Alpaca Trading API integration for Model Context Protocol (MCP)
Nothing to run from here
OSVcalc 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.
2
tools declared
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trust score
remote
at its publisher
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calls last 7d
What it does
Czech self-employed tax calculator: income tax, social and health insurance, VAT, flat tax.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http osvcalc-mcp https://osvcalc.cz/api/mcp
# 2 — ask your agent for something these tools do
# calculate_osvc_taxes, get_field_guide
OSVcalc costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Publishernot claimed
OSAll 1 server
osvcalc1 server
1 category
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Installation
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.
Claude Codedeclared by this listing
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 osvcalc-mcp https://osvcalc.cz/api/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
Free on mcprush, and it answers at its publisher’s own address: this marketplace is not in the path, so there is no key of ours to hold and no card to add.
What it writes
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.
What you approve
2 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.
Computes the 2026 income tax, social and health insurance doplatek for a Czech OSVČ (self-employed person), given what they've been paid so far this year and their situation. Also returns VAT registration status, a regime comparison, next year's advances, and a filing guide, with an explanation in the requested locale. Income counts when it's actually received into the account, not when it was inv
| Parameter | Type | Required | Notes |
|---|---|---|---|
| income | number | no | All the money your customers have paid you this year, from 1 January until today. Count only what actually arrived in your bank account (or was handed to you in cash). An invoice you sent doesn't coun |
| saved | number | no | Money you have already put aside for this year's tax and insurance, for example in a savings account. It's subtracted from what you still need to set aside. Don't include the monthly zálohy you have |
| monthly | number | no | Your best guess of income still to be paid into your account per month, from the month after currentMonth through December. Only feeds the year-end projection, not the amount owed right now. |
| startMonth | integer | no | Month the business started, 1 to 12 (1 = January or earlier, i.e. self-employed for the whole year). Minimum social and health insurance is owed for every month from this one onward. |
| currentMonth | integer | no | The month the calculation is made for. Normally just leave it on the current month. Change it to see where you would stand in a different month, for example to plan ahead. Defaults to today's month. |
| paidNow | boolean | no | Zálohy are payments you send every month in advance, so you don't have to pay everything at once after the year ends. As OSVČ you usually pay two of them: social insurance to your local social securit |
| status | string | no | This decides how much minimum insurance you have to pay. • Hlavní (main): the business is your main livelihood. You pay minimum social and health insurance every month, even if you earn little. • Za |
| taxRegime | string | no | This decides how your tax is worked out. There are three options: • Výdajový paušál: you're taxed as if a fixed percentage of your income went on business costs. No receipts needed. Usually the bette |
| pausalRate | string | no | You pay tax only on your profit: what you earned minus what your business cost you. The výdajový paušál is a shortcut. Instead of collecting receipts, the law lets you count a fixed percentage of your |
| pausalBand | no | Force a specific pásmo instead of letting it be chosen automatically from income and pausalRate. Only meaningful with taxRegime 'pausalTax', and only useful if you've already declared into a band and | |
| actualExpenses | number | no | What your business has actually spent so far this year, as long as you can prove it with an invoice or receipt: materials, goods you resell, subcontractors, rent for your workspace, software, business |
| expectedExpenses | number | no | Your best guess of business costs still to be paid per month, from the month after currentMonth through December. Only used with taxRegime 'actual'; with 'pausal' expenses are a fixed percentage of in |
| platceDph | boolean | no | DPH is Czech VAT. A plátce DPH (VAT payer) adds VAT, usually 21 %, to most invoices, passes it on to the tax office and files regular VAT returns. In return, they can get back the VAT they paid on bus |
| crossBorderServices | boolean | no | Buying services from abroad (SaaS subscriptions, ads, hosting) or invoicing a business in another EU country can make you an identifikovaná osoba, with a 15-day registration deadline, even as a non-pa |
| vedlejsiSocialAdvances | boolean | no | Vedlejší only. Social insurance zálohy are owed only if you signed up for social insurance voluntarily, or from the year after the year your profit reached the rozhodná částka (117 521 Kč in 2026, §13 |
| soubeh | boolean | no | Tick this if you also have a job this year: a regular employment contract (pracovní poměr), or a DPP or DPČ agreement. Your wages and your business profit are added together in one tax return, so a s |
| employmentIncome | number | no | Your gross pay (hrubá mzda) from your job so far this year: the amount before tax and insurance are taken off, as shown on your payslips. It's not the amount that lands in your account. It's added to |
| otherIncome | number | no | Income besides this activity and employment: rent (§9), capital income such as interest or dividends (§8) and other income (§10), for the whole year. It only matters for paušální daň, which is closed |
| vosPartner | boolean | no | A partner in a veřejná obchodní společnost (general partnership) cannot use paušální daň (§7a). Tick this to have the calculator treat paušální daň as unavailable. |
| credits | object | no | Optional tax credits and deductions (children, disability, spouse, gifts, mortgage interest, insurance, loss carried forward). Every field defaults to none. |
Returns every field calculate_osvc_taxes accepts, grouped the way the web calculator groups them, with the same label and explanation shown in its tooltips. Use this to explain an option to the user before they've decided on a value, without running a calculation.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| locale | string | no | Language for the returned explanation text. |
Free
$0 forever
- 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 OSVcalc or to call it, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
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Alert at 80% · then the tool returns a normal MCP error
Used this month: —
—Grade not published
No rule-by-rule report on file for this release
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.
This listing is an address its publisher runs, and you connect to it directly — this marketplace is not in the path. The scanner reads packages and public source, and an address is neither. So there is no grade — not a withheld one, an unmeasured one.
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 1.0.1.
1.0.1
undated
latestNo release note was published with this version.
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no reviews yet
Who can review
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.
Sign in to write one
Any signed-in account that does not publish OSVcalc can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
No reviews yet
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.