Gate
Decide before vendor cost.
Check customer plan, model and feature access, remaining allowance, and rolling call limits at the beginning of the action.
Founding-user pilot · Agent and API products
Stop runaway agent usage before it becomes a customer or margin incident.
Agent loops, background work, and customer integrations can create traffic faster than a person can react. Put plan policy and rolling call limits at the start of the action, then meter the completed result with customer and feature context.
Pre-call entitlement decision
Rolling customer call limits
Idempotent begin and end lifecycle
Runout and anomaly signals
The immediate problem
Machine-speed usage breaks policies designed for human clicks.
A monthly allowance alone does not protect an API from bursts, retries, recursive tool use, or one customer running a large background job. You need a customer-aware decision before the work and an actual usage record after it.
Meter
Record what actually happened.
Complete the lifecycle with success or failure, tokens or custom units, provider context, and retry-safe identifiers.
Respond
Give people time to act.
Surface runout forecasts, limit state, and anomaly alerts so customers and operators can top up, upgrade, investigate, or stop.
The pilot
Guardrail one high-cost autonomous workflow.
We will instrument the path that creates the most uncertainty, then test allowed, blocked, retried, and completed cases before broad rollout.
- 01
Choose one agent action, API operation, or background workflow with customer identity.
- 02
Set an allowance, rolling limit, and the expected application response when denied.
- 03
Add customer attribution and the begin → work → end lifecycle.
- 04
Exercise allowed, rate-limited, failed, and idempotent retry scenarios together.
Strong fit
This is worth a conversation if…
- ✓Autonomous or background traffic can create meaningful cost or capacity risk.
- ✓The application can identify the customer, tenant, feature, and request boundary.
- ✓Different plans need different access, allowances, or rolling limits.
- ✓A developer can test denial and retry behavior in a bounded workflow.
Probably too early or the wrong tool
Wait if…
- ×Traffic is low, uniform, and harmless enough that a simple counter is sufficient.
- ×You want infrastructure-wide DDoS protection rather than product-plan policy.
- ×There is no customer or tenant boundary for the usage decision.
- ×You cannot define what the application should do when policy denies the action.
Clear product boundary
UsageTap enforces commercial usage policy, not every layer of API security.
The implemented path supports customer-level entitlements, allowances, rolling call-rate decisions, metering, forecasts, and alerts. Network protection, authentication, provider availability, and invoice collection remain separate concerns.
- Use UsageTap for plan-aware decisions and customer usage evidence.
- Keep gateways and infrastructure controls for network and abuse protection.
- Keep the existing provider client; wrappers are available for common SDKs and fetch.
Put a customer-aware guardrail in front of one autonomous workflow.
We will help test the policy path under allowed, blocked, failed, and retried traffic, then decide whether it deserves wider rollout.