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Bridge

Bridge API endpoints (bridge.polymarket.com) for cross-chain deposits, withdrawals, and asset bridging. No authentication required for read endpoints.

Endpoints

get_bridge_supported_assets() -> list[dict]

Get all supported assets and chains for bridging.

assets = client.get_bridge_supported_assets()
# Each item: {chainId, chainName, token: {name, symbol, address, decimals}, minCheckoutUsd}

get_bridge_quote(...) -> dict

Get a price estimate before bridging.

quote = client.get_bridge_quote(
    from_amount_base_unit="1000000",        # 1 USDC (6 decimals)
    from_chain_id="1",                      # Ethereum
    from_token_address="0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
    recipient_address="0xYourPolymarketWallet",
    to_chain_id="137",                      # Polygon
    to_token_address="0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174",
)
# quote keys: quoteId, estCheckoutTimeMs, estInputUsd, estOutputUsd,
#             estToTokenBaseUnit, estFeeBreakdown (appFeeUsd, gasUsd, ...)

create_deposit_address(address) -> BridgeAddress

Create multi-chain deposit addresses. Send funds to the returned address to have USDC.e credited to your Polymarket wallet.

result = client.create_deposit_address("0xYourPolymarketWallet")
# result: {"address": {"evm": "0x...", "svm": "...", "btc": "bc1q..."}, "note": "..."}

create_withdrawal_address(address, to_chain_id, to_token_address, recipient_addr) -> BridgeAddress

Bridge funds out of Polymarket to another chain.

result = client.create_withdrawal_address(
    address="0xYourPolymarketWallet",
    to_chain_id="1",                    # Ethereum mainnet
    to_token_address="0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
    recipient_addr="0xRecipientOnEthereum",
)

get_bridge_transaction_status(address) -> pd.DataFrame

Poll for transaction status using an address returned by deposit/withdraw.

status = client.get_bridge_transaction_status("0xDepositAddress...")
# columns: fromChainId, fromTokenAddress, fromAmountBaseUnit,
#          toChainId, toTokenAddress, status, txHash, createdTimeMs

Status values: DEPOSIT_DETECTED, PROCESSING, ORIGIN_TX_CONFIRMED, SUBMITTED, COMPLETED, FAILED.