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OpenAPI Specification

openapi: 3.2.0
info:
  title: Checkpoint402 Com Defi API
  version: 1.0.0
  termsOfService: https://checkpoint402.com/terms
  x-guidance: Each endpoint is GET with query parameters and returns JSON. Pay per call with x402 (USDC on Base). Errors (4xx/5xx) are not charged.
  description: 'Operations tagged defi across 2 of this provider''s published API definitions: checkpoint402-com-openapi.json, checkpoint402-com-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://api.checkpoint402.com
  description: Production (base URL stated at https://checkpoint402.com/docs)
tags:
- name: defi
paths:
  /v1/defi-yields:
    get:
      operationId: defiYields
      summary: Best DeFi Yield Finder
      description: 'Top DeFi yields across 16k+ pools, filtered by asset, chain, minimum TVL and risk, each with a simple explained risk tier (outlier APY, thin TVL, reward-heavy, IL exposure). Data: DefiLlama.'
      tags:
      - defi
      parameters:
      - name: asset
        in: query
        required: false
        description: Token symbol, e.g. USDC, ETH
        schema:
          type: string
      - name: chain
        in: query
        required: false
        description: Chain name, e.g. Base, Ethereum, Arbitrum
        schema:
          type: string
      - name: minTvlUsd
        in: query
        required: false
        description: Minimum pool TVL in USD (default 1,000,000)
        schema:
          type: number
      - name: stablecoinOnly
        in: query
        required: false
        description: Only stablecoin pools
        schema:
          type: boolean
      - name: maxRisk
        in: query
        required: false
        description: Highest risk tier to include (default medium; use high to include outlier APYs)
        schema:
          type: string
          enum:
          - low
          - medium
          - high
      - name: limit
        in: query
        required: false
        description: Results, 1-50 (default 10)
        schema:
          type: number
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.050000'
        protocols:
        - x402: {}
      responses:
        '200':
          description: Result
          content:
            application/json:
              schema:
                type: object
        '400':
          description: Invalid input (not charged)
        '402':
          description: Payment Required
        '502':
          description: Upstream data source unavailable (not charged)
x-refined-from:
- checkpoint402-com-openapi.json
- checkpoint402-com-openapi.yml