openapi: 3.0.3 info: title: Lithic 3DS Balance API description: The Lithic API is a card issuing and issuer-processor platform for issuing virtual and physical cards, authorizing and clearing transactions, moving money across ledgered financial accounts, and managing the full card lifecycle - KYC/KYB account holder onboarding, authorization rules and real-time Auth Stream Access (ASA) decisioning, disputes, tokenization into digital wallets, 3DS authentication, ACH payments, book transfers, external payments, settlement reporting, and fraud/transaction monitoring. This document curates the real, published Lithic OpenAPI 3.1 definitions (https://github.com/lithic-com/lithic-openapi) into the endpoint surface referenced by this apis.yml, expressed as OpenAPI 3.0.3 with lightweight response schemas. Requests are authenticated with an API key sent as the raw value of the Authorization header (not a Bearer token). version: 1.0.0 contact: name: Lithic url: https://www.lithic.com license: name: Apache 2.0 url: https://www.apache.org/licenses/LICENSE-2.0.txt servers: - url: https://api.lithic.com description: Production - url: https://sandbox.lithic.com description: Sandbox (mirrors production functionality) security: - ApiKeyAuth: [] tags: - name: Balance description: Available and pending balances for financial accounts. paths: /v1/balances: get: operationId: getBalances tags: - Balance summary: List balances description: Get the balances for a program, business, or a given end-user account responses: '200': description: Successful response. content: application/json: schema: $ref: '#/components/schemas/Balance' '401': $ref: '#/components/responses/Unauthorized' '422': $ref: '#/components/responses/ValidationError' /v1/financial_accounts/{financial_account_token}/balances: get: operationId: getBalance tags: - Balance summary: Get balances description: Get the balances for a given financial account. responses: '200': description: Successful response. content: application/json: schema: $ref: '#/components/schemas/Balance' '401': $ref: '#/components/responses/Unauthorized' '422': $ref: '#/components/responses/ValidationError' components: responses: ValidationError: description: The request failed validation. Unauthorized: description: Missing or invalid API key. schemas: Balance: type: object description: Available and pending balances for financial accounts. properties: token: type: string format: uuid description: Globally unique identifier for the object. created: type: string format: date-time additionalProperties: true securitySchemes: ApiKeyAuth: type: apiKey in: header name: Authorization description: Raw API secret key value (not prefixed with "Bearer").