The caller has already hung up
There is no user left in the session to retry a failed CRM save or correct a malformed field.
AI voice agent CRM handoff
Make the CRM handoff as reliable as the AI voice conversation.
Protect qualified lead delivery after Vapi, Retell AI, or another voice agent finishes a call and the caller is no longer present.
A successful automation run is not proof of delivery.
Voice agents can extract a qualified lead and finish the call successfully while the final webhook still fails. The business needs a deterministic handoff that normalizes model output, handles duplicate callbacks, retries temporary failures, and proves the CRM accepted the result.
Vapi, Retell AI, or voice agent → LeadProof → CRM, scheduler, or sales queueCallbacks may repeat
Provider retries and post-call workflow replays must not create duplicate contacts or appointments.
Conversation success is not delivery success
A completed call and a confident model response do not prove that the sales system stored the lead.
Implementation
Put LeadProof in the delivery path.
Keep the tools that create and process the lead. Standardize only the fragile handoff between them.
Open sandbox instructions →- Trigger LeadProof from the final structured-data or post-call webhook.
- Use the provider call ID or conversation ID as the Idempotency-Key.
- Send only the contact and routing fields required by the destination.
- Attach the LeadProof receipt ID to the call summary or internal event log.
POST
https://leadproof.jessesay.chatgpt.site/api/v1/leadsAuthorization: Bearer lp_live_your_key
Idempotency-Key: stable-source-lead-id
Content-Type: application/json
{
"destination": "https://your-crm.example/webhook",
"name": "Alex Morgan",
"email": "alex@example.com",
"source": "vapi and retell ai"
}Questions
What teams ask before adding LeadProof.
Does LeadProof listen to the call audio?
No. LeadProof protects the structured lead handoff after the voice platform has extracted the required fields.
Can it handle repeated post-call webhooks?
Yes. A stable call or conversation ID lets LeadProof recognize retries of the same source event.
Can an AI agent evaluate the setup first?
Yes. The LeadProof audit is available through REST, OpenAPI, MCP, and the A2A agent interface.
See the gaps in your real workflow.
Get an explainable risk score, prioritized fixes, and the right LeadProof plan.