AI spend under control.
Finally.

What you get

CapHound sits between your applications and LLM providers. Every request is intercepted, attributed, and checked against your budgets — before the token is spent.

How it works

Engineering adds four lines of config. Everything else — attribution, budgets, enforcement, reporting — is handled by CapHound.

Integration

Send this to your developer. It is the only change required.

Swap the base URL, add the CapHound key, and tag each call with the feature, team, and customer driving it. No other code changes.

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.OPENAI_API_KEY,
  baseURL: "https://api.caphound.ai/v1/openai",
  defaultHeaders: {
    "X-CapHound-Key":      process.env.CAPHOUND_KEY,
    "X-CapHound-Feature":  "image-search",
    "X-CapHound-Team":     "growth",
    "X-CapHound-Customer": customerId,
  },
});

// Everything else stays the same
const response = await client.chat.completions.create({
  model: "gpt-4o",
  messages: [{ role: "user", content: prompt }]
});

import openai

client = openai.OpenAI(
    api_key=os.environ["OPENAI_API_KEY"],
    base_url="https://api.caphound.ai/v1/openai",
    default_headers={
        "X-CapHound-Key":      os.environ["CAPHOUND_KEY"],
        "X-CapHound-Feature":  "image-search",
        "X-CapHound-Team":     "growth",
        "X-CapHound-Customer": customer_id,
    },
)

# Everything else stays the same
response = client.chat.completions.create(
    model="gpt-4o",
    messages=[{"role": "user", "content": prompt}]
)

Attribution headers

Providers

Six providers tracked in one view. Switch providers or run multiple — your FinOps dashboard shows a single unified spend picture.

Pricing is verified weekly against each provider. Cache token costs (Anthropic prompt caching, OpenAI cached input) are tracked separately.

Budgets

Set limits at any scope. When a team hits their budget, CapHound blocks the next request — before the cost is incurred. Finance gets an alert. Engineering gets a 429. Nothing slips through.

Budget scopes

Create and manage budgets in the Control Center, or via API:

curl -X POST "https://api.caphound.ai/api/v1/workspaces/{id}/budgets" \
  -H "Authorization: Bearer {token}" \
  -H "Content-Type: application/json" \
  -d '{
    "name":    "Image search — monthly",
    "scope":   "feature",
    "feature": "image-search",
    "amount":  5000,
    "period":  "monthly",
    "action":  "block"
  }'