api.duoleads.com

https://api.duoleads.com/v1/ref/country

Shares a payout wallet with 32 other endpoints — its adoption is attributed from that shared wallet's traffic, not earned exclusively.

Look up a country or territory by ISO 3166-1 alpha-2, alpha-3 or numeric code, or by name, and get the other codes, the English name, the UN M49 region and sub-region, the currencies in use, and the country-code top-level domain. Names are matched case- and accent-insensitively. Country level only: ISO 3166-2 subdivisions are not included.

58
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

7 days 30 days

Uptime

100.0% avg
0% 50% 100% Sep 29Oct 1Oct 3Oct 5

Response time

p50 9ms · p95 297ms
0ms 150ms 300ms Sep 29Oct 1Oct 3Oct 5
Data table
Reliability history per time bucket over the last 30 days (daily).
Bucket Uptime Probes Response time
9/29/2026, 12:00:00 AM 100% 8 8ms
9/30/2026, 12:00:00 AM 100% 12 8ms
10/1/2026, 12:00:00 AM 100% 12 100ms
10/2/2026, 12:00:00 AM 100% 12 9ms
10/3/2026, 12:00:00 AM 100% 13 282ms
10/4/2026, 12:00:00 AM 100% 10 9ms
10/5/2026, 12:00:00 AM 100% 6 10ms
58
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
100

How often it was reachable when we probed it (weight 35%).

Latency
100

How quickly it answers when it is up — fast scores high (weight 20%).

Security
100

Whether it serves over working TLS / https (weight 15%).

Transparency
61

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
1

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
USDC
Networks
base
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
Key-Systems GmbH
Domain registered
2020-10-29
Hosting network
CLOUDFLARENET
Hosting country
—

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

On-chain activity (base)

138
payments (30d)
6.9
USD volume (30d)
2
paying wallets (30d)

Payments per day

last payment 10/2/2026
0 30 60 Sep 28Sep 29Oct 1Oct 2
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
9/28/2026 49 2.45 1
9/29/2026 55 2.75 1
10/1/2026 33 1.65 1
10/2/2026 1 0.05 1

This payout wallet is shared: figures cover all 33 endpoints paid at it, since payments cannot be attributed to one of them. Only payments settled on chains and facilitators we index.

Linked by wallet — likely same operator

On-chain agent identity and the x402 endpoint that shares its settlement wallet.

https://api.duoleads.com/v1/code/semver x402 endpoint https://api.duoleads.com/v1/time/dst x402 endpoint https://api.duoleads.com/v1/ref/airport x402 endpoint https://api.duoleads.com/v1/num/allocate x402 endpoint https://api.duoleads.com/v1/geo/geohash x402 endpoint https://api.duoleads.com/v1/chain/address x402 endpoint https://api.duoleads.com/v1/num/stats x402 endpoint https://api.duoleads.com/v1/time/business-days x402 endpoint https://api.duoleads.com/v1/code/url x402 endpoint https://api.duoleads.com/v1/text/transliterate x402 endpoint https://api.duoleads.com/v1/chain/selector x402 endpoint https://api.duoleads.com/v1/ref/nuts x402 endpoint https://api.duoleads.com/v1/code/idn x402 endpoint https://api.duoleads.com/v1/id/national x402 endpoint https://api.duoleads.com/v1/num/radix x402 endpoint https://api.duoleads.com/v1/code/hash x402 endpoint https://api.duoleads.com/v1/geo/polygon x402 endpoint https://api.duoleads.com/v1/text/similarity x402 endpoint https://api.duoleads.com/v1/id/iban x402 endpoint https://api.duoleads.com/v1/id/iban-build x402 endpoint https://api.duoleads.com/v1/code/jwt x402 endpoint https://api.duoleads.com/v1/geo/pluscode x402 endpoint https://api.duoleads.com/v1/text/unicode x402 endpoint https://api.duoleads.com/v1/geo/distance x402 endpoint https://api.duoleads.com/v1/time/rrule x402 endpoint https://api.duoleads.com/v1/id/security x402 endpoint https://api.duoleads.com/v1/time/zone x402 endpoint https://api.duoleads.com/v1/text/slug x402 endpoint https://api.duoleads.com/v1/id/gs1 x402 endpoint https://api.duoleads.com/v1/time/calendar x402 endpoint https://api.duoleads.com/v1/num/words x402 endpoint https://api.duoleads.com/v1/ref/currency x402 endpoint
Response schema 
{
  "properties": {
    "data": {
      "description": "found, kind (country|subdivision), alpha_2, alpha_3, numeric, name, official_name (the ISO 3166-1 official name from Debian iso-codes, e.g. \"Kingdom of the Netherlands\"; the short name where ISO defines no separate official name; always a string), m49 {region, region_name, subregion, subregion_name, intermediate, intermediate_name} (UN M49 codes as zero-padded 3-character strings; subregion and intermediate are null where the hierarchy has no such level), currencies [ISO 4217 alpha-3, legal tender in use per CLDR], tld [\".xx\"] (the ccTLD in actual use, so GB gives .uk; empty where none is delegated), subdivision_count (always present: the number of ISO 3166-2 subdivisions), and with include=subdivisions subdivisions [{code, name, type, parent}] (ISO 3166-2 from Debian iso-codes main of 2026-09-28, source order; parent is the parent subdivision code or null; countries with none return an empty list). A code of the form CC-XXX (e.g. NL-NH) resolves a subdivision: kind is subdivision, subdivision {code, name, type, parent} is added, and the country fields describe its country. m49, currencies and tld are omitted when not named in include; subdivision_count is not. A name search adds matches [{alpha_2, alpha_3, numeric, name}] (exact name first, then substring; at most 25) plus total_matches, and the top-level fields describe the first match. ZZ and other non-ISO codes are never found.",
      "properties": {
        "alpha_2": {
          "type": "string"
        },
        "alpha_3": {
          "type": "string"
        },
        "currencies": {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        "found": {
          "type": "boolean"
        },
        "kind": {
          "type": "string"
        },
        "m49": {
          "properties": {
            "intermediate": {
              "type": [
                "string",
                "null"
              ]
            },
            "intermediate_name": {
              "type": [
                "string",
                "null"
              ]
            },
            "region": {
              "type": [
                "string",
                "null"
              ]
            },
            "region_name": {
              "type": [
                "string",
                "null"
              ]
            },
            "subregion": {
              "type": [
                "string",
                "null"
              ]
            },
            "subregion_name": {
              "type": [
                "string",
                "null"
              ]
            }
          },
          "required": [
            "region",
            "region_name",
            "subregion",
            "subregion_name",
            "intermediate",
            "intermediate_name"
          ],
          "type": "object"
        },
        "matches": {
          "items": {
            "properties": {
              "alpha_2": {
                "type": "string"
              },
              "alpha_3": {
                "type": "string"
              },
              "name": {
                "type": "string"
              },
              "numeric": {
                "type": "string"
              }
            },
            "required": [
              "alpha_2",
              "alpha_3",
              "numeric",
              "name"
            ],
            "type": "object"
          },
          "type": "array"
        },
        "name": {
          "type": "string"
        },
        "numeric": {
          "type": "string"
        },
        "official_name": {
          "type": "string"
        },
        "subdivision": {
          "properties": {
            "code": {
              "type": "string"
            },
            "name": {
              "type": "string"
            },
            "parent": {
              "type": [
                "string",
                "null"
              ]
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "code",
            "name",
            "type",
            "parent"
          ],
          "type": "object"
        },
        "subdivision_count": {
          "type": "integer"
        },
        "subdivisions": {
          "items": {
            "properties": {
              "code": {
                "type": "string"
              },
              "name": {
                "type": "string"
              },
              "parent": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "code",
              "name",
              "type",
              "parent"
            ],
            "type": "object"
          },
          "type": "array"
        },
        "tld": {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        "total_matches": {
          "type": "integer"
        }
      },
      "required": [
        "found"
      ],
      "type": "object"
    },
    "meta": {
      "$ref": "#/components/schemas/Meta"
    },
    "ok": {
      "const": true
    },
    "route": {
      "const": "/v1/ref/country"
    },
    "version": {
      "const": "1.0.0"
    }
  },
  "required": [
    "ok",
    "route",
    "version",
    "data",
    "meta"
  ],
  "type": "object"
}