openapi: 3.1.0 info: title: Crossmint Wallets Balances API description: 'Crossmint REST API for creating and managing server-side custodial and non-custodial smart wallets across EVM and Solana. Covers wallet creation, balances, transactions, transfers, signatures, delegated signers, and NFT enumeration. Endpoint inventory drawn from https://docs.crossmint.com. ' version: '2025-06-09' contact: name: Crossmint Developers url: https://docs.crossmint.com servers: - url: https://www.crossmint.com/api/2025-06-09 description: Production - url: https://staging.crossmint.com/api/2025-06-09 description: Staging security: - ApiKeyAuth: [] tags: - name: Balances paths: /wallets/{walletLocator}/balances: get: summary: Get wallet balance operationId: getWalletBalance tags: - Balances parameters: - in: path name: walletLocator required: true schema: type: string - in: query name: tokens schema: type: string - in: query name: chains schema: type: string responses: '200': description: Balances components: securitySchemes: ApiKeyAuth: type: apiKey in: header name: X-API-KEY