YZ CPA LLC MCP server

Which servers in the official MCP registry are YZ CPA LLC's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-18

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Whose server it is

Registry namecom.yz-cpa/us-tax-estimatorverified in the MCP registry

The registry name sits under yz-cpa.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-18

Stateanswerschecked 2026-10-18
Tools5
Server calls itselfus-tax-estimator
Server version1.0.0
Protocol version2025-06-18

On 2026-10-18 the server answered initialize and tools/list without a sign-in. First answer in 90 ms.

Tools it offers5 tools · read 2026-10-18

estimate_federal_tax
Estimates a year's U.S. federal income tax plus self-employment tax, the refund or balance due after withholding and estimated payments, marginal and effective rates, a bracket-by-bracket breakdown and, when prior-year figures are given…
list_federal_tax_deadlines
Lists upcoming U.S. federal tax deadlines with days remaining: quarterly estimated payments (1040-ES), individual return and extension dates, and optionally S-corporation, partnership and C-corporation return and estimated-tax dates…
check_foreign_reporting_requirements
Checks a U.S. person's foreign-asset figures against the filing thresholds for FBAR (FinCEN Form 114), Form 8938 (FATCA) and Form 3520 (gifts or bequests from a foreign individual or estate). Only the forms whose figures are given are…
screen_foreign_life_insurance_7702
Preliminary screen of whether a non-U.S. savings-type life insurance policy (for example a Hong Kong whole-life or savings plan) meets the U.S. definition of life insurance under IRC §7702, using the cash value accumulation test (CVAT)…
compare_offshore_compliance_options
For a U.S. taxpayer who missed FBAR or Form 8938 filings or left foreign income unreported, estimates and compares the cost of three catch-up paths: A) delinquent information return procedures (only when no income went unreported), B)…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "us-tax-estimator": {
      "type": "http",
      "url": "https://my.yz-cpa.com/mcp"
    }
  }
}

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.