Once an app is connected, it is also possible to sign multiple transactions at once. Unlike SignAndSendTransaction, Phantom will not submit these transactions to the network. Applications can submit signed transactions using web3.js's sendRawTransaction.

Base URL

Query String Parameters

  • dapp_encryption_public_key (required): The original encryption public key used from the app side for an existing Connect session.

  • nonce (required): A nonce used for encrypting the request, encoded in base58.

  • redirect_link (required): The URI where Phantom should redirect the user upon completion. Please review Specifying Redirects for more details. URL-encoded.

  • payload (required): An encrypted JSON string with the following fields:

      "transactions": [
        "...", // serialized transaction, bs58-encoded
        "...", // serialized transaction, bs58-encoded
      "session": "...", // token received from connect-method
    • transactions (required): An array of transactions that Phantom will sign, serialized and encoded in base58.

    • session (required): The session token received from the Connect method. Please see Handling Sessions for more details.



  • nonce: A nonce used for encrypting the response, encoded in base58.

  • data: An encrypted JSON string. Refer to Encryption to learn how apps can decrypt data using a shared secret. Encrypted bytes are encoded in base58.

    // content of decrypted `data`-parameter
        transactions: [
            "...", // signed serialized transaction, bs58-encoded
            "...", // signed serialized transaction, bs58-encoded
    • transactions: An array of signed, serialized transactions that are base58 encoded. Phantom will not submit these transactions. Applications can submit these transactions themselves via web3.js's sendRawTransaction.


An errorCode and errorMessage as query parameters. Please refer to Errors for a full list of possible error codes.

  "errorCode": "...",
  "errorMessage": "..."


Please refer to the signAllTransactions method implemented in our React Native demo application.

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