openapi: 3.1.0
info:
  title: Ankr Advanced EVM Metrics API
  description: 'The Ankr Advanced API (AAPI) provides a specifically-tailored collection of JSON-RPC

    methods that optimize, index, cache, and store blockchain data across multiple

    EVM-compatible blockchains. The Advanced API exposes three logical groups:

    NFT, Token, and Query.

    '
  version: 1.0.0
  contact:
    name: Ankr
    url: https://www.ankr.com
    email: support@ankr.com
  license:
    name: Ankr Terms of Service
    url: https://www.ankr.com/terms/
servers:
- url: https://rpc.ankr.com/multichain
  description: Public multichain endpoint
- url: https://rpc.ankr.com/multichain/{API_KEY}
  description: Premium multichain endpoint
  variables:
    API_KEY:
      default: API_KEY
      description: Premium Plan project API key
security:
- {}
- ApiKeyAuth: []
tags:
- name: Metrics
  description: Liquid staking pool statistics (TVL, APR, holders, supply).
paths:
  /v1.0/metrics:
    get:
      summary: Ankr Get Staking Metrics
      description: Returns Ankr Liquid Staking metrics across all supported tokens.
      operationId: getStakingMetrics
      tags:
      - Metrics
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StakingMetricsList'
        4XX:
          $ref: '#/components/responses/ErrorResponse'
  /v1.0/metrics/{token}:
    get:
      summary: Ankr Get Staking Metrics By Token
      description: Returns staking metrics for a single liquid staking token.
      operationId: getStakingMetricsByToken
      tags:
      - Metrics
      parameters:
      - $ref: '#/components/parameters/Token'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StakingMetrics'
        4XX:
          $ref: '#/components/responses/ErrorResponse'
components:
  responses:
    ErrorResponse:
      description: Error response.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    StakingMetrics:
      type: object
      properties:
        token:
          type: string
        tvlUsd:
          type: string
        apr:
          type: string
        supply:
          type: string
        holders:
          type: integer
        exchangeRatio:
          type: string
    StakingMetricsList:
      type: array
      items:
        $ref: '#/components/schemas/StakingMetrics'
    Error:
      type: object
      properties:
        code:
          type: integer
        message:
          type: string
  parameters:
    Token:
      name: token
      in: path
      required: true
      schema:
        type: string
        enum:
        - ankrETH
        - ankrBNB
        - ankrPOL
        - ankrAVAX
        - ankrFTM
        - ankrDOT
        - ankrFLOW
      description: Liquid staking token symbol.
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: query
      name: API_KEY
      description: Premium Plan API key passed as the trailing path segment.