ToolAssay

Compare placeholder structure across locales

Compare placeholder structure across locales. A placeholder missing from a translation renders blank in some frameworks and throws in others, so the same file is a cosmetic bug in one stack and a crash in the next. ICU braces, printf conversions and mustache pairs are all recognised. Also reports a placeholder no base string supplies, a positional count that differs, a syntax that differs between locales, and unindexed printf placeholders reordered by a translation, which the renderer ignores.

Not tested: has real-world effectsour last check, 2026-10-04
0 of 0checks answered this week
n/amedian answer time
$0.22listed price per call
n/aprice it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

POST https://api.zfinia.com/x402/v1/locale-placeholder-contract-audit

CategoryCode and developer
Provider hostapi.zfinia.com
Networkseip155:8453
Payment schemesexact
Self-reported calls, 30 days1 from 1 payers (the provider's figure, not ours)

Our checks, last 30 days

We never call tools that send, buy, move money or file anything, not even without paying.

Example input (from the provider)

{
  "body": {
    "locales": [
      {
        "base": true,
        "locale": "en",
        "messages": {
          "app": {
            "greeting": "Hello, {name}",
            "title": "Dashboard"
          },
          "cart": {
            "item_one": "You have {count} item in your cart",
            "item_other": "You have {count} items in your cart"
          },
          "errors": {
            "generic": "Something went wrong",
            "retry": "Try again"
          },
          "invoice": {
            "total": "Total: {amount, number, ::currency/USD}"
          },
          "legal": {
            "terms": "By continuing you accept the <a href=\"/terms\">terms</a>"
          },
          "shared": {
            "cancel": "Cancel",
            "dismiss": "Cancel"
          }
        }
      },
      {
        "locale": "de",
        "messages": {
          "app": {
            "greeting": "Hallo, {vorname}",
            "title": "\u00dcbersicht"
          },
          "cart": {
            "item_one": "Sie haben {count} Artikel im Warenkorb",
            "item_other": "Sie haben {count} Artikel im Warenkorb"
          },
          "errors": {
            "generic": "Etwas ist schiefgelaufen",
            "retry": "Erneut versuchen"
          },
          "invoice": {
            "total": "Gesamt"
          },
          "legal": {
            "terms": "Mit dem Fortfahren akzeptieren Sie die <a href=\"/terms\">Bedingungen</a>"
          },
          "shared": {
            "cancel": "Abbrechen",
            "dismiss": "Verwerfen"
          }
        }
      },
      {
        "locale": "fr",
        "messages": {
          "app": {
            "greeting": "Bonjour, {{name}}",
            "title": "Tableau de bord"
          },
          "cart": {
            "item_one": "Vous avez {count} article",
            "item_other": "Vous avez {count} articles"
          },
          "errors": {
            "generic": "Une erreur est survenue",
            "retry": "R\u00e9essayer"
          },
          "invoice": {
            "total": "Total : {amount}"
          },
          "legal": {
            "terms": "En continuant vous acceptez les conditions"
          },
          "shared": {
            "cancel": "Annuler",
            "dismiss": "Ignorer"
          }
        }
      }
    ]
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "locales": {
              "items": {
                "additionalProperties": false,
                "properties": {
                  "base": {
                    "type": "boolean"
                  },
                  "locale": {
                    "maxLength": 35,
                    "type": "string"
                  },
                  "messages": {
                    "type": [
                      "object",
                      "string"
                    ]
                  }
                },
                "required": [
                  "locale",
                  "messages"
                ],
                "type": "object"
              },
              "maxItems": 60,
              "minItems": 2,
              "type": "array"
            }
          },
          "required": [
            "locales"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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