---
title: "Create"
method: POST
path: "/api/v1/index/contributions"
tags: ["index-contributions"]
---

# Create

`POST /api/v1/index/contributions`

## Request

- Base URL: `https://api.usesynth.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.usesynth.ai/api/v1/index/contributions`
- Auth: none declared. Required headers: `Idempotency-Key`

## Headers

- `Idempotency-Key` string, required

## Request body

- CreateContributionSpec: Creation accepts no client-selected identity, origin, or visibility.

## Response `200`

Successful Response

- PackagesContributionsUploadContributionDraft
  - `reference` ContributionReference, required
    - `contribution_id` string, required
    - `revision_id` string, required
  - `collection_id` string, uuid, required
  - `status` 'draft'
  - `visibility` 'private'
  - `artifact_revision` 1
  - `manifest_schema_version` 'synth.contribution.v1'

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/usesynth/apis/synth-api.md) - [All operations](https://skmtc.dev/usesynth/apis/synth-api/llms.txt) - [OpenAPI document](https://skmtc.dev/usesynth/apis/synth-api/revisions/4d199548e98a?raw)