Acb Tax MCP server

by haiiibin·io.github.haiiibin/acb-tax-mcp·v0.5.0

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Canadian ACB and capital gains: average-cost, per-disposition gains, superficial-loss detection.

A92/100grade A

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Safety scan

A92/100

full report

Adoption

Growing

0 stars96 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Acb Tax tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.10 · 2026-11-03 · same rubric, same numbers if you re-run it

no findings

Code scan10 source files scanned25/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitylocal package, no credentials required12/15
Maintenancelast push 25 days ago15/15
Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Overall 92/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

How Acb Tax compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score: 92/100; higher than 95% of 48,255 servers
Downloads a week: 96; more than 62% of 12,191 servers with a package

Release history: 2 versions in the registry since 2026-08-14, latest 2026-10-09, typically one every 56 days.

Install Acb Tax in Claude Code, Cursor or VS Code

claude mcp add acb-tax-mcp -- uvx acb-tax-mcp

Add to Cursor

What the publisher says

From the Acb Tax repository's README, as published. We do not edit it. Read it on GitHub

acb-tax-mcp

An MCP server that computes Canadian adjusted cost base (ACB) and capital gains from your trade history: average-cost tracking, per-disposition gains, and superficial-loss detection, returned as structured JSON.

Ask your assistant "what are my capital gains for 2024?" or "did I trigger any superficial losses?" and it runs the CRA rules over your transactions instead of you wrestling a spreadsheet.

⚠️ This is a calculation aid, not tax advice. Verify every number before you file, and consult a professional for anything non-trivial. See Limitations.

Works with Claude Desktop, Claude Code, Cursor, or any MCP-compatible client.

Features

Implements the CRA average-cost method (all shares of a security pool into one ACB; gains are against the average, not FIFO) and the superficial-loss rule (loss denied and deferred into the ACB of substitute shares bought within 30 days before or after the sale). Commissions and per-trade CAD FX conversion are handled.

Install

No install needed to try it: open the Glama server page and use Try in Browser to call the tools against a sandbox with a couple of sample transactions.

Requires Python 3.10+.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Acb Tax: common questions

Is Acb Tax MCP server safe?: Yes, by our scan: it is graded A (92/100). Read the Acb Tax safety report
How do I install Acb Tax?: It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Acb Tax need an API key?: Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Acb Tax maintained?: The last commit was 26 days ago (2026-10-09). The latest release is v0.5.0.
How does Acb Tax compare with other MCP servers?: safety score 92/100 (higher than 95% of 48,255 servers); downloads a week 96 (more than 62% of 12,191 servers with a package). Full comparison.