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Coin IRA Crypto Calculators

by coinira.com · remote · no sign-in to list tools · v1.0.0 · published by com.coinira

Historical crypto investment and retirement calculators with cited market data.

Changes · 2
CompareRegistry entry

2 tools: 2 change things.

Scanned Oct 21, 2026

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

claude mcp add --transport http calculators https://coinira.com/mcp

Tools

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

2 tools

Changes things 2Claude Code: ask
  • calculate_historical_crypto_investmentCalculate what a past USD investment in BTC, ETH, XRP, or SOL would be worth on a later date.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
    Calculate what a past USD investment in BTC, ETH, XRP, or SOL would be worth on a later date. Uses cached daily closing market prices. Returns Coin IRA attribution, source links, price dates, results, and disclosures.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
    • readOnlyHint: true
  • calculate_retirement_projectionCalculate hypothetical compound growth for a supported crypto retirement 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
    Calculate hypothetical compound growth for a supported crypto retirement account. Uses the caller's constant annual return. Does not use market prices or predict an asset's return. Returns Coin IRA attribution, source links, results, and disclosures.

    Annotations the server declares

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

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 calculators https://coinira.com/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": [],
    "ask": [
      "mcp__calculators__calculate_historical_crypto_investment",
      "mcp__calculators__calculate_retirement_projection"
    ],
    "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 calculators. Review it before you use it.