Turnitin

Turnitin is an academic and research integrity company that for more than 20 years has provided plagiarism/similarity detection, AI-writing detection, online grading, and feedback tools for educators, researchers, and publishers. Its market-leading integrity services are exposed to third-party platforms through the RESTful Turnitin Core API (TCA), which lets an integrating product submit a document, generate a Similarity Report, and display it to users without leaving the host platform, plus a Learning Tools Interoperability (LTI) path for LMS integrations. TCA is SOC2 compliant and runs across international data centers. Turnitin was surfaced as a portfolio company of Norwest Venture Partners and enriched into the API Evangelist network from its public developer documentation.

Turnitin publishes 2 APIs on the APIs.io network. Tagged areas include Company, Education, EdTech, Academic Integrity, and Plagiarism Detection.

Turnitin’s developer surface includes documentation, API reference, support, engineering blog, authentication, sandbox, and 18 more developer resources.

🌐 Visit website 📡 Source on GitHub
31.3/100 thin ▬ flat Agent 16/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
2 APIs
CompanyEducationEdTechAcademic IntegrityPlagiarism DetectionSimilarityAI DetectionAssessmentResearch IntegrityPublishingLTI

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 31.3/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 9.6 / 20
Commercial Clarity 8.4 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 16/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 3 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/turnitin: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Turnitin Core API (TCA)

RESTful API for integrating Turnitin's integrity services into third-party platforms — submit a document, generate a Similarity Report, and display it to users. Authenticates wi...

Turnitin Learning Tools Interoperability (LTI)

LTI integration path for embedding Turnitin into learning management systems, as an alternative to the TCA REST surface.

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Turnitin Authentication

apiKey · 1 scheme

SECURITY

Turnitin Domain Security

TLSv1.3 · DMARC

SECURITY

Turnitin Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 Login
Login
 Sandbox
Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown
 LLMsTxt
LLMsTxt

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 Conventions
Conventions
 Lifecycle
Lifecycle

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 6

Authentication, authorization, and security posture

Security
Security
 VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 SecurityTxt
SecurityTxt
 Compliance
Compliance
 Authentication
Authentication

Operate 3

Status, limits, changes, and where to get help

Support
Support
 HelpCenter
HelpCenter
 StatusPage
StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy
 TermsOfService
TermsOfService

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: turnitin
name: Turnitin
description: Turnitin is an academic and research integrity company that for more than 20 years has provided plagiarism/similarity
  detection, AI-writing detection, online grading, and feedback tools for educators, researchers, and publishers. Its market-leading
  integrity services are exposed to third-party platforms through the RESTful Turnitin Core API (TCA), which lets an integrating
  product submit a document, generate a Similarity Report, and display it to users without leaving the host platform, plus
  a Learning Tools Interoperability (LTI) path for LMS integrations. TCA is SOC2 compliant and runs across international data
  centers. Turnitin was surfaced as a portfolio company of Norwest Venture Partners and enriched into the API Evangelist network
  from its public developer documentation.
url: https://raw.githubusercontent.com/api-evangelist/turnitin/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://www.turnitin.com/themes/turnitin/img/turnitin-icon-rgb.jpg
x-type: company
x-source: vc-portfolio
x-backed-by:
- norwest-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Education
- EdTech
- Academic Integrity
- Plagiarism Detection
- Similarity
- AI Detection
- Assessment
- Research Integrity
- Publishing
- LTI
apis:
- name: Turnitin Core API (TCA)
  description: RESTful API for integrating Turnitin's integrity services into third-party platforms — submit a document, generate
    a Similarity Report, and display it to users. Authenticates with an integration-instance API key plus the X-Turnitin-Integration-Name
    and X-Turnitin-Integration-Version headers. Processing is asynchronous (submit then poll). SOC2 compliant.
  humanURL: https://developers.turnitin.com/turnitin-core-api
  baseURL: https://developers.turnitin.com/turnitin-core-api
  tags:
  - Academic Integrity
  - Plagiarism Detection
  - Similarity
  properties:
  - type: Documentation
    url: https://developers.turnitin.com/turnitin-core-api
  - type: APIReference
    url: https://developers.turnitin.com/turnitin-core-api
  - type: Authentication
    url: authentication/turnitin-authentication.yml
  - type: Conventions
    url: conventions/turnitin-conventions.yml
  - type: Sandbox
    url: sandbox/turnitin-sandbox.yml
- name: Turnitin Learning Tools Interoperability (LTI)
  description: LTI integration path for embedding Turnitin into learning management systems, as an alternative to the TCA
    REST surface.
  humanURL: https://developers.turnitin.com/learning-tools-interoperability
  baseURL: https://developers.turnitin.com/learning-tools-interoperability
  tags:
  - LTI
  - Education
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.turnitin.com
- type: DeveloperPortal
  url: https://developers.turnitin.com/
- type: Documentation
  url: https://developers.turnitin.com/turnitin-core-api
- type: APIReference
  url: https://developers.turnitin.com/turnitin-core-api
- type: Login
  url: https://developers.turnitin.com/customer-login
- type: Support
  url: https://helpcenter.turnitin.com
- type: HelpCenter
  url: https://helpcenter.turnitin.com
- type: Blog
  url: https://www.turnitin.com/blog/
- type: GitHubOrganization
  url: https://github.com/turnitin
- type: PrivacyPolicy
  url: https://www.turnitin.com/privacy-policy-website/
- type: TermsOfService
  url: https://www.turnitin.com/terms-of-use-website/
- type: StatusPage
  url: https://turnitin.statuspage.io
- type: Security
  url: security/turnitin-vulnerability-disclosure.yml
- type: VulnerabilityDisclosure
  url: security/turnitin-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/turnitin-domain-security.yml
- type: SecurityTxt
  url: well-known/turnitin-security.txt
- type: WellKnown
  url: well-known/turnitin-well-known.yml
- type: Compliance
  url: conformance/turnitin-conformance.yml
- type: Conformance
  url: conformance/turnitin-conformance.yml
- type: Authentication
  url: authentication/turnitin-authentication.yml
- type: Conventions
  url: conventions/turnitin-conventions.yml
- type: Sandbox
  url: sandbox/turnitin-sandbox.yml
- type: Lifecycle
  url: lifecycle/turnitin-lifecycle.yml
- type: LLMsTxt
  url: llms/turnitin-llms.txt
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 10
  pass: local-v1