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TAX & ACCOUNTING

firma.de

German tools for founders: formation costs, notary and tax adviser fees, taxes, holdings, e-invoices.

Visit official website ↗Tool + MCPConnect to Claude or ChatGPTLast checked: 2026-11-12

Not verified · Tax & accounting

What it helps with

  • Formation costs
  • Notary
  • Tax adviser fees
  • Taxes

Best for

Tax and accounting teams.

Tax & audit ↗

Sector fit

Accounting, audit & tax

Task and sector fit are editorial suggestions, not vendor certifications.

Pricing not verified

Pricing & access

Pricing has not been reviewed for this listing. Check the vendor's page.

Free access

Not verified.

Check pricing on the vendor's site ↗

Prices reflect the reviewed source and billing basis. Taxes, regional pricing, seats, licenses, and consumption may affect the total.

Works with your setup?

Platforms

Not verified

Published integrations

Not verified in this snapshot

Data considerations

Review vendor data retention and training terms before uploading sensitive information.

This is a review prompt, not an independent privacy or compliance certification.

Limitations to consider

  • Capabilities come from the vendor's MCP Registry entry and have not been independently tested.

Evidence & verification

Description comes from the vendor's entry in the official MCP Registry (de.firma/rechner). The vendor's site was reached on 2026-11-12. Not yet reviewed by an editor; pricing, integrations and platforms have not been reviewed.

Official website ↗ · Product existence · 2026-11-12MCP Registry entry ↗ · Description and MCP server address · 2026-11-12

Connect firma.de to your AI assistant

An MCP server lets assistants such as Claude or ChatGPT use firma.de directly. You connect straight to the vendor's server; ToolGrail never sees your account.

Remote server · no sign-in needed to connect

Server addresshttps://www.firma.de/api/mcp/

What it can do
German tools for founders: formation costs, notary and tax adviser fees, taxes, holdings, e-invoices.
Sign-in
Not needed to connect. Some actions may still need an account.
Cost
Not verified. What you can do through it may depend on your firma.de plan, so check that your plan includes MCP or API access.
How we know it's official
Published in the official MCP Registry as de.firma/rechner, under the vendor's verified namespace. Checked 2026-11-12.
Claude

Go to Customize › Connectors, select + Add, then Add custom connector. Enter a name, paste the server address and select Continue. Turn it on in a chat from the + menu under Connectors. Free plans can add one custom connector; on Team and Enterprise an owner adds it for the organisation.

Claude help ↗
ChatGPT

Custom MCP servers are available on ChatGPT Business, Enterprise and Edu, on the web. An admin or owner, or an authorised member on Enterprise and Edu, goes to Plugins, selects + then Add custom MCP server, pastes the server address, sets up authentication and accepts the risk notice.

OpenAI help ↗
Other assistants and editors

Add a remote MCP server using this address. Clients that support Streamable HTTP, the current MCP transport, accept it directly. Menu names vary by client.

MCP availability, sign-in and plan requirements can change. How we find and check servers.

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