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.
TradingLiveeip155:8453Exactvia cdp
TaiwanPropertyReal-estateDue-diligence
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 14 snapshots so far.
$8.74
Verified settled volume
190 settlements proven x402 by their on-chain EIP-3009 marker.
$0.070
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-10-18 14:27Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x0FAD15c9f4C38f439fd56C4d4e4Bc8fC71c42767The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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": "70000",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://tariffmonkee.com/paid/tw-property-check",
"description": "Taiwan property purchase due diligence from an address: parses county and district, compares against recent sale-price comparables (實價登錄) in that district, reports construction-year context against the Building Seismic Design Code history, and flags rooftop-addition mentions in supplied listing text. Per-address liquefaction risk is not included; the official map link is returned. Guidance, not a valuation.",
"maxAmountRequired": "70000",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"payTo": "EjwKsavtpL4MeboquZgFerQy6voUbKqJv5TyukEH8vPN",
"amount": "70000",
"scheme": "exact",
"network": "solana-mainnet",
"mimeType": "application/json",
"resource": "https://tariffmonkee.com/paid/tw-property-check",
"description": "Taiwan property purchase due diligence from an address: parses county and district, compares against recent sale-price comparables (實價登錄) in that district, reports construction-year context against the Building Seismic Design Code history, and flags rooftop-addition mentions in supplied listing text. Per-address liquefaction risk is not included; the official map link is returned. Guidance, not a valuation.",
"maxAmountRequired": "70000",
"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.
0.07USDC≈ $0.07 USD
on Base · exact scheme
Pay 0.07 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
- 70000 smallest units
70000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme
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": "70000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"payTo": "EjwKsavtpL4MeboquZgFerQy6voUbKqJv5TyukEH8vPN",
"amount": "70000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"address": "臺中市西屯區臺灣大道三段",
"built_year": 1996,
"unit_area_sqm": 120,
"asking_price_twd": 15000000
}
},
"output": {
"type": "json",
"example": {
"red_flags": [],
"disclaimer": "This is guidance based on publicly verified data and known limitations, not a valuation and not legal advice, and does not determine an actual case. Price comparables come from a single 實價登錄 release batch ingested 2026-09-05, a sample and not full market history. Only a licensed appraiser, the court...",
"comparables": {
"note": "50 comparable sale(s) found for 臺中市西屯區, most recent first (transaction dates 2026-06-10 to 2026-08-03). The data is a single 實價登錄 release batch ingested 2026-09-05, not full market history.",
"count": 50,
"sample": [
{
"address": "臺中市西屯區櫻城二街２０號三樓之８",
"building_type": "華廈(10層含以下有電梯)",
"total_price_twd": 2000000,
"building_area_sqm": 20.43,
"unit_price_per_sqm": 97895,
"transaction_date_roc": "1150803"
},
{
"address": "臺中市西屯區工業區一路５８巷１１弄６號十一樓之８",
"building_type": "住宅大樓(11層含以上有電梯)",
"total_price_twd": 2480000,
"building_area_sqm": 30.43,
"unit_price_per_sqm": 81499,
"transaction_date_roc": "1150731"
},
{
"address": "臺中市西屯區福上巷２１４號三樓之６",
"building_type": "華廈(10層含以下有電梯)",
"total_price_twd": 1650000,
"building_area_sqm": 21.36,
"unit_price_per_sqm": 77247,
"transaction_date_roc": "1150728"
}
],
"available": true,
"asking_price_per_sqm": 125000,
"asking_vs_median_pct": 28.5,
"median_unit_price_per_sqm": 97261
},
"liquefaction": {
"note": "Not available per-address in this version -- placing a specific address inside a specific liquefaction zone requires real coordinates (geocoding), which this endpoint deliberately does not do (see code comments for why). Check the official interactive map directly for this address.",
"map_url": "https://www.geologycloud.tw/eq/liquid/map",
"available": false
},
"parsed_location": {
"county": "臺中市",
"district": "西屯區",
"matched_from": "臺中市西屯區"
},
"seismic_code_context": {
"note": "Supplied construction year 1996 falls before the widely-used 1999 (921 earthquake) proxy cutoff. Taiwan's Building Seismic Design Code (建築物耐震設計規範) has been revised multiple times, not just once in 1999 -- a pre-921 version, a post-921 revision (raised requirements after the Chi-Chi earthquake reclas...",
"built_year": 1996
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"description": "Full Taiwan address including county/city and district, e.g. 臺中市西區公益路100號."
},
"built_year": {
"type": "number",
"description": "Construction year (Gregorian calendar), for the seismic-code context note."
},
"listing_text": {
"type": "string",
"description": "Pasted listing text, checked for rooftop-addition/unregistered-structure mentions."
},
"unit_area_sqm": {
"type": "number",
"description": "Unit floor area in square meters, used with asking_price_twd to compute a per-sqm comparison."
},
"asking_price_twd": {
"type": "number",
"description": "Asking or listed price in TWD, for comparison against district comparables."
},
"building_type_filter": {
"type": "string",
"description": "Restrict comparables to a building type substring, e.g. 住宅大樓, 公寓, 透天厝, 華廈."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"parsed_location",
"comparables",
"seismic_code_context",
"liquefaction",
"red_flags",
"disclaimer"
],
"properties": {
"red_flags": {
"type": "array"
},
"disclaimer": {
"type": "string"
},
"comparables": {
"type": "object",
"required": [
"available",
"count",
"sample",
"note"
],
"properties": {
"note": {
"type": "string"
},
"count": {
"type": "number"
},
"sample": {
"type": "array"
},
"available": {
"type": "boolean"
},
"asking_price_per_sqm": {},
"asking_vs_median_pct": {},
"median_unit_price_per_sqm": {}
}
},
"liquefaction": {
"type": "object",
"required": [
"available",
"note",
"map_url"
],
"properties": {
"note": {
"type": "string"
},
"map_url": {
"type": "string"
},
"available": {
"type": "boolean"
}
}
},
"parsed_location": {
"type": "object",
"required": [
"matched_from"
],
"properties": {
"county": {},
"district": {},
"matched_from": {
"type": "string"
}
}
},
"seismic_code_context": {
"type": "object",
"required": [
"note"
],
"properties": {
"note": {
"type": "string"
},
"built_year": {}
}
}
}
}
}
}
}
}
},
"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
- 2026-10-27 15:40Z
- 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. 14 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-property-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.