Rate limiting for your API, one request away.

Skip standing up Cloudflare or writing your own counter logic. Drop one HTTP call in front of your backend. Self-hosted infrastructure, written in Rust for low latency and a small resource footprint.

# the one line your backend asks before handling a request
curl -X POST https://rate-limit-api-damp-smoke-2694.fly.dev/v1/check \
  -H "Content-Type: application/json" \
  -d '{"key":"rlk_..."}'

# response
{ "allowed": true, "remaining": 42 }