> ## 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 SOFR rate history

> Returns daily SOFR rates published by the New York Fed from 2023 onwards, including the compounded SOFR index and 30/90/180-day compounded averages. The rate can be null for the latest date because the index is published one business day ahead of the rate. Supports filtering by date range (whole days, inclusive).



## OpenAPI

````yaml /kamino-api.json get /benchmark-rates/sofr/history
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:
  /benchmark-rates/sofr/history:
    get:
      tags:
        - Other
      summary: Get SOFR rate history
      description: >-
        Returns daily SOFR rates published by the New York Fed from 2023
        onwards, including the compounded SOFR index and 30/90/180-day
        compounded averages. The rate can be null for the latest date because
        the index is published one business day ahead of the rate. Supports
        filtering by date range (whole days, inclusive).
      parameters:
        - 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/SofrRateHistoryResponse'
        '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
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    SofrRateHistoryResponse:
      type: array
      items:
        $ref: '#/components/schemas/SofrRateHistoryItem'
    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
    SofrRateHistoryItem:
      type: object
      properties:
        date:
          type: string
          format: date
          description: Effective date of the rate (as published by the New York Fed)
          example: '2024-01-10'
        rate:
          type:
            - string
            - 'null'
          example: '1234.56789'
          description: Daily SOFR rate in percent, null when not yet published for the date
        index:
          allOf:
            - $ref: '#/components/schemas/Decimal'
            - description: SOFR compounded index
        avg30d:
          allOf:
            - $ref: '#/components/schemas/Decimal'
            - description: 30-day compounded average SOFR in percent
        avg90d:
          allOf:
            - $ref: '#/components/schemas/Decimal'
            - description: 90-day compounded average SOFR in percent
        avg180d:
          allOf:
            - $ref: '#/components/schemas/Decimal'
            - description: 180-day compounded average SOFR in percent
      required:
        - date
        - rate
        - index
        - avg30d
        - avg90d
        - avg180d
    Decimal:
      type: string
      description: Decimal value represented as string
      example: '1234.56789'

````