Duo Data Utilities

Encode coordinates as an Open Location Code (plus code) at a chosen length, or decode a full code back to its bounding box and centre. Also shortens a full code against a reference coordinate and recovers a shortened code given a reference, which is how plus codes are normally exchanged in text. Returns code length, precision in metres and validity.

DataLiveeip155:8453Exactvia facilitator:payAI
DeterministicNo-api-keyGeoPluscode
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$14.97
Verified settled volume
390 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required",
  "terms": "https://api.duoleads.com/terms",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://api.duoleads.com/v1/geo/pluscode",
    "tags": [
      "deterministic",
      "no-api-key",
      "geo",
      "pluscode"
    ],
    "mimeType": "application/json",
    "description": "Encode coordinates as an Open Location Code (plus code) at a chosen length, or decode a full code back to its bounding box and centre. Also shortens a full code against a reference coordinate and recovers a shortened code given a reference, which is how plus codes are normally exchanged in text. Returns code length, precision in metres and validity.",
    "serviceName": "Duo Data Utilities"
  },
  "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",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "lat": "52.3728",
            "lon": "4.8936"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "data": {
              "bbox": {
                "max_lat": 52.372875,
                "max_lon": 4.893625,
                "min_lat": 52.37275,
                "min_lon": 4.8935
              },
              "code": "9F469VFV+4C",
              "valid": true,
              "center": {
                "lat": 52.3728125,
                "lon": 4.8935625
              },
              "length": 10,
              "reason": null,
              "is_full": true,
              "is_short": false,
              "precision_m": 13.9
            },
            "meta": {
              "price_usd": "0.05",
              "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",
              "request_id": "01K6B7Q4ZC8H3F2M9WXR5TYN0D",
              "computed_at": "2026-09-28T12:00:00.000Z",
              "deterministic": true
            },
            "route": "/v1/geo/pluscode",
            "version": "1.0.0"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [],
                "properties": {
                  "op": {
                    "enum": [
                      "encode",
                      "decode",
                      "shorten",
                      "recover"
                    ],
                    "type": "string",
                    "default": "encode",
                    "maxLength": 64,
                    "description": "encode (default), decode, shorten or recover."
                  },
                  "lat": {
                    "type": "string",
                    "pattern": "^[+-]?(\\d+(\\.\\d*)?|\\.\\d+)([eE][+-]?\\d+)?$",
                    "maxLength": 64,
                    "description": "Latitude for op=encode."
                  },
                  "lon": {
                    "type": "string",
                    "pattern": "^[+-]?(\\d+(\\.\\d*)?|\\.\\d+)([eE][+-]?\\d+)?$",
                    "maxLength": 64,
                    "description": "Longitude for op=encode."
                  },
                  "code": {
                    "type": "string",
                    "maxLength": 20,
                    "description": "Plus code for decode, shorten or recover."
                  },
                  "length": {
                    "type": "string",
                    "default": "10",
                    "pattern": "^[+-]?\\d+$",
                    "maxLength": 64,
                    "description": "Integer code length for op=encode: one of 2,4,6,8,10 (default),11,12,13,14,15. Other integers in 2-15 are 400 UNSUPPORTED_VALUE."
                  },
                  "ref_lat": {
                    "type": "string",
                    "pattern": "^[+-]?(\\d+(\\.\\d*)?|\\.\\d+)([eE][+-]?\\d+)?$",
                    "maxLength": 64,
                    "description": "Reference latitude for op=shorten/recover."
                  },
                  "ref_lon": {
                    "type": "string",
                    "pattern": "^[+-]?(\\d+(\\.\\d*)?|\\.\\d+)([eE][+-]?\\d+)?$",
                    "maxLength": 64,
                    "description": "Reference longitude for op=shorten/recover."
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "ok",
                  "route",
                  "version",
                  "data",
                  "meta"
                ],
                "properties": {
                  "ok": {
                    "const": true
                  },
                  "data": {
                    "type": "object",
                    "required": [
                      "code",
                      "length",
                      "is_full",
                      "is_short",
                      "valid"
                    ],
                    "properties": {
                      "bbox": {
                        "type": "object",
                        "required": [
                          "min_lat",
                          "min_lon",
                          "max_lat",
                          "max_lon"
                        ],
                        "properties": {
                          "max_lat": {
                            "type": "number"
                          },
                          "max_lon": {
                            "type": "number"
                          },
                          "min_lat": {
                            "type": "number"
                          },
                          "min_lon": {
                            "type": "number"
                          }
                        }
                      },
                      "code": {
                        "type": "string"
                      },
                      "valid": {
                        "type": "boolean"
                      },
                      "center": {
                        "type": "object",
                        "required": [
                          "lat",
                          "lon"
                        ],
                        "properties": {
                          "lat": {
                            "type": "number"
                          },
                          "lon": {
                            "type": "number"
                          }
                        }
                      },
                      "length": {
                        "type": [
                          "integer",
                          "null"
                        ]
                      },
                      "reason": {
                        "type": [
                          "string",
                          "null"
                        ]
                      },
                      "is_full": {
                        "type": "boolean"
                      },
                      "is_short": {
                        "type": "boolean"
                      },
                      "full_code": {
                        "type": "string"
                      },
                      "precision_m": {
                        "type": "number"
                      }
                    }
                  },
                  "meta": {
                    "type": "object",
                    "required": [
                      "request_id",
                      "computed_at",
                      "price_usd",
                      "deterministic",
                      "disclaimer"
                    ],
                    "properties": {
                      "sources": {
                        "type": "array",
                        "items": {
                          "type": "object",
                          "required": [
                            "id",
                            "version",
                            "published"
                          ]
                        }
                      },
                      "price_usd": {
                        "type": "string"
                      },
                      "disclaimer": {
                        "type": "string"
                      },
                      "request_id": {
                        "type": "string"
                      },
                      "computed_at": {
                        "type": "string",
                        "description": "RFC 3339 UTC with milliseconds"
                      },
                      "deterministic": {
                        "type": "boolean"
                      }
                    }
                  },
                  "route": {
                    "const": "/v1/geo/pluscode"
                  },
                  "version": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.05USDC≈ $0.05 USD
on Base · exact scheme

Pay 0.05 USDC on Base to 0xCD67…b3A39. The signed payment is good for 2 minutes.

USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
50000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "lat": "52.3728",
          "lon": "4.8936"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "ok": true,
          "data": {
            "bbox": {
              "max_lat": 52.372875,
              "max_lon": 4.893625,
              "min_lat": 52.37275,
              "min_lon": 4.8935
            },
            "code": "9F469VFV+4C",
            "valid": true,
            "center": {
              "lat": 52.3728125,
              "lon": 4.8935625
            },
            "length": 10,
            "reason": null,
            "is_full": true,
            "is_short": false,
            "precision_m": 13.9
          },
          "meta": {
            "price_usd": "0.05",
            "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",
            "request_id": "01K6B7Q4ZC8H3F2M9WXR5TYN0D",
            "computed_at": "2026-09-28T12:00:00.000Z",
            "deterministic": true
          },
          "route": "/v1/geo/pluscode",
          "version": "1.0.0"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [],
              "properties": {
                "op": {
                  "enum": [
                    "encode",
                    "decode",
                    "shorten",
                    "recover"
                  ],
                  "type": "string",
                  "default": "encode",
                  "maxLength": 64,
                  "description": "encode (default), decode, shorten or recover."
                },
                "lat": {
                  "type": "string",
                  "pattern": "^[+-]?(\\d+(\\.\\d*)?|\\.\\d+)([eE][+-]?\\d+)?$",
                  "maxLength": 64,
                  "description": "Latitude for op=encode."
                },
                "lon": {
                  "type": "string",
                  "pattern": "^[+-]?(\\d+(\\.\\d*)?|\\.\\d+)([eE][+-]?\\d+)?$",
                  "maxLength": 64,
                  "description": "Longitude for op=encode."
                },
                "code": {
                  "type": "string",
                  "maxLength": 20,
                  "description": "Plus code for decode, shorten or recover."
                },
                "length": {
                  "enum": [
                    "2",
                    "4",
                    "6",
                    "8",
                    "10",
                    "11",
                    "12",
                    "13",
                    "14",
                    "15"
                  ],
                  "type": "string",
                  "default": "10",
                  "maxLength": 64,
                  "description": "Code length for op=encode: 2,4,6,8,10 (default),11,12,13,14,15."
                },
                "ref_lat": {
                  "type": "string",
                  "pattern": "^[+-]?(\\d+(\\.\\d*)?|\\.\\d+)([eE][+-]?\\d+)?$",
                  "maxLength": 64,
                  "description": "Reference latitude for op=shorten/recover."
                },
                "ref_lon": {
                  "type": "string",
                  "pattern": "^[+-]?(\\d+(\\.\\d*)?|\\.\\d+)([eE][+-]?\\d+)?$",
                  "maxLength": 64,
                  "description": "Reference longitude for op=shorten/recover."
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "ok",
                "route",
                "version",
                "data",
                "meta"
              ],
              "properties": {
                "ok": {
                  "type": "boolean",
                  "const": true
                },
                "data": {
                  "type": "object"
                },
                "meta": {
                  "type": "object",
                  "required": [
                    "request_id",
                    "computed_at",
                    "price_usd",
                    "deterministic",
                    "disclaimer"
                  ],
                  "properties": {
                    "sources": {
                      "type": "array"
                    },
                    "price_usd": {
                      "type": "string"
                    },
                    "disclaimer": {
                      "type": "string"
                    },
                    "request_id": {
                      "type": "string"
                    },
                    "computed_at": {
                      "type": "string"
                    },
                    "deterministic": {
                      "type": "boolean"
                    }
                  }
                },
                "route": {
                  "type": "string"
                },
                "version": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-29 00:55Z
Last indexed by Roundhouse
2026-10-26 18:15Z
Last enriched (probe, favicon, geo)
2026-09-29 20:45Z
x402 version
2
Max timeout
120s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service Duo Data Utilities and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Duo%20Data%20Utilities'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://api.duoleads.com/v1/geo/pluscode, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.