---
title: "Build cross-chain mint transactions for a drop"
method: POST
path: "/api/v2/drops/{slug}/cross_chain_mint"
tags: ["Drops Endpoints"]
---

# Build cross-chain mint transactions for a drop

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

Returns an ordered list of transactions for minting a drop using a token on another chain. The payer signs each transaction in order, and the minter receives the NFT. After submission, pass receipt_request to POST /api/v2/transactions/receipt and poll until the status is terminal.

## Path parameters

- `slug` string, required

## Request body

- CrossChainDropMintRequest — Cross-chain mint request parameters
  - `payer` string, required — Wallet address that will sign and pay for the transactions
  - `minter` string, required — Wallet address that will receive the minted tokens
  - `quantity` integer, required — Number of tokens to mint
  - `payment` CrossChainPaymentToken, required — Payment token to use for a cross-chain transaction
    - `chain` string, required — Chain of the payment token (e.g. 'base', 'ethereum')
    - `token_address` string, required — Contract address of the payment token (use 0x0000000000000000000000000000000000000000 for native token)

## Response `200`

Ordered transactions required to complete the mint

## Other responses

- `400` — Invalid address, payment chain, payment token, quantity, or request body
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Drop or collection not found for the given slug
- `409` — Drop is not currently active for minting
- `422` — Minting precondition failed, including an ineligible wallet, exhausted supply, insufficient balance, or a payer that is not allowed for the active presale
- `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)