Locale File Diff
Compare two versions of a base locale and report which translations went stale. A base string edited without its translations being edited leaves every locale confidently wrong, nothing in the translation file marks it, and the diff is the only place it is visible. Also reports a removed key, where anything still referencing it shows the key in the interface; translations still carrying a removed key; and, per locale, how many of the new keys are outstanding.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
"amount": "170000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://api.zfinia.com/x402/v1/locale-file-diff",
"tags": [
"internationalisation",
"change detection",
"translation freshness",
"release gate",
"developer tooling"
],
"mimeType": "application/json",
"description": "Compare two versions of a base locale and report which translations went stale. A base string edited without its translations being edited leaves every locale confidently wrong, nothing in the translation file marks it, and the diff is the only place it is visible. Also reports a removed key, where anything still referencing it shows the key in the interface; translations still carrying a removed key; and, per locale, how many of the new keys are outstanding.",
"serviceName": "Locale File Diff"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"after": {
"app": {
"title": "Dashboard",
"greeting": "Welcome back, {name}"
},
"errors": {
"retry": "Try again",
"generic": "Something went wrong"
},
"checkout": {
"submit": "Pay now"
}
},
"before": {
"app": {
"title": "Dashboard",
"greeting": "Hello, {name}"
},
"banner": {
"promo": "Half price this week"
},
"errors": {
"retry": "Try again",
"generic": "Something went wrong"
}
},
"translations": [
{
"locale": "de",
"messages": {
"app": {
"title": "Übersicht",
"greeting": "Hallo, {name}"
},
"banner": {
"promo": "Diese Woche halber Preis"
},
"errors": {
"retry": "Erneut",
"generic": "Fehler"
}
}
}
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"limits": {
"maxKeys": 50000,
"maxLocales": 60,
"maxFindings": 500,
"maxFileBytes": 2097152,
"maxValueLength": 32768
},
"passed": false,
"complete": false,
"findings": [
{
"key": "banner.promo",
"code": "KEY_REMOVED",
"detail": "banner.promo is gone from the base. Every translation of it is now dead weight, and anything still referencing it shows the key."
},
{
"key": "app.greeting",
"code": "BASE_TEXT_CHANGED",
"detail": "app.greeting changed in the base. Every translation of it is now a translation of the previous text."
},
{
"key": "app.greeting",
"code": "TRANSLATION_NOW_STALE",
"detail": "de still has the previous translation of app.greeting, whose base text changed. Nothing in the file marks it, so it reads as translated and says the old thing.",
"locale": "de"
}
],
"unchanged": false,
"added_keys": [
"checkout.submit"
],
"request_id": "example-request",
"service_id": "locale_file_diff",
"assumptions": [
"A changed base string is the central finding: every translation of it is now a translation of the previous text, nothing in the translation file marks that, and the diff is the only place it is visibl...",
"An added key is noted rather than found, because it breaks nothing that already worked, while the translations missing it are reported per locale as outstanding work.",
"A removed key is a finding rather than a note, because anything still referencing it shows the key in the interface."
],
"limitations": [
"The two base versions and the translations supplied. Whether a base change was significant enough to need retranslating is a judgement this does not make.",
"unchanged is true only when the two base versions were identical and nothing was left undetermined."
],
"observed_at": "2026-10-02T00:00:00.000Z",
"changed_keys": [
"app.greeting"
],
"not_examined": [
"KEY_ADDED: checkout.submit is new, so every locale is missing it until it is translated.",
"TRANSLATION_ORPHANED: de still has banner.promo, which the base no longer defines."
],
"removed_keys": [
"banner.promo"
],
"finding_count": 4,
"added_key_count": 1,
"after_key_count": 5,
"service_version": "1.0.0",
"before_key_count": 5,
"findings_by_code": {
"KEY_REMOVED": 1,
"BASE_TEXT_CHANGED": 1,
"TRANSLATION_NOW_STALE": 1,
"NEW_KEYS_NOT_TRANSLATED": 1
},
"changed_key_count": 1,
"removed_key_count": 1,
"translation_locale_count": 1
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"before",
"after"
],
"properties": {
"after": {
"type": [
"object",
"string"
]
},
"before": {
"type": [
"object",
"string"
]
},
"translations": {
"type": "array",
"items": {
"type": "object",
"required": [
"locale",
"messages"
],
"properties": {
"locale": {
"type": "string",
"maxLength": 35
},
"messages": {
"type": [
"object",
"string"
]
}
},
"additionalProperties": false
},
"maxItems": 60,
"minItems": 1
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"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.
Pay 0.17 USDC on Base to 0x25e8…a9608. The signed payment is good for 1 minute.
- Paid to
- 0x25e8…a9608
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 170000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
"amount": "170000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"after": {
"app": {
"title": "Dashboard",
"greeting": "Welcome back, {name}"
},
"errors": {
"retry": "Try again",
"generic": "Something went wrong"
},
"checkout": {
"submit": "Pay now"
}
},
"before": {
"app": {
"title": "Dashboard",
"greeting": "Hello, {name}"
},
"banner": {
"promo": "Half price this week"
},
"errors": {
"retry": "Try again",
"generic": "Something went wrong"
}
},
"translations": [
{
"locale": "de",
"messages": {
"app": {
"title": "Übersicht",
"greeting": "Hallo, {name}"
},
"banner": {
"promo": "Diese Woche halber Preis"
},
"errors": {
"retry": "Erneut",
"generic": "Fehler"
}
}
}
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"limits": {
"maxKeys": 50000,
"maxLocales": 60,
"maxFindings": 500,
"maxFileBytes": 2097152,
"maxValueLength": 32768
},
"passed": false,
"complete": false,
"findings": [
{
"key": "banner.promo",
"code": "KEY_REMOVED",
"detail": "banner.promo is gone from the base. Every translation of it is now dead weight, and anything still referencing it shows the key."
},
{
"key": "app.greeting",
"code": "BASE_TEXT_CHANGED",
"detail": "app.greeting changed in the base. Every translation of it is now a translation of the previous text."
},
{
"key": "app.greeting",
"code": "TRANSLATION_NOW_STALE",
"detail": "de still has the previous translation of app.greeting, whose base text changed. Nothing in the file marks it, so it reads as translated and says the old thing.",
"locale": "de"
}
],
"unchanged": false,
"added_keys": [
"checkout.submit"
],
"request_id": "example-request",
"service_id": "locale_file_diff",
"assumptions": [
"A changed base string is the central finding: every translation of it is now a translation of the previous text, nothing in the translation file marks that, and the diff is the only place it is visibl...",
"An added key is noted rather than found, because it breaks nothing that already worked, while the translations missing it are reported per locale as outstanding work.",
"A removed key is a finding rather than a note, because anything still referencing it shows the key in the interface."
],
"limitations": [
"The two base versions and the translations supplied. Whether a base change was significant enough to need retranslating is a judgement this does not make.",
"unchanged is true only when the two base versions were identical and nothing was left undetermined."
],
"observed_at": "2026-10-02T00:00:00.000Z",
"changed_keys": [
"app.greeting"
],
"not_examined": [
"KEY_ADDED: checkout.submit is new, so every locale is missing it until it is translated.",
"TRANSLATION_ORPHANED: de still has banner.promo, which the base no longer defines."
],
"removed_keys": [
"banner.promo"
],
"finding_count": 4,
"added_key_count": 1,
"after_key_count": 5,
"service_version": "1.0.0",
"before_key_count": 5,
"findings_by_code": {
"KEY_REMOVED": 1,
"BASE_TEXT_CHANGED": 1,
"TRANSLATION_NOW_STALE": 1,
"NEW_KEYS_NOT_TRANSLATED": 1
},
"changed_key_count": 1,
"removed_key_count": 1,
"translation_locale_count": 1
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"before",
"after"
],
"properties": {
"after": {
"type": [
"object",
"string"
]
},
"before": {
"type": [
"object",
"string"
]
},
"translations": {
"type": "array",
"items": {
"type": "object",
"required": [
"locale",
"messages"
],
"properties": {
"locale": {
"type": "string",
"maxLength": 35
},
"messages": {
"type": [
"object",
"string"
]
}
},
"additionalProperties": false
},
"maxItems": 60,
"minItems": 1
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-04 08:47Z
- Last indexed by Roundhouse
- 2026-10-05 06:10Z
- Last enriched (probe, favicon, geo)
- 2026-10-05 00:45Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 402
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. 3 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Locale File Diff 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=Locale%20File%20Diff' 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.zfinia.com/x402/v1/locale-file-diff, 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.