prolific-research/  
**Website:** https://www.prolific.com  
**APIs profiled:** 10

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).

## Kin Score — 38.4 / 100 (thin)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 38.4).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 55.5 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 19.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (10)

- **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.

## Agentic access (1)

- **Prolific Research Agentic Access** — 49 operations · 25 acting

## Security (2)

- **Prolific Research Authentication** — apiKey · 1 scheme
- **Prolific Research Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Prolific Research Plans Pricing**

## Tags

Research, Participant Recruitment, Surveys, Human Data, Crowdsourcing, Data Annotation, AI Training

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/prolific-research/). Scores are computed from the provider's own public artifacts under a published rubric.