---
title: "Build transaction data for creating a SelfMint drop item"
method: POST
path: "/api/v2/drops/{slug}/items"
tags: ["Drops Endpoints"]
---

# Build transaction data for creating a SelfMint drop item

`POST /api/v2/drops/{slug}/items`

Returns ready-to-sign onchain transaction data for creating a SelfMint drop item. The caller is responsible for signing and broadcasting the transaction.

## Path parameters

- `slug` string, required

## Request body

- SaveSelfMintDropItemRequest — Request to create a SelfMint drop item
  - `media_token` string, required — Media token reference
  - `name` string, required — Item name
  - `supply` string, required — Item supply as a decimal string
  - `description` string — Item description
  - `external_url` string — External URL
  - `traits` SelfMintDropItemTraitRequest[] — Item traits
    - `trait_type` string, required — Trait type
    - `value` string, required — Trait value

## Response `200`

Ready-to-sign transaction data

## Other responses

- `400` — Bad Request
- `401` — Invalid or missing API key
- `403` — Forbidden
- `404` — Not Found
- `409` — Conflict
- `500` — Internal server error. Please open a support ticket so OpenSea can investigate.

---

[API](https://skmtc.net/opensea/apis/opensea-api.md) · [All operations](https://skmtc.net/opensea/apis/opensea-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/opensea/opensea-api/versions/acee8835f2ae/schema)