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Developers
TurnitPass developer hub
API docs, keys, usage limits, and billing support for embedding TurnitPass in editors, LMS tools, and internal workflows.
Start from the workflow you need
Developer hub
Production path
Create a key, call the endpoint, track usage.
TurnitPass keeps the developer path close to the product workflow: account-owned keys, metered requests, word balance, and docs that map to live routes.
Create API key
Generate a named key from the workspace and copy it once.
Send Bearer request
Call humanizer, detector, paraphrase, citation, or bibliography routes.
Review usage
Requests roll up to word balance, endpoint logs, and future billing limits.
/humanizePOST/paraphrasePOST/detectPOST/citationcurl -X POST /api/v1/humanize
-H "Authorization: Bearer tp_live_your_api_key"
-d '{"language":"en"}'200 OK
response
142
words used
2,858
remaining
workspace
Private by default
Keys stay hashed and account-scoped.
Quickstart
Create an API key, send your first revision request, and try paraphrase or AI detection.
OpenAuthentication
Use API keys from your workspace. Revoke a key anytime without changing sign-in.
OpenAPI Reference
Humanize, paraphrase, rewrite, detect, citation, bibliography, and status endpoints.
OpenWorkspace
Manage billing, word balance, API keys, and subscription from one place.
OpenAPI Surface
Core endpoints
Authenticated
Bearer API keys
Metered
word balance
Product-ready
billing hooks
Revise
/api/v1/humanizeRevise AI-assisted text while preserving meaning.
Paraphrase
/api/v1/paraphraseRewrite and polish text in multiple modes.
Detect
/api/v1/detectReturn AI-writing signal estimates and revision notes.
Citations
/api/v1/citationFormat DOI, URL, or manual source metadata.
Use cases
What developers are building
The API is designed around the same TurnitPass workflow writers use in the browser: humanize, detect, rewrite, paraphrase, cite, and track usage.
POST /api/v1/humanizeContent platforms
Humanize AI-assisted drafts before publishing, then expose detector feedback and citation cleanup inside your editor.
POST /api/v1/paraphraseWriting tools
Add paraphrase, rewrite, and AI-writing review to existing document workflows without building the model layer yourself.
POST /api/v1/detectReview workspaces
Send submissions through detector endpoints, store review notes, and show reviewers the signals behind each estimate.
POST /api/v1/citationResearch workflows
Format citation and bibliography output for source-heavy products, student tools, and academic writing assistants.
Production detail
Limits, billing, and reliability
These are the operational rules client apps should design around before enabling TurnitPass for real users.
Authentication
Bearer API key
Workspace API keys are shown once when created and can be revoked without changing Google login.
Transform limit
1,000 words/request
Humanize, paraphrase, and rewrite endpoints share the transform word limit and deduct successful requests from balance.
Detection limit
5,000 words/request
Detector requests support longer review inputs and return estimates, review notes, and signal details.
Rate limits
50 req/min/key
Transform, detector, and status endpoints default to 50 requests per minute per key; citation routes allow 100.
Billing path
Stripe-ready
Checkout, portal, webhooks, word balance, and plan limits are wired; live Stripe keys and price IDs stay configurable.
Failure handling
Charge on success
Transform words are consumed after a successful engine response, so failed validation or engine errors do not spend words.
Production notes
Before launch
Ship checklist
Create test key
Generate a workspace API key and confirm the prefix appears only once.
Run core calls
Call humanize, detect, paraphrase, citation, bibliography, and status with the same Bearer token.
Handle errors
Map invalid_api_key, rate_limited, insufficient_words, and validation errors in your client.
Set billing
Add live Stripe secrets and price IDs when your plan table and checkout copy are final.