Defined.ai (DefinedCrowd)

aid: definedcrowd
name: Defined.ai (DefinedCrowd)
description: Defined.ai (formerly DefinedCrowd) is an AI training data platform and marketplace founded in 2015 by Daniela
  Braga, headquartered in Seattle with offices in Lisbon, Porto, and Tokyo. It provides ready-to-use datasets across speech,
  text, image, video, and multimodal, plus custom data collection, annotation, machine translation, conversational AI, LLM
  fine-tuning, and data and model evaluation services sourced from a global community of 1.6M+ vetted contributors across
  150+ markets and 500+ languages, dialects, and locales. The Defined.ai Public API (v2.0) lets enterprise customers manage
  projects programmatically — create Mean Opinion Score and Pronunciation Validation projects, upload input units, configure
  supported languages, track project status and errors, manage jobs, retrieve deliverables, and subscribe to notifications.
  Data provenance and compliance are backed by ISO 27001, ISO 27701, ISO 42001, GDPR, and HIPAA.
url: https://raw.githubusercontent.com/api-evangelist/definedcrowd/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- balderton-capital
x-tier: profiled
x-tier-reason: enriched-from-public-api
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
image: https://defined.ai/favicon.ico
tags:
- Company
- AI Training Data
- Data Marketplace
- Machine Learning
- Data Annotation
- Speech Data
- Natural Language Processing
- Crowdsourcing
- Artificial Intelligence
apis:
- name: Defined.ai Public API
  description: 'The Defined.ai Public API (v2.0) enables enterprise customers to manage AI training data projects programmatically:
    list supported languages, create and clone Mean Opinion Score and Pronunciation Validation projects, upload input units,
    edit and cancel projects and jobs, monitor project status and upload errors, retrieve deliverables and downloads, and
    manage email notification subscriptions. Authentication is a Bearer JWT in the Authorization header.'
  humanURL: https://developers.definedcrowd.com/
  baseURL: https://api.production-na01.definedcrowd.com
  properties:
  - type: OpenAPI
    url: openapi/definedcrowd-openapi-original.json
  - type: APIReference
    url: https://developers.definedcrowd.com/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/definedcrowd-domain-security.yml
- type: AgenticAccess
  url: agentic-access/definedcrowd-agentic-access.yml
- type: Authentication
  url: authentication/definedcrowd-authentication.yml
- type: Website
  url: https://www.definedcrowd.com/
- type: DeveloperPortal
  url: https://developers.definedcrowd.com/
- type: Documentation
  url: https://developers.definedcrowd.com/
- type: Blog
  url: https://defined.ai/blog
- type: Support
  url: https://defined.ai/contact-us
- type: TermsOfService
  url: https://defined.ai/terms-of-use
- type: PrivacyPolicy
  url: https://defined.ai/privacy-policy
- type: SignUp
  url: https://enterprise.definedcrowd.com
- type: LLMsTxt
  url: https://defined.ai/llms.txt
- type: ErrorCatalog
  url: errors/definedcrowd-problem-types.yml
- type: Conventions
  url: conventions/definedcrowd-conventions.yml
- type: DataModel
  url: data-model/definedcrowd-data-model.yml
- type: MCPServer
  url: mcp/definedcrowd-mcp.yml
- type: Overlay
  url: overlays/definedcrowd-openapi-overlay.yaml
- type: Conformance
  url: conformance/definedcrowd-conformance.yml
- type: Compliance
  url: https://defined.ai/about-us
- type: Lifecycle
  url: lifecycle/definedcrowd-lifecycle.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence