quickleaves API

payment-readyonline

payment-ready until 2026-11-03

B2B data enrichment API: details, customers, partners, vendors and competitors for a given company domain, each with a source link.

Compare: all lead enrichment APIs

quickleaves.com ↗

Call it x402 v2

x402 v2

Base URL: https://api.quickleaves.com
Payment: x402 v2, header channel

$ curl -i 'https://api.quickleaves.com/api/v1/company/competitors'

An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.

Endpoints 8 paid routes on api.quickleaves.com

GET/api/v1/company/competitorsBase$0.0435since 10-27

GET/api/v1/company/customersBase$0.5945since 10-27

GET/api/v1/company/detailsBase$0.029since 10-27

GET/api/v1/company/peopleBase$0.377since 10-27

GET/api/v1/company/searchBase$0.0145since 10-27

GET/api/v1/company/vendorsBase$0.5945since 10-27

GET/api/v1/profileBase$0.029since 10-27

POST/api/v1/work-email/lookupBase$0.029since 10-27

Prices as captured in the 402 response: median $0.03625 across the 8 endpoints, unchanged since first capture.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
Method	Path	Description	Price	Network	Asset	402 channel	Captured
GET	/api/v1/company/competitors	Competitors: Direct competitors of a company: publicly evidenced competitors first, then similar companies.	$0.0435	Base	USDC	header	since 10-27
GET	/api/v1/company/customers	Customers and partners: B2B companies publicly evidenced as customers of the company, each with a confidence score and the verbatim quote that shows it.	$0.5945	Base	USDC	header	since 10-27
GET	/api/v1/company/details	Company details: Enriches a company domain with its profile data: firmographics, tech stack, hiring and executives.	$0.029	Base	USDC	header	since 10-27
GET	/api/v1/company/people	Company people: People data for a company: the people of the company found on the public web, with the published title, executive roles and seniority read from it, and the page where each was seen.	$0.377	Base	USDC	header	since 10-27
GET	/api/v1/company/search	Search companies: Ranks enriched companies by the meaning of a plain-words query, for example q=tools to chase unpaid invoices.	$0.0145	Base	USDC	header	since 10-27
GET	/api/v1/company/vendors	Vendors: The reverse of /company/customers: vendors with a public page that names this company as their customer, each with a confidence score and that evidence page and quote.	$0.5945	Base	USDC	header	since 10-27
GET	/api/v1/profile	Public profile: People data enrichment from one public page: the person described by an openly published page (company bio, speaker page, personal site): name, title, seniority, company, location, and an address only when the page prints it.	$0.029	Base	USDC	header	since 10-27
POST	/api/v1/work-email/lookup	Work e-mail lookup: Enriches a person with a work e-mail: finds and checks the work e-mail of a person at a company.	$0.029	Base	USDC	header	since 10-27

Payment evidence

402 payload captured at 2026-10-27 11:32:02 UTC. Check evidence JSON · Measurement methodology.

{
  "error": "PAYMENT-SIGNATURE header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x131503DdefbA6510F37C160D0889A7f3D9D49d53",
      "amount": "29000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://api.quickleaves.com/api/v1/company/details",
    "tags": [
      "enrichment",
      "company data",
      "people data",
      "b2b data",
      "firmographics"
    ],
    "iconUrl": "https://quickleaves.com/metadata/android-chrome-192x192.png",
    "mimeType": "application/json",
    "description": "Company details: Enriches a company domain with its profile data: firmographics, tech stack, hiring and executives.",
    "serviceName": "quickleaves API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "domain": "stripe.com"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "name": "Airtable",
            "domain": "airtable.com",
            "industry": "Data Infrastructure",
            "logo_url": "https://www.airtable.com/favicon.ico",
            "description": "500,000+ brands use Airtable to enable …",
            "identifiers": {},
            "founded_year": 2012,
            "headquarters": {
              "city": "San Francisco",
              "country": "US"
            },
            "business_model": "b2b",
            "employee_count": {
              "max": 700,
              "min": 700
            },
            "pricing_motion": "hybrid",
            "technographics": {
              "tech_stack": [
                "apple"
              ],
              "email_pattern": "first.last",
              "email_provider": "google_workspace"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "domain"
                ],
                "properties": {
                  "cache": {
                    "type": "string"
                  },
                  "fresh": {
                    "type": "boolean"
                  },
                  "domain": {
                    "type": "string"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "name": {
                    "type": "string"
                  },
                  "domain": {
                    "type": "string"
                  },
                  "hiring": {
                    "type": "object"
                  },
                  "tagline": {
                    "type": "string"
                  },
                  "industry": {
                    "type": "string"
                  },
                  "logo_url": {
                    "type": "string"
                  },
                  "sic_code": {
                    "type": "string"
                  },
                  "websites": {
                    "type": "array"
                  },
                  "executives": {
                    "type": "array"
                  },
                  "description": {
                    "type": "string"
                  },
                  "identifiers": {
                    "type": "object"
                  },
                  "company_type": {
                    "type": "string"
                  },
                  "founded_year": {
                    "type": "integer"
                  },
                  "headquarters": {
                    "type": "object"
                  },
                  "business_model": {
                    "type": "string"
                  },
                  "employee_count": {
                    "type": "object"
                  },
                  "pricing_motion": {
                    "type": "string"
                  },
                  "public_listing": {
                    "type": "object"
                  },
                  "technographics": {
                    "type": "object"
                  },
                  "cover_image_url": {
                    "type": "string"
                  },
                  "social_profiles": {
                    "type": "object"
                  },
                  "last_enriched_at": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Other captured 402 responses (7)

Captured payload 2 of 8

{
  "error": "PAYMENT-SIGNATURE header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x131503DdefbA6510F37C160D0889A7f3D9D49d53",
      "amount": "594500",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://api.quickleaves.com/api/v1/company/customers",
    "tags": [
      "enrichment",
      "company data",
      "people data",
      "b2b data",
      "firmographics"
    ],
    "iconUrl": "https://quickleaves.com/metadata/android-chrome-192x192.png",
    "mimeType": "application/json",
    "description": "Customers and partners: B2B companies publicly evidenced as customers of the company, each with a confidence score and the verbatim quote that shows it.",
    "serviceName": "quickleaves API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "domain": "stripe.com"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "count": 2,
            "company": {
              "name": "Stripe",
              "domain": "stripe.com"
            },
            "customers": [
              {
                "name": "Carousell",
                "basis": "evidenced",
                "domain": "carousell.sg",
                "confidence": 1,
                "source_count": 19,
                "domain_status": "verified",
                "first_seen_at": "2026-10-19T14:09:30.094156+00:00",
                "last_verified_at": "2026-10-22T10:33:53.751575+00:00"
              }
            ],
            "max_results": 2,
            "next_cursor": "MC45Nnw2MzkyODI2MjAzMzc1MTU3NTB8MDFhMTU…",
            "min_confidence": 0.7,
            "include_unverified": false
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "domain"
                ],
                "properties": {
                  "cache": {
                    "type": "string"
                  },
                  "fresh": {
                    "type": "boolean"
                  },
                  "cursor": {
                    "type": "string"
                  },
                  "domain": {
                    "type": "string"
                  },
                  "include": {
                    "type": "string"
                  },
                  "max_results": {
                    "type": "integer"
                  },
                  "include_unverified": {
                    "type": "boolean"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "count": {
                    "type": "integer"
                  },
                  "company": {
                    "type": "object"
                  },
                  "partners": {
                    "type": "array"
                  },
                  "customers": {
                    "type": "array"
                  },
                  "max_results": {
                    "type": "integer"
                  },
                  "next_cursor": {
                    "type": "string"
                  },
                  "min_confidence": {
                    "type": "number"
                  },
                  "partners_count": {
                    "type": "integer"
                  },
                  "include_unverified": {
                    "type": "boolean"
                  },
                  "partners_next_cursor": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 3 of 8

{
  "error": "PAYMENT-SIGNATURE header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x131503DdefbA6510F37C160D0889A7f3D9D49d53",
      "amount": "43500",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://api.quickleaves.com/api/v1/company/competitors",
    "tags": [
      "enrichment",
      "company data",
      "people data",
      "b2b data",
      "firmographics"
    ],
    "iconUrl": "https://quickleaves.com/metadata/android-chrome-192x192.png",
    "mimeType": "application/json",
    "description": "Competitors: Direct competitors of a company: publicly evidenced competitors first, then similar companies.",
    "serviceName": "quickleaves API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "domain": "stripe.com"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "count": 3,
            "limit": 3,
            "company": {
              "name": "Stripe",
              "domain": "stripe.com"
            },
            "competitors": [
              {
                "name": "Paddle",
                "basis": "evidenced",
                "domain": "paddle.com",
                "reason": "compare_page",
                "confidence": 0.8,
                "source_count": 1,
                "domain_status": "verified",
                "first_seen_at": "2026-10-19T15:19:46.401102+00:00",
                "last_verified_at": "2026-10-20T19:35:00.466324+00:00"
              }
            ]
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "domain"
                ],
                "properties": {
                  "cache": {
                    "type": "string"
                  },
                  "fresh": {
                    "type": "boolean"
                  },
                  "limit": {
                    "type": "integer"
                  },
                  "domain": {
                    "type": "string"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "count": {
                    "type": "integer"
                  },
                  "limit": {
                    "type": "integer"
                  },
                  "company": {
                    "type": "object"
                  },
                  "competitors": {
                    "type": "array"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 4 of 8

{
  "error": "PAYMENT-SIGNATURE header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x131503DdefbA6510F37C160D0889A7f3D9D49d53",
      "amount": "14500",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://api.quickleaves.com/api/v1/company/search",
    "tags": [
      "enrichment",
      "company data",
      "people data",
      "b2b data",
      "firmographics"
    ],
    "iconUrl": "https://quickleaves.com/metadata/android-chrome-192x192.png",
    "mimeType": "application/json",
    "description": "Search companies: Ranks enriched companies by the meaning of a plain-words query, for example q=tools to chase unpaid invoices.",
    "serviceName": "quickleaves API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "tools to chase unpaid invoices"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "count": 3,
            "query": "tools to chase unpaid invoices",
            "results": [
              {
                "name": "Harvest",
                "domain": "getharvest.com",
                "similarity": 0.7536,
                "match_score": 4.104
              }
            ],
            "max_results": 3
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [],
                "properties": {
                  "q": {
                    "type": "string"
                  },
                  "max_results": {
                    "type": "integer"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "count": {
                    "type": "integer"
                  },
                  "query": {
                    "type": "string"
                  },
                  "results": {
                    "type": "array"
                  },
                  "max_results": {
                    "type": "integer"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 5 of 8

{
  "error": "PAYMENT-SIGNATURE header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x131503DdefbA6510F37C160D0889A7f3D9D49d53",
      "amount": "594500",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://api.quickleaves.com/api/v1/company/vendors",
    "tags": [
      "enrichment",
      "company data",
      "people data",
      "b2b data",
      "firmographics"
    ],
    "iconUrl": "https://quickleaves.com/metadata/android-chrome-192x192.png",
    "mimeType": "application/json",
    "description": "Vendors: The reverse of /company/customers: vendors with a public page that names this company as their customer, each with a confidence score and that evidence page and quote.",
    "serviceName": "quickleaves API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "domain": "stripe.com"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "count": 2,
            "company": {
              "name": "OpenAI",
              "domain": "openai.com"
            },
            "vendors": [
              {
                "name": "Clay",
                "basis": "evidenced",
                "domain": "clay.com",
                "confidence": 0.988,
                "source_count": 1,
                "domain_status": "verified",
                "first_seen_at": "2026-10-19T13:48:47.171756+00:00",
                "last_verified_at": "2026-10-19T13:48:53.44877+00:00"
              }
            ],
            "max_results": 2,
            "next_cursor": "MC45ODZ8NjM5MjgwMTUyNzk0NTAzMzgwfDAxYTE…",
            "min_confidence": 0.7,
            "include_unverified": false,
            "company_domain_status": "verified"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "domain"
                ],
                "properties": {
                  "cursor": {
                    "type": "string"
                  },
                  "domain": {
                    "type": "string"
                  },
                  "max_results": {
                    "type": "integer"
                  },
                  "include_unverified": {
                    "type": "boolean"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "count": {
                    "type": "integer"
                  },
                  "company": {
                    "type": "object"
                  },
                  "vendors": {
                    "type": "array"
                  },
                  "max_results": {
                    "type": "integer"
                  },
                  "next_cursor": {
                    "type": "string"
                  },
                  "min_confidence": {
                    "type": "number"
                  },
                  "include_unverified": {
                    "type": "boolean"
                  },
                  "company_domain_status": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 6 of 8

{
  "error": "PAYMENT-SIGNATURE header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x131503DdefbA6510F37C160D0889A7f3D9D49d53",
      "amount": "377000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://api.quickleaves.com/api/v1/company/people",
    "tags": [
      "enrichment",
      "company data",
      "people data",
      "b2b data",
      "firmographics"
    ],
    "iconUrl": "https://quickleaves.com/metadata/android-chrome-192x192.png",
    "mimeType": "application/json",
    "description": "Company people: People data for a company: the people of the company found on the public web, with the published title, executive roles and seniority read from it, and the page where each was seen.",
    "serviceName": "quickleaves API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "domain": "stripe.com"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "count": 3,
            "limit": 3,
            "people": [
              {
                "title": "Co-founder & CEO",
                "full_name": "Jane Doe",
                "last_name": "Doe",
                "seniority": "c_suite",
                "first_name": "Jane",
                "profile_url": "https://www.example.com/about/team",
                "last_verified_at": "2026-10-22T15:18:22.056499+00:00"
              }
            ],
            "company": {
              "name": "Example",
              "domain": "example.com"
            },
            "next_cursor": "MXwwMTk5YTFiMmMzZDRlNWY2MDcxODI5M2E0YjV…"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "domain"
                ],
                "properties": {
                  "role": {
                    "type": "string"
                  },
                  "cache": {
                    "type": "string"
                  },
                  "fresh": {
                    "type": "boolean"
                  },
                  "limit": {
                    "type": "integer"
                  },
                  "title": {
                    "type": "string"
                  },
                  "cursor": {
                    "type": "string"
                  },
                  "domain": {
                    "type": "string"
                  },
                  "seniority": {
                    "type": "string"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "count": {
                    "type": "integer"
                  },
                  "limit": {
                    "type": "integer"
                  },
                  "people": {
                    "type": "array"
                  },
                  "company": {
                    "type": "object"
                  },
                  "next_cursor": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 7 of 8

{
  "error": "PAYMENT-SIGNATURE header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x131503DdefbA6510F37C160D0889A7f3D9D49d53",
      "amount": "29000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://api.quickleaves.com/api/v1/profile",
    "tags": [
      "enrichment",
      "company data",
      "people data",
      "b2b data",
      "firmographics"
    ],
    "iconUrl": "https://quickleaves.com/metadata/android-chrome-192x192.png",
    "mimeType": "application/json",
    "description": "Public profile: People data enrichment from one public page: the person described by an openly published page (company bio, speaker page, personal site): name, title, seniority, company, location, and an address only when the page prints it.",
    "serviceName": "quickleaves API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "url": "https://example.com/team/jane-doe"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "title": "Co-founder & CEO",
            "company": {
              "name": "Example",
              "domain": "example.com"
            },
            "full_name": "Jane Doe",
            "last_name": "Doe",
            "seniority": "c_suite",
            "first_name": "Jane",
            "profile_url": "https://www.example.com/about/team",
            "last_verified_at": "2026-10-21T21:30:21.3121618+00:00"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "url"
                ],
                "properties": {
                  "url": {
                    "type": "string"
                  },
                  "fresh": {
                    "type": "boolean"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "email": {
                    "type": "object"
                  },
                  "title": {
                    "type": "string"
                  },
                  "company": {
                    "type": "object"
                  },
                  "location": {
                    "type": "string"
                  },
                  "full_name": {
                    "type": "string"
                  },
                  "last_name": {
                    "type": "string"
                  },
                  "seniority": {
                    "type": "string"
                  },
                  "first_name": {
                    "type": "string"
                  },
                  "profile_url": {
                    "type": "string"
                  },
                  "last_verified_at": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 8 of 8

{
  "error": "PAYMENT-SIGNATURE header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x131503DdefbA6510F37C160D0889A7f3D9D49d53",
      "amount": "29000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://api.quickleaves.com/api/v1/work-email/lookup",
    "tags": [
      "enrichment",
      "company data",
      "people data",
      "b2b data",
      "firmographics"
    ],
    "iconUrl": "https://quickleaves.com/metadata/android-chrome-192x192.png",
    "mimeType": "application/json",
    "description": "Work e-mail lookup: Enriches a person with a work e-mail: finds and checks the work e-mail of a person at a company.",
    "serviceName": "quickleaves API"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "domain": "example.com",
            "last_name": "Doe",
            "first_name": "Jane"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "domain": "stripe.com",
            "evidence": "no conclusive evidence",
            "provider": "quickleaves",
            "confidence": 0,
            "domain_has_mx": true,
            "deliverability": "unknown"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "first_name",
                  "last_name",
                  "domain"
                ],
                "properties": {
                  "domain": {
                    "type": "string"
                  },
                  "last_name": {
                    "type": "string"
                  },
                  "first_name": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "type": "string",
                "const": "json"
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "email": {
                    "type": "string"
                  },
                  "domain": {
                    "type": "string"
                  },
                  "evidence": {
                    "type": "string"
                  },
                  "provider": {
                    "type": "string"
                  },
                  "confidence": {
                    "type": "number"
                  },
                  "domain_has_mx": {
                    "type": "boolean"
                  },
                  "deliverability": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

84/100 Solid

                           │         │    ····│···
0                          55        75       93

                │     │   ·│··
0               55    75   93

#200 of 436 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability: 100% uptime since 10-27
Compliance: A 14/14 checks pass
Price: $0.0145 to $0.5945 p74 in Data
Risk: clean no risk flag
Traction: $0.00 30d 0 buyers

14/14 compliance checks

402 payload captured
accepts[] array present
payTo address recoverable
payTo at accepts[0].payTo (conformant shape)
payTo is a valid on-chain address
atomic price declared
atomic price in a sane range
asset (token) address declared
network resolves to CAIP-2
payment scheme declared
served over HTTPS
declares the current x402 version (2)
EIP-712 domain parameters present on every EVM entry
x402 v2 envelope delivered in the payment-required header

402 terms unchanged since 2026-10-27. Last up 2026-10-27.

── Site signals

homepage reachable
openapi doc
pricing page
llms.txt
robots.txt
terms page

How the score works

What the score read on this service: status online, 100% uptime, latest daily rollup (no 30d window yet), 206ms response p95, x402 compliance 14 of 14, $0.0145 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 436 listings, this one among them: the same 436 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Traction is a conservative undercount.

All measured facts

What it does

B2B data enrichment API: details, customers, partners, vendors and competitors for a given company domain, each with a source link. REST and MCP for AI agents and sales teams.

quickleaves API is a listed x402 Data API. Captured payment terms name Base. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.

Assessment computed at 2026-10-27 11:33:31 UTC. Latest service check observed at 2026-10-27 13:41:05 UTC. Service data JSON · Measurement methodology.

Page rendered at 2026-10-27 13:41:55 UTC. This response time is separate from the observation and computation times attached to each measurement.

Latest endpoint observation: 2026-10-27 13:41:05 UTC. Latest price capture: 2026-10-27 11:30:18 UTC. Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.

Assessment computed at 2026-10-27 11:33:31 UTC. Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.

Observed daily coverage: 2026-09-28 to 2026-10-27 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.

Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.

x402 List home · Services · Data

uptime · latest daily rollup: -
uptime 7d: -
uptime 30d: -
uptime 90d: -
response p95: 206ms
avg response: 206ms
total checks: 1

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

price (min): $0.0145
price (max): $0.5945
category percentile (min): p74 in Data
category percentile (max): p88 in Data
endpoints / prices: 8 / 5
model: tiered
stability: 100%

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age: -
registrar: -
hosting: custom
domain created: ---

Identity facts, not a risk score.

assessment volume 30d: $0.00
exact assessment volume 30d (USD): 0
assessment recorded at (UTC): 2026-10-27T11:33:31.305Z
buyers 30d: 0
settlements 30d: 0
measured since: --- (start of our harvest window)
last settlement: ---
top buyer share: -
top 3 buyers share: -
concentrated volume: no
trend 7d vs 30d: -
networks: eip155:8453
volume all-time: $0
settlements all-time: 0
median settlement 30d: -
max settlement 30d: -

Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.

member since: 2026-10-27

Recent checks

Latest 9 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)	Status	HTTP	Response	Endpoints
2026-10-27 13:41:05 UTC	Online	402	172ms	8
2026-10-27 13:25:04 UTC	Online	402	148ms	8
2026-10-27 13:09:02 UTC	Online	402	109ms	8
2026-10-27 12:53:03 UTC	Online	402	160ms	8
2026-10-27 12:37:02 UTC	Online	402	181ms	8
2026-10-27 12:21:02 UTC	Online	402	251ms	8
2026-10-27 12:04:02 UTC	Online	402	242ms	8
2026-10-27 11:48:01 UTC	Online	402	137ms	8
2026-10-27 11:32:02 UTC	Online	402	206ms	8

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume daily snapshots, USD 30d: $0.00

                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
       ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  
    $0

volume no data in the payload

Distinct buyers per dayDistinct buyers per day

        ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·

Uptime no completed-day data

       ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ·  ██

       09-28                                     10-12                                   10-27*

Volume 30d: $0.00
Uptime: no completed-day data

Daily on-chain settlement volume in US dollars, 2026-09-28 to 2026-10-27; 1 day has no data in the payload; distinct buyers per day

Day    Volume             USD  Buyers
10-27* · no data

More charts

Response time daily average, ms min 196ms, avg 196ms, max 196ms

                                                                                              ██

09-28 to 10-27* UTC

█

      09-28         10-12     10-27*

Each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/quickleaves-api/price, /scores, /volume and /buyers.

Values

* today so far, partial (UTC).

The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.

Daily snapshot total, no volume data in the last 30d. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.

Daily address snapshots: 2026-09-28 to 2026-10-27 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here.

Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.

Assessment history last recorded at 2026-10-27 11:33:31 UTC. Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.

Daily values, 2026-10-27 to 2026-10-27: address settlement volume in USD, distinct buyer and settlement counts, uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
Day	Volume	Buyers	Settlements	Uptime	Response	Compliance	Price percentile	Site signals
2026-10-27*	no data	no data	no data	100%	196.17ms	14/14	p74	4/6

Alternatives in Data

claw402 strong 97/100 100% up 30d $1.3k 30d

SniperX•x402 strong 97/100 99.9% up 30d $689.64 30d

glim.sh strong 95/100 100% up 30d $34.32 30d

cn402 strong 93/100 100% up 30d $37.21 30d

x402node solid 93/100 100% up 30d $37.21 30d

5 of 435 other ranked services in Data, ordered by the same measured score.

see the whole category

Own this service?

Keep this listing accurate. Ownership is proven with a domain check and every change is reviewed by hand.

Update this listing

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

Verify this service ($0.25)

Embed a badge

HTML

<a href="https://x402-list.com/services/quickleaves-api?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/quickleaves-api.svg" alt="quickleaves API listed on x402-list" height="28">
</a>

Markdown

[![quickleaves API on x402-list](https://x402-list.com/badge/quickleaves-api.svg)](https://x402-list.com/services/quickleaves-api?utm_source=badge&utm_medium=referral&utm_campaign=embed)

HTML, live uptime variant

<a href="https://x402-list.com/services/quickleaves-api?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/quickleaves-api.svg?data=uptime" alt="quickleaves API uptime on x402-list" height="28">
</a>

Delisting

To request delisting, email info@x402-list.com with the service name, slug, or URL. Removal is free and does not require proof of ownership. Contact.