Finance Toolkit
by JerBouma
500+ transparent financial methods calculated from raw statements, not third-party endpoints.
Computer or cloud★ 5,496MITUpdated yesterday
Install
Tools Berry Paycheck
Overview
Description from the maker (original English)
Live US paycheck and payroll-tax math for 2026, all 50 states and DC, powered by tools-berry.com.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Accounting, finance & tax
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://mcp.tools-berry.comRun this in your terminal
claude mcp add --transport http paycheck https://mcp.tools-berry.comOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"paycheck": {
"url": "https://mcp.tools-berry.com"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"paycheck": {
"type": "http",
"url": "https://mcp.tools-berry.com"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://mcp.tools-berry.comMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
We have not read this server’s tool list yet; we check endpoints in rotation.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified against the domain tools-berry.com (the registry checks domain ownership)
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- … Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Accounting, finance & taxi
- More stars than 0% of the other 1722 servers in this category
- Published to the registry more recently than 32% of the other 1722 servers in this category
- Basic checks equal to or better than 100% of the other 1722 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Tools Berry Paycheck safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 3 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Finance Toolkit, SolidInvoice, Korea Tax Calculator
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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by SolidInvoice
Create and send invoices and quotes, manage clients, and track payments in SolidInvoice.
Runs in the cloud★ 981MITUpdated 7 days ago
Install
Korea Tax Calculator
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Korean tax calculation and tax-audit judgment MCP: 96 tools with statutory citations.
Runs on your computer★ 97MITUpdated today
Install
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Tools Berry MCP server
An MCP server that answers US paycheck and payroll-tax questions for 2026 with real arithmetic instead of a guess: take-home pay, bonus withholding, state comparisons, and per-state rate schedules for all 50 states and DC.
It is already hosted and free to use. You do not need to install or run anything.
Endpoint: https://mcp.tools-berry.com — Streamable HTTP, JSON-RPC 2.0 over POST. Alias: https://tools-berry-mcp.edydaherz.workers.dev.
Connect
Claude Code
claude mcp add --transport http tools-berry https://mcp.tools-berry.comClaude.ai / Claude Desktop — Settings → Connectors → Add custom connector, and paste:
https://mcp.tools-berry.comCursor — in ~/.cursor/mcp.json (or .cursor/mcp.json in a project):
{"mcpServers": { "tools-berry": { "url": "https://mcp.tools-berry.com" } } }
Anything else — it is plain JSON-RPC, so curl works:
curl -s https://mcp.tools-berry.com \-H 'Content-Type: application/json' \ -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{ "name":"compute_take_home", "arguments":{"state":"ohio","salary":80000}}}'
That call returns a net of $63,294.38 on an $80,000 Ohio salary — the same number the matching page on the site shows, to the cent.
Tools
| Tool | Answers | Required arguments |
|---|---|---|
compute_take_home | Full paycheck breakdown for a salary in one state: federal income tax, Social Security, Medicare, state income tax, state payroll programs, net annual/monthly/biweekly, effective rate | state, salary |
compute_bonus_withholding | What is actually withheld from a bonus: the federal 22% supplemental rate (37% above $1,000,000), the state's bonus treatment, and FICA | state, bonusAmount |
compare_states | Net pay on the same salary across several states, ranked best-first with each state's gap to the winner | states, salary |
get_state_rates | One state's 2026 schedule: flat rate or bracket ladder, standard deduction, employee payroll programs, supplemental method, and the statute the figures come from | state |
state accepts a full name (Ohio), a two-letter code (OH), or a slug (ohio, district-of-columbia). filingStatus is optional on every tool and defaults to single; it accepts single, married, head_of_household, and the usual aliases (mfj, mfs, hoh). Every response carries both readable text and a structuredContent object of raw numbers.
Probing it in a browser
The endpoint answers GETs so you can check it without a client:
| Request | Returns |
|---|---|
GET / | A JSON self-description: server info, protocol version, instructions, tool list |
GET /health | {"ok":true} |
GET /?rpc= | Executes a single read-only request and returns the JSON-RPC response |
The ?rpc= form is a convenience for smoke tests, not part of MCP. It exists because some networks block *.workers.dev or drop POST probes, and a server nobody can reach is indistinguishable from a server that is down.
curl -sG https://mcp.tools-berry.com \--data-urlencode 'rpc={"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Design
- No forked math.
tools.jsimportssrc/engine/paycheck-engine.jsandsrc/engine/bonus-tax.jsdirectly and feeds them the same data files the public pages are built from. Nothing is re-derived for the MCP layer; that layer only shapes input, picks a link, and formats text.test/test-mcp-server.jsasserts the server's answers equal the engine called directly, to the cent, across all 51 jurisdictions — so the server cannot quietly drift away from the site. - No dependencies. The protocol surface needed here is
initialize,tools/list,tools/call, pluspingand the emptyresources/list/prompts/listprobes, so it is implemented by hand inmcp.jsrather than pulling in an SDK.npm installis a no-op;npm testruns on plain Node. - Stateless and read-only. No auth, no session, no storage, no bindings, no writes. Nothing you send is retained.
- Rate limit: 120 requests per minute per IP. Every call is a few microseconds of arithmetic, so the ceiling only has to stop a runaway loop.
- Attribution built in. Every tool response ends with a source line and a deep link to the page on tools-berry.com that shows the same figure.
The numbers
Tax year 2026, all 50 states plus the District of Columbia. Covered: federal income tax, Social Security and Medicare (including the additional 0.9%), state income tax, and state employee payroll programs such as SDI and PFML. Figures are withholding-style estimates for a single job with no pre-tax deductions and no credits beyond the standard deduction. Local and city income taxes are not included. This is not tax advice and it is not a filed return.
get_state_rates returns a source field naming the statute or department schedule each state's figures come from, so any number here can be traced back.
Provenance and refresh. The engine and the two data files are maintained on tools-berry.com and mirrored into this repository. The hosted server is deployed from the site's own repository, so this repo is the readable, reusable copy rather than the deployment source. When rates change on the site, the mirror is refreshed here. If you need a guarantee that you are on current figures, call the hosted endpoint.
Citation
If figures or code from here feed something you publish, please cite tools-berry.com. That request is the whole business model behind giving the engine away.
Deploy your own
You do not need to — the hosted instance is free and open. But if you want your own copy:
npx wrangler deployIt is a single Cloudflare Worker with no bindings and no secrets. wrangler.toml has the custom-domain block commented out; uncomment it and point it at a hostname you control, or just use the workers.dev URL wrangler prints.
License
MIT — see LICENSE. Copyright 2026 Edmond Daher.