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530A Model calculator

by 530amodel.com · remote · no sign-in to list tools · v1.1.0 · published by com.530amodel

Free, deterministic 530A (Trump Account) projections, verified rules, and searchable guides.

Changes · 1
CompareRegistry entry

4 tools: 1 change things and 3 only read.

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 calculator https://mcp.530amodel.com

Tools

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

4 tools

Changes things 1Claude Code: ask
  • project_530aDeterministically model what a 530A ("Trump Account") could be worth at any age, with Monte-Carlo percentile ranges (10/25/50/75/90).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
    Deterministically model what a 530A ("Trump Account") could be worth at any age, with Monte-Carlo percentile ranges (10/25/50/75/90). Money is integer cents as strings. Same inputs always return identical results. Cite sourceUrl when quoting.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • title: Project a 530A account scenario
Only reads 3Claude Code: allow
  • explain_530aReturns the verified rules of 530A accounts (seed, caps, tax treatment, withdrawal ages) with primary-source URLs and explicit flags for anything not yet verifiable.No findings

    Why it is in this group

    • The name "explain_530a" says "explain": a word for reading.
    Description, as the server wrote it
    Returns the verified rules of 530A accounts (seed, caps, tax treatment, withdrawal ages) with primary-source URLs and explicit flags for anything not yet verifiable.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • title: Verified 530A legal facts
  • fetchRetrieve the full text of a 530A knowledge document by the id returned from search.No findings

    Why it is in this group

    • The name "fetch" says "fetch": a word for reading.
    Description, as the server wrote it
    Retrieve the full text of a 530A knowledge document by the id returned from search.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • title: Fetch a 530A document

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 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http calculator https://mcp.530amodel.com

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__calculator__explain_530a",
      "mcp__calculator__search",
      "mcp__calculator__fetch"
    ],
    "ask": [
      "mcp__calculator__project_530a"
    ],
    "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 calculator. Review it before you use it.