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io.github.jdhart81/taxcredit-engine

by jdhart81 · remote · no sign-in to list tools · v0.1.0 · published by GitHub user jdhart81

Auditable US clean-energy tax-credit scenarios for 45Q, 45V, 45Y, 48E, and 45X.

Changes · 2
CompareRegistry entry

5 tools: 2 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 taxcredit-engine https://mcp.viridisconservation.com/taxcredit-engine/mcp

Tools

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

5 tools

Changes things 2Claude Code: ask
  • calculate_tax_creditCalculate an auditable tax-credit scenario.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.
    Description, as the server wrote it
    Calculate an auditable tax-credit scenario. credit is 45Q, 45V, 45Y, 48E, or 45X. facts must contain the explicit credit-specific eligibility facts; missing facts return indeterminate. This is not tax or filing advice. Price: $2.00 per call after 10 free calls/day. Pay at /x402/taxcredit-engine/calculate_tax_credit with Base USDC, cash-fund payment_ref through escrow_checkout + confirm_escrow_funding, or use /seats.
  • verify_tax_credit_resultVerify an engine result's audit_sha256.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.
    Description, as the server wrote it
    Verify an engine result's audit_sha256. Pass the prior result object as JSON; any changed amount, fact, rule step, or source digest fails.
Only reads 3Claude Code: allow
  • describe_agentReturn fleet-standard capabilities, version, and pricing.No findings

    Why it is in this group

    • The name "describe_agent" says "describe": a word for reading.
    Description, as the server wrote it
    Return fleet-standard capabilities, version, and pricing.
  • get_rule_packReturn the bundled rules and official source metadata for one credit.No findings

    Why it is in this group

    • The name "get_rule_pack" says "get": a word for reading.
    Description, as the server wrote it
    Return the bundled rules and official source metadata for one credit.
  • list_rule_packsList supported credits and the current bundled rule-pack digest.No findings

    Why it is in this group

    • The name "list_rule_packs" says "list": a word for reading.
    Description, as the server wrote it
    List supported credits and the current bundled rule-pack digest.

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

claude mcp add --transport http taxcredit-engine https://mcp.viridisconservation.com/taxcredit-engine/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__taxcredit-engine__list_rule_packs",
      "mcp__taxcredit-engine__get_rule_pack",
      "mcp__taxcredit-engine__describe_agent"
    ],
    "ask": [
      "mcp__taxcredit-engine__calculate_tax_credit",
      "mcp__taxcredit-engine__verify_tax_credit_result"
    ],
    "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 taxcredit-engine. Review it before you use it.