api.duoleads.com

https://api.duoleads.com/v1/id/iban-build

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

Construct an IBAN from a country code and the domestic account parts, computing the ISO 7064 mod-97-10 check digits. Takes either a single BBAN string or named parts (bank code, branch code, account number); digit fields are left-padded with zeros to the country's registered widths. Returns the IBAN in electronic and print formats with its bank, branch and account parts. Covers the 89 SWIFT registry countries. Named parts work only where they span the whole BBAN; otherwise pass the BBAN.

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 10ms · p95 330ms
0ms 200ms 400ms 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% 2 158ms
9/30/2026, 12:00:00 AM 100% 12 8ms
10/1/2026, 12:00:00 AM 100% 12 8ms
10/2/2026, 12:00:00 AM 100% 12 8ms
10/3/2026, 12:00:00 AM 100% 12 268ms
10/4/2026, 12:00:00 AM 100% 10 299ms
10/5/2026, 12:00:00 AM 100% 6 322ms
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/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": "iban (electronic format, no spaces), iban_print (grouped in fours), country, check_digits, bban, parts ({bank, branch, account} as parsed by the registry layout, each string|null: null where the country's registry layout defines no such field, e.g. branch for most countries and all three for HN), length, valid (always true on success: a built IBAN is valid by construction). Named parts are accepted only for countries where bank, branch and account together cover the whole BBAN (56 of 89); for the others (e.g. FR, ES, IT, BE with national check digits) pass bban. Digit fields shorter than their width are left-padded with zeros; letter fields must be exact.",
      "properties": {
        "bban": {
          "type": "string"
        },
        "check_digits": {
          "type": "string"
        },
        "country": {
          "type": "string"
        },
        "iban": {
          "type": "string"
        },
        "iban_print": {
          "type": "string"
        },
        "length": {
          "type": "integer"
        },
        "parts": {
          "properties": {
            "account": {
              "type": [
                "string",
                "null"
              ]
            },
            "bank": {
              "type": [
                "string",
                "null"
              ]
            },
            "branch": {
              "type": [
                "string",
                "null"
              ]
            }
          },
          "required": [
            "bank",
            "branch",
            "account"
          ],
          "type": "object"
        },
        "valid": {
          "type": "boolean"
        }
      },
      "required": [
        "iban",
        "iban_print",
        "country",
        "check_digits",
        "bban",
        "parts",
        "length",
        "valid"
      ],
      "type": "object"
    },
    "meta": {
      "$ref": "#/components/schemas/Meta"
    },
    "ok": {
      "const": true
    },
    "route": {
      "const": "/v1/id/iban-build"
    },
    "version": {
      "const": "1.0.0"
    }
  },
  "required": [
    "ok",
    "route",
    "version",
    "data",
    "meta"
  ],
  "type": "object"
}