com.mart402/jp-statutory
REMOTE · MART402.COM
Japan statutory calculations: net pay, social insurance, tax walls, holidays. Cited sources, x402.
Available components
Last scanned (22 hours ago)
Scores higher than 62% of remote servers
Reachable. Last reached 23 Oct 2026.
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability61
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 3760 tokens (~235/item across 16 items; 16 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management10
- Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 16 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 17 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 23 Oct 26 0
- Tool “jp_bonus_net” rewrote its description, which is the text the model reads security
- Tool “jp_dependent_threshold” rewrote its description, which is the text the model reads security
- Tool “jp_payroll_net” rewrote its description, which is the text the model reads security
- Tool “jp_payroll_suite” rewrote its description, which is the text the model reads security
- Tool “jp_payslip_audit” rewrote its description, which is the text the model reads security
- Tool “jp_social_insurance” rewrote its description, which is the text the model reads security
- 22 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 21 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 20 Oct 26 71
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 23 Oct 2026 · Probed https://mart402.com/mcp/jp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mart402.com | CN=WE1,O=Google Trust Services,C=US | 16 Sept 2026 | 15 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 68a4eaa5548863713c827bdea0b8bf9 |
| SANs: mart402.com, *.mart402.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mart402.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| mart402.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| x-content-type-options | nosniff |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mart402.com/mcp/jp | Verified | 200 | |
| http (plaintext) | http://mart402.com/mcp/jp | HTTPS enforced | 308 | https://mart402.com/mcp/jp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
get_catalog Mart402 catalog (products, prices, policies) ~29
Mart402 product catalog: all products, prices, payment config, error codes, rate limits. Free.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
get_receipt Re-fetch a paid result by receipt ~46
Re-fetch a previously paid result for free by receipt id (every paid response carries receipt_id).
| Name | Type | Req | Description |
|---|---|---|---|
| receipt_id | string | yes | receipt_id from a paid response (rcpt_...) |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
get_sample Mart402 sample output ~270
Free recorded sample response for a paid product (from real production runs, marked sample:true) - see the exact response shape before paying anything. Available: document-pipeline, enrich, extract, jp-bonus-net, jp-business-days, jp-company, jp-consumption-tax, jp-crypto-tax, jp-dependent-threshold, jp-mortgage, jp-overtime-wage, jp-payroll-net, jp-payroll-suite, jp-payslip-audit, jp-retirement-tax, jp-social-insurance, meal-vision, ocr, parse, pdf-info, pdf-merge, pdf-pages, portrait-analysis, report-pack, structured, style-profile, style-report, verify.
| Name | Type | Req | Description |
|---|---|---|---|
| product | string | yes | One of: document-pipeline, enrich, extract, jp-bonus-net, jp-business-days, jp-company, jp-consumption-tax, jp-crypto-tax, jp-dependent-threshold, jp-mortgage, jp-overtime-wage, jp-payroll-net, jp-pa… |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_bonus_net Jp Bonus Net ~285
Bonus net pay: social insurance and withholding tax (official rate table, based on previous month salary). $0.01/call. Deterministic, cites primary sources; errors and unverified rules are never billed. Choose this for ONE bonus payment: its social insurance and withholding tax (the tax rate depends on the previous month's salary after social insurance). For annual totals use jp_payroll_net.
| Name | Type | Req | Description |
|---|---|---|---|
| age | integer | – | Age in years (selects care-insurance and other age-gated rules) |
| as_of | string | – | Calculation reference date YYYY-MM-DD (default today); selects the rules version |
| bonus_yen | integer | yes | Bonus amount in yen |
| dependents | integer | – | Dependents object (see /catalog input spec) |
| prefecture | string | yes | Prefecture (romaji or Japanese), e.g. 'Tokyo' |
| previous_month_after_si_yen | integer | – | Previous month's pay after social insurance (withholding table lookup) |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| ytd_bonus_yen | integer | – | Bonus paid so far in the fiscal year (health-insurance annual cap check) |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_business_days Jp Business Days ~323
Japanese holidays, business-day arithmetic, statutory filing deadlines with holiday shift, wareki conversion. $0.003/call. Deterministic, cites primary sources; errors and unverified rules are never billed. Required by mode (default add): add -> from, days; between -> from, to; holidays -> year; deadline -> kind, base_date; wareki -> date.
| Name | Type | Req | Description |
|---|---|---|---|
| base_date | string | – | Base date YYYY-MM-DD for deadline calculation |
| date | string | – | Date YYYY-MM-DD |
| days | integer | – | Number of business days to add |
| from | string | – | Start date YYYY-MM-DD |
| kind | string | – | One of: withholding_tax_monthly, social_insurance_monthly, corporate_tax, consumption_tax_corporate, income_tax_final, consumption_tax_individual, depreciable_assets, legal_records. Statutory deadlin… |
| mode | string | – | Required by mode (default add): add -> from, days; between -> from, to; holidays -> year; deadline -> kind, base_date; wareki -> date. |
| saturday_off | boolean | – | Treat Saturdays as non-business days (default true) |
| to | string | – | End date YYYY-MM-DD |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| year | integer | – | Calendar year |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_company_profile Jp Company Profile ~147
Japanese company site to a standard profile JSON (name, address, representative, capital, contact). $0.03/site. Choose this when you have the URL of a Japanese company's OWN site and want its standard profile fields read from the page; for name/domain lookups use enrich_company (country_hint: jp).
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | Absolute http(s) URL of the input (web page or PDF, per tool) |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_consumption_tax Jp Consumption Tax ~350
Consumption tax: per-rate invoice rounding, qualified-invoice validation, simplified taxation, 20% special. $0.01/call. Deterministic, cites primary sources; errors and unverified rules are never billed. Required by mode (default invoice_totals): invoice_totals -> lines; validate_invoice -> document; simplified -> taxable_sales_excl_yen, category; two_percent -> taxable_sales_excl_yen, taxable_period_start, taxable_period_end.
| Name | Type | Req | Description |
|---|---|---|---|
| as_of | string | – | Calculation reference date YYYY-MM-DD (default today); selects the rules version |
| category | string | – | Simplified-taxation business class 1-6 |
| document | object | – | Qualified-invoice fields to validate (registration_number etc.) |
| lines | array | – | Invoice lines [{amount_yen, qty, rate_key: standard|reduced}] |
| mode | string | – | Required by mode (default invoice_totals): invoice_totals -> lines; validate_invoice -> document; simplified -> taxable_sales_excl_yen, category; two_percent -> taxable_sales_excl_yen, taxable_period… |
| taxable_period_end | string | – | Taxable period last day YYYY-MM-DD (two_percent) |
| taxable_period_start | string | – | Taxable period first day YYYY-MM-DD (two_percent) |
| taxable_sales_excl_yen | integer | – | Taxable sales excluding tax, in yen |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_crypto_tax Jp Crypto Tax ~244
Japan crypto-asset tax: realized income under the NTA total-average or moving-average method (sell/spend/exchange as disposals, fees deductible), verified against the official NTA FAQ examples. $0.05/call. Deterministic, cites primary sources; errors and unverified rules are never billed.
| Name | Type | Req | Description |
|---|---|---|---|
| as_of | string | – | Calculation reference date YYYY-MM-DD (default today); selects the rules version |
| method | string | – | One of: total_average, moving_average. Cost method: total_average or moving_average |
| opening | array | – | Carried-over holdings [{asset, qty, cost_jpy}] |
| other_taxable_income_yen | integer | – | Other taxable income in yen (returns incremental income tax as reference) |
| transactions | array | yes | Crypto transactions list (max 300) - see /catalog input spec |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| year | integer | – | Calendar year |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_dependent_threshold Jp Dependent Threshold ~209
Income-wall analysis: tax, social insurance (1.06M/1.30M), spousal and student-dependent walls. $0.02/call. Deterministic, cites primary sources; errors and unverified rules are never billed. Choose this for 'how much can be earned before ...' questions: it locates the income walls (tax, social insurance, spousal, student dependent) for an annual income. It does not compute take-home pay (use jp_payroll_net).
| Name | Type | Req | Description |
|---|---|---|---|
| annual_income_yen | integer | yes | Expected annual income in yen |
| as_of | string | – | Calculation reference date YYYY-MM-DD (default today); selects the rules version |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| year | integer | – | Calendar year |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_mortgage Jp Mortgage ~198
Mortgage schedules (level payment/principal), total interest, prepayment effect. $0.005/call. Deterministic, cites primary sources; errors and unverified rules are never billed.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_rate | number | yes | Annual interest rate as a decimal, e.g. 0.01 |
| method | string | – | One of: level_payment, level_principal. Cost method: total_average or moving_average |
| months | integer | yes | Loan term in months |
| prepayment | object | – | Optional prepayment {at_month, amount_yen, mode: reduce_term|reduce_payment} |
| principal_yen | integer | yes | Loan principal in yen |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_overtime_wage Jp Overtime Wage ~233
Overtime premium pay (Labor Standards Act Art.37, official rounding notice) and Article-36 limit check. $0.015/call. Deterministic, cites primary sources; errors and unverified rules are never billed. Required by mode (default pay): pay -> monthly_salary_yen, monthly_scheduled_hours, hours; check36 -> monthly_overtime_hours.
| Name | Type | Req | Description |
|---|---|---|---|
| hours | object | – | Hours worked |
| mode | string | – | Required by mode (default pay): pay -> monthly_salary_yen, monthly_scheduled_hours, hours; check36 -> monthly_overtime_hours. |
| monthly_overtime_hours | array | – | List of monthly overtime hours (36-agreement check) |
| monthly_salary_yen | integer | – | Monthly base salary in yen |
| monthly_scheduled_hours | number | – | Scheduled working hours per month |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_payroll_net Jp Payroll Net ~292
Annual gross salary to net take-home (social insurance + income tax + resident tax). Exact NTA Beppyo-5 table. $0.02/call. Deterministic, cites primary sources; errors and unverified rules are never billed. Choose this for a whole YEAR: annual gross salary to annual take-home after social insurance, income tax and resident tax. For one bonus use jp_bonus_net; for one month's premiums only use jp_social_insurance; to check an actual payslip use jp_payslip_audit.
| Name | Type | Req | Description |
|---|---|---|---|
| age | integer | – | Age in years (selects care-insurance and other age-gated rules) |
| annual_bonus_yen | integer | – | Annual bonus total in yen |
| annual_gross_yen | integer | yes | Annual gross salary in yen |
| as_of | string | – | Calculation reference date YYYY-MM-DD (default today); selects the rules version |
| dependents | object | – | Dependents object (see /catalog input spec) |
| prefecture | string | yes | Prefecture (romaji or Japanese), e.g. 'Tokyo' |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| year | integer | – | Calendar year |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_payroll_suite Jp Payroll Suite ~249
Japan payroll suite: net salary + social insurance + income walls (+bonus) in one call. Flat $0.05. Choose this when you want take-home pay, social insurance and the income walls (and the bonus, if given) together from one annual figure in one call; if you only need the take-home amount, jp_payroll_net is cheaper.
| Name | Type | Req | Description |
|---|---|---|---|
| age | integer | – | Age in years (selects care-insurance and other age-gated rules) |
| annual_bonus_yen | integer | – | Annual bonus total in yen |
| annual_gross_yen | integer | yes | Annual gross salary in yen |
| dependents | object | – | Dependents object (see /catalog input spec) |
| prefecture | string | yes | Prefecture (romaji or Japanese), e.g. 'Tokyo' |
| previous_month_after_si_yen | integer | – | Previous month's pay after social insurance (withholding table lookup) |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_payslip_audit Jp Payslip Audit ~274
Audit a Japanese payslip: recompute statutory premiums and withholding tax from official tables and diff against the actual amounts, with per-item verdicts (match/explainable/mismatch). $0.02/call. Deterministic, cites primary sources; errors and unverified rules are never billed. Choose this when you HAVE an actual payslip and want each deduction checked against the official tables (match/explainable/mismatch); to compute expected amounts from a salary alone use jp_payroll_net or jp_social_insurance.
| Name | Type | Req | Description |
|---|---|---|---|
| age | integer | – | Age in years (selects care-insurance and other age-gated rules) |
| as_of | string | – | Calculation reference date YYYY-MM-DD (default today); selects the rules version |
| payslip | object | yes | Payslip fields to audit - see /catalog input spec |
| prefecture | string | yes | Prefecture (romaji or Japanese), e.g. 'Tokyo' |
| standard_monthly_yen | integer | – | Standard monthly remuneration if known (else estimated from salary) |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_retirement_tax Jp Retirement Tax ~175
Retirement income tax: deduction by years of service, half-taxation rules, exact withholding rounding. $0.02/call. Deterministic, cites primary sources; errors and unverified rules are never billed.
| Name | Type | Req | Description |
|---|---|---|---|
| disability | boolean | – | True if retirement is due to disability (extra deduction) |
| is_officer | boolean | – | True for an officer/executive (short-service officer rules) |
| payout_yen | integer | yes | Retirement allowance paid, in yen |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| years_of_service | integer | yes | Years of service (retirement income deduction) |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
jp_social_insurance Jp Social Insurance ~227
Monthly social insurance premiums from the official Kyokai-Kenpo grade table (FY2026). $0.01/call. Deterministic, cites primary sources; errors and unverified rules are never billed. Choose this when you only need the monthly social insurance premiums for a given monthly remuneration (official grade table); no tax is computed - for take-home pay use jp_payroll_net.
| Name | Type | Req | Description |
|---|---|---|---|
| age | integer | – | Age in years (selects care-insurance and other age-gated rules) |
| as_of | string | – | Calculation reference date YYYY-MM-DD (default today); selects the rules version |
| monthly_remuneration_yen | integer | yes | Monthly remuneration in yen (grade table lookup) |
| prefecture | string | yes | Prefecture (romaji or Japanese), e.g. 'Tokyo' |
| x_payment | string | – | Optional: base64 X-PAYMENT header value (x402 exact scheme, USDC on Base mainnet). Omit it to receive the payment requirements (accepts[] + docs) for this call without being charged. |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | yes | JSON body of the underlying call (see /samples/{product} for each product's shape) |
| how_to_pay | string | – | – |
| payment_required | boolean | – | true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment |
| receipt_id | string | – | set on paid results; free re-fetch via get_receipt |
| status | integer | yes | HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error) |
No examples provided.
How do I install the com.mart402/jp-statutory MCP server?
com.mart402/jp-statutory is a hosted endpoint at https://mart402.com/mcp/jp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mart402.com
claude mcp add --transport http com-mart402-jp-statutory 'https://mart402.com/mcp/jp'
What is the com.mart402/jp-statutory MCP server?
com.mart402/jp-statutory is an MCP server listed in the public MCP registry as com.mart402/jp-statutory. Japan statutory calculations: net pay, social insurance, tax walls, holidays. Cited sources, x402. This page covers its hosted endpoint (https://mart402.com/mcp/jp).
Is the com.mart402/jp-statutory MCP server safe to use?
com.mart402/jp-statutory scores 72 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the com.mart402/jp-statutory MCP server expose?
com.mart402/jp-statutory exposes 16 tools: get_catalog, get_receipt, get_sample, jp_company_profile, jp_payroll_net, and 11 more. Their descriptions and schemas cost roughly 3,551 tokens of context every time the server is loaded.
Does the com.mart402/jp-statutory MCP server require authentication?
No. We connected to com.mart402/jp-statutory without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the com.mart402/jp-statutory MCP server still maintained?
com.mart402/jp-statutory is still listed as active in the MCP registry. We last reached this channel on 23 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.