---
title: "POST /v1/external/campaigns/{agent_id}/{campaign_id}/scheduled-calls"
method: POST
path: "/v1/external/campaigns/{agent_id}/{campaign_id}/scheduled-calls"
---

# POST /v1/external/campaigns/{agent_id}/{campaign_id}/scheduled-calls

`POST /v1/external/campaigns/{agent_id}/{campaign_id}/scheduled-calls`

## Request

- Base URL: `https://api.samora.ai`
- URL: `https://api.samora.ai/v1/external/campaigns/{agent_id}/{campaign_id}/scheduled-calls`
- Auth: API key in header `X-API-Key`
- TypeScript: <https://skmtc.dev/i-stem/apis/samora-ai-api/docs/v1/external/campaigns/:agent_id/:campaign_id/scheduled-calls/post.ts> (a function with typed inputs; its response is checked against the schema)

Adds recipients to a campaign by creating scheduled outbound call records. Recipients can be added only when campaign status is DRAFT or PAUSED.

## Path parameters

- `agent_id` string, uuid, required
- `campaign_id` string, uuid, required

## Request body

- AddCampaignRecipientsRequest
  - `phone_numbers` CampaignRecipient[], required
    - `to_number` string, required: Destination phone number in E.164 format.
    - `call_variables` object: Variables passed to the agent for this recipient. Maximum serialized size is 4 KiB.

## Response `201`

Campaign calls scheduled successfully

- AddCampaignRecipientsResponse
  - `message` string, required
  - `data` object, required
    - `scheduled_call_ids` string[], required

## Other responses

- `400`: Bad request
- `404`: Resource not found or does not belong to your organization
- `500`: Internal server error

## Changes

- **2026-06-02** `888e48b1600e`: 1 breaking, 1 warning, 1 info
  - removed the required property `scheduled_call_ids` from the response with the `201` status
  - removed the request property `phone_numbers/items/metadata`
  - added the required property `data` to the response with the `201` status
- **2026-06-02** `c05ce18c8419`: 1 info
  - endpoint added
- **2026-02-03** `919eb7a392aa`: 1 breaking
  - api path removed without deprecation

[Operation history](https://skmtc.dev/i-stem/apis/samora-ai-api/changes/v1/external/campaigns/:agent_id/:campaign_id/scheduled-calls/post.md)

---

[API](https://skmtc.dev/i-stem/apis/samora-ai-api.md) - [All operations](https://skmtc.dev/i-stem/apis/samora-ai-api/llms.txt) - [OpenAPI document](https://skmtc.dev/i-stem/apis/samora-ai-api/revisions/cb390cb388d1?raw)