pl-firmy: Polish company check

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: Online shops & payments
• You need to fill in: Authorization

Install

Pick the AI app you use, then copy the settings.

You need

• Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

claude mcp add --transport http pl-firmy https://api.almmity.com/mcp --header 'Authorization: Bearer {api_key}'

{
  "mcpServers": {
    "pl-firmy": {
      "url": "https://api.almmity.com/mcp",
      "headers": {
        "Authorization": "Bearer {api_key}"
      }
    }
  }
}

{
  "servers": {
    "pl-firmy": {
      "type": "http",
      "url": "https://api.almmity.com/mcp",
      "headers": {
        "Authorization": "Bearer {api_key}"
      }
    }
  }
}

Your choice stays on this device in a cookie; no account needed.

Values you fill in

• Authorization secret required HTTP header
  Bearer API key. Free key: https://api.almmity.com/#klucz

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 8, 2026. The maker wrote them, not us; we show them as plain text.

• add_watch

  Once a day, check one Polish contractor (one NIP) in public registries. The check reads VAT status and white-list bank accounts from the Ministry of Finance, and reads KRS for liquidation, bankruptcy or restructuring. It stores the NIP, any bank accounts you choose to watch, an o

• list_watches

  List contractors monitored for your account, with the last stored status and recent change events. Reads only this server's database. Requires sign-in (OAuth) or an almmity API key.

• remove_watch

  Remove one contractor, identified by NIP, from monitoring for your account. Deletes the watch and stops future alerts. Requires sign-in (OAuth) or an almmity API key.

• payment_audit_report

  Before paying a Polish contractor, verify the NIP and bank account on the MF VAT white list for the payment date, check KRS and VIES, and store a PDF proof of due diligence (MF request IDs, timestamps, findings, SHA-256). Flags the 15 000 PLN rule (art. 117ba of the Tax Ordinance

• check_vat_whitelist

  Query the Ministry of Finance VAT white list (wl-api.mf.gov.pl). Returns the full taxpayer card: name, NIP, VAT status, REGON, KRS, address, every account (groups of 4), registration/denial/removal/restoration dates with legal basis, representatives, authorized clerks, partners,

• get_krs_extract

  Current KRS (National Court Register) extract: name, legal form, address, share capital, board and representation, proxies, PKD codes, liquidation and bankruptcy flags. Reads a public registry and does not change it. Callable without an API key, within the daily per-IP limit.

• find_company

  Combine the MF VAT white list and KRS into one normalized company profile. Provide one of nip, regon or krs. Reads public registries and does not change them. Callable without an API key, within the daily per-IP limit.

• vies_check

  Validate an EU VAT number via the European Commission VIES REST API, for example PL7740001454 or DE811569869. Reads a public registry and does not change it. Callable without an API key, within the daily per-IP limit.

• contractor_due_diligence

  Concise risk summary for a Polish contractor by NIP: VAT status, whitelisted accounts (optionally verify one bank account), and KRS liquidation, bankruptcy or restructuring flags. Reads public registries and does not change them. Callable without an API key, within the daily per-

• validate_ksef_xml

  Validate a KSeF FA(3) invoice XML against the official Ministry of Finance schema (when xmllint and the vendored XSD are available) and against business rules: NIP checksum, totals, bank account checksum, required JST/GV, correction references. Returns Polish error messages. Does

• generate_fa3_xml

  Build a sales invoice XML in the FA(3) schema (kodSystemowy FA (3), variant 3) from seller, buyer and line items. Header VAT is computed from the summed net base of each rate. Does not send the invoice to KSeF and does not store it. Callable without an API key.

• generate_correction_xml

  Build an FA(3) correction invoice (RodzajFaktury KOR). Header amounts are the difference versus the original. Pass beforeLines to emit state-before (StanPrzed) and state-after rows; otherwise lines are the delta. Does not send the invoice to KSeF. Callable without an API key.

• summarize_ksef_invoice

  Parse an FA(3) XML into a short Polish summary: parties, dates, net, VAT, gross, split payment, due date and bank account. Returns a link to the XML-to-PDF viewer. It creates a temporary PDF file on api.almmity.com, reachable by an unguessable link for one hour, then deleted. Not

• build_transfer_title

  Build a Polish bank transfer title that carries one KSeF invoice number or a collective identifier (art. 108g VAT). mode=mpp builds the split-payment message /VAT/IDC/INV/TXT and checks the supplier NIP checksum. Does not send a payment. Callable without an API key.

• calculate_late_interest

  Calculate Polish late-payment interest with the same rates and day count as ksef.almmity.com: commercial (NBP reference + 10 pp), medical public debtor (+ 8 pp) or statutory (reference + 5.5 pp), plus the 40/70/100 EUR compensation converted at the NBP euro rate. Returns the segm

• draft_payment_demand

  Draft a Polish pre-court payment demand (wezwanie do zapłaty) from the same interest calculation as calculate_late_interest, including art. 187 of the Code of Civil Procedure. Returns the text. It creates a temporary PDF file on api.almmity.com, reachable by an unguessable link f

• nip_checksum

  Check the checksum of a Polish NIP (weights 6,5,7,2,3,4,5,6,7). Local arithmetic only. Callable without an API key. Does not look the NIP up in any registry.

• list_cost_invoices

  List cost invoices already stored on the linked KSeF Płatności account: number, seller, amounts, due date, payment status and white-list check. Requires OAuth scope invoices.read. Never ask the user for a KSeF token or a password. Does not download new invoices from KSeF.

• unpaid_due_soon

  List unpaid cost invoices on the linked KSeF Płatności account that are overdue or due within withinDays (default 7, max 90). Requires OAuth scope invoices.read. Never ask for a KSeF token or a password.

• export_transfer_batch

  Prepare an Elixir-0 transfer file for selected cost invoices on the linked KSeF Płatności account. Each account is re-checked on the MF white list for today; unsafe lines are left out of the file. Requires OAuth scope transfers.prepare. The file is not sent to a bank. Never ask f

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 9, 2026

• ! Caution

  Maker matches the repo

  The publisher (api.almmity.com) is not the repo owner (mil0s2); someone else may have listed it

• … 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

• ✓ Pass

  Endpoint responds

  Responded in 636 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 20 tool descriptions and found no hidden instructions to the AI

Compared with others in Online shops & paymentsi

• More stars than 0% of the other 2593 servers in this category
• Published to the registry more recently than 51% of the other 2593 servers in this category
• Basic checks equal to or better than 53% of the other 2593 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

README from the maker

{"mcpServers":{"pl-firmy":{"command":"npx","args":["-y","mcp-remote","https://api.almmity.com/mcp","--header","Authorization: Bearer ${PLF_API_KEY}"],"env":{"PLF_API_KEY":"plf_..."}}}}

claude mcp add --transport http pl-firmy https://api.almmity.com/mcp --header "Authorization: Bearer plf_..."