Korea & Asia Everyday Calculators (kWhmate)

com.kwhmatePublished by kwhmate.comOfficial publisherv1.0.0Updated Oct 27, 2026

Free calculators with sources: electricity bills (KR/TW/PH/JP), Korea taxi fares, tax refunds.

VerifiedStreamable HTTPWeb executableLocation & LifestyleProductivity & WorkflowFinance

Overview

AI-generated overview

Remote MCP server offering sourced everyday calculators for Korea and Asia: electricity bills, LED savings, taxi fares, tax refunds, school scores and budgets.

What you can do
  • Estimate household electricity bills and LED replacement savings for Korea, Taiwan, the Philippines and Japan
  • Estimate Seoul and Busan taxi fares and Korea tourist VAT refunds
  • Convert Korean CSAT standard scores, high-school class ranks and GPA scales
  • Estimate Korean student loan repayment, education tax credits, gap-investment cash needs, whistleblower rewards and domestic travel budgets
  • Return each result as an estimate together with its source and page reference
When to use it
Useful when someone wants quick, source-cited estimates of Korean or Asian household costs, fares, school scores, loans or travel budgets without opening each calculator site. Handy for assistants answering everyday money and study questions about Korea, Taiwan, the Philippines or Japan.
Requirements
A remote streamable HTTP endpoint; no package, account, API key, environment variable or header is declared.
Before you install
All results are estimates based on published rate tables and may not match an actual bill, grade or refund; the server itself notes that rates and rules change and should be checked against the latest official notice. Some tools cover tax, loan and investment topics and are informational only, not advice.

Installation

In SourceWeft

  1. Open Korea & Asia Everyday Calculators (kWhmate) in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.kwhmate%2Fcalculators/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "korea-asia-everyday-calculators-kwhmate": {
      "type": "http",
      "url": "https://kwhmate.com/api/mcp"
    }
  }
}

Tools

19

kr_electricity

Korea household electricity bill (KEPCO residential low-voltage, progressive tiers)

Korea household electricity bill (KEPCO residential low-voltage, progressive tiers). Same code as https://kwhmate.com/ko/electricity-bill/. Reference: 기준: 2026년 4분기 요금 · 출처: 한국전력공사 주택용 전력(저압) 요금표. Returns an estimate with the source and page URL.

Parameterskwhrequiredseason

kr_led_savings

Korea LED replacement savings (household tiers or shop unit price)

Korea LED replacement savings (household tiers or shop unit price). Same code as https://kwhmate.com/ko/led-savings/. Reference: 기준: 2026년 한전 주택용 저압 요금표(기타 계절) · 가게·사무실은 고지서 단가 직접 입력. Returns an estimate with the source and page URL.

Parametersmodecountled_costnew_wattsold_wattsother_kwhunit_pricehours_per_day

tw_electricity

Taiwan electricity bill (Taipower residential progressive rates)

Taiwan electricity bill (Taipower residential progressive rates). Same code as https://kwhmate.com/tw/electricity-bill/. Reference: 依據：台灣電力公司 2025年10月1日起實施之住宅用累進電價（2026年電價審議會凍漲）. Returns an estimate with the source and page URL.

Parameterskwhrequiredsummerbimonthly

tw_led_savings

Taiwan LED replacement savings (Taipower non-summer, monthly brackets)

Taiwan LED replacement savings (Taipower non-summer, monthly brackets). Same code as https://kwhmate.com/tw/led-savings/. Reference: 依據：台電住宅用累進電價（非夏月、單月級距）. Returns an estimate with the source and page URL.

Parameterscountled_costnew_wattsold_wattsother_kwhhours_per_day

ph_meralco

Philippines Meralco bill (this month's residential rate)

Philippines Meralco bill (this month's residential rate). Same code as https://kwhmate.com/ph/meralco-bill-calculator/. Reference: Source: Meralco rate announcement for October 2026 · lifeline discounts and local taxes not included. Returns an estimate with the source and page URL.

Parameterskwhrequired

ph_led_savings

Philippines LED replacement savings (Meralco rates)

Philippines LED replacement savings (Meralco rates). Same code as https://kwhmate.com/ph/led-savings/. Reference: Rates: Meralco residential rates, October 2026. Returns an estimate with the source and page URL.

Parameterscountled_costnew_wattsold_wattsother_kwhhours_per_day

jp_electricity

Japan electricity bill (TEPCO Juryo Dento B)

Japan electricity bill (TEPCO Juryo Dento B). Same code as https://kwhmate.com/jp/electricity-bill/. Reference: 出典：東京電力エナジーパートナー「従量電灯B・C」・燃料費調整単価等一覧、経済産業省「2026年度の賦課金単価」. Returns an estimate with the source and page URL.

Parameterskwhrequiredamperesfuel_adjustment

jp_led_savings

Japan LED replacement savings (TEPCO Juryo Dento B, 30 A)

Japan LED replacement savings (TEPCO Juryo Dento B, 30 A). Same code as https://kwhmate.com/jp/led-savings/. Reference: 出典：東京電力エナジーパートナー「従量電灯B」. Returns an estimate with the source and page URL.

Parameterscountled_costnew_wattsold_wattsother_kwhhours_per_day

seoul_taxi

Seoul taxi fare (regular mid-size taxi meter estimate)

Seoul taxi fare (regular mid-size taxi meter estimate). Same code as https://koreasurvivalkit.com/taxi-fare-calculator/. Reference: Source: Seoul Metropolitan Government, mid-size taxi fares in effect since 1 February 2023 (checked September 2026). Returns an estimate with the source and page URL.

Parameterskmrequiredhouroutside_seoulslow_traffic_minutes

busan_taxi

Busan taxi fare (regular mid-size taxi meter estimate)

Busan taxi fare (regular mid-size taxi meter estimate). Same code as https://koreasurvivalkit.com/busan-taxi-fare-calculator/. Reference: Source: Busan Metropolitan City, taxi fares in effect since 1 June 2023 (checked September 2026). Returns an estimate with the source and page URL.

Parameterskmrequiredhouroutside_busanslow_traffic_minutes

korea_tax_refund

Korea tourist tax (VAT) refund estimate

Korea tourist tax (VAT) refund estimate. Same code as https://koreasurvivalkit.com/tax-refund-calculator/. Reference: Sources checked October 2026: VISITKOREA, Korea.net, Incheon Airport, Visit Seoul. Returns an estimate with the source and page URL.

Parametersstoreamountsrequiredstay_days

suneung_score

수능 표준점수·등급 (Korean CSAT standard score and grade)

수능 표준점수·등급 (Korean CSAT standard score and grade). Same code as https://gyesanmate.com/suneung-score/. Reference: 기준: 2027학년도 수능(한국교육과정평가원) · 실제 등급컷은 해마다 채점 결과로 달라짐. Returns an estimate with the source and page URL.

Parameterssdrawmeansubjectpercentileenglish_raw

naesin_grade

내신 등급 (Korean high-school class rank → grade, 5- or 9-grade system)

내신 등급 (Korean high-school class rank → grade, 5- or 9-grade system). Same code as https://gyesanmate.com/naesin-grade/. Reference: 기준: 고교 내신 상대평가 누적 비율 · 최종 등급은 학교 성적표 기준. Returns an estimate with the source and page URL.

Parametersrankrequiredtiessystemstudentsrequired

gpa_converter

학점 비례 환산 (GPA scale conversion 4.5 / 4.3 / 4.0)

학점 비례 환산 (GPA scale conversion 4.5 / 4.3 / 4.0). Same code as https://gyesanmate.com/gpa-converter/. Reference: 기준: 단순 비례 환산(참고용) · 학교·기업마다 환산식이 다르므로 지원처 기준이 우선. Returns an estimate with the source and page URL.

Parametersscorerequiredto_scalefrom_scale

student_loan

학자금대출 상환 (Korean student loan: standard repayment or income-contingent ICL)

학자금대출 상환 (Korean student loan: standard repayment or income-contingent ICL). Same code as https://gyesanmate.com/student-loan-repayment/. Reference: 출처: 교육부고시 제2026-12호(2026학년도 2학기, 시행 2026.7.1) · 상환율은 최신 공지 확인. Returns an estimate with the source and page URL.

Parameterstypedegreeprincipaldefer_yearsrepay_yearsgross_salaryrate_percent

education_tax_credit

교육비 세액공제 (Korean education expense tax credit, 2026 spending)

교육비 세액공제 (Korean education expense tax credit, 2026 spending). Same code as https://gyesanmate.com/education-tax-credit/. Reference: 출처: 소득세법 제59조의4, 2025년 세법개정(2025.12 국회 통과). Returns an estimate with the source and page URL.

Parametersitemsrequireddecided_tax

gap_investment

갭투자 실투자금 (Korean "gap" investment: acquisition tax, brokerage, cash needed)

갭투자 실투자금 (Korean "gap" investment: acquisition tax, brokerage, cash needed). Same code as https://gyesanmate.com/gap-investment/. Reference: 출처: 지방세법 제13조의2(시행 2026.1.1)·제151조 · 1주택 세율·중개보수는 최신 공지 확인 · 투자 권유 아님. Returns an estimate with the source and page URL.

Parameterspricerequiredyearshousesjeonserequiredover_85m2other_costsadjusted_areagrowth_percent

report_reward

신고 포상금·보상금 (Korean whistleblower rewards: tax evasion, hidden assets, card refusal, public interest, corruption)

신고 포상금·보상금 (Korean whistleblower rewards: tax evasion, hidden assets, card refusal, public interest, corruption). Same code as https://gyesanmate.com/reward/calculator/. Reference: 확인일 2026-10-12 · 출처: 국세기본법 시행령 제65조의4, 공익신고자 보호법 시행령 제22조, 부패방지권익위법 시행령 제77조 · 참고용 추정치. Returns an estimate with the source and page URL.

Parameterskindamountrequired

travel_budget

국내 여행 예산 (Korea domestic trip budget: transport, stay, food, admission ranges)

국내 여행 예산 (Korea domestic trip budget: transport, stay, food, admission ranges). Same code as https://gyesanmate.com/travel-budget/. Reference: 확인일 KTX 2026-10-12·고속버스 2026-10-13 · 출처: 국토교통부 발표(KTX), KOBUS 시간표조회(고속버스) · 결과는 추정치. Returns an estimate with the source and page URL.

Parameterstofarefrommodetollroomscar_kmnightspeoplefood_maxfood_minstay_max+6 more

Version history

1
  1. v1.0.0LatestOct 15, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.