> ## Documentation Index > Fetch the complete documentation index at: https://docs.zet.money/llms.txt > Use this file to discover all available pages before exploring further. # Get Off-Ramp Quote > Get a price quote for selling crypto for Nigerian Naira (NGN). The quote includes all fees broken down: - **Platform fee**: 20 NGN - **Processing fee**: 0.1% of fiat amount (capped at 200 NGN) - **Stamp duty**: 50 NGN for amounts ≥ 10,000 NGN - **Swap fee**: 20 NGN if source token is not CNGN (for the Token → CNGN conversion) Also verifies the bank account and returns the resolved account name. ## OpenAPI ````yaml POST /offramp/quote openapi: 3.1.0 info: title: Zet API description: > The Zet API enables businesses to integrate smart on/off ramp, token swap, and cross-chain transfer capabilities into their applications. Built on ERC-4337 smart accounts with gas-sponsored transactions, Zet handles the complexity of blockchain interactions so you can focus on your product. ## Base URL ``` https://api.zet.money/v1 ``` ## Authentication All requests must include your API key in the `x-api-key` header. Contact [zetdotmoney@gmail.com](mailto:zetdotmoney@gmail.com) to obtain your API keys. ## Rate Limits - **60 requests per minute** per API key (default) - Rate limit headers are included in every response - Contact us for higher limits version: 1.0.0 contact: name: Zet Support url: https://zet.money/support email: support@zet.money license: name: Proprietary servers: - url: https://api.zet.money/v1 description: Production - url: https://api-staging.zet.money/v1 description: Staging security: - apiKey: [] tags: - name: Wallets description: Create and manage smart wallets for your users - name: On-Ramp description: Buy crypto with Nigerian Naira (NGN) - name: Off-Ramp description: Sell crypto for Nigerian Naira (NGN) - name: Swap description: Swap tokens on the same chain or across chains - name: Cross-Chain Transfer description: Transfer tokens across different blockchains - name: Webhooks description: Register webhook URLs to receive async event notifications - name: Transactions description: Query transaction history and details paths: /offramp/quote: post: tags: - Off-Ramp summary: Get off-ramp quote description: > Get a price quote for selling crypto for Nigerian Naira (NGN). The quote includes all fees broken down: - **Platform fee**: 20 NGN - **Processing fee**: 0.1% of fiat amount (capped at 200 NGN) - **Stamp duty**: 50 NGN for amounts ≥ 10,000 NGN - **Swap fee**: 20 NGN if source token is not CNGN (for the Token → CNGN conversion) Also verifies the bank account and returns the resolved account name. operationId: getOfframpQuote requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/OfframpQuoteRequest' responses: '200': description: Quote generated with verified bank details. content: application/json: schema: type: object properties: success: type: boolean example: true data: $ref: '#/components/schemas/OfframpQuote' '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '429': $ref: '#/components/responses/RateLimited' components: schemas: OfframpQuoteRequest: type: object required: - amount - tokenSymbol - bankCode - accountNumber properties: amount: type: string description: Amount of crypto to sell. example: '100' tokenSymbol: type: string enum: - CNGN - USDC - ETH - cbBTC - BNB - USDT example: USDC chain: $ref: '#/components/schemas/PrimaryChain' default: base bankCode: type: string description: Nigerian bank code from `/onramp/banks`. example: '044' accountNumber: type: string description: 10-digit NUBAN account number. example: '0123456789' OfframpQuote: type: object properties: quoteId: type: string example: qt_01H8X4... cryptoAmount: type: string description: Amount of crypto to be sold. example: '100' tokenSymbol: type: string example: USDC chain: $ref: '#/components/schemas/PrimaryChain' fiatAmount: type: string description: Estimated NGN the user will receive in their bank account. example: '148500' fiatCurrency: type: string example: NGN rate: type: string description: Exchange rate (NGN per token). example: '1540.50' fees: type: object properties: platformFee: type: string description: Zet platform fee (always 50 NGN). example: '50' providerFee: type: string description: Provider fee (0.1% of fiat amount, capped at 200 NGN). example: '148.50' swapFee: type: string description: Swap fee if source is not CNGN (20 NGN). Zero if source is CNGN. example: '20' totalFee: type: string example: '218.50' bankAccount: type: object properties: bankName: type: string example: Access Bank bankCode: type: string example: '044' accountNumber: type: string example: '0123456789' accountName: type: string description: Resolved account name from bank verification. example: John Doe expiresAt: type: string format: date-time PrimaryChain: type: string enum: - base - bsc description: Primary chains where Zet-managed wallets operate Error: type: object required: - success - error properties: success: type: boolean example: false error: type: object required: - code - message properties: code: type: string example: INVALID_REQUEST message: type: string example: The 'amount' field is required. responses: BadRequest: description: Invalid request parameters. content: application/json: schema: $ref: '#/components/schemas/Error' example: success: false error: code: INVALID_REQUEST message: The 'amount' field must be a positive number. Unauthorized: description: Missing or invalid API key. content: application/json: schema: $ref: '#/components/schemas/Error' example: success: false error: code: UNAUTHORIZED message: Invalid API key. RateLimited: description: Rate limit exceeded. content: application/json: schema: $ref: '#/components/schemas/Error' example: success: false error: code: RATE_LIMITED message: Rate limit exceeded. Try again in 60 seconds. securitySchemes: apiKey: type: apiKey in: header name: x-api-key description: Your Zet API key. Contact zetdotmoney@gmail.com to obtain your keys. ````