TariffMonkee
Small, single-purpose web data APIs that AI agents pay for per call in USDC over the x402 protocol (HTTP 402). No accounts, no API keys, no subscriptions.
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": "0x0FAD15c9f4C38f439fd56C4d4e4Bc8fC71c42767",
"amount": "20000",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://tariffmonkee.com/paid/tw-localize-check",
"description": "Taiwan localization check for Traditional Chinese text: flags mainland (PRC) wording in traditional characters that still reads as non-Taiwanese, with the Taiwan-correct replacement, category, severity and reason per flag. Optional fix=true returns corrected text. Uses a curated glossary of 47 terms; a judgment layer on top of simplified-to-traditional conversion, not a substitute for it.",
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"payTo": "EjwKsavtpL4MeboquZgFerQy6voUbKqJv5TyukEH8vPN",
"amount": "20000",
"scheme": "exact",
"network": "solana-mainnet",
"mimeType": "application/json",
"resource": "https://tariffmonkee.com/paid/tw-localize-check",
"description": "Taiwan localization check for Traditional Chinese text: flags mainland (PRC) wording in traditional characters that still reads as non-Taiwanese, with the Taiwan-correct replacement, category, severity and reason per flag. Optional fix=true returns corrected text. Uses a curated glossary of 47 terms; a judgment layer on top of simplified-to-traditional conversion, not a substitute for it.",
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 300
}
],
"x402Version": 1
}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 0.02 USDC on Base to 0x0FAD…42767. The signed payment is good for 5 minutes.
- Paid to
- 0x0FAD…42767
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 20000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- EjwKsa…H8vPN
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0FAD15c9f4C38f439fd56C4d4e4Bc8fC71c42767",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"payTo": "EjwKsavtpL4MeboquZgFerQy6voUbKqJv5TyukEH8vPN",
"amount": "20000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"fix": true,
"text": "請在軟件中打開視頻會議,連接公司網絡後把數據庫備份到硬盤,再用短信通知服務器管理員。打印機和鼠標放在便利店旁的辦公室。"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"flags": [
{
"term": "軟件",
"category": "tech",
"severity": "high",
"positions": [
2
],
"rationale": "Mainland wording for \"software\" even when rendered in traditional characters; Taiwan's standard term is 軟體.",
"occurrences": 1,
"taiwan_term": "軟體",
"context_note": null
},
{
"term": "視頻會議",
"category": "tech",
"severity": "high",
"positions": [
7
],
"rationale": "Mainland wording for \"video conference\"; Taiwan's standard term is 視訊會議.",
"occurrences": 1,
"taiwan_term": "視訊會議",
"context_note": null
},
{
"term": "網絡",
"category": "tech",
"severity": "medium",
"positions": [
16
],
"rationale": "Mainland wording for \"network/internet\" in a computing/technology context; Taiwan's standard tech term is 網路.",
"occurrences": 1,
"taiwan_term": "網路",
"context_note": "網絡 is legitimate Taiwan usage for an abstract non-tech network, e.g. 人際網絡 (social network) or 供應鏈網絡 (supply chain network). Only flag in a computing/internet context."
}
],
"sources": [
"Curated by TariffMonkee from established Taiwan-vs-mainland terminology divergence and general bilingual knowledge of both regions' standard usage.",
"A subset cross-checked against a public Taiwan/mainland vocabulary comparison (yakyacker.com) -- see each flagged term's 'source' provenance is not exposed per-call in v1, but is recorded in the underlying glossary table.",
"NOT yet reconciled term-by-term against Microsoft's published zh-TW/zh-CN style guides -- a disclosed gap, not a completeness claim.",
"Live glossary: ats-usage D1 database, table tw_localize_glossary (47 terms at launch, 2026-09-06)."
],
"disclaimer": "Flags known mainland/Hong Kong wording rendered in Traditional Chinese characters, with a Taiwan-correct replacement and a plain-language reason. This is a curated glossary, not a full linguistic model: it will miss any term not yet catalogued, and it does zero grammar or register analysis beyond th...",
"flag_count": 10,
"verified_on": "2026-09-06",
"terms_checked": 47,
"corrected_text": "請在軟體中打開視訊會議,連接公司網路後把資料庫備份到硬碟,再用簡訊通知伺服器管理員。印表機和滑鼠放在便利商店旁的辦公室。"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"text"
],
"properties": {
"fix": {
"type": "boolean",
"description": "If true, also return a corrected version of the text with flagged terms replaced."
},
"text": {
"type": "string",
"description": "Traditional Chinese text to check for mainland/Hong Kong wording."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"flags",
"flag_count",
"terms_checked",
"disclaimer",
"sources",
"verified_on"
],
"properties": {
"flags": {
"type": "array"
},
"sources": {
"type": "array",
"items": {
"type": "string"
}
},
"disclaimer": {
"type": "string"
},
"flag_count": {
"type": "number"
},
"verified_on": {
"type": "string"
},
"terms_checked": {
"type": "number"
},
"corrected_text": {}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"s": [
"cdp_sdk_server"
]
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
},
"eip2612GasSponsoring": {},
"erc20ApprovalGasSponsoring": {}
}Provenance
- Seen in the source catalog
- 2026-10-18 14:27Z
- Last indexed by Roundhouse
- 2026-10-26 20:00Z
- Last enriched (probe, favicon, geo)
- 2026-10-18 08:15Z
- x402 version
- 2
- Max timeout
- 300s
- 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. 12 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 TariffMonkee 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=TariffMonkee' 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://tariffmonkee.com/paid/tw-localize-check, 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.