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Acquisition units

Billed responses report their cost inline, in the same payload as the data:
Costs are expressed in blended Revcenter Acquisition Units, never in underlying provider prices:
The unit exists so that pricing stays stable while providers change underneath. A person enrichment costs the same number of units whichever source served it.

What gets billed

Only calls that actually reach a provider. Requests rejected for a missing scope, a bad body, or an exhausted rate limit never write a cost event. Neither does a 502 — if the provider call throws, nothing is billed. Web search bills at one of two rates depending on depth: Asking for 100 results in one call is cheaper than ten paginated calls of 10, so prefer depth over pagination when you know you want the volume.

Funding sources

Every cost event records who paid for it.

platform

Revcenter’s own provider keys served the call. It counts as billable acquisition against the workspace.

workspace_byok

The workspace’s own provider key served it. The activity is recorded for visibility, but the vendor spend is already yours — it is not billable overage.
Which one applies is resolved per provider, per workspace, at request time. A workspace can bring its own key for one capability and use platform keys for another, and each call is attributed accordingly.

Reading usage

Both require the usage:read scope and cover API-key activity only — work done in the app is excluded, so these numbers reconcile against your integration and nothing else. Cost events carry the request_id of the call that produced them, which is how you attribute spend back to a specific request in your own logs. See Errors.

Credits and blocked runs

Platform-funded workspaces are checked for credit before any run that spends money starts — POST /api/scans, POST /api/bulk, POST /api/scans/{id}/expand, and campaign planning all pre-check. A workspace out of credit is stopped up front rather than part-way through a pipeline, so you never pay for a half-finished search. Contact enrichment is gated harder still: it runs only on completed searches, only on an explicit call, and only against an explicit target of email, phone, or both. It never happens automatically as part of a search.