Bridge Asset Operations Documentation

Supported Cross-Chain Assets

• BTC
• I•NEED•TEST•RUNES

Actions with Bitcoin Blockchain

useBitcoinBlockchainActions

1. createSendBtc

• amount: Amount to send
• feeRate: Fee rate for bridge transaction
• recipientAddress: Address of the recipient
• destinationChain: Target chain
• doSignAndBroadcastPsbt: Function to sign and broadcast the generated PSBT. Returns txId.
• doSignMessage: Function to sign the bridge message (specific step for the Bitcoin chain).

2. createSendRune

• rune: Rune to send
• ...

Actions with Stacks Blockchain

useStxBlockchainActions

• whitelistedRunes: List of supported runes

• unlockBtc

  • publicKey: Public key of the signer
  • amount: Amount to transfer
  • recipientAddress: Address of the recipient
  • targetChain: Target chain
  • stacksNetwork: "testnet" | "mainnet"
  • doSignAndBroadcast: Function to sign and broadcast the generated StacksTransaction. Returns txId.

• unlockRunes

  • ...
  • rune: Rune to send
  • ...

Supported EVM Chains

• Sepolia (SEP)
• Merlin (MERL)

EVM Contracts

• Contracts for Sepolia and Merlin

Actions with EVM Blockchain

useEvmBlockchainActions

• Approval contract will be called if permission is not granted

1. createBridgeOutBTC

• amount: Amount to send
• recipientAddress: Destination address
• sourceChain: SEP or MERL
• targetChain: Destination chain
• serviceValue: Service value

2. createSendRune

• rune: Rune to send
• ...

pontisAxiosInstance - axios instance to interact with