tool · classifier · live api
Spam probability tester.
Updated May 12, 2026
Paste a suspicious comment, lead, signup bio, or support message. The browser sends it directly to /v1/predict using your key; Siftfy does not store request bodies.
request
How to use the score
- Contact forms: block at 0.85+, queue 0.50-0.85, deliver below 0.50.
- Comments: hold borderline posts for moderation; do not silently delete regular contributors.
- Signups: combine content score with email verification and rate limits.
For production code, start with FastAPI, Next.js, or contact-form patterns.