---
title: "Create Activity"
method: POST
path: "/aurd-tracking/{claim_id}/projects/{project_id}/activities"
tags: ["au-rd-tracking"]
---

# Create Activity

`POST /aurd-tracking/{claim_id}/projects/{project_id}/activities`

## Request

- Base URL: `https://api.claimkit.co` (the document declares no server; this is the origin it was published from)
- URL: `https://api.claimkit.co/aurd-tracking/{claim_id}/projects/{project_id}/activities`
- Auth: none declared

Create a new activity.

Legacy claims insert into ``aurd_activities``. Activity-map claims
(``request.source`` / ``discovery_methodology``) insert into
``activity_map_activities`` via ``app.activity_map.edits.create`` — the
insert is audited with an Edit row and a finalized human-edit version.

## Path parameters

- `claim_id` integer, required
- `project_id` integer, required

## Request body

- CreateActivityRequest
  - `name` string, required
  - `description` string, nullable
  - `activity_type` 'core' | 'supporting', required
  - `source` 'legacy' | 'activity-map', nullable

## Response `201`

Successful Response

- ActivityResponse
  - `id` integer, required
  - `name` string, required
  - `description` string, nullable, required
  - `activity_type` string, required
  - `status` string, required
  - `ai_reasoning` string, nullable
  - `work_item_count` integer
  - `total_hours` number
  - `total_expenditure_cost` number, nullable
  - `sort_order` integer
  - `created_at` string, required
  - `employee_summaries` ActivityEmployeeSummary[]
    - `employee_identity_id` integer, nullable, required
    - `work_item_count` integer, required
    - `total_hours` number, required
    - `total_expenditure_cost` number, nullable

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/claimkit/apis/claimkit-api.md) - [All operations](https://skmtc.dev/claimkit/apis/claimkit-api/llms.txt) - [OpenAPI document](https://skmtc.dev/claimkit/apis/claimkit-api/revisions/94dc85ba5326?raw)