jp-payroll

https://japan-payroll-api.tsumugi.workers.dev/mcp

answers a handshake

Registry name: io.github.kishida-devil/jp-payroll-mcp
Reports itself as: jp-payroll 0.4.5
Protocol version: 2025-06-18
Transport: streamable-http
HTTP status: 200
Latency: 263 ms
Tools: 30
Checked: 2026-09-06T08:24:06Z

Tools it reports

calculate_payslip
list_workers_compensation_rates
calculate_bonus
calculate_withholding_tax
judge_monthly_revision
decide_regular_remuneration
judge_leave_end_revision
calculate_payroll_batch
decide_regular_remuneration_batch
judge_annual_average
lookup_standard_remuneration
national_insurance
calculate_annual_cost
judge_annual_leave
judge_worker_type
check_insurance_eligibility
check_leave_exemption
get_age_milestones
calculate_year_end_adjustment
estimate_resident_tax
get_insurance_rates
get_minimum_wage
business_days
validate_invoice_numbers_batch
validate_corporate_number
consumption_tax
get_statute_text
calculate_overtime_pay
commuting_allowance_exemption
check_data_freshness

Check it yourself

curl -s -X POST https://japan-payroll-api.tsumugi.workers.dev/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"you","version":"0"}}}'