BarnBridge SMART Exposure API

openapi: 3.0.3
info:
  title: BarnBridge Governance SMART Exposure API
  description: 'BarnBridge is a risk tokenization DeFi protocol. This REST API exposes endpoints for querying SMART Yield structured products, SMART Alpha price-volatility pools, SMART Exposure automated-rebalancing tranches, DAO Governance proposals and treasury data, and Yield Farming staking analytics.

    '
  version: 2.0.0
  contact:
    name: BarnBridge Discord
    url: https://discord.com/invite/FfEhsVk
  license:
    name: GPL-3.0
    url: https://github.com/BarnBridge/internal-api/blob/main/LICENSE
  x-logo:
    url: https://barnbridge.com/logo.png
servers:
- url: https://api-v2.barnbridge.com
  description: BarnBridge Production API
tags:
- name: SMART Exposure
  description: Automated token-ratio rebalancing tranches
paths:
  /api/smartexposure/pools:
    get:
      operationId: listSmartExposurePools
      summary: List SMART Exposure pools
      tags:
      - SMART Exposure
      description: Returns all SMART Exposure token-pair pools with their current state.
      responses:
        '200':
          description: Array of SMART Exposure pool objects
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessResponse'
  /api/smartexposure/tranches:
    get:
      operationId: listSmartExposureTranches
      summary: List all SMART Exposure tranches
      tags:
      - SMART Exposure
      parameters:
      - name: poolAddress
        in: query
        description: Filter tranches by pool address.
        schema:
          type: string
      responses:
        '200':
          description: Array of tranche objects
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessResponse'
  /api/smartexposure/tranches/{eTokenAddress}:
    get:
      operationId: getSmartExposureTranche
      summary: Get details for a SMART Exposure tranche
      tags:
      - SMART Exposure
      parameters:
      - $ref: '#/components/parameters/eTokenAddress'
      responses:
        '200':
          description: Single tranche object with state
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessResponse'
        '404':
          $ref: '#/components/responses/NotFound'
  /api/smartexposure/tranches/{eTokenAddress}/etoken-price:
    get:
      operationId: getSmartExposureETokenPriceChart
      summary: Get eToken price chart for a tranche
      tags:
      - SMART Exposure
      parameters:
      - $ref: '#/components/parameters/eTokenAddress'
      - $ref: '#/components/parameters/windowParam'
      responses:
        '200':
          description: Time-series eToken price data
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessResponse'
  /api/smartexposure/tranches/{eTokenAddress}/price-trend:
    get:
      operationId: getSmartExposurePriceTrend
      summary: Get underlying token price trend for a tranche
      tags:
      - SMART Exposure
      parameters:
      - $ref: '#/components/parameters/eTokenAddress'
      - $ref: '#/components/parameters/windowParam'
      responses:
        '200':
          description: Time-series underlying-token price trend data
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessResponse'
  /api/smartexposure/tranches/{eTokenAddress}/liquidity:
    get:
      operationId: getSmartExposureTrancheLiquidity
      summary: Get liquidity chart for a SMART Exposure tranche
      tags:
      - SMART Exposure
      parameters:
      - $ref: '#/components/parameters/eTokenAddress'
      - $ref: '#/components/parameters/windowParam'
      responses:
        '200':
          description: Time-series liquidity chart data
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessResponse'
  /api/smartexposure/tranches/{eTokenAddress}/ratio-deviation:
    get:
      operationId: getSmartExposureRatioDeviation
      summary: Get ratio deviation chart for a SMART Exposure tranche
      tags:
      - SMART Exposure
      parameters:
      - $ref: '#/components/parameters/eTokenAddress'
      - $ref: '#/components/parameters/windowParam'
      responses:
        '200':
          description: Time-series ratio-deviation chart data
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessResponse'
  /api/smartexposure/transactions:
    get:
      operationId: listSmartExposureTransactions
      summary: List SMART Exposure transactions
      tags:
      - SMART Exposure
      parameters:
      - name: eTokenAddress
        in: query
        description: Filter by eToken address.
        schema:
          type: string
      - name: userAddress
        in: query
        description: Filter by user address.
        schema:
          type: string
      - $ref: '#/components/parameters/pageParam'
      - $ref: '#/components/parameters/limitParam'
      responses:
        '200':
          description: Paginated list of SMART Exposure transactions
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessResponse'
  /api/smartexposure/users/{userAddress}/portfolio-value:
    get:
      operationId: getSmartExposureUserPortfolioValue
      summary: Get portfolio value chart for a user in SMART Exposure
      tags:
      - SMART Exposure
      parameters:
      - name: userAddress
        in: path
        required: true
        description: Ethereum address of the user.
        schema:
          type: string
        example: '0xabcdef1234567890abcdef1234567890abcdef12'
      - $ref: '#/components/parameters/windowParam'
      responses:
        '200':
          description: Time-series portfolio value chart data
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SuccessResponse'
components:
  schemas:
    Meta:
      type: object
      description: Optional metadata accompanying paginated or block-aware responses.
      properties:
        count:
          type: integer
          description: Total record count (for paginated endpoints).
          example: 125
        block:
          $ref: '#/components/schemas/BlockInfo'
    ErrorResponse:
      type: object
      description: Standard error envelope.
      properties:
        status:
          type: integer
          example: 400
        error:
          type: string
          example: invalid pool address
    SuccessResponse:
      type: object
      description: Standard API success envelope.
      properties:
        status:
          type: integer
          example: 200
        data:
          description: Response payload — array or object depending on endpoint.
          oneOf:
          - type: array
            items: {}
          - type: object
        meta:
          $ref: '#/components/schemas/Meta'
    BlockInfo:
      type: object
      description: Ethereum block context at the time of the query.
      properties:
        blockNumber:
          type: integer
          format: int64
          example: 15234567
        blockTimestamp:
          type: integer
          format: int64
          description: Unix timestamp of the block.
          example: 1660000000
  responses:
    NotFound:
      description: Resource not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  parameters:
    pageParam:
      name: page
      in: query
      description: 1-based page number for pagination.
      schema:
        type: integer
        minimum: 1
        default: 1
    windowParam:
      name: window
      in: query
      description: Time window for chart/trend data (e.g. "24h", "7d", "30d").
      schema:
        type: string
        enum:
        - 24h
        - 7d
        - 30d
        default: 30d
    eTokenAddress:
      name: eTokenAddress
      in: path
      required: true
      description: Ethereum address of the SMART Exposure eToken.
      schema:
        type: string
        pattern: ^0x[0-9a-fA-F]{40}$
      example: '0xb4d09ff3dA7f9e9A2BA029cb0A81A989fd7B8f17'
    limitParam:
      name: limit
      in: query
      description: Number of items per page.
      schema:
        type: integer
        minimum: 1
        maximum: 100
        default: 10