Your GPT agent has API keys. Civic decides what it can do with them.
The OpenAI SDK makes tool-calling simple. Civic adds rate limits, scoped permissions, and a kill switch.
The agent called the billing API 6,000 times trying to reconcile one invoice.
Just imagine, one day…
You build a finance agent using the OpenAI SDK with function calling. It has access to your billing API to pull invoices and flag discrepancies. You test it on a few invoices and it works perfectly.
A customer submits an invoice with a currency mismatch. The agent doesn't know how to handle it, so it retries the lookup with different parameters. Each retry spawns two more lookups. 6,000 API calls in 8 minutes, $580 in overage charges, and a rate-limit ban from your payment provider.
A function-calling agent with no rate limit is one bad edge case away from an expensive afternoon.
Without rate limits, one confused function call becomes thousands.
It does things you did not intend
You asked it to reconcile invoices. It hammered your billing API 6,000 times because it couldn't parse one currency field.
You cannot prove what happened
6,000 calls with varying parameters. No structured log of what triggered the loop or what each retry changed. You're reading raw API logs.
You cannot stop it fast enough
8 minutes from first retry to rate-limit ban. No circuit breaker in the SDK. The charges keep adding up until the provider cuts you off.
It gets confused and you never know
A single currency mismatch caused an infinite retry loop. The agent thought each response was a new error, not the same one.
Your GPT agent calls Civic. Civic enforces the limits you set.
Connect the OpenAI SDK through Civic in three steps
Add billing API and finance tools.
Restrict billing to read-only.
Set rate limit to 100 calls per minute.
Done. 2 tools connected:
✓ Billing — read-only, 100/min limit
✓ Finance — read-only
Your MCP URL is ready to copy.
The same scenario. Different outcomes.
Without Civic, the agent retries until the provider bans you. With Civic, it hits the rate limit and stops.
Ship safer with Civic
We'll help you implement authenticated, scoped, and auditable access without slowing down your build.