Tool Usage API
Free tier: 100 requests/day. Paid: $0.01 per call. Keep the web tools free for everyone.
Create free API key
Example request
curl -X POST https://aifreeseotools.com/api/v1/tools/grammar-fixer \
-H "Authorization: Bearer aifst_live_…" \
-H "Content-Type: application/json" \
-d '{"text":"Their going to the store"}'White-label
Agency plan at $49/month — custom subdomain, logo, no “Powered by” bar.
White-label plans