v9

latestOpenAPI 3.0.0raw.githubusercontent.com2026-06-2491679.8 KB

Orders & Positions

Fetch Balance

Check the USDC available for trading. Returns the wallet's balance inside the PMXT escrow on Polygon — not the wallet's on-chain USDC balance.

Top up by depositing at pmxt.dev/dashboard/wallet.

get/v0/user/{address}/balances

Path parameters

addressstring required

EVM wallet address (lowercase or checksum).

Response

Balance for the wallet.

currencystring required

Currency code. Always USDC -- the only collateral accepted by the hosted escrow.

amountnumber required

Spendable USDC dollars held inside the PMXT PreFundedEscrow on Polygon (NOT the venue-native CLOB-proxy balance). Backs trading on Polymarket, Opinion, and Limitless.

venue'polymarket' | 'opinion' | 'limitless' nullable

Set when the hosted backend returns a per-venue breakdown; null when balance is venue-agnostic.