OpenAI-compatible proxy

Hard budget limits for OpenAI

Drop-in proxy that enforces spend limits, tracks every request, and blocks when you hit your budget. Ship AI features without fear.

Get started in 30 seconds

$curl -X POST costshield.dev/api/proxy/v1/chat/completions ...

Get API Key Read the docs

Budget enforcement

Real-time tracking

~10ms latency

bash

curl -X POST https://costshield.dev/api/proxy/v1/chat/completions \
  -H "Authorization: Bearer cs_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Hard Budget Limits

Set monthly or per-project limits. Requests automatically blocked when budget is reached. No surprises.

Real-Time Analytics

Track spend by model, endpoint, and time. Export data via API. Full visibility into your AI costs.

Drop-in Compatible

Change two lines of code. Works with OpenAI SDK, LangChain, and any OpenAI-compatible client.