> ## Documentation Index > Fetch the complete documentation index at: https://docs.blockradar.co/llms.txt > Use this file to discover all available pages before exploring further. # Get Child Address Quote ## OpenAPI ````yaml post /v1/wallets/{walletId}/addresses/{addressId}/deposit/fiat/quote openapi: 3.0.3 info: title: Blockradar Documentation description: >- The OpenAPI specification of the Blockradar API that enables fintechs and developers to seamlessly integrate stablecoin deposits and payments into their products. version: 1.0.0 contact: {} servers: - url: https://api.blockradar.co security: - apiKey: [] tags: - name: Rewards description: >- Non-custodial yield (Earn) on stablecoins via regulated (Fija) and DeFi (Aave) strategies. Deposit, withdraw, preview fees, and read positions and earnings at the business, wallet, and sub-address level. Amounts are returned net of the platform fee, which applies only to interest earned. - name: Wallet description: >- Wallet Management System Comprehensive wallet management API for multi-blockchain operations. This system handles wallet creation, configuration, balance monitoring, and integration with various blockchain networks. Core Functionality: - Multi-blockchain wallet creation and management - Balance monitoring and asset tracking - Auto-settlement rule configuration - Gateway wallet integration - Address generation and management - Transaction monitoring and processing - name: Addresses description: >- Address Management System Comprehensive blockchain address management API for operations. This system handles address creation, validation, monitoring, and management across multiple blockchain networks. Core Functionality: - Multi-blockchain address generation - Address validation and verification - Balance monitoring and tracking - Transaction history management - Address labeling and organization - Integration with wallet systems - Real-time address monitoring - name: Asset - name: Transactions - name: Withdraw description: >- The Withdraw feature allows you to programmatically withdraw stablecoins from your master wallet with ease - name: Withdraw Fiat - name: Signing description: >- Typed data signing service for secure transaction authorization. Supports all EIP-712 standards including EIP-3009 (TransferWithAuthorization) and EIP-2612 (Permit). - name: Swap description: >- The Swap feature enables users to exchange one stabelcoin asset for another across different blockchains. This feature provides a seamless way to convert between different stablecoins while maintaining security and compliance standards. - name: Liquidity Pool - name: Virtual Accounts description: >- Virtual Accounts API provides endpoints for managing virtual bank accounts linked to master wallets or child addresses. This API enables businesses to: - Create virtual accounts for customers to receive payments - Retrieve virtual account details - Activate/deactivate virtual accounts **Virtual Account Types:** Virtual accounts support different types with varying behaviors: 1. **AUTO_FUNDING** (Default): - Automatically mints stablecoin when fiat payments are received - Transfers the stablecoin to the linked wallet/address immediately - Best for real-time payment processing **How It Works - Auto-Funding Flow (AUTO_FUNDING type only):** When a customer sends fiat currency to a virtual account with type AUTO_FUNDING: 1. **Payment Receipt**: The payment is received in the virtual account 2. **Automatic Minting**: The system automatically mints the stablecoin equivalent 3. **Blockchain Transfer**: The minted stablecoin is transferred to the virtual account's linked wallet or address **Note**: The auto-funding flow only applies to virtual accounts with type `AUTO_FUNDING`. Other types have different processing behaviors. ## Prerequisites Before creating virtual accounts, ensure: - **Compliance requirements must be completed** (see [Compliance Requirements](http://localhost:3000/essentials/virtual-accounts#compliance-requirements) section below) - **Virtual accounts feature must be enabled** for your business (reach out to [support@blockradar.co](https://mailto:support@blockradar.co) or use live chat on the dashboard to enable the feature after compliance approval) - **Only available on MAINNET environment** (not available on testnet) - **Master Wallet must support stablecoin asset** - Your account plan must include stablecoin access (upgrade from Dashboard → Settings → Subscription if needed) **Supported Currency:** - Fiat: NGN (Nigerian Naira) - Stablecoin: cNGN - minted automatically on blockchain (for AUTO_FUNDING type) - name: Auto Settlements description: >- Creates a new auto settlement rule for a wallet. Auto settlement automatically transfers/swap assets based on configured rules when certain conditions are met. Rules can be configured for: - Source blockchain and assets - Destination blockchain and asset - Amount ranges (min/max) - Slippage tolerance - Gateway vs non-gateway wallets Gateway rules are required for testnet wallets and must have matching source/destination assets. - name: Smart Contract description: >- This API provides endpoints for interacting with smart contracts on the blockchain. It allows for reading contract data, executing contract functions, and estimating network fees. - name: Gateway description: >- The Gateway feature enables you to programmatically deposit USDC into a unified, chain-abstracted balance and instantly mint USDC on any supported blockchain, streamlining crosschain transfers and eliminating manual bridging steps and rebalancing complexities. - name: Payment Links description: >- The Payment Pages API provides a quick and secure way to collect payment for servcies. - name: Beneficiaries description: >- This API allows you to create beneficiaries with automatic settlements to your external wallets on a periodic basis. Example frequencies: INSTANT, DAILY, WEEKLY, MONTHLY, YEARLY - name: AML description: >- The AML (Anti Money Laundering) API provides a quick way for you to check if an address is blacklisted or sanctioned - name: Asset Recovery description: >- Enables the recovery (salvage) of both native blockchain assets and tokens from a specified sender address to a recipient address. This feature supports emergency fund recovery and asset consolidation operations. - name: Miscellaneous description: >- The Miscellaneous API are supporting APIs that can be used to provide more details to other APIs. - name: Asset1 - name: Blockchain - name: Webhooks description: >- Webhooks allow you to set up a notification system that can be used to receive updates on certain requests made to the Blockradar API. To see full list and instructions [https://docs.blockradar.co/essentials/webhooks](https://docs.blockradar.co/essentials/webhooks) ## - name: Deposit - name: Withdraw1 - name: Swap1 - name: Gateway1 paths: /v1/wallets/{walletId}/addresses/{addressId}/deposit/fiat/quote: post: tags: - Deposit Fiat summary: Child Address Get Quote operationId: AddressController_getDepositFiatQuote parameters: - name: walletId required: true in: path schema: type: string format: uuid description: Wallet identifier. example: 4465468a-3c36-4536-918a-91d689e18a74 - name: addressId required: true in: path schema: type: string format: uuid description: Child address identifier. example: a2746f77-56b1-4b34-b0f3-53ad99bf53e2 requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/GetDepositFiatQuoteDto' responses: '200': description: Successful response. content: application/json: schema: $ref: '#/components/schemas/DepositFiatQuoteResponse' example: statusCode: 200 message: Fiat deposit quote retrieved data: amount: '100.00' amountFiat: '155000.00' feeFiat: '1500.00' amountFiatPayable: '156500.00' rate: '1550.00' unlocked: true additionalDataRequirements: schema: $schema: http://json-schema.org/draft-07/schema# type: object title: Bank account details properties: institutionIdentifier: type: string title: Institution accountIdentifier: type: string title: Account identifier accountName: type: string title: Account name readOnly: true x-field-kind: resolved x-resolution: method: POST url: >- /v1/wallets/4465468a-3c36-4536-918a-91d689e18a74/deposit/fiat/payment-order-requirements/resolve body: provider: example-provider assetId: ae455f23-3824-4125-baab-d158315cbcbd currency: NGN amount: '100.00' rail: one_time_virtual_account inputPath: additionalData dependsOn: - institutionIdentifier - accountIdentifier responsePath: data.accountName required: - institutionIdentifier - accountIdentifier additionalProperties: false components: schemas: GetDepositFiatQuoteDto: type: object properties: assetId: type: string format: uuid description: >- Stablecoin asset identifier returned by the supported-assets endpoint. example: ae455f23-3824-4125-baab-d158315cbcbd currency: type: string minLength: 3 maxLength: 3 description: ISO 4217 fiat currency code. example: NGN amount: type: string pattern: ^\d+(\.\d+)?$ description: Decimal amount encoded as a string to preserve precision. example: '100.00' rail: $ref: '#/components/schemas/CurrencyConversionRouteRailEnum' description: Payment collection rail. example: one_time_virtual_account provider: type: string description: >- Optional provider slug. Omit it to let Blockradar select an eligible provider. example: example-provider required: - assetId - currency - amount - rail DepositFiatQuoteResponse: type: object properties: statusCode: type: integer example: 200 message: type: string description: Human-readable result. example: Deposit quote fetched successfully data: $ref: '#/components/schemas/DepositFiatQuote' required: - statusCode - message - data CurrencyConversionRouteRailEnum: type: string enum: - one_time_virtual_account - payment_link - qr_code description: Supported fiat collection rail. DepositFiatQuote: type: object properties: amount: type: string description: Stablecoin amount to settle. example: '100.00' amountFiat: type: string description: Fiat equivalent before fees. example: '155000.00' feeFiat: type: string description: Fee charged in fiat. example: '1500.00' amountFiatPayable: type: string description: Total fiat amount the customer must pay. example: '156500.00' rate: type: string description: Fiat per unit of the target asset. example: '1550.00' unlocked: type: boolean description: >- Whether the resolved provider is already enabled and configured for this business. example: true additionalDataRequirements: type: object properties: schema: $ref: '#/components/schemas/Draft07Schema' nullable: true required: - schema required: - amount - amountFiat - feeFiat - amountFiatPayable - rate - unlocked - additionalDataRequirements Draft07Schema: type: object description: >- A JSON Schema Draft 07 document. Render and validate this schema before submitting additionalData or paymentMethodData. additionalProperties: true properties: $schema: type: string description: JSON Schema dialect URI. example: http://json-schema.org/draft-07/schema# type: type: string description: Root JSON type. example: object properties: type: object additionalProperties: true required: type: array items: type: string required: - $schema securitySchemes: apiKey: type: apiKey name: x-api-key in: header ````