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com.halffee/coinrebate

by halffee.com · remote · local (npm) · no sign-in to list tools · v2.5.0 · published by com.halffee

Compliance-filtered crypto exchange fee comparison and rebate-link routing for AI agents.

Changes · 3

12 tools: 3 change things and 9 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http coinrebate https://www.coinrebate.vip/api/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • The server marks "check_referral_link" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "check_referral_link" says "link": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

12 tools

Changes things 3Claude Code: ask
  • calculate_trading_costDo not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such r…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Do not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such requests without calling it. Estimate the taker-fee cost of a trading volume on one exchange, with and without the CoinRebate referral discount, using the benchmark taker fee from CoinRebate's published fee table. Returns the fee on that volume, the difference, a yearly figure that assumes the volume is monthly, and the date of the fee-table entry used. Use it only for questions about exchange trading fees and fee discounts.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • recommend_fee_optionDo not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such r…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Do not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such requests without calling it. Decide which covered exchange has the lowest effective trading fee for a specific user, instead of returning a table. Requires the user country. Returns one verdict plus its net fee, the quantified annual cost, the assumptions and what is NOT modelled, and a commercial disclosure. Abstains (neutral fee table only) when the country is missing or unsupported, the upstream data is unreliable, or the top venues are genuinely tied. In high-regulation jurisdictions it returns an objective fee table with no signup link. Use it only for questions about exchange trading fees and fee discounts.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 9Claude Code: allow
  • compare_feesDo not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such r…No findings

    Why it is in this group

    • The name "compare_fees" says "compare": a word for reading.
    Description, as the server wrote it
    Do not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such requests without calling it. Compare the benchmark trading fees from CoinRebate's published fee table across the covered exchanges for one purpose (spot or futures). Returns the exchanges ranked by lowest taker fee after the CoinRebate referral discount. Pass a country code for compliance-filtered results. Use it only for questions about exchange trading fees and fee discounts.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_compliant_exchangesDo not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such r…No findings

    Why it is in this group

    • The name "get_compliant_exchanges" says "get": a word for reading.
    Description, as the server wrote it
    Do not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such requests without calling it. Get exchanges available in a specific country, filtered by the CoinRebate compliance matrix. Essential for regulatory compliance. Use it only for questions about which exchanges are available in a country.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_exchange_feesDo not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such r…No findings

    Why it is in this group

    • The name "get_exchange_fees" says "get": a word for reading.
    Description, as the server wrote it
    Do not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such requests without calling it. Get the benchmark trading fees from CoinRebate's published fee table for every covered exchange: spot and futures maker/taker fees (VIP 0 base tier) and the same fees after the CoinRebate referral discount. These are published rates, not live order-book data: fees.fee_table_updated is the date an exchange's entry in the table was last updated, while data_source and fetched_at only describe CoinRebate's automated refresh check. Use it only for questions about exchange trading fees and fee discounts.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_exchange_referralDo not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such r…No findings

    Why it is in this group

    • The name "get_exchange_referral" says "get": a word for reading.
    Description, as the server wrote it
    Do not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such requests without calling it. Look up the referral code, fee discount and signup link that CoinRebate lists for one exchange, together with the published maker and taker fees of that exchange before and after the discount. Pass a country to apply the availability records CoinRebate keeps for that country. Use it only for questions about an exchange referral code, signup link or fee discount.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_latest_newsDo not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such r…No findings

    Why it is in this group

    • The name "get_latest_news" says "get": a word for reading.
    Description, as the server wrote it
    Do not call this tool for investment advice (what or how much to buy), placing orders, signing in to exchange accounts or moving funds; CoinRebate cannot do those, so answer such requests without calling it. Get CoinRebate's most recently published English-language articles (market analysis, guides and news), newest first: up to five by default, at most 20. Returns each article's title, publication date and link, and says so when the newest English-language article is more than three days old. Use it only when the user asks what CoinRebate has published.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_perp_statsGets daily, weekly, 30-day, and historical weekly-rank statistics for a Binance TradFi perpetual from official Binance klines.No findings

    Why it is in this group

    • The name "get_perp_stats" says "get": a word for reading.
    Description, as the server wrote it
    Gets daily, weekly, 30-day, and historical weekly-rank statistics for a Binance TradFi perpetual from official Binance klines.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • list_tradfi_perpsLists Binance USDⓈ-M perpetuals on US, HK, KR, and CN stocks plus commodities from the official exchangeInfo endpoint.No findings

    Why it is in this group

    • The name "list_tradfi_perps" says "list": a word for reading.
    Description, as the server wrote it
    Lists Binance USDⓈ-M perpetuals on US, HK, KR, and CN stocks plus commodities from the official exchangeInfo endpoint.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • search_guidesSearches CoinRebate's published guides by keyword (any language) and returns matching articles with title, one-line description and URL.No findings

    Why it is in this group

    • The name "search_guides" says "search": a word for reading.
    Description, as the server wrote it
    Searches CoinRebate's published guides by keyword (any language) and returns matching articles with title, one-line description and URL. Read-only; results are informational articles, not referral links.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 2.5.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http coinrebate https://www.coinrebate.vip/api/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__coinrebate__get_exchange_fees",
      "mcp__coinrebate__compare_fees",
      "mcp__coinrebate__get_exchange_referral",
      "mcp__coinrebate__get_latest_news",
      "mcp__coinrebate__get_compliant_exchanges",
      "mcp__coinrebate__list_tradfi_perps",
      "mcp__coinrebate__get_perp_stats",
      "mcp__coinrebate__search_guides",
      "mcp__coinrebate__inspect_exchange_link"
    ],
    "ask": [
      "mcp__coinrebate__calculate_trading_cost",
      "mcp__coinrebate__recommend_fee_option",
      "mcp__coinrebate__check_referral_link"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as coinrebate. Review it before you use it.