Jackpot Calculator
Estimate US lottery taxes, compare cash and annuity, split pool prizes and calculate jackpot odds.
使うべきか
品質と安全性
A
検出事項（1）
- LOWTool 'calculate_lottery_payout' description lacks action verbcalculate_lottery_payout 内
ツール定義とプロトコルへの準拠に関する自動分析に基づいています。
コンテキストコスト
~1,511トークン数（ツール定義）
~3.4 KB一般的なレスポンスサイズ
注意への影響は中程度（128k コンテキストの 1.18%）
これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。
インストール
ワンクリックインストール
これを `claude_desktop_config.json` ファイルに追加してください:
{
"mcpServers": {
"jackpot-calculator": {
"url": "https://jackpot-calculator-mcp.jiankn.workers.dev/mcp"
}
}
}リモートエンドポイント
https://jackpot-calculator-mcp.jiankn.workers.dev/mcpstreamable-httpできること
ツール一覧
ツール（4）
🟢 読み取り専用🟡 書き込み🔴 削除⚪ 不明
🟢calculate_lottery_payout(prize, game, stateCode, locality, status, ...)
Estimate taxes and withholding on a known lottery cash prize. Input dollars; result integer cents. Bundled 2026 rules.
入力スキーマ
{
"type": "object",
"properties": {
"prize": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 1000000000000,
"description": "US dollars, not cents. Maximum $1 trillion."
},
"game": {
"default": "custom",
"type": "string",
"enum": [
"powerball",
"megaMillions",
"custom"
]
},
"stateCode": {
"type": "string",
"enum": [
"AK",
"AL",
"AR",
"AZ",
"CA",
"CO",
"CT",
"DC",
"DE",
"FL",
"GA",
"HI",
"IA",
"ID",
"IL",
"IN",
"KS",
"KY",
"LA",
"MA",
"MD",
"ME",
"MI",
"MN",
"MO",
"MS",
"MT",
"NC",
"ND",
"NE",
"NH",
"NJ",
"NM",
"NV",
"NY",
"OH",
"OK",
"OR",
"PA",
"RI",
"SC",
"SD",
"TN",
"TX",
"UT",
"VA",
"VT",
"WA",
"WI",
"WV",
"WY"
],
"description": "US residence and ticket-purchase state, two-letter code. Cross-state claims are not modeled."
},
"locality": {
"description": "Only valid with stateCode NY.",
"type": "string",
"enum": [
"NYC",
"YONKERS"
]
},
"status": {
"default": "single",
"type": "string",
"enum": [
"single",
"joint",
"headOfHousehold"
]
},
"otherIncome": {
"default": 0,
"description": "Other annual income in US dollars before the standard deduction.",
"type": "number",
"minimum": 0,
"maximum": 1000000000000
}
},
"required": [
"prize",
"stateCode"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}🟢compare_lump_sum_annuity(jackpot, cashValue, game, stateCode, locality, ...)
Compare a published cash option with 30 growing annuity payments after taxes, including present value and break-even rate.
入力スキーマ
{
"type": "object",
"properties": {
"jackpot": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 1000000000000,
"description": "Advertised annuity total in US dollars."
},
"cashValue": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 1000000000000,
"description": "Published cash option in US dollars; do not infer it from a fixed ratio."
},
"game": {
"default": "custom",
"type": "string",
"enum": [
"powerball",
"megaMillions",
"custom"
]
},
"stateCode": {
"type": "string",
"enum": [
"AK",
"AL",
"AR",
"AZ",
"CA",
"CO",
"CT",
"DC",
"DE",
"FL",
"GA",
"HI",
"IA",
"ID",
"IL",
"IN",
"KS",
"KY",
"LA",
"MA",
"MD",
"ME",
"MI",
"MN",
"MO",
"MS",
"MT",
"NC",
"ND",
"NE",
"NH",
"NJ",
"NM",
"NV",
"NY",
"OH",
"OK",
"OR",
"PA",
"RI",
"SC",
"SD",
"TN",
"TX",
"UT",
"VA",
"VT",
"WA",
"WI",
"WV",
"WY"
],
"description": "US residence and ticket-purchase state, two-letter code. Cross-state claims are not modeled."
},
"locality": {
"description": "Only valid with stateCode NY.",
"type": "string",
"enum": [
"NYC",
"YONKERS"
]
},
"status": {
"default": "single",
"type": "string",
"enum": [
"single",
"joint",
"headOfHousehold"
]
},
"otherIncome": {
"default": 0,
"description": "Other annual income in US dollars before the standard deduction.",
"type": "number",
"minimum": 0,
"maximum": 1000000000000
},
"discountRate": {
"default": 0.04,
"description": "Annual discount rate as a fraction, e.g. 0.04 for 4%.",
"type": "number",
"minimum": 0,
"maximum": 1
},
"winners": {
"default": 1,
"description": "Number of jackpot-winning tickets sharing the prize.",
"type": "integer",
"minimum": 1,
"maximum": 10000
},
"sharePercent": {
"default": 100,
"description": "Your percentage of one winning ticket.",
"type": "number",
"exclusiveMinimum": 0,
"maximum": 100
}
},
"required": [
"jackpot",
"cashValue",
"stateCode"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}🟢calculate_pool_share(prize, members, game, stateCode, locality, ...)
Estimate one equal member’s cash prize, taxes and withholding. Each member is assumed to have the specified tax profile.
入力スキーマ
{
"type": "object",
"properties": {
"prize": {
"type": "number",
"exclusiveMinimum": 0,
"maximum": 1000000000000,
"description": "Whole ticket cash prize in US dollars."
},
"members": {
"type": "integer",
"minimum": 2,
"maximum": 10000,
"description": "Equal owners of one ticket. Result assumes every member has the specified tax profile."
},
"game": {
"default": "custom",
"type": "string",
"enum": [
"powerball",
"megaMillions",
"custom"
]
},
"stateCode": {
"type": "string",
"enum": [
"AK",
"AL",
"AR",
"AZ",
"CA",
"CO",
"CT",
"DC",
"DE",
"FL",
"GA",
"HI",
"IA",
"ID",
"IL",
"IN",
"KS",
"KY",
"LA",
"MA",
"MD",
"ME",
"MI",
"MN",
"MO",
"MS",
"MT",
"NC",
"ND",
"NE",
"NH",
"NJ",
"NM",
"NV",
"NY",
"OH",
"OK",
"OR",
"PA",
"RI",
"SC",
"SD",
"TN",
"TX",
"UT",
"VA",
"VT",
"WA",
"WI",
"WV",
"WY"
],
"description": "US residence and ticket-purchase state, two-letter code. Cross-state claims are not modeled."
},
"locality": {
"description": "Only valid with stateCode NY.",
"type": "string",
"enum": [
"NYC",
"YONKERS"
]
},
"status": {
"default": "single",
"type": "string",
"enum": [
"single",
"joint",
"headOfHousehold"
]
},
"otherIncome": {
"default": 0,
"description": "Other annual income in US dollars before the standard deduction.",
"type": "number",
"minimum": 0,
"maximum": 1000000000000
}
},
"required": [
"prize",
"members",
"stateCode"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}🟢calculate_lottery_odds(game, tickets, jackpotCash)
Calculate jackpot coverage for distinct combinations in one drawing and optional before-tax expected ticket return.
入力スキーマ
{
"type": "object",
"properties": {
"game": {
"type": "string",
"enum": [
"powerball",
"megaMillions"
]
},
"tickets": {
"default": 1,
"description": "Different number combinations in the SAME drawing; repeated combinations do not add coverage.",
"type": "integer",
"minimum": 1,
"maximum": 302575350
},
"jackpotCash": {
"description": "Optional jackpot cash option in US dollars, required to compute expected ticket return.",
"type": "number",
"exclusiveMinimum": 0,
"maximum": 1000000000000
}
},
"required": [
"game"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}コミュニティ
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