Drops Endpoints

Build cross-chain mint transactions for a drop

Changed on Nov 3, 2026

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.

post/api/v2/drops/{slug}/cross_chain_mint

Request

Base URL
https://api.opensea.io
Auth
API key in header x-api-key
TypeScript
https://skmtc.dev/opensea/apis/opensea-api/docs/api/v2/drops/:slug/cross_chain_mint/post.ts
A function with typed inputs. Its response is checked against the schema.

Path parameters

slugstring required

The collection slug identifying the drop

Request body

minterstring required

Wallet address that will receive the minted tokens

payerstring required

Wallet address that will sign and pay for the transactions

quantityinteger required

Number of tokens to mint

Example request

{
  "minter": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
  "payer": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
  "payment": {
    "chain": "base",
    "token_address": "0x0000000000000000000000000000000000000000"
  },
  "quantity": 1
}

Response

Ordered transactions required to complete the mint

Example response

{
  "receipt_request": {
    "swap_quote": {
      "from_assets": [
        {
          "amount": "1000000000000000000",
          "chain": "ethereum",
          "contract": "0x0000000000000000000000000000000000000000",
          "token_id": "1234"
        }
      ],
      "to_assets": [
        {
          "amount": "1000000000000000000",
          "chain": "ethereum",
          "contract": "0x0000000000000000000000000000000000000000",
          "token_id": "1234"
        }
      ]
    },
    "transaction_identifiers": [
      {
        "chain": "ethereum",
        "swap_provider": "RELAY",
        "transaction_hash": "0xabc123..."
      }
    ]
  },
  "transactions": [
    {
      "chain": "ethereum",
      "svm": {
        "instructions": [
          {
            "accounts": [
              {
                "pubkey": "So11111111111111111111111111111111111111112"
              }
            ],
            "data": "01020304",
            "program_id": "JUP6LkbZbjS1jKKwapdHNy74zcZ3tLUZoi5QNyVTaV4"
          }
        ],
        "transaction_config": {
          "compute_unit_limit": 200000,
          "priority_fee_lamports": "5000"
        }
      }
    }
  ]
}

Changes

Nov 3, 20262c7935d84f90 Revision changes
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Operation history