Clear Tape

by cleartape.ai · remote · no sign-in to list tools · v1.0.0 · published by ai.cleartape

Free trading calculators, trading-system rules, a glossary and lesson search. No market data.

Changes · 8

Compare Registry entry

11 tools: 8 change things and 3 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things8Claude Code: ask: see these tools
Only reads3Claude Code: allow: see these tools

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

claude mcp add --transport http clear-tape https://app.cleartape.ai/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warncalculate_atr_stop
The server marks "calculate_atr_stop" 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":false}; The name "calculate_atr_stop" says "stop": 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.

11 tools

Changes things 8Creates or changes something that can be changed back.Claude Code: ask

calculate_atr_stopA volatility (ATR) stop: entry minus (long) or plus (short) a multiple of the average true range.1 finding
Why it is in this group
- The name "calculate_atr_stop" says "stop": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "calculate_atr_stop" 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":false}; The name "calculate_atr_stop" says "stop": a word for a change.
  What this check looks for
Description, as the server wrote it
A volatility (ATR) stop: entry minus (long) or plus (short) a multiple of the average true range. Give atr, or at least five recent daily ranges (high minus low). Computed with the same function as Clear Tape's free atr stop-loss calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
Annotations the server declares
- title: ATR stop-loss calculator
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
calculate_drawdown_recoveryThe gain needed to recover from a drawdown and, optionally, how many losing trades in a row at a fixed risk per trade cause it.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
The gain needed to recover from a drawdown and, optionally, how many losing trades in a row at a fixed risk per trade cause it. Computed with the same function as Clear Tape's free drawdown recovery calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
Annotations the server declares
- title: Drawdown recovery calculator
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
calculate_expectancyExpectancy per trade, per 100 trades, payoff ratio, break-even win rate and profit factor from a win rate and average win and loss.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
Expectancy per trade, per 100 trades, payoff ratio, break-even win rate and profit factor from a win rate and average win and loss. Computed with the same function as Clear Tape's free trading expectancy calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
Annotations the server declares
- title: Trading expectancy calculator
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
calculate_kelly_criterionFull and fractional Kelly risk per trade from a win rate and payoff ratio, with the edge per 1R and the break-even win rate.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
Full and fractional Kelly risk per trade from a win rate and payoff ratio, with the edge per 1R and the break-even win rate. Computed with the same function as Clear Tape's free kelly criterion calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
Annotations the server declares
- title: Kelly criterion calculator
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
calculate_losing_streakThe exact probability of at least one losing streak of a given length over a number of independent trades, the expected longest streak and the streak 95% of sequences stay within.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
The exact probability of at least one losing streak of a given length over a number of independent trades, the expected longest streak and the streak 95% of sequences stay within. Computed with the same function as Clear Tape's free losing streak calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
Annotations the server declares
- title: Losing streak calculator
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
calculate_position_sizePosition size from the stop: how many shares to buy (or short) so that a stop-out loses a set percentage of the account.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
Position size from the stop: how many shares to buy (or short) so that a stop-out loses a set percentage of the account. Computed with the same function as Clear Tape's free position size calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
Annotations the server declares
- title: Position size calculator
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
calculate_risk_rewardRisk/reward ratio of a planned trade, the win rate it needs to break even, and (optionally) an exit expressed as an R multiple.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
Risk/reward ratio of a planned trade, the win rate it needs to break even, and (optionally) an exit expressed as an R multiple. Computed with the same function as Clear Tape's free risk/reward and r-multiple calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
Annotations the server declares
- title: Risk/reward and R-multiple calculator
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
calculate_trading_costThe cost of one round trip (commissions, bid-ask spread, slippage) in USD, in R, as a share of the target move and of the position, and over a year of trades.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
The cost of one round trip (commissions, bid-ask spread, slippage) in USD, in R, as a share of the target move and of the position, and over a year of trades. Computed with the same function as Clear Tape's free trading cost calculator page (linked in the result), not estimated. Returns the inputs, each result with its unit, the formula and the page link. Educational, not investment advice.
Annotations the server declares
- title: Trading cost calculator
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Only reads 3Looks things up and changes nothing.Claude Code: allow

get_trading_system_rulesWithout id: lists Clear Tape's eleven preset trading systems (trend, breakout, momentum and volume) with their style, holding period and one-line entry, stop and exit.No findings
Why it is in this group
- The name "get_trading_system_rules" says "get": a word for reading.
Description, as the server wrote it
Without id: lists Clear Tape's eleven preset trading systems (trend, breakout, momentum and volume) with their style, holding period and one-line entry, stop and exit. With id: one system's exact written rules (entry, stop, exit, target, parameters, the data it needs, terms, where it differs from the published method), its strengths, weaknesses, who it suits and its sources, worded exactly as on its strategy page. Rules only: no signals, no prices, no performance figures. Educational, not investment advice.
Annotations the server declares
- title: Trading system rules
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
lookup_glossary_termLooks up a trading term in Clear Tape's bilingual (English and Simplified Chinese) glossary of about 70 terms, such as "R multiple", "ATR", "drawdown" or "止损".No findings
Why it is in this group
- The name "lookup_glossary_term" says "lookup": a word for reading.
Description, as the server wrote it
Looks up a trading term in Clear Tape's bilingual (English and Simplified Chinese) glossary of about 70 terms, such as "R multiple", "ATR", "drawdown" or "止损". Matches names, abbreviations and pinyin, and tolerates misspellings. Returns the definition, the term in the other language, close matches and links.
Annotations the server declares
- title: Trading glossary
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
search_learningSearches Clear Tape's free trading education by keyword: the Learn articles, the Academy lessons, the trading-strategy pages and the calculators, in English or Chinese.No findings
Why it is in this group
- The name "search_learning" says "search": a word for reading.
Description, as the server wrote it
Searches Clear Tape's free trading education by keyword: the Learn articles, the Academy lessons, the trading-strategy pages and the calculators, in English or Chinese. Returns titles, one-line summaries and links to read the full page. No market data.
Annotations the server declares
- title: Search trading lessons
- 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 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http clear-tape https://app.cleartape.ai/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__clear-tape__get_trading_system_rules",
      "mcp__clear-tape__lookup_glossary_term",
      "mcp__clear-tape__search_learning"
    ],
    "ask": [
      "mcp__clear-tape__calculate_position_size",
      "mcp__clear-tape__calculate_risk_reward",
      "mcp__clear-tape__calculate_expectancy",
      "mcp__clear-tape__calculate_atr_stop",
      "mcp__clear-tape__calculate_drawdown_recovery",
      "mcp__clear-tape__calculate_kelly_criterion",
      "mcp__clear-tape__calculate_trading_cost",
      "mcp__clear-tape__calculate_losing_streak"
    ],
    "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 clear-tape. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/ai.cleartape/clear-tape/changes.xml

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8 of these tools change something. Run those as governed actions.

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Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Source: MCP Registry. Synced Oct 21, 2026, 17:41 UTC.

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