> ## Documentation Index > Fetch the complete documentation index at: https://docs.arrays.org/llms.txt > Use this file to discover all available pages before exploring further. # Get Treasury Rates > [OpenAPI JSON Spec](/docs/output/v1_macro_treasury-rates_get.json) Retrieve US Treasury rates data for different maturities over time **Feature Overview** Get historical treasury rates including 1M, 2M, 3M, 6M, 1Y, 2Y, 3Y, 5Y, 7Y, 10Y, 20Y, and 30Y rates. **Main Use Cases** - **Interest Rate Analysis**: Track treasury rate changes over time - **Investment Research**: Analyze yield curve movements and trends - **Economic Analysis**: Monitor economic indicators through treasury rates - **Portfolio Management**: Use rates for bond portfolio strategy - **Risk Assessment**: Evaluate interest rate risk across different maturities **Response Data Structure** Each rate record includes: - **date**: Rate date (YYYY-MM-DD format) - **month1**: 1 Month treasury rate - **month2**: 2 Month treasury rate - **month3**: 3 Month treasury rate - **month6**: 6 Month treasury rate - **year1**: 1 Year treasury rate - **year2**: 2 Year treasury rate - **year3**: 3 Year treasury rate - **year5**: 5 Year treasury rate - **year7**: 7 Year treasury rate - **year10**: 10 Year treasury rate - **year20**: 20 Year treasury rate - **year30**: 30 Year treasury rate **Usage Examples** 1. **Get latest treasury rates**: No parameters needed 2. **Get rates from specific date**: `?start_time=1745971200` 3. **Get rates for date range**: `?start_time=1745971200&end_time=1748563200` ## OpenAPI ````yaml /api-reference/openapi.json get /v1/macro/treasury-rates openapi: 3.0.0 info: contact: {} description: >- Welcome to Arrays! Arrays is a unified financial data layer for both financial institutions and retail users, delivering comprehensive market data across crypto and equity markets. Our datasets cover fundamentals, ETFs, options, crypto, and more. Visit [arrays.org](https://arrays.org) to request an API key and start your free trial. You can explore our full API offerings in the documentation below. For any questions regarding APIs or pricing, please contact support@arrays.org. title: Arrays API version: '1.0' servers: - url: https://data-tools.prd.arrays.org/api security: [] paths: /v1/macro/treasury-rates: get: tags: - Macro summary: Get Treasury Rates description: >- [OpenAPI JSON Spec](/docs/output/v1_macro_treasury-rates_get.json) Retrieve US Treasury rates data for different maturities over time **Feature Overview** Get historical treasury rates including 1M, 2M, 3M, 6M, 1Y, 2Y, 3Y, 5Y, 7Y, 10Y, 20Y, and 30Y rates. **Main Use Cases** - **Interest Rate Analysis**: Track treasury rate changes over time - **Investment Research**: Analyze yield curve movements and trends - **Economic Analysis**: Monitor economic indicators through treasury rates - **Portfolio Management**: Use rates for bond portfolio strategy - **Risk Assessment**: Evaluate interest rate risk across different maturities **Response Data Structure** Each rate record includes: - **date**: Rate date (YYYY-MM-DD format) - **month1**: 1 Month treasury rate - **month2**: 2 Month treasury rate - **month3**: 3 Month treasury rate - **month6**: 6 Month treasury rate - **year1**: 1 Year treasury rate - **year2**: 2 Year treasury rate - **year3**: 3 Year treasury rate - **year5**: 5 Year treasury rate - **year7**: 7 Year treasury rate - **year10**: 10 Year treasury rate - **year20**: 20 Year treasury rate - **year30**: 30 Year treasury rate **Usage Examples** 1. **Get latest treasury rates**: No parameters needed 2. **Get rates from specific date**: `?start_time=1745971200` 3. **Get rates for date range**: `?start_time=1745971200&end_time=1748563200` parameters: - description: Start time (Unix timestamp in seconds) example: 1745971200 in: query name: start_time schema: type: integer format: int64 - description: End time (Unix timestamp in seconds) example: 1748563200 in: query name: end_time schema: type: integer format: int64 responses: '200': description: Success content: application/json: schema: allOf: - $ref: '#/components/schemas/model.APIResponse' - properties: data: items: $ref: '#/components/schemas/model.TreasuryRate' type: array type: object '400': description: Bad Request content: application/json: schema: $ref: '#/components/schemas/model.APIResponse' '500': description: Internal Server Error content: application/json: schema: $ref: '#/components/schemas/model.APIResponse' security: - ApiKeyAuth: [] components: schemas: model.APIResponse: properties: data: {} error: $ref: '#/components/schemas/model.APIError' metadata: {} pagination: {} request_id: type: string success: type: boolean type: object model.TreasuryRate: properties: date: description: Date in YYYY-MM-DD format type: string month1: description: 1 Month rate type: number month2: description: 2 Month rate type: number month3: description: 3 Month rate type: number month6: description: 6 Month rate type: number year1: description: 1 Year rate type: number year10: description: 10 Year rate type: number year2: description: 2 Year rate type: number year20: description: 20 Year rate type: number year3: description: 3 Year rate type: number year30: description: 30 Year rate type: number year5: description: 5 Year rate type: number year7: description: 7 Year rate type: number type: object model.APIError: properties: code: example: RESOURCE_NOT_FOUND type: string details: items: $ref: '#/components/schemas/model.APIErrorDetail' type: array docs_url: type: string examples: items: type: string type: array hint: type: string message: example: The requested resource was not found. type: string suggestions: items: type: string type: array type: object model.APIErrorDetail: properties: field: type: string got: type: string reason: type: string type: object securitySchemes: ApiKeyAuth: description: 'API Key authentication. Example: "your-api-key-here"' in: header name: X-API-Key type: apiKey ````