openapi: 3.1.0
info:
  title: DefiLlama Public Coins Volumes API
  version: 1.0.0
  description: DefiLlama is the largest open-source DeFi TVL and yield aggregator. The public REST API at api.llama.fi exposes TVL, prices, stablecoins, yields, DEX/options volumes, fees, and revenue datasets without authentication. The Pro API at pro-api.llama.fi provides higher rate limits and additional endpoints under a paid plan.
  contact:
    name: DefiLlama
    url: https://defillama.com/docs/api
  license:
    name: Open Data
    url: https://defillama.com
servers:
- url: https://api.llama.fi
  description: Free public API (no auth)
- url: https://coins.llama.fi
  description: Coins and prices API
- url: https://stablecoins.llama.fi
  description: Stablecoins API
- url: https://yields.llama.fi
  description: Yields API
- url: https://pro-api.llama.fi/{apiKey}
  description: Pro API (paid)
  variables:
    apiKey:
      default: YOUR_API_KEY
      description: DefiLlama Pro API key
security: []
tags:
- name: Volumes
paths:
  /overview/dexs:
    get:
      tags:
      - Volumes
      summary: All DEX summaries
      operationId: overviewDexs
      responses:
        '200':
          description: DEX overview
          content:
            application/json:
              schema:
                type: object
  /overview/dexs/{chain}:
    get:
      tags:
      - Volumes
      summary: DEX overview filtered by chain
      operationId: overviewDexsByChain
      parameters:
      - in: path
        name: chain
        required: true
        schema:
          type: string
      responses:
        '200':
          description: DEX overview
          content:
            application/json:
              schema:
                type: object
  /summary/dexs/{protocol}:
    get:
      tags:
      - Volumes
      summary: DEX volume summary for a protocol
      operationId: summaryDexsProtocol
      parameters:
      - in: path
        name: protocol
        required: true
        schema:
          type: string
      responses:
        '200':
          description: DEX summary
          content:
            application/json:
              schema:
                type: object
  /overview/options:
    get:
      tags:
      - Volumes
      summary: Options DEX overview
      operationId: overviewOptions
      responses:
        '200':
          description: Options overview
          content:
            application/json:
              schema:
                type: object
  /overview/options/{chain}:
    get:
      tags:
      - Volumes
      summary: Options DEX overview by chain
      operationId: overviewOptionsByChain
      parameters:
      - in: path
        name: chain
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Options overview
          content:
            application/json:
              schema:
                type: object
  /summary/options/{protocol}:
    get:
      tags:
      - Volumes
      summary: Options DEX summary for a protocol
      operationId: summaryOptionsProtocol
      parameters:
      - in: path
        name: protocol
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Options summary
          content:
            application/json:
              schema:
                type: object
  /overview/open-interest:
    get:
      tags:
      - Volumes
      summary: Open interest exchanges overview
      operationId: openInterestOverview
      responses:
        '200':
          description: Open interest data
          content:
            application/json:
              schema:
                type: object
components:
  securitySchemes:
    apiKeyPath:
      type: apiKey
      in: query
      name: apiKey
      description: Pro API key is supplied as a path segment in the base URL (pro-api.llama.fi/{apiKey}); this scheme is a placeholder.