Does sipi.bot Charge Per API Call?
No. Both hosted plans include unlimited transaction evaluations. sipi.bot is the one bill in your stack that can't surprise you.
The pricing model
Team: $99/month, unlimited evaluations.
Business: $499/month, unlimited evaluations.
No per-call fees, no metering, no overage tiers.
Why flat-rate matters for agents
Agents generate unpredictable call volume — retries, fan-out, spikes. Metered pricing punishes exactly the workloads a firewall exists to stop.
Flat-rate means a runaway agent costs you nothing extra on the firewall bill.
The free option
Self-host the MIT core and evaluations are free forever by definition.
At a glance
| Plan | Evaluations | Metering | Overage |
|---|---|---|---|
| Self-host | Unlimited | None | None |
| Team $99/mo | Unlimited | None | None |
| Business $499/mo | Unlimited | None | None |
FAQ
What counts as an evaluation?
Each call to the transaction decision endpoint — whether it returns APPROVED, BLOCKED, or FLAGGED.
What if my agents generate millions of calls?
Unlimited evaluations — that's the point of flat-rate.
Is there a free trial?
The playground is free to try, and the MIT core is free to self-host.
Related
Stop the next $12,400 night.
One API call (or MCP tool) in front of every agent transaction — APPROVED, BLOCKED, or FLAGGED, deterministic, ~5 ms, fully logged.
See plans — from $99/mo Try a live check