---
title: "Start use-case calls"
method: POST
path: "/api/v1/public/usecases/{use_case_id}/calls"
tags: ["public"]
---

# Start use-case calls

`POST /api/v1/public/usecases/{use_case_id}/calls`

## Request

- Base URL: `https://api.outcallerai.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.outcallerai.com/api/v1/public/usecases/{use_case_id}/calls`
- Auth: none declared. Required headers: `Idempotency-Key`

Start calls for 1 to 100 explicitly selected leads in a single-agent use case.

## Path parameters

- `use_case_id` string, required

## Headers

- `Idempotency-Key` string, required

## Request body

- UseCaseCallsRequest
  - `leadIds` string[], required

## Response `200`

Successful Response

- BatchCallResult
  - `useCaseId` string, required
  - `useCaseName` string, required
  - `requested` integer, required
  - `initiated` integer, required
  - `failed` integer, required
  - `results` object[], required
  - `appUrl` string, required

## Other responses

- `422`: Validation Error

## Changes

- **2026-08-21** `2a1adc380310`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/outcallerai/apis/outcallerai-api/changes/api/v1/public/usecases/:use_case_id/calls/post.md)

---

[API](https://skmtc.dev/outcallerai/apis/outcallerai-api.md) - [All operations](https://skmtc.dev/outcallerai/apis/outcallerai-api/llms.txt) - [OpenAPI document](https://skmtc.dev/outcallerai/apis/outcallerai-api/revisions/40736cf433b4?raw)