tariffmonkee.com

Name: tariffmonkee.com
Price: 0.06 USDC
Availability: InStock

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.

InfraLiveeip155:8453Exactvia cdp

https://tariffmonkee.com/paid/tax-residency-check

Calls · 30d

1→ 0%

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 22 snapshots so far.

$3.72

Verified settled volume

72 settlements proven x402 by their on-chain EIP-3009 marker.

$0.060

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-09-05 02:17Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x0FAD15c9f4C38f439fd56C4d4e4Bc8fC71c42767

The 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": "60000",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://tariffmonkee.com/paid/tax-residency-check",
      "description": "Taiwan tax residency GUIDANCE, not tax advice, from arrival/departure dates and income. Determines resident (183+ days/year) vs non-resident using the official start-day-excluded, end-day-included counting rule; non-residents get the 6%/18% withholding threshold (1.5x basic wage); residents get an estimated tax owed using that year's brackets and deductions. DTA treaty rates and Alternative Minimum Tax are flagged, not computed. Only Taiwan's National Taxation Bureau determines final liability.",
      "maxAmountRequired": "60000",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
      },
      "payTo": "EjwKsavtpL4MeboquZgFerQy6voUbKqJv5TyukEH8vPN",
      "amount": "60000",
      "scheme": "exact",
      "network": "solana-mainnet",
      "mimeType": "application/json",
      "resource": "https://tariffmonkee.com/paid/tax-residency-check",
      "description": "Taiwan tax residency GUIDANCE, not tax advice, from arrival/departure dates and income. Determines resident (183+ days/year) vs non-resident using the official start-day-excluded, end-day-included counting rule; non-residents get the 6%/18% withholding threshold (1.5x basic wage); residents get an estimated tax owed using that year's brackets and deductions. DTA treaty rates and Alternative Minimum Tax are flagged, not computed. Only Taiwan's National Taxation Bureau determines final liability.",
      "maxAmountRequired": "60000",
      "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.

0.06USDC≈ $0.06 USD

on Base · exact scheme

Pay 0.06 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: 60000 smallest units

60000units

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": "60000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
    },
    "payTo": "EjwKsavtpL4MeboquZgFerQy6voUbKqJv5TyukEH8vPN",
    "amount": "60000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "body": {
      "age": "45",
      "stays": "[{\"arrival\":\"2026-03-01\",\"departure\":\"2026-09-01\"}]",
      "married": "false",
      "dependents": "0",
      "calendar_year": "2026",
      "gross_income_twd": "1200000",
      "tax_withheld_twd": "50000",
      "employer_location": "offshore",
      "monthly_salary_twd": "60000",
      "has_offshore_income": "false"
    },
    "info": {
      "input": {
        "body": {},
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      }
    },
    "schema": {
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object"
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        }
      }
    },
    "bodySchema": {
      "age": {
        "type": "number",
        "required": false,
        "description": "Filer's age, for the 70+ exemption tier."
      },
      "stays": {
        "type": "object",
        "required": true,
        "description": "Array of { arrival: 'YYYY-MM-DD', departure?: 'YYYY-MM-DD' }. Omit departure for a stay still ongoing."
      },
      "married": {
        "type": "boolean",
        "required": false,
        "description": "Married filing status, affects the standard deduction."
      },
      "dependents": {
        "type": "number",
        "required": false,
        "description": "Count of dependents claimed at the general exemption rate."
      },
      "calendar_year": {
        "type": "number",
        "required": true,
        "description": "Calendar year to evaluate, e.g. 2026. Must have a verified row in the tax_year_params table."
      },
      "gross_income_twd": {
        "type": "number",
        "required": false,
        "description": "Total gross income for the year in TWD."
      },
      "tax_withheld_twd": {
        "type": "number",
        "required": false,
        "description": "Tax already withheld during the year, for a shortfall/refund estimate."
      },
      "employer_location": {
        "type": "string",
        "required": false,
        "description": "'taiwan' or 'offshore'. Affects the 90-day anti-avoidance rule for non-residents."
      },
      "monthly_salary_twd": {
        "type": "number",
        "required": false,
        "description": "Full-month salary in TWD, for the non-resident 6%/18% withholding check."
      },
      "has_offshore_income": {
        "type": "boolean",
        "required": false,
        "description": "Whether material income was earned outside Taiwan. Only used to flag AMT as possibly relevant -- not computed."
      }
    },
    "outputSchema": {
      "description": "JSON: { calendar_year, days_present, residency_status, status_reasoning, offshore_90_day_flag, withholding, resident_tax_estimate, filing_required, filing_note, out_of_scope, disclaimer, sources, verified_on }"
    },
    "routeTemplate": "/paid/tax-residency-check"
  },
  "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: 2026-09-05 02:17Z
Last indexed by Roundhouse: 2026-09-26 22:00Z
Last enriched (probe, favicon, geo): 2026-09-13 08:45Z
x402 version: 2
Max timeout: 300s
Liveness probe: HTTP 402

Report

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. 22 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service tariffmonkee.com 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.com'
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/tax-residency-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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.