FeeFighter
Audit junk fees, project annual costs and draft dispute letters. Free.
我该使用它吗
质量与安全性
发现（1）
- LOWTool 'dispute_letter' description lacks action verb在 dispute_letter 中
基于对工具定义和协议合规性的自动分析。
上下文开销
这是每次将服务器的工具加载到模型上下文窗口时所消耗的大致 token 数。数值越高，可用于其他任务的注意力就越少。
安装
一键安装
将以下内容添加到你的 `claude_desktop_config.json` 文件中：
{
"mcpServers": {
"fee-fighter": {
"url": "https://fee-fighter.magicteams.ai/mcp"
}
}
}远程端点
https://fee-fighter.magicteams.ai/mcpstreamable-http它能做什么
工具清单
工具（4）
🟢audit_fees(fees)
Audit a list of fees: annualize each one, total the yearly cost and monthly average, and flag charges above typical US ranges, duplicate names and disputable one-time fees.
输入模式
{
"type": "object",
"properties": {
"fees": {
"type": "array",
"items": {
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "Fee description, e.g. 'Overdraft fee'"
},
"amount": {
"type": "number",
"description": "Amount charged in USD"
},
"frequency": {
"type": "string",
"enum": [
"monthly",
"annual",
"one-time"
],
"description": "How often the fee recurs"
},
"category": {
"type": "string",
"description": "Optional benchmark category key, e.g. bank_overdraft"
}
},
"required": [
"name",
"amount",
"frequency"
]
},
"description": "Fees to audit, each with name, amount, frequency and optional category"
}
},
"required": [
"fees"
]
}🟢annual_cost(fees, years)
Project the cumulative cost of a fee list over 1-30 years by straight multiplication (no compounding), with a per-fee breakdown. Defaults to 1 year.
输入模式
{
"type": "object",
"properties": {
"fees": {
"type": "array",
"items": {
"type": "object",
"properties": {
"name": {
"type": "string"
},
"amount": {
"type": "number"
},
"frequency": {
"type": "string",
"enum": [
"monthly",
"annual",
"one-time"
]
},
"category": {
"type": "string"
}
},
"required": [
"name",
"amount",
"frequency"
]
}
},
"years": {
"type": "number",
"description": "Years to project (integer 1-30), default 1"
}
},
"required": [
"fees"
]
}🟢benchmark_fees(category)
Look up typical US consumer fee ranges by category (bank fees, subscriptions, airline charges, tickets and more). Omit category to return the whole reference table.
输入模式
{
"type": "object",
"properties": {
"category": {
"type": "string",
"description": "Category key to look up, e.g. bank_overdraft; omit for the full table"
}
}
}🟢dispute_letter(fee_name, amount, company, your_name, account_reference, ...)
Draft a firm, polite letter requesting a reversal or refund of a specific fee, including grounds, a 14-day written response request and escalation paths. Produces text only; nothing is sent.
输入模式
{
"type": "object",
"properties": {
"fee_name": {
"type": "string",
"description": "Name of the fee being disputed"
},
"amount": {
"type": "number",
"description": "Fee amount in USD"
},
"company": {
"type": "string",
"description": "Company or bank that charged the fee"
},
"your_name": {
"type": "string",
"description": "Your name, used to sign the letter"
},
"account_reference": {
"type": "string",
"description": "Optional account or reference number"
},
"date_charged": {
"type": "string",
"description": "Optional date the fee was charged"
},
"reason": {
"type": "string",
"description": "Optional grounds for the dispute"
},
"requested_action": {
"type": "string",
"description": "What to ask for, e.g. 'reverse or refund' or 'waive'; default 'reverse or refund'"
}
},
"required": [
"fee_name",
"amount",
"company",
"your_name"
]
}社区
证据