Transaction API

The Transaction API prepares Solana transactions for Swig wallet creation, transfers, swaps, and recovery. It does not replace required client authority signatures; responses include signature requests when the client must sign.

Auth

Use an API key:

Authorization: Bearer sk_your_api_key

Common request fields

Field	Type	Description
`network`	enum	`NETWORK_DEVNET` or `NETWORK_MAINNET`
`feePayer`	string	Fee payer public key used in the prepared Solana transaction
`swigAddress`	string	Swig config address for existing-wallet operations
`requesterAuthority`	object	Wallet authority requesting the operation

Prepared transaction response

Most endpoints return a prepared transaction or a response containing prepared transactions.

Field	Type	Description
`transaction`	base64 string	Serialized unsigned or partially signed Solana transaction
`transactionEncoding`	enum	Currently `TRANSACTION_ENCODING_BASE64`
`wallet`	object	`swigConfigAddress` and `walletAddress` when known
`expiresAt`	timestamp	Expiration for the prepared transaction
`recentBlockhash`	string	Recent blockhash used in the transaction
`kind`	enum	Prepared transaction category
`signatureRequests`	array	Client authority signatures required before submission

Prepare a batch

POST /transaction/prepare/batch batches one or more supported operations for an existing Swig.

{
  "network": "NETWORK_DEVNET",
  "feePayer": "FeePayerPublicKey",
  "swigAddress": "SwigConfigAddress",
  "requesterAuthority": {
    "ed25519": { "publicKey": "RequesterPublicKey" }
  },
  "operations": [
    {
      "transferSol": {
        "destination": "DestinationPublicKey",
        "lamports": "1000000"
      }
    }
  ]
}

Prepare custom instructions

POST /transaction/prepare/custom builds one prepared Swig transaction from the Solana instructions supplied by the application.

{
  "network": "NETWORK_DEVNET",
  "feePayer": "FeePayerPublicKey",
  "swigAddress": "SwigConfigAddress",
  "requesterAuthority": {
    "ed25519": { "publicKey": "RequesterPublicKey" }
  },
  "instructions": [
    {
      "programId": "ProgramPublicKey",
      "accounts": [
        {
          "pubkey": "WritableAccountPublicKey",
          "isWritable": true
        }
      ],
      "data": "Base64EncodedInstructionData"
    }
  ],
  "addressLookupTableAccounts": ["LookupTablePublicKey"]
}

The response is prepared only. The application still supplies any requested client authority signature and chooses direct or sponsored submission.

Create a wallet

POST /transaction/wallet/create

{
  "network": "NETWORK_DEVNET",
  "feePayer": "FeePayerPublicKey",
  "policyId": "policy_123",
  "initialUser": {
    "ed25519": { "publicKey": "InitialUserPublicKey" }
  }
}

If policyId is omitted, initialUser is required and the API creates a no-recovery wallet policy for the caller’s organization.

Transfer SOL

POST /transaction/transfer/sol

{
  "network": "NETWORK_DEVNET",
  "feePayer": "FeePayerPublicKey",
  "swigAddress": "SwigConfigAddress",
  "requesterAuthority": {
    "ed25519": { "publicKey": "RequesterPublicKey" }
  },
  "destination": "DestinationPublicKey",
  "lamports": "1000000"
}

Transfer SPL token

POST /transaction/transfer/spl-token

{
  "network": "NETWORK_DEVNET",
  "feePayer": "FeePayerPublicKey",
  "swigAddress": "SwigConfigAddress",
  "requesterAuthority": {
    "ed25519": { "publicKey": "RequesterPublicKey" }
  },
  "mint": "MintAddress",
  "destinationOwner": "DestinationOwnerPublicKey",
  "amount": "1000000"
}

Jupiter swap

POST /transaction/swap/jupiter

{
  "network": "NETWORK_DEVNET",
  "feePayer": "FeePayerPublicKey",
  "swigAddress": "SwigConfigAddress",
  "requesterAuthority": {
    "ed25519": { "publicKey": "RequesterPublicKey" }
  },
  "inputMint": "InputMintAddress",
  "outputMint": "OutputMintAddress",
  "amount": "1000000",
  "slippageBps": 50,
  "mode": "ExactIn"
}

Recovery

Recovery endpoints prepare transactions for the guardian flow.

Endpoint	Required purpose fields
`/transaction/wallet/recovery-authority/add`	`swigAddress`, `requesterAuthority`
`/transaction/recovery/configure`	`swigAddress`, `guardianPubkey`, `delaySeconds`, optional `targetRoleId`
`/transaction/recovery/start`	`swigAddress`, `guardianPubkey` or `guardianSwigAddress`, `newAuthority`, `newAuthorityKind`
`/transaction/recovery/cancel`	`swigAddress`, `requesterAuthority`
`/transaction/recovery/execute`	`swigAddress`, `newAuthority`, `newAuthorityKind`

Start Here

Runtime APIs

Transaction API

Auth

Common request fields

Prepared transaction response

Prepare a batch

Prepare custom instructions

Create a wallet

Transfer SOL

Transfer SPL token

Jupiter swap

Recovery

​Auth

​Common request fields

​Prepared transaction response

​Prepare a batch

​Prepare custom instructions

​Create a wallet

​Transfer SOL

​Transfer SPL token

​Jupiter swap

​Recovery

Auth

Common request fields

Prepared transaction response

Prepare a batch

Prepare custom instructions

Create a wallet

Transfer SOL

Transfer SPL token

Jupiter swap

Recovery