Pricing
Five free checks a day. Pro when you need more.
The website detector stays usable without an account. Pro is a paid web quota after Stripe checkout. The HTTP API is a separate paid-key product — not a free tier.
- 5 successful checks per day
- 10–1,200 words per check
- Sentence-level pattern signals
- No signup, no account
- Submitted text is never stored
- Failed requests never count
Pro
100 checks / day
$9 /month
- 100 successful checks per day
- Same sentence-level method label
- Checkout on Stripe; no draft text is sent to billing
- Text is still never stored
- Cancel any time from the Stripe receipt
- Not a detector bypass or authorship proof
API keys
Programmatic detection at POST /api/v1/detect is paid access only. There is no free API tier. See quotas and the API reference.
What this is not
Pro does not prove authorship, raise a detector pass rate, or bypass Turnitin, GPTZero, Copyleaks, or any other checker. Results stay probabilistic review cues. Operated by MentalCraft LLC.