api.duoleads.com

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

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

Look up a currency by ISO 4217 code: its alphabetic and numeric codes, English name, minor-unit exponent, the smallest cash denomination where it differs from the minor unit, and the territories that use it. Returns the correct rounding increment for cash amounts, which is what a caller needs to render or settle a price. This route returns currency facts only and never an exchange rate.

58
reliability

Reliability & health

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

Uptime

100.0% avg
0% 50% 100% Tue 9 AMThu 9 AMSat 7 AMMon 2 PM

Response time

p50 8ms · p95 13ms
0ms 100ms 200ms Tue 9 AMThu 9 AMSat 7 AMMon 2 PM
Data table
Reliability history per time bucket over the last 7 days (hourly).
Bucket Uptime Probes Response time
9/29/2026, 9:00:00 AM 100% 1 6ms
9/29/2026, 10:00:00 AM 100% 1 6ms
9/29/2026, 12:00:00 PM 100% 1 7ms
9/29/2026, 2:00:00 PM 100% 1 7ms
9/29/2026, 4:00:00 PM 100% 1 7ms
9/29/2026, 7:00:00 PM 100% 1 8ms
9/29/2026, 9:00:00 PM 100% 1 7ms
9/29/2026, 11:00:00 PM 100% 1 8ms
9/30/2026, 1:00:00 AM 100% 1 9ms
9/30/2026, 3:00:00 AM 100% 1 9ms
9/30/2026, 5:00:00 AM 100% 1 8ms
9/30/2026, 7:00:00 AM 100% 1 7ms
9/30/2026, 9:00:00 AM 100% 1 7ms
9/30/2026, 11:00:00 AM 100% 1 7ms
9/30/2026, 1:00:00 PM 100% 1 8ms
9/30/2026, 3:00:00 PM 100% 1 8ms
9/30/2026, 5:00:00 PM 100% 1 8ms
9/30/2026, 7:00:00 PM 100% 1 8ms
9/30/2026, 9:00:00 PM 100% 1 9ms
9/30/2026, 11:00:00 PM 100% 1 8ms
10/1/2026, 1:00:00 AM 100% 1 10ms
10/1/2026, 3:00:00 AM 100% 1 8ms
10/1/2026, 5:00:00 AM 100% 1 8ms
10/1/2026, 7:00:00 AM 100% 1 9ms
10/1/2026, 9:00:00 AM 100% 1 11ms
10/1/2026, 11:00:00 AM 100% 1 9ms
10/1/2026, 1:00:00 PM 100% 1 8ms
10/1/2026, 3:00:00 PM 100% 1 9ms
10/1/2026, 4:00:00 PM 100% 1 9ms
10/1/2026, 6:00:00 PM 100% 1 9ms
10/1/2026, 8:00:00 PM 100% 1 129ms
10/1/2026, 10:00:00 PM 100% 1 15ms
10/2/2026, 12:00:00 AM 100% 1 9ms
10/2/2026, 2:00:00 AM 100% 1 7ms
10/2/2026, 4:00:00 AM 100% 1 9ms
10/2/2026, 6:00:00 AM 100% 1 9ms
10/2/2026, 8:00:00 AM 100% 1 7ms
10/2/2026, 10:00:00 AM 100% 1 7ms
10/2/2026, 12:00:00 PM 100% 1 8ms
10/2/2026, 2:00:00 PM 100% 1 8ms
10/2/2026, 4:00:00 PM 100% 1 9ms
10/2/2026, 6:00:00 PM 100% 1 8ms
10/2/2026, 8:00:00 PM 100% 1 38ms
10/2/2026, 11:00:00 PM 100% 1 9ms
10/3/2026, 12:00:00 AM 100% 1 9ms
10/3/2026, 1:00:00 AM 100% 1 9ms
10/3/2026, 3:00:00 AM 100% 1 9ms
10/3/2026, 5:00:00 AM 100% 1 8ms
10/3/2026, 7:00:00 AM 100% 1 8ms
10/3/2026, 9:00:00 AM 100% 1 8ms
10/3/2026, 11:00:00 AM 100% 1 8ms
10/3/2026, 1:00:00 PM 100% 1 8ms
10/3/2026, 3:00:00 PM 100% 1 10ms
10/3/2026, 5:00:00 PM 100% 1 8ms
10/3/2026, 7:00:00 PM 100% 1 8ms
10/3/2026, 9:00:00 PM 100% 1 9ms
10/3/2026, 11:00:00 PM 100% 1 8ms
10/4/2026, 1:00:00 AM 100% 1 9ms
10/4/2026, 2:00:00 AM 100% 1 10ms
10/4/2026, 4:00:00 AM 100% 1 8ms
10/4/2026, 6:00:00 AM 100% 1 7ms
10/4/2026, 8:00:00 AM 100% 1 8ms
10/4/2026, 1:00:00 PM 100% 1 9ms
10/4/2026, 3:00:00 PM 100% 1 8ms
10/4/2026, 5:00:00 PM 100% 1 8ms
10/4/2026, 7:00:00 PM 100% 1 8ms
10/4/2026, 9:00:00 PM 100% 1 9ms
10/5/2026, 2:00:00 AM 100% 1 9ms
10/5/2026, 7:00:00 AM 100% 1 10ms
10/5/2026, 9:00:00 AM 100% 1 35ms
10/5/2026, 11:00:00 AM 100% 1 8ms
10/5/2026, 1:00:00 PM 100% 1 8ms
10/5/2026, 2:00:00 PM 100% 1 7ms
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/ref/country 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
Response schema
{
  "properties": {
    "data": {
      "description": "found, code, numeric (3-digit string per ISO 4217; null for the three historic codes XFO, XFU, XRE), name (ISO 4217 English name, e.g. Lek, Forint, Rupiah), minor_units (ISO 4217 exponent, e.g. IDR 2, HUF 2, JPY 0, KWD 3; null where ISO lists N.A.: precious metals XAU, XAG, XPT, XPD, XDR, XXX and the other X-codes; null for historic codes), cash_minor_units (equals minor_units unless CLDR gives a cash digit count, e.g. SEK 0), cash_rounding (number|null: CLDR cash rounding increment expressed in ISO minor units, e.g. 5 for CHF and CAD means 0.05, 50 for DKK, 500 for HUF meaning 5.00; null when none), is_fund (boolean: the ISO 4217 fund flag, true for BOV, CHE, CHW, CLF, COU, MXV, USN, UYI, UYW and XAD, false otherwise), territories (ISO 3166-1 alpha-2 codes, sorted, when include has territories; territory sets come from CLDR), status (current|historic), withdrawn (ISO withdrawal date as published, usually YYYY-MM, historic codes only). Historic codes come from ISO 4217 list three and are only found with include=historic, by alphabetic or numeric code (e.g. DEM 276, ZWD 716); a code that is in both lists (EUR, RON) is current. Some numeric codes were reused by several historic codes: the most recently withdrawn code is returned and the others are listed in numeric_shared_with. With country=XX the response is {found, country, currencies: [the same record for each legal-tender currency in use there per CLDR]}. Never an exchange rate.",
      "properties": {
        "cash_minor_units": {
          "type": [
            "integer",
            "null"
          ]
        },
        "cash_rounding": {
          "type": [
            "number",
            "null"
          ]
        },
        "code": {
          "type": "string"
        },
        "country": {
          "type": "string"
        },
        "currencies": {
          "items": {
            "properties": {
              "cash_minor_units": {
                "type": [
                  "integer",
                  "null"
                ]
              },
              "cash_rounding": {
                "type": [
                  "number",
                  "null"
                ]
              },
              "code": {
                "type": "string"
              },
              "is_fund": {
                "type": "boolean"
              },
              "minor_units": {
                "type": [
                  "integer",
                  "null"
                ]
              },
              "name": {
                "type": "string"
              },
              "numeric": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "status": {
                "type": "string"
              },
              "territories": {
                "items": {
                  "type": "string"
                },
                "type": "array"
              }
            },
            "required": [
              "code",
              "numeric",
              "name",
              "minor_units",
              "cash_minor_units",
              "cash_rounding",
              "is_fund",
              "status"
            ],
            "type": "object"
          },
          "type": "array"
        },
        "found": {
          "type": "boolean"
        },
        "is_fund": {
          "type": "boolean"
        },
        "minor_units": {
          "type": [
            "integer",
            "null"
          ]
        },
        "name": {
          "type": "string"
        },
        "numeric": {
          "type": [
            "string",
            "null"
          ]
        },
        "numeric_shared_with": {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        "status": {
          "type": "string"
        },
        "territories": {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        "withdrawn": {
          "type": "string"
        }
      },
      "required": [
        "found"
      ],
      "type": "object"
    },
    "meta": {
      "$ref": "#/components/schemas/Meta"
    },
    "ok": {
      "const": true
    },
    "route": {
      "const": "/v1/ref/currency"
    },
    "version": {
      "const": "1.0.0"
    }
  },
  "required": [
    "ok",
    "route",
    "version",
    "data",
    "meta"
  ],
  "type": "object"
}