# Appen

**Canonical:** https://apis.io/providers/appen/  
**Website:** https://appen.com/  
**APIs profiled:** 1

Appen provides high-quality training data and data annotation services for AI models, leveraging a global crowd of over 500,000 contributors. With 30 years of experience, they offer data products across speech, vision, language, and structured data, supporting enterprises in building reliable AI systems. Their platform includes tools for data collection, labeling, validation, and evaluation, ensuring compliance and security with SOC 2 and ISO 27001 certifications.

## Kin Score — 39.1 / 100 (thin)

Scored 2026-10-17 under rubric 0.24.0. Trend: flat (+0.1 from 39.0).

| Facet | Score |
|---|---|
| Discoverability | 73.2 |
| Contract Quality | 63.8 |
| Contract Governance | 22.0 |
| Operational Transparency | 21.1 |
| Developer Ergonomics | 42.3 |
| Access Clarity | 10.5 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 19.1 (matched via fallback).

## Agent readiness — 29.0 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | derived |
| 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 |

## APIs (8)

- **Appen AI Data Annotation Platform API** — Appen AI Data Annotation Platform (ADAP) API
- **Appen Download API** — Generate and download reports for either a single job or an entire project, and download datasets from projects. - **Choose scope with exactly one of:** - jobId: download a Job-...
- **Appen Internal Contributors API** — The Internal Contributors API from Appen — 12 operation(s) for internal contributors.
- **Appen Jobs API** — Job management operations for creating, configuring, and controlling data annotation workflows. - **Job Lifecycle Management:** - **Create Jobs**: Initialize new annotation task...
- **Appen Projects API** — Project management operations for organizing and structuring your data annotation workflows. - **Project Structure:** - Projects serve as containers for organizing related jobs ...
- **Appen Route Units API** — Unit management operations for handling individual data rows and their distribution across jobs. - **Unit Operations:** - **List Units**: Retrieve and filter units within a proj...
- **Appen Test Questions API** — Test question management operations for evaluating contributor performance and ensuring quality assurance in data annotation workflows. - **Key Operations:** - **Add Test Questi...
- **Appen Upload API** — File upload operations for importing datasets and data into your projects and jobs. - **Dataset Upload Process:** - **Upload Files**: Send CSV files containing your data to exis...

## Agentic access (1)

- **Appen Agentic Access** — 32 operations · 28 acting

## Security (2)

- **Appen Authentication** — http · 1 scheme
- **Appen Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Artificial Intelligence, Data, Annotation, Training Data, Enterprise

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