AI cost enforcement infrastructure
Stop paying for
what you can't see.
One line of code. Every model. No shock bills.
Connects to the providers your stack already uses
The problem
You already got the bill.
You just couldn't explain it.
Your agents hit three providers. You get one invoice. OpenAI's dashboard shows totals, not which agent, workflow, or loop ran 400 times at 3am.
No enforcement
OpenAI's spend limits only cover OpenAI. Set a $50 cap and your Anthropic fallback runs uncapped. Gemini too. Each provider is its own billing island.
No kill switch
An agent loop starts at 3am. By the time you wake up it has run 400 times. The only thing faster than a runaway agent is the bill it generates.
No visibility
Every provider gives you a total. Not a breakdown. Five agents are spending, but which one? Two hours later you're still guessing.
Observability tells you after
Dashboards are the autopsy. They tell you what happened after the bill lands. You needed the seatbelt. Not the crash report.
↑ which workflow caused this? unknown.
How it works
One proxy.
Every provider. Every call.
Zelyx sits in the call path between your application and every AI provider. It sees every request, enforces every budget, and kills every runaway loop before the bill.
Point your base URL
Point your SDK at Zelyx with your Zelyx key and proxy base URL. No SDK swap. No config file. Two lines.
api_key = "nk_…"
base_url = "api.zelyx.app/proxy/openai/v1"
Set your budgets
Set daily caps on company, team, project, model, or per-person keys. Tag traffic with headers. Budgets enforce in the call path — before the provider is billed.
X-Zelyx-Team: backend · $100/day
X-Zelyx-Project: search-api · $50/day
alert_at: 80%
Enforce before the bill
Every call is checked in real time. When a daily cap is hit, Zelyx returns HTTP 402 before the provider is called. Alerts fire at 80% — not after the invoice.
✓ call forwarded: $0.02
✗ call blocked: budget ceiling
→ alert sent. loop stopped.
The verdict engine
Every call.
A decision.
In milliseconds.
Zelyx checks every API call against your budget topology before it reaches the provider. Forward or kill. The decision happens in the call path, not after the invoice.
Get in touch
Questions about pricing?
We'd love to hear from you.
Reach out and we'll get back to you with a plan that fits your team's needs.
Contact us →From the community
“An agent looped overnight — about $800 by morning from hundreds of GPT-4o calls. I thought I'd stopped it, but the bill kept climbing until I opened the dashboard.”
Developer story · runaway agent loops
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