{
  "x402Version": 2,
  "id": 36300,
  "slug": "36300",
  "resource": "https://api.duoleads.com/v1/num/words",
  "description": "Spell a number out in words in English, Dutch, German, French, Spanish, Italian, Portuguese, Polish, Russian, Turkish, Swedish or Japanese, in cardinal, ordinal or currency form. Currency form agrees the number with the currency noun and gives real minor-unit names for 19 currencies (EUR, USD, GBP, CHF, SEK, NOK, DKK, PLN, RUB, TRY, CNY, INR, BRL, MXN, CAD, AUD, NZD, CZK, HUF); any other ISO 4217 code uses a fraction such as 56/100. Values up to 10^15.",
  "type": "http",
  "serviceName": "Duo Data Utilities",
  "resourceType": "Monitoring",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "50000",
      "amountUsd": 0.05,
      "maxTimeoutSeconds": 120
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "properties": {
          "data": {
            "properties": {
              "currency": {
                "properties": {
                  "code": {
                    "type": "string"
                  },
                  "minor_plural": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "minor_singular": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "minor_units": {
                    "type": "integer"
                  },
                  "unit_plural": {
                    "type": "string"
                  },
                  "unit_singular": {
                    "type": "string"
                  }
                },
                "required": [
                  "code",
                  "unit_singular",
                  "unit_plural",
                  "minor_singular",
                  "minor_plural",
                  "minor_units"
                ],
                "type": [
                  "object",
                  "null"
                ]
              },
              "form": {
                "type": "string"
              },
              "lang": {
                "type": "string"
              },
              "parts": {
                "properties": {
                  "integer_words": {
                    "type": "string"
                  },
                  "minor_words": {
                    "type": [
                      "string",
                      "null"
                    ]
                  }
                },
                "required": [
                  "integer_words",
                  "minor_words"
                ],
                "type": [
                  "object",
                  "null"
                ]
              },
              "rounding_applied": {
                "type": "boolean"
              },
              "value": {
                "type": "string"
              },
              "words": {
                "type": "string"
              }
            },
            "required": [
              "words",
              "value",
              "lang",
              "form",
              "currency"
            ],
            "type": "object"
          },
          "meta": {
            "properties": {
              "computed_at": {
                "description": "RFC 3339 UTC with milliseconds",
                "type": "string"
              },
              "deterministic": {
                "type": "boolean"
              },
              "disclaimer": {
                "type": "string"
              },
              "price_usd": {
                "type": "string"
              },
              "request_id": {
                "type": "string"
              },
              "sources": {
                "items": {
                  "required": [
                    "id",
                    "version",
                    "published"
                  ],
                  "type": "object"
                },
                "type": "array"
              }
            },
            "required": [
              "request_id",
              "computed_at",
              "price_usd",
              "deterministic",
              "disclaimer"
            ],
            "type": "object"
          },
          "ok": {
            "const": true
          },
          "route": {
            "const": "/v1/num/words"
          },
          "version": {
            "type": "string"
          }
        },
        "required": [
          "ok",
          "route",
          "version",
          "data",
          "meta"
        ],
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "lang": "nl",
            "value": "1234"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "data": {
              "currency": null,
              "form": "cardinal",
              "lang": "nl",
              "parts": null,
              "value": "1234",
              "words": "duizend tweehonderdvierendertig"
            },
            "meta": {
              "computed_at": "2026-09-28T12:00:00.000Z",
              "deterministic": true,
              "disclaimer": "Factual output of a deterministic computation over public data. Provided as is, with no warranty of accuracy, completeness or availability. Not investment, financial, legal, tax, medical or any other professional advice, and not a recommendation. Verify before relying on it. Terms: https://api.duoleads.com/terms",
              "price_usd": "0.05",
              "request_id": "01K6B7Q4ZC8H3F2M9WXR5TYN0D"
            },
            "ok": true,
            "route": "/v1/num/words",
            "version": "1.0.0"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {
                  "case": {
                    "default": "lower",
                    "description": "lower (default), sentence or title.",
                    "enum": [
                      "lower",
                      "sentence",
                      "title"
                    ],
                    "maxLength": 64,
                    "type": "string"
                  },
                  "currency": {
                    "description": "ISO 4217 code. Required when form=currency, rejected otherwise.",
                    "maxLength": 16,
                    "type": "string"
                  },
                  "form": {
                    "default": "cardinal",
                    "description": "cardinal (default), ordinal, currency or year.",
                    "enum": [
                      "cardinal",
                      "ordinal",
                      "currency",
                      "year"
                    ],
                    "maxLength": 64,
                    "type": "string"
                  },
                  "lang": {
                    "default": "en",
                    "description": "Language, ISO 639-1. Default en.",
                    "enum": [
                      "en",
                      "nl",
                      "de",
                      "fr",
                      "es",
                      "it",
                      "pt",
                      "pl",
                      "ru",
                      "tr",
                      "sv",
                      "ja"
                    ],
                    "maxLength": 64,
                    "type": "string"
                  },
                  "value": {
                    "description": "Integer or decimal, absolute value below 1e15.",
                    "maxLength": 32,
                    "type": "string"
                  }
                },
                "required": [
                  "value"
                ],
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "properties": {
                  "data": {
                    "properties": {
                      "currency": {
                        "properties": {
                          "code": {
                            "type": "string"
                          },
                          "minor_plural": {
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "minor_singular": {
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "minor_units": {
                            "type": "integer"
                          },
                          "unit_plural": {
                            "type": "string"
                          },
                          "unit_singular": {
                            "type": "string"
                          }
                        },
                        "required": [
                          "code",
                          "unit_singular",
                          "unit_plural",
                          "minor_singular",
                          "minor_plural",
                          "minor_units"
                        ],
                        "type": [
                          "object",
                          "null"
                        ]
                      },
                      "form": {
                        "type": "string"
                      },
                      "lang": {
                        "type": "string"
                      },
                      "parts": {
                        "properties": {
                          "integer_words": {
                            "type": "string"
                          },
                          "minor_words": {
                            "type": [
                              "string",
                              "null"
                            ]
                          }
                        },
                        "required": [
                          "integer_words",
                          "minor_words"
                        ],
                        "type": [
                          "object",
                          "null"
                        ]
                      },
                      "rounding_applied": {
                        "type": "boolean"
                      },
                      "value": {
                        "type": "string"
                      },
                      "words": {
                        "type": "string"
                      }
                    },
                    "required": [
                      "words",
                      "value",
                      "lang",
                      "form",
                      "currency"
                    ],
                    "type": "object"
                  },
                  "meta": {
                    "properties": {
                      "computed_at": {
                        "description": "RFC 3339 UTC with milliseconds",
                        "type": "string"
                      },
                      "deterministic": {
                        "type": "boolean"
                      },
                      "disclaimer": {
                        "type": "string"
                      },
                      "price_usd": {
                        "type": "string"
                      },
                      "request_id": {
                        "type": "string"
                      },
                      "sources": {
                        "items": {
                          "required": [
                            "id",
                            "version",
                            "published"
                          ],
                          "type": "object"
                        },
                        "type": "array"
                      }
                    },
                    "required": [
                      "request_id",
                      "computed_at",
                      "price_usd",
                      "deterministic",
                      "disclaimer"
                    ],
                    "type": "object"
                  },
                  "ok": {
                    "const": true
                  },
                  "route": {
                    "const": "/v1/num/words"
                  },
                  "version": {
                    "type": "string"
                  }
                },
                "required": [
                  "ok",
                  "route",
                  "version",
                  "data",
                  "meta"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "deterministic",
    "no-api-key",
    "num",
    "numbers",
    "localisation",
    "bazaar"
  ],
  "sourceHost": "api.duoleads.com",
  "lastUpdated": "2026-10-01T20:53:32.026Z",
  "quality": {
    "calls30d": 18,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-10-01T20:53:31.91Z"
  },
  "metadata": {
    "serviceName": "Duo Data Utilities",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "lang": "nl",
              "value": "1234"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "currency": null,
                "form": "cardinal",
                "lang": "nl",
                "parts": null,
                "value": "1234",
                "words": "duizend tweehonderdvierendertig"
              },
              "meta": {
                "computed_at": "2026-09-28T12:00:00.000Z",
                "deterministic": true,
                "disclaimer": "Factual output of a deterministic computation over public data. Provided as is, with no warranty of accuracy, completeness or availability. Not investment, financial, legal, tax, medical or any other professional advice, and not a recommendation. Verify before relying on it. Terms: https://api.duoleads.com/terms",
                "price_usd": "0.05",
                "request_id": "01K6B7Q4ZC8H3F2M9WXR5TYN0D"
              },
              "ok": true,
              "route": "/v1/num/words",
              "version": "1.0.0"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "case": {
                      "default": "lower",
                      "description": "lower (default), sentence or title.",
                      "enum": [
                        "lower",
                        "sentence",
                        "title"
                      ],
                      "maxLength": 64,
                      "type": "string"
                    },
                    "currency": {
                      "description": "ISO 4217 code. Required when form=currency, rejected otherwise.",
                      "maxLength": 16,
                      "type": "string"
                    },
                    "form": {
                      "default": "cardinal",
                      "description": "cardinal (default), ordinal, currency or year.",
                      "enum": [
                        "cardinal",
                        "ordinal",
                        "currency",
                        "year"
                      ],
                      "maxLength": 64,
                      "type": "string"
                    },
                    "lang": {
                      "default": "en",
                      "description": "Language, ISO 639-1. Default en.",
                      "enum": [
                        "en",
                        "nl",
                        "de",
                        "fr",
                        "es",
                        "it",
                        "pt",
                        "pl",
                        "ru",
                        "tr",
                        "sv",
                        "ja"
                      ],
                      "maxLength": 64,
                      "type": "string"
                    },
                    "value": {
                      "description": "Integer or decimal, absolute value below 1e15.",
                      "maxLength": 32,
                      "type": "string"
                    }
                  },
                  "required": [
                    "value"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "data": {
                      "properties": {
                        "currency": {
                          "properties": {
                            "code": {
                              "type": "string"
                            },
                            "minor_plural": {
                              "type": [
                                "string",
                                "null"
                              ]
                            },
                            "minor_singular": {
                              "type": [
                                "string",
                                "null"
                              ]
                            },
                            "minor_units": {
                              "type": "integer"
                            },
                            "unit_plural": {
                              "type": "string"
                            },
                            "unit_singular": {
                              "type": "string"
                            }
                          },
                          "required": [
                            "code",
                            "unit_singular",
                            "unit_plural",
                            "minor_singular",
                            "minor_plural",
                            "minor_units"
                          ],
                          "type": [
                            "object",
                            "null"
                          ]
                        },
                        "form": {
                          "type": "string"
                        },
                        "lang": {
                          "type": "string"
                        },
                        "parts": {
                          "properties": {
                            "integer_words": {
                              "type": "string"
                            },
                            "minor_words": {
                              "type": [
                                "string",
                                "null"
                              ]
                            }
                          },
                          "required": [
                            "integer_words",
                            "minor_words"
                          ],
                          "type": [
                            "object",
                            "null"
                          ]
                        },
                        "rounding_applied": {
                          "type": "boolean"
                        },
                        "value": {
                          "type": "string"
                        },
                        "words": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "words",
                        "value",
                        "lang",
                        "form",
                        "currency"
                      ],
                      "type": "object"
                    },
                    "meta": {
                      "properties": {
                        "computed_at": {
                          "description": "RFC 3339 UTC with milliseconds",
                          "type": "string"
                        },
                        "deterministic": {
                          "type": "boolean"
                        },
                        "disclaimer": {
                          "type": "string"
                        },
                        "price_usd": {
                          "type": "string"
                        },
                        "request_id": {
                          "type": "string"
                        },
                        "sources": {
                          "items": {
                            "required": [
                              "id",
                              "version",
                              "published"
                            ],
                            "type": "object"
                          },
                          "type": "array"
                        }
                      },
                      "required": [
                        "request_id",
                        "computed_at",
                        "price_usd",
                        "deterministic",
                        "disclaimer"
                      ],
                      "type": "object"
                    },
                    "ok": {
                      "const": true
                    },
                    "route": {
                      "const": "/v1/num/words"
                    },
                    "version": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "ok",
                    "route",
                    "version",
                    "data",
                    "meta"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "api.duoleads.com",
    "manifest_name": "api.duoleads.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "example": {
      "data": {
        "currency": {
          "code": "string",
          "minor_plural": "string",
          "minor_singular": "string",
          "minor_units": 0,
          "unit_plural": "string",
          "unit_singular": "string"
        },
        "form": "string",
        "lang": "string",
        "parts": {
          "integer_words": "string",
          "minor_words": "string"
        },
        "rounding_applied": true,
        "value": "string",
        "words": "string"
      },
      "meta": {
        "computed_at": "string",
        "deterministic": true,
        "disclaimer": "string",
        "price_usd": "string",
        "request_id": "string",
        "sources": [
          {}
        ]
      },
      "ok": null,
      "route": null,
      "version": "string"
    },
    "type": "string"
  }
}