> ## Documentation Index > Fetch the complete documentation index at: https://kamino.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Get charts for a reserve > Get the current raw borrow rate curve and historical base supply and borrow APYs for a reserve. ## OpenAPI ````yaml /kamino-api.json get /reserves/{reservePubkey}/charts openapi: 3.1.0 info: version: 1.0.0 title: Kamino Public API description: > The Kamino API provides a comprehensive way to interact with Kamino without reading directly from the blockchain. The API also provides the ability to fetch data that might not be available from just reading the chain. The API is rate-limited for unauthenticated users. If you feel you need to make more requests or run into rate-limit issues, please reach out. servers: - url: https://api.kamino.finance security: [] paths: /reserves/{reservePubkey}/charts: get: tags: - Kamino Lend Reserves summary: Get charts for a reserve description: >- Get the current raw borrow rate curve and historical base supply and borrow APYs for a reserve. parameters: - schema: allOf: - $ref: '#/components/schemas/AddressBase58' - description: Kamino Lend reserve public key example: FBSyPnxtHKLBZ4UeeUyAnbtFuAmTHLtso9YtsqRDRWpM required: true description: Kamino Lend reserve public key name: reservePubkey in: path - schema: type: string default: KLend2g3cP87fffoy8q1mQqGKjrxjC8boSyAYavgmjD description: KLend program ID example: KLend2g3cP87fffoy8q1mQqGKjrxjC8boSyAYavgmjD required: false description: KLend program ID name: programId in: query - schema: type: string enum: - hour - day default: hour description: Frequency of the snapshots example: hour required: false description: Frequency of the snapshots name: frequency in: query - schema: anyOf: - type: string - type: number default: '1970-01-01T00:00:00.000Z' description: Date input (ISO 8601 string or epoch in ms) examples: - '2024-01-01T00:00:00.000Z' - 1704067200000 example: 2020-01-01T00:00Z required: false description: Date input (ISO 8601 string or epoch in ms) name: start in: query - schema: anyOf: - type: string - type: number description: Date input (ISO 8601 string or epoch in ms) examples: - '2024-01-01T00:00:00.000Z' - 1704067200000 example: 2020-02-01T00:00Z required: false description: Date input (ISO 8601 string or epoch in ms) name: end in: query responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/ReserveChartsResponse' '400': description: Bad Request content: application/json: schema: type: object properties: error: type: string description: High-level error message describing the failure example: Invalid query params details: type: array items: type: object additionalProperties: {} description: >- Detailed validation issues (present only for validation errors) required: - error description: Bad request response (400) example: error: Invalid query request details: - code: invalid_union errors: - - code: custom path: [] message: Invalid date string - - expected: number code: invalid_type path: [] message: 'Invalid input: expected number, received string' path: - start message: Invalid input '404': description: Not Found content: application/json: schema: type: object properties: metadata: type: string description: Error message describing why it was not found example: Account could not be found required: - metadata '500': description: Internal Server Error content: application/json: schema: $ref: '#/components/schemas/Error' components: schemas: AddressBase58: type: string description: Valid base58-encoded address example: VEG1EMtttdHunMbSza8uoms1R18VXmYSph2bBpHcSJd ReserveChartsResponse: type: object properties: borrowCurve: type: array items: $ref: '#/components/schemas/BorrowRateCurvePoint' history: type: array items: $ref: '#/components/schemas/ReserveChartsHistoryPoint' required: - borrowCurve - history Error: type: object properties: error: type: string description: Error message for internal server failure example: An internal error occurred required: - error description: Internal server error response (500) example: error: An internal error occurred BorrowRateCurvePoint: type: object properties: utilizationRateBps: allOf: - $ref: '#/components/schemas/Decimal' - description: Utilization rate in basis points example: '8000' borrowRateBps: allOf: - $ref: '#/components/schemas/Decimal' - description: Borrow rate in basis points example: '500' required: - utilizationRateBps - borrowRateBps ReserveChartsHistoryPoint: type: object properties: timestamp: allOf: - $ref: '#/components/schemas/SnapshotDateTime' - description: Timestamp when the snapshot was created (ISO 8601 format) example: '2025-03-01T12:00:00.000Z' supplyApy: allOf: - $ref: '#/components/schemas/Apy' - description: Base supply APY at this point in time example: '0.0412' borrowApy: allOf: - $ref: '#/components/schemas/Apy' - description: Base borrow APY at this point in time example: '0.0621' totalSupply: allOf: - $ref: '#/components/schemas/Decimal' - type: - string - 'null' description: Total reserve supply in UI token units, or null when unavailable example: '125000.5' totalSupplyUsd: allOf: - $ref: '#/components/schemas/Decimal' - type: - string - 'null' description: Total reserve supply in USD, or null when unavailable example: '250001' totalBorrow: allOf: - $ref: '#/components/schemas/Decimal' - type: - string - 'null' description: Total reserve borrow in UI token units, or null when unavailable example: '50000.2' totalBorrowUsd: allOf: - $ref: '#/components/schemas/Decimal' - type: - string - 'null' description: Total reserve borrow in USD, or null when unavailable example: '100000.4' utilization: allOf: - $ref: '#/components/schemas/Decimal' - type: - string - 'null' description: >- Reserve utilization ratio from 0 to 1, calculated as totalBorrowUsd / totalSupplyUsd, or null when unavailable example: '0.4' required: - timestamp - supplyApy - borrowApy - totalSupply - totalSupplyUsd - totalBorrow - totalBorrowUsd - utilization Decimal: type: string description: Decimal value represented as string example: '1234.56789' SnapshotDateTime: type: string format: date-time description: Timestamp of the metrics snapshot example: '2023-06-29T15:15:26.464Z' Apy: type: string description: Borrow interest APY example: '0.027610992938039702' examples: - '0.123' - '0' - '1' - '1.23' - '-0.5' - '999999.999999' ````