API and integrations

Bring checks into your workflow.

Import selected contacts or submit jobs from your own server. Your workspace credit rules still apply.

Connected ways to work

Choose a worksheet or paste a publicly readable sheet link. Public-link imports are read-only.

Choose a CRM contact list, keeping contact identity attached to results.

Choose an audience while preserving subscription and consent state.

Install a site-scoped verification widget with configured outcome rules.

Submit single or bulk jobs with scoped keys and spending caps.

Receive signed completion events and handle duplicate deliveries safely.

Test keys accept reserved example addresses without provider calls or credit use. Keep live keys on your server.

POST /api/v1/jobs
Authorization: Bearer fv_test_…
Idempotency-Key: your-stable-request-id

Use the same idempotency key for a retry of the same request. Verify signed webhook events and deduplicate their event IDs.