Hound your AI bill.
Before it hounds you.
CapHound brings FinOps governance to AI spend. Attribute every dollar to the team, feature, or customer driving it. Enforce budgets in real time. End AI cost surprises at month-end.
No credit card · Up to $5K/mo on the free tier
2 items need triage— click to jump to Open risk signals.
Works with the providers you use
The Decision Engine in production
Every LLM request flows through CapHound's decision engine.
Block, modify, or allow — recorded with full Access → Budget → Optimization reasoning. Customer-level decisions live in your dashboard; CapHound never aggregates tenant data publicly.
growth-engineering hit its $3,000 monthly cap. Hard block at 429 — caller gets a clear error before any provider charge.
Workspace at 91% of budget. gpt-4o auto-downgraded to gpt-4o-mini for low-stakes traffic.
customer-support-chat within all guardrails. Logged with feature, customer, and team for chargeback.
AI costs don't drift.
They spike.
By the time the invoice arrives, the damage is already done.
Runaway requests, no early warning
A retry loop. A pagination bug. A misconfigured prompt. One mistake fires thousands of API calls before anyone sees it. Your first warning is the invoice.
Silent cost doubling on model swaps
An engineer swaps to a more capable model — for the right reasons. Per-request cost doubles overnight. No alert. No review. Just a bigger bill at month-end.
Spend concentrated in one workflow
70% of your AI bill comes from a single feature or customer. Probably. You can't prove it — there's no per-feature attribution in your provider's dashboard.
Finance asks. Engineering can't answer.
Your CFO sees a $40K AI line item and asks who's spending it. Engineering can't break it down. Both teams lose trust. The bill keeps growing.
Enforce. Attribute. Control.
CapHound doesn't just report on your AI usage — it governs it in real time.
Enforcement
Set hard limits per feature, team, or customer. When the budget hits, CapHound blocks the request. Not an alert — a block.
Attribution
Every request tagged by feature, team, environment, and customer. You know exactly what caused the spike — and who to talk to.
Routing
Define rules. CapHound routes automatically. Dev environments use cheap models. Free users hit the cheaper tier. No app changes.
Every decision,
fully audited.
Watch each request flow through Access, Budget, and Optimization checks. See exactly what was blocked, what was modified, and why — with timestamps and reasoning that finance and engineering can both read.
API key validated
Monthly limit exceeded · $5,000 / $5,000
Pipeline halted at budget
API key validated
Within limit · $4,210 / $5,000
Downgrade rule: env=dev → switch to gpt-4o-mini
API key validated · scope: production
Within customer budget · $1,840 / $5,000
No routing rules matched
Drop in.
Two lines.
CapHound mirrors the OpenAI API exactly. Change two lines of config — your existing code stays the same.
What changes
Two required lines. One optional.
Use your CapHound key
Replace your OpenAI API key with one CapHound generated for your workspace.
api_key="caphound_live_..."Point base_url to CapHound
Your requests now route through us. We forward to OpenAI/Anthropic/Gemini behind the scenes.
base_url="https://api.caphound.ai/v1"Tag with feature (optional)
OptionalAdds attribution metadata so you can break down spend by feature, team, or customer.
extra_headers={"x-caphound-feature": "chat"}That's it. Same SDK calls. Same response shape. Same models. Zero refactor.
We never see
your prompts.
CapHound operates on metadata only — model, cost, tags, and decision context. Prompts, completions, and request bodies travel directly between your application and the LLM provider.
This isn't a policy. It's how the system is built.
Put your AI layer
under control.
Start free. Add enforcement as your spend grows. No credit card required.