{
  "generated_at": "2026-05-11T00:56:48.476130+00:00",
  "slug": "bluepages-fyi-check",
  "title": "Bluepages \u00b7 Check",
  "url": "https://bluepages.fyi/check",
  "category": "data",
  "summary": "Bluepages \u00b7 Check \u2014 x402-protected data API. Pay $0.0010 per call on base. Indexed by x402all.",
  "seo": {
    "title": "Bluepages \u00b7 Check \u2014 x402 data API \u00b7 $0.0010 per call",
    "description": "Bluepages \u00b7 Check \u2014 x402-protected data API. Pay $0.0010 per call on base. Indexed by x402all."
  },
  "use_cases": [],
  "risk_notes": [
    "May process personal / identity data."
  ],
  "pricing_sanity": {
    "flag": "cheap_outlier",
    "ratio": 0.05,
    "median_category_atomic": 20000
  },
  "pricing_review_required": false,
  "pricing_decimal_suspect": false,
  "trust_tier": "indexed_external",
  "accepts": [
    {
      "scheme": "exact",
      "network": "base",
      "pay_to": "0xc21bdbba05d3662f0f63ac6d209c6cb17e61aad3",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "max_amount_required_atomic": "1000",
      "max_timeout_seconds": 60,
      "description": "Check if a cryptocurrency address or Twitter handle exists in our database. Returns boolean flags for Twitter and Farcaster availability. Use query parameters: ?address=0x... OR ?twitter=@handle. Fast and cheap way to verify data existence before purchasing full details.",
      "verified": false,
      "hints": {
        "input": {
          "type": "http",
          "method": "POST",
          "bodyType": "json",
          "bodyFields": {
            "address": {
              "type": "string",
              "required": false,
              "description": "Ethereum address to check (e.g., 0x...). Either address or twitter must be provided."
            },
            "twitter": {
              "type": "string",
              "required": false,
              "description": "Twitter handle to check (with or without @ symbol, e.g., @vitalik or vitalik). Either address or twitter must be provided."
            }
          }
        },
        "output": {
          "exists": {
            "type": "boolean",
            "description": "Whether any data exists for this address/Twitter handle (true if twitter OR farcaster is true)"
          },
          "twitter": {
            "type": "boolean",
            "description": "Whether the address/Twitter handle has an associated Twitter account in the database"
          },
          "farcaster": {
            "type": "boolean",
            "description": "Whether the address has an associated Farcaster username in the database"
          }
        }
      }
    },
    {
      "scheme": "exact",
      "network": "base",
      "pay_to": "0xc21bDbba05d3662f0F63AC6d209C6cb17E61aAD3",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "max_amount_required_atomic": "1000",
      "max_timeout_seconds": 60,
      "mime_type": "application/json",
      "description": "Check if an address or identity (Twitter, email, username) exists in database.",
      "hints": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "address": {
              "type": "string",
              "required": false,
              "description": "Ethereum address to check"
            },
            "identity": {
              "type": "string",
              "required": false,
              "description": "Username/handle to check (Twitter, email, etc.)"
            }
          }
        },
        "output": {
          "types": {
            "type": "array",
            "description": "Types of identities found (twitter, farcaster, email)"
          },
          "exists": {
            "type": "boolean",
            "description": "Whether data exists"
          }
        }
      }
    }
  ],
  "origin": {
    "slug": "bluepages-fyi",
    "host": "bluepages.fyi",
    "url": "https://bluepages.fyi",
    "favicon": "https://bluepages.fyi/favicon.png"
  },
  "json_ld": {
    "@id": "https://x402all.com/resource/bluepages-fyi-check",
    "url": "https://x402all.com/resource/bluepages-fyi-check",
    "name": "Bluepages \u00b7 Check",
    "@type": "WebAPI",
    "offers": [
      {
        "url": "https://x402all.com/resource/bluepages-fyi-check",
        "@type": "Offer",
        "price": "0.001",
        "availability": "https://schema.org/InStock",
        "priceCurrency": "USDC",
        "additionalProperty": [
          {
            "name": "paymentNetwork",
            "@type": "PropertyValue",
            "value": "base"
          },
          {
            "name": "paymentAsset",
            "@type": "PropertyValue",
            "value": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          }
        ],
        "priceSpecification": {
          "@type": "UnitPriceSpecification",
          "price": "0.001000",
          "unitText": "call",
          "priceCurrency": "USDC"
        },
        "eligibleCustomerType": "Agent"
      },
      {
        "url": "https://x402all.com/resource/bluepages-fyi-check",
        "@type": "Offer",
        "price": "0.001",
        "availability": "https://schema.org/InStock",
        "priceCurrency": "USDC",
        "additionalProperty": [
          {
            "name": "paymentNetwork",
            "@type": "PropertyValue",
            "value": "base"
          },
          {
            "name": "paymentAsset",
            "@type": "PropertyValue",
            "value": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          }
        ],
        "priceSpecification": {
          "@type": "UnitPriceSpecification",
          "price": "0.001000",
          "unitText": "call",
          "priceCurrency": "USDC"
        },
        "eligibleCustomerType": "Agent"
      }
    ],
    "sameAs": "https://bluepages.fyi/check",
    "@context": "https://schema.org",
    "provider": {
      "@id": "https://x402all.com/server/bluepages-fyi",
      "url": "https://bluepages.fyi",
      "name": "bluepages.fyi",
      "@type": "Organization"
    },
    "identifier": "bluepages-fyi-check",
    "description": "Bluepages \u00b7 Check \u2014 x402-protected data API. Pay $0.0010 per call on base. Indexed by x402all.",
    "potentialAction": {
      "@type": "BuyAction",
      "target": "https://axon402.com/test-buy?resource=bluepages-fyi-check",
      "description": "Test-buy this endpoint on AXON"
    },
    "applicationCategory": "data"
  },
  "axon_deep_link": "https://axon402.com/test-buy?resource=bluepages-fyi-check",
  "callability": {
    "status": "call_ready",
    "schema_callability": 0.722,
    "source": "provider_openapi",
    "source_confidence": 0.9,
    "match_confidence": 0.95,
    "schema_confidence": 1.0,
    "validated_at": "2026-05-10T23:23:25.225627+00:00",
    "warnings": []
  },
  "contract": {
    "method": "GET",
    "route_template": "/check",
    "content_type": "application/json",
    "query_schema": {
      "type": "object",
      "properties": {
        "address": {
          "type": "string",
          "example": "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb1"
        },
        "identity": {
          "type": "string",
          "example": "@vitalikbuterin"
        }
      }
    },
    "response_schema": {
      "type": "object",
      "properties": {
        "query": {
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "description": "Query type (e.g., 'address' or 'identity')"
            },
            "value": {
              "type": "string",
              "description": "Normalized query value"
            }
          }
        },
        "types": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Identity types found (e.g., ['twitter', 'farcaster'])"
        },
        "exists": {
          "type": "boolean",
          "description": "Whether any identity data exists for the queried input"
        },
        "message": {
          "type": "string"
        },
        "timestamp": {
          "type": "string",
          "format": "date-time"
        }
      }
    },
    "examples": [],
    "schema_presence": {
      "path_schema": "unknown",
      "query_schema": "declared",
      "header_schema": "unknown",
      "request_body_schema": "explicit_none",
      "response_schema": "declared"
    },
    "contract_hash": "c1646fd04031f41b2ec4d3dc563346af6ea2ff32df0fad3b007fab4ab1b55036"
  }
}