---
title: "Trigger Vapi Latency Backfill"
method: POST
path: "/developer/vapi-latency/backfill"
tags: ["Developer", "Developer - Vapi Latency"]
---

# Trigger Vapi Latency Backfill

`POST /developer/vapi-latency/backfill`

Enqueue the Vapi latency backfill orchestrator.

## Request body

- VapiLatencyBackfillRequest — Request to enqueue the Vapi latency backfill.
  - `limit` integer, nullable — Max number of calls to enqueue (newest first); None = all
  - `only_missing` boolean — Only enqueue Vapi calls that don't yet have a stored latency row

## Response `202`

Successful Response

- VapiLatencyBackfillResponse — Response from enqueuing the Vapi latency backfill.
  - `message` string, required — Status message
  - `task_id` string, required — Celery task ID for the orchestrator

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/openintake/apis/fastapi.md) · [All operations](https://skmtc.dev/openintake/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/openintake/fastapi/revisions/4a81645b59f6/schema)