Grammarly

aid: grammarly
name: Grammarly
description: Grammarly is an AI writing-assistance company whose enterprise developer platform exposes a set of REST APIs
  that bring Grammarly's writing intelligence into an organization's own applications, business-intelligence systems, and
  IT tooling. The Grammarly APIs cover writing-quality scoring, AI generated-content detection, plagiarism detection, communication
  analytics, and license management, all secured with OAuth 2.0 client credentials and scoped permissions against the base
  URL https://api.grammarly.com/ecosystem/api/. Certified Readability Score and Tone Analysis APIs are announced as coming
  soon. Grammarly was surfaced as a portfolio company of IVP.
url: https://raw.githubusercontent.com/api-evangelist/grammarly/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
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.grammarly.com/favicon.ico
x-type: company
x-source: vc-portfolio
x-backed-by:
- ivp
x-tier: enriched
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Artificial Intelligence
- Writing Assistance
- Productivity
- Natural Language Processing
- Analytics
- Content
- Authentication
- Enterprise
tags_raw:
- Company
- Ai
- Writing Assistance
- Productivity
- Natural Language Processing
- Analytics
- Content
- OAuth
- Enterprise
apis:
- name: Grammarly Analytics API
  description: Programmatic access to Grammarly usage and communication-performance analytics for integration into business-intelligence
    systems.
  humanURL: https://developer.grammarly.com/
  baseURL: https://api.grammarly.com/ecosystem/api/
  properties:
  - type: Documentation
    url: https://developer.grammarly.com/
  - type: GettingStarted
    url: https://developer.grammarly.com/your-first-api-request.html
- name: Grammarly License Management API
  description: Allocate and reallocate Grammarly licenses from software asset management / IT-governance tooling.
  humanURL: https://developer.grammarly.com/
  baseURL: https://api.grammarly.com/ecosystem/api/
  properties:
  - type: Documentation
    url: https://developer.grammarly.com/
- name: Grammarly Writing Score API
  description: Score content on correctness, engagement, clarity, and delivery for organizational content governance (Beta).
  humanURL: https://developer.grammarly.com/
  baseURL: https://api.grammarly.com/ecosystem/api/
  properties:
  - type: Documentation
    url: https://developer.grammarly.com/
- name: Grammarly AI Detection API
  description: Detect AI-generated content and help demonstrate original authorship (Beta).
  humanURL: https://developer.grammarly.com/
  baseURL: https://api.grammarly.com/ecosystem/api/
  properties:
  - type: Documentation
    url: https://developer.grammarly.com/
- name: Grammarly Plagiarism Detection API
  description: Detect plagiarism against published sources to help teams produce original work (Beta).
  humanURL: https://developer.grammarly.com/
  baseURL: https://api.grammarly.com/ecosystem/api/
  properties:
  - type: Documentation
    url: https://developer.grammarly.com/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.grammarly.com
- type: DeveloperPortal
  url: https://developer.grammarly.com/
- type: Documentation
  url: https://developer.grammarly.com/
- type: APIReference
  url: https://developer.grammarly.com/
- type: GettingStarted
  url: https://developer.grammarly.com/your-first-api-request.html
- type: Support
  url: https://support.grammarly.com/
- type: Blog
  url: https://www.grammarly.com/blog/
- type: GitHubOrganization
  url: https://github.com/grammarly
- type: Pricing
  url: https://www.grammarly.com/plans
- type: SignUp
  url: https://www.grammarly.com/signup
- type: TermsOfService
  url: https://www.grammarly.com/terms-of-service
- type: PrivacyPolicy
  url: https://www.grammarly.com/privacy-policy
- type: StatusPage
  url: https://status.grammarly.com
- type: TrustCenter
  url: security/grammarly-trust-center.yml
- type: Compliance
  url: https://www.grammarly.com/security
- type: Security
  url: https://hackerone.com/grammarly
- type: Authentication
  url: authentication/grammarly-authentication.yml
- type: OAuthScopes
  url: scopes/grammarly-scopes.yml
- type: Packages
  url: packages/grammarly-packages.yml
- type: SDKs
  url: packages/grammarly-packages.yml
- type: WellKnown
  url: well-known/grammarly-well-known.yml
- type: SecurityTxt
  url: well-known/grammarly-security.txt
- type: LLMsTxt
  url: llms/grammarly-llms.txt
- type: Conventions
  url: conventions/grammarly-conventions.yml
- type: Lifecycle
  url: lifecycle/grammarly-lifecycle.yml
- type: Deprecation
  url: lifecycle/grammarly-lifecycle.yml
- type: Conformance
  url: conformance/grammarly-conformance.yml
- type: DomainSecurity
  url: security/grammarly-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/grammarly-vulnerability-disclosure.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence