Automated cost tracking and budget enforcement for modern engineering teams. Eliminate AI overspending before it happens.
Trusted by 500+ engineering teams
24
Daily Cost Tracking
$1,284.50
Three ways AI agents destroy your margins behind closed doors.
When API cost per request exceeds your margins, every new user makes you poorer. More agents, more burn — and you can't see which one is bleeding.
Server costs are predictable. AI costs aren't. One chatty agent or viral prompt can torch your cash reserves overnight without warning.
You see the OpenAI bill, but not which agent caused it. Without per-agent tracking, you're flying blind on what to optimize or shut down.
Most teams don't find out until they get the bill.
Every chat, every summary, every auto-generated response costs you money. If your agents rely on long-context or high-frequency calls, those costs don't grow linearly — they compound. And the bill doesn't care whether you're making revenue.
A single misconfigured agent can burn through your entire monthly budget in hours. Without real-time guardrails, you won't know until you see the invoice — and by then, it's too late.
You have 10 agents in production. One is costing 80% of your spend. Do you know which one? Without per-agent cost attribution, you're guessing. And guessing doesn't scale.
Take command of your AI infrastructure costs with precision tools built for modern teams.
Monitor microsecond cloud expenditures across AWS, GCP, and Azure from a single pane of glass.
Automatically throttle expensive models or shut down rogue resources when hard limits are hit.
Isolate costs by department, environment, or customer. Perfect for complex SaaS architectures.
Get notified the second costs spike or budgets are reached. Stay ahead of overruns.
Three steps. Five minutes. Full cost visibility and enforcement.
Change your OpenAI base_url to your CostGuard proxy. One line of code. Your existing SDK stays the same.
Pass X-CostGuard-Project header with each request. We capture token usage and calculate cost per project automatically.
Set budget limits per project. We'll block requests that exceed your threshold — before they hit OpenAI and cost you money.
from openai import OpenAI
# Point to CostGuard proxy
client = OpenAI(
api_key="your-openai-key",
base_url="https://your-proxy.fly.dev/v1"
)
# Use exactly like before
response = client.chat.completions.create(
model="gpt-4",
messages=[...],
extra_headers={"X-CostGuard-Project": "my-project"}
)We know API keys are sensitive. Here's exactly how we handle them.
Our proxy adds <50ms. Your users won't notice. Your agents stay fast.
API keys are encrypted at rest. We never store prompts or responses.
We forward requests to OpenAI unchanged. No data modification, no vendor lock-in.
Drop-in replacement. If OpenAI clients work today, they work with CostGuard.
Scale your cloud infrastructure with confidence.
For side projects and experimentation.
For growing engineering teams.
For organizations at scale.
Everything you need to know about CostGuard.
Point your OpenAI client to our proxy URL instead of api.openai.com. We intercept requests, extract metadata, log token usage and costs, then forward to OpenAI. Responses are passed through unchanged — we're fully byte-compatible with OpenAI's API.
Your AI agents should make money, not burn it. Get cost visibility and budget enforcement in under 5 minutes.
No credit card required · Free tier available · Setup in minutes