> ## Documentation Index > Fetch the complete documentation index at: https://developer.wallbit.io/docs/llms.txt > Use this file to discover all available pages before exploring further. # Get Exchange Rate > Returns the stored exchange rate for the given `source_currency` and `dest_currency` from the `exchange_rates` table. Requires the `read` permission on the API key. Both parameters must be valid currency codes in Wallbit. If both codes are identical, the response returns a rate of `1.0` with `updated_at` null (no database row required). If the pair does not exist in the table, the API responds with 404. ## OpenAPI ````yaml GET /api/public/v1/rates openapi: 3.0.3 info: title: Wallbit Public API description: >- Wallbit Public API allows developers to integrate Wallbit functionality into their applications. Access account balances, view transaction history, and execute trades programmatically using API Keys. version: 1.0.0 contact: name: Wallbit API Support email: dev@wallbit.io servers: - url: https://api.wallbit.io description: Production server - url: http://localhost description: Local development server security: - apiKey: [] tags: - name: Balance description: Endpoints to retrieve account balances - name: Transactions description: Endpoints to retrieve transaction history - name: Trades description: Endpoints to execute trading operations - name: Fees description: >- Endpoints to retrieve fee configuration for the authenticated user (e.g. stock trading fees by subscription tier) - name: Account Details description: Endpoints to obtain bank account details - name: Wallets description: Endpoints to obtain wallet addresses - name: Rates description: Endpoints to retrieve fiat exchange rates from Wallbit - name: Assets description: Endpoints to query information about assets (stocks) and categories - name: Operations description: Endpoints for deposit and withdrawal investment operations - name: Cards description: Endpoints to block and unblock cards - name: API Key description: Endpoints to revoke the API key used for authentication paths: /api/public/v1/rates: get: tags: - Rates summary: Get exchange rate for a currency pair description: >- Returns the stored exchange rate for the given `source_currency` and `dest_currency` from the `exchange_rates` table. Requires the `read` permission on the API key. Both parameters must be valid currency codes in Wallbit. If both codes are identical, the response returns a rate of `1.0` with `updated_at` null (no database row required). If the pair does not exist in the table, the API responds with 404. operationId: getPublicExchangeRate parameters: - name: source_currency in: query required: true description: Source currency code (must exist in Wallbit currencies) schema: type: string example: ARS - name: dest_currency in: query required: true description: Destination currency code (must exist in Wallbit currencies) schema: type: string example: USD responses: '200': description: Exchange rate found, or identity pair (rate 1.0) content: application/json: schema: type: object properties: data: $ref: '#/components/schemas/PublicExchangeRate' examples: from-table: summary: Rate from exchange_rates value: data: source_currency: ARS dest_currency: USD pair: ARSUSD rate: 1481.02 updated_at: '2026-02-25T01:50:04+00:00' identity: summary: Same source and destination value: data: source_currency: USD dest_currency: USD pair: USDUSD rate: 1 updated_at: null '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '404': description: No exchange rate row for this pair content: application/json: schema: $ref: '#/components/schemas/Error' example: message: Exchange rate not found for this currency pair. '422': $ref: '#/components/responses/ValidationError' '429': $ref: '#/components/responses/TooManyRequests' security: - apiKey: [] components: schemas: PublicExchangeRate: type: object description: Exchange rate row exposed by the public API properties: source_currency: type: string description: Source currency code example: ARS dest_currency: type: string description: Destination currency code example: USD pair: type: string description: Concatenated pair key (source + destination) example: ARSUSD rate: type: number format: float description: >- Conversion rate from source to destination. When both currencies are equal, always 1.0. example: 1481.02 updated_at: type: string format: date-time nullable: true description: >- Last update time of the rate in the database (ISO 8601). Null for identity pairs (no row). Error: type: object properties: message: type: string description: Error message error: type: string description: Error description ValidationError: type: object properties: message: type: string description: Error message errors: type: object description: Field-specific validation errors additionalProperties: type: array items: type: string responses: Unauthorized: description: Missing or invalid API Key content: application/json: schema: $ref: '#/components/schemas/Error' examples: missing: summary: Missing API Key value: message: API Key required. Please provide X-API-Key header. invalid: summary: Invalid API Key value: message: Invalid or expired API Key. Forbidden: description: Insufficient permissions content: application/json: schema: type: object properties: message: type: string your_permissions: type: array items: type: string example: message: 'Insufficient permissions. Required permission: read' your_permissions: - trade ValidationError: description: Validation failed content: application/json: schema: $ref: '#/components/schemas/ValidationError' example: message: The given data was invalid. errors: symbol: - The symbol field is required. TooManyRequests: description: Rate limit exceeded content: application/json: schema: type: object properties: message: type: string retry_after: type: integer description: Seconds until rate limit resets example: message: Too many requests. Please try again later. retry_after: 42 headers: X-RateLimit-Limit: description: Total requests allowed per minute schema: type: integer X-RateLimit-Remaining: description: Requests remaining in current window schema: type: integer X-RateLimit-Reset: description: Unix timestamp when rate limit resets schema: type: integer Retry-After: description: Seconds to wait before retry schema: type: integer securitySchemes: apiKey: type: apiKey name: X-API-Key in: header description: >- API Key authentication. Obtain your API key from the Wallbit dashboard under Settings → API Keys. ````