Engilane · Vapi-first · Early access

Your AI receptionist can lose leads silently. CallProof catches it.

Agencies running phone agents need proof—not hope—that bookings succeed, claims stay within policy, and emergencies reach a human. CallProof ingests Vapi end-of-call reports and surfaces actionable failures before the client notices.

The problem

Production voice agents fail in predictable ways: calendar tools time out, agents invent offers not in the brief, and urgent callers never get transferred. Most agencies only discover this when the client complains—or churns.

The outcome

Every evaluated call lands in a severity queue—Critical, Review, or Passed—with reasons, transcript evidence, and estimated revenue at risk. Your team acknowledges, resolves, or deletes calls with a clear audit trail.

Sample failure report

What a critical call looks like

CriticalAcme Dental receptionist · 1m 38s

€500 estimated revenue at risk

Booking or transfer tool reported failure.
Missing required fields: callback_number.

"Let me check availability… [book_appointment failed: calendar API timeout]"

Deterministic checks plus structured AI evaluation—never a silent pass when the model fails.

Setup

Vapi-first in minutes

Create an agent in CallProof—receive a webhook URL and one-time bearer secret.
Point Vapi end-of-call-report events to that URL with Authorization: Bearer.
Configure your rubric: approved facts, required fields, booking tool names, escalation triggers.
Replay sample calls to validate the pipeline before going live.

Simple plans for agencies

Single agent

€49/mo

1 Vapi agent, full evaluation pipeline, email alerts.

Agency

€149/mo

Up to 10 agents, team access, weekly digest.

Preview pricing only until Gumroad product IDs and checkout URLs are configured in the worker. VAT may apply at checkout.

Trust & retention

Built for client data you are responsible for

Transcripts retained 30 days by default; purge cron clears expired content.
Derived evaluation results kept until you delete the call or workspace.
Per-call deletion and owner-only workspace wipe with explicit confirmation.
Tenant-scoped queries on every API route; webhook secrets stored hashed.
Email codes for auth—no passwords stored. Sign-in only sends mail when Brevo is configured.

Privacy · Retention ·Terms