Model Context Protocol (MCP) server for freee API integration
Paycheck Calculator is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
Take-home pay for 2025-2026: IRS brackets, FICA wage base and state income tax for 50 states + DC.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http paycheck-calculator-mcp https://paycheck-calculator-mcp.lipmichal.workers.dev/mcp
# 2 — ask your agent for something these tools do
# calculate_take_home_pay, compare_states_take_home, salary_to_hourly and 2 more
Paycheck Calculator costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http paycheck-calculator-mcp https://paycheck-calculator-mcp.lipmichal.workers.dev/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
5 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Calculates take-home (net) pay for a US employee in any of the 50 states or DC for tax year 2025 or 2026: federal income tax from the IRS Rev. Proc. 2024-40 / 2025-32 bracket tables with the One Big Beautiful Bill Act standard deduction ($15,750 single for 2025, $16,100 for 2026), Social Security with the wage base ($176,100 in 2025, $184,500 in 2026), Medicare plus the 0.9% Additional Medicare ta
| Parameter | Type | Required | Notes |
|---|---|---|---|
| state | string | yes | US state or DC: two-letter code (CA), name (California) or slug (new-york). |
| filing_status | string | yes | Federal filing status. Qualifying surviving spouse uses married_filing_jointly. |
| tax_year | number | yes | Tax year: 2025 or 2026. |
| gross_annual | number | no | Gross annual pay in USD before any deduction. Give this OR gross_per_period. |
| gross_per_period | number | no | Gross pay for one pay period in USD. Multiplied by the periods in pay_frequency. |
| pay_frequency | string | no | Pay frequency: weekly (52), biweekly (26, default), semimonthly (24), monthly (12), quarterly (4) or annual (1). |
| pretax_401k_annual | number | no | Traditional (pre-tax) 401(k) deferral for the year in USD. Lowers income tax, not FICA. Leave out for Roth. |
| pretax_401k_percent | number | no | Traditional 401(k) deferral as a percent of gross (e.g. 6). Use instead of pretax_401k_annual. |
| hsa_annual | number | no | HSA contribution through payroll (cafeteria plan) for the year in USD. Lowers income tax, Social Security and Medicare. |
Runs the same gross pay through 2 to 10 states (or DC) and ranks them by annual take-home pay for tax year 2025 or 2026, showing state income tax, the method for each state (exact 2026 schedule for CA, NY, NJ, IL, PA, GA, NC; labeled estimate elsewhere; no wage income tax in AK, FL, NV, NH, SD, TN, TX, WA, WY) and how far each trails the best. Federal tax and FICA use the IRS 2025/2026 tables and
| Parameter | Type | Required | Notes |
|---|---|---|---|
| states | array | yes | 2 to 10 states, e.g. ["CA", "TX", "NY"]. |
| filing_status | string | yes | Federal filing status. Qualifying surviving spouse uses married_filing_jointly. |
| tax_year | number | yes | Tax year: 2025 or 2026. |
| gross_annual | number | no | Gross annual pay in USD before any deduction. Give this OR gross_per_period. |
| gross_per_period | number | no | Gross pay for one pay period in USD. Multiplied by the periods in pay_frequency. |
| pay_frequency | string | no | Pay frequency: weekly (52), biweekly (26, default), semimonthly (24), monthly (12), quarterly (4) or annual (1). |
| pretax_401k_annual | number | no | Traditional (pre-tax) 401(k) deferral for the year in USD. Lowers income tax, not FICA. Leave out for Roth. |
| pretax_401k_percent | number | no | Traditional 401(k) deferral as a percent of gross (e.g. 6). Use instead of pretax_401k_annual. |
| hsa_annual | number | no | HSA contribution through payroll (cafeteria plan) for the year in USD. Lowers income tax, Social Security and Medicare. |
Converts an annual salary to an hourly rate and to weekly, biweekly (26), semimonthly (24) and monthly gross pay. Defaults: 40 hours a week, 52 weeks (2,080 hours). Gross pay only; use calculate_take_home_pay for net.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| annual_salary | number | yes | Gross annual salary in USD. |
| hours_per_week | number | no | Paid hours per week (default 40). |
| weeks_per_year | number | no | Paid weeks per year (default 52; paid vacation still counts). |
Converts an hourly wage to weekly, monthly and annual gross pay, with optional weekly overtime hours at a multiplier (1.5 by default). Defaults: 40 hours a week, 52 weeks. Gross pay only; use calculate_take_home_pay for net.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| hourly_rate | number | yes | Hourly wage in USD. |
| hours_per_week | number | no | Regular hours per week (default 40). |
| weeks_per_year | number | no | Paid weeks per year (default 52). |
| overtime_hours_per_week | number | no | Overtime hours per week (default 0). |
| overtime_multiplier | number | no | Overtime pay multiplier (default 1.5). |
Returns the exact federal income tax brackets (rate, lower and upper bound, tax on lower brackets) and standard deduction for tax year 2025 or 2026 and a filing status, from IRS Rev. Proc. 2024-40 and Rev. Proc. 2025-32, including the One Big Beautiful Bill Act (P.L. 119-21) standard deduction increase for 2025 ($15,750 / $31,500 / $23,625). Also returns the Social Security wage base and Medicare
| Parameter | Type | Required | Notes |
|---|---|---|---|
| tax_year | number | yes | Tax year: 2025 or 2026. |
| filing_status | string | yes | Federal filing status. Qualifying surviving spouse uses married_filing_jointly. |
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install Paycheck Calculator or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | minimal | capability blast radius (minimal) — client exposure if the model is manipulated | −0 |
| coverage-honesty | manifest | inspection depth (manifest) — how much of the target the scan could see | −4 |
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
The scan read each tool’s name, description, input schema and annotations exactly as the server listed them the last time it answered us; no code was reviewed. We ask the server again about once a month, and a list that changed is graded again.
The implementation source was not read — this reflects the declared tool metadata only.
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. minimal is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| calculate_take_home_pay | no tags | |
| compare_states_take_home | no tags | |
| salary_to_hourly | no tags | |
| hourly_to_salary | no tags | |
| get_federal_tax_brackets | no tags |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.
Supply chain and provenance
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 1.0.0.
No release note was published with this version.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish Paycheck Calculator can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.