Never get a surprise AI bill again

Stop Runaway
AI Bills

Set your API spend limit. Sleep Easy.

See How It Works
.env
# 1. Point to kil instead of OpenAI directly
OPENAI_BASE_URL=https://api.openai.com/v1
OPENAI_BASE_URL=https://openai.kil.wtf/v1

# 2. Add your kil API key
KIL_API_KEY=kil_live_abc123...

How It Works

1

Set Your Limit

Choose a daily or monthly spend cap. $20/day? $100/month? You decide.

2

Add One Line

Use our SDK: new OpenAI(kil()) — or just change your env vars. Your choice.

3

Sleep Soundly

Get alerts at 80%. Requests stop at 100%. No surprises. No $10K bills.

Simple Pricing

Start free. Upgrade when you need more.

Free

$0
  • ✓ Up to $100/mo in spend
  • ✓ Email alerts at 80%
  • ✓ 1 API key
Popular

Pro

$9/mo
  • ✓ No spend limit
  • ✓ Anomaly detection
  • ✓ 5 API keys
  • ✓ 90-day audit logs

Team

$29/mo
  • ✓ Everything in Pro
  • ✓ 5 team members
  • ✓ IP allowlisting
  • ✓ Webhooks