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IBaseSolanaBridge

Git Source

Minimal interface for Base's Solana Bridge contract on Base mainnet. References:

  • Base docs: https://docs.base.org/base-chain/quickstart/base-solana-bridge
  • Bridge address (Base mainnet): 0x3eff766C76a1be2Ce1aCF2B69c78bCae257D5188 Notes:
  • The bridge uses Solana pubkeys in the ABI; onchain this is encoded as bytes32.
  • Amounts for Base→Solana transfers are expressed in remote token units and fit in uint64.

Functions​

getPredictedTwinAddress​

Predict the deterministic Twin contract for a Solana sender pubkey.

ABI uses bytes32 for the Solana pubkey.

function getPredictedTwinAddress(bytes32 sender) external view returns (address);

bridgeToken​

Bridge a token to Solana, optionally with Solana instructions.

This method is payable (bridge fees may be required).

function bridgeToken(Transfer calldata transfer, Ix[] calldata ixs) external payable;

bridgeCall​

Bridge a pure Solana call (no token transfer).

This method is payable (bridge fees may be required).

function bridgeCall(Ix[] calldata ixs) external payable;

Structs​

Ix​

Solana instruction structure (serialized and relayed to Solana).

Field names align with Base docs / verified sources.

struct Ix {
    bytes32 programId;
    bytes[] serializedAccounts;
    bytes data;
}

Transfer​

Base↔Solana transfer descriptor.

struct Transfer {
    address localToken;
    bytes32 remoteToken;
    bytes32 to;
    uint64 remoteAmount;
}