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Third-party server — not affiliated with ClaudeFinanceLab. This server is developed and maintained by OpenAccountants. ClaudeFinanceLab is a neutral directory and does not endorse, operate, or take any responsibility for this server. We are not liable for its availability, accuracy of outputs, data privacy practices, security, or fitness for any purpose. Eval scores are point-in-time automated test results — they do not constitute a security audit or ongoing guarantee of correctness. Never use third-party MCP servers for real financial decisions without independent due diligence. Server owners who object to their listing can contact us at evals@claudefinancelab.com for prompt removal. Full disclaimer →
What is an MCP server?

A live data connector for Claude. Once connected, Claude can pull real OpenAccountants Tax Rules MCP data directly into any conversation — no copy-paste, no spreadsheet exports, no switching tabs.

Connect in 3 steps
  1. Get a free API key — create one here
  2. Copy the install config below into your claude_desktop_config.json
  3. Restart Claude Desktop — the tools appear automatically
Full setup guide (5 min) →
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OpenAccountants Tax Rules MCP

OpenAccountants MCP server provides verified tax rules sourced directly from primary legislation and reviewed by qualified accountants. Covers tax rates, allowable thresholds, deductions, filing deadlines, and step-by-step computation guidance across multiple jurisdictions. Unlike general-purpose AI tax knowledge, rules are sourced from legislation and accountant-reviewed. Free to connect with no API key required.

🧾 Tax 🔓 No authentication needed stdio Open Source
Not yet evaluated
Install Config
# Install via:
# npx @modelcontextprotocol/inspector https://github.com/openaccountants/openaccountants

Full setup walkthrough: Getting Started Guide →

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