com.ducktax/ducktax

up checked 2026-11-11T01:37:25.109Z

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Publisher-provided title

Duck Tax

Publisher-provided description

Check micro-entity company accounts: raw figures in, validated balance sheet and deadlines out.

Summary by lookupd

Derives and validates UK micro-entity balance sheets, checks filing deadlines and extensions, and looks up companies on public registers.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http ducktax https://ducktax.com/api/mcp

Codex, remote (streamable-http)

codex mcp add ducktax --url https://ducktax.com/api/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "ducktax": {
      "url": "https://ducktax.com/api/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (20 tools)

Publisher-provided text

• check_accounts Derive a small-company balance sheet (micro-entity, in UK terms) from raw figures and validate it. Returns the derived sheet for the current and prior year, the
• dormant_figures The complete set of figures for a dormant company: share capital, the matching cash, and zeros everywhere else. The register says when the last accounts were fi
• totals_to_figures Turn categorised bank-statement totals into balance sheet figures, applying the rules that stop an import lying: only income categories reach turnover, only exp
• late_filing_penalty What missing a Companies House accounts deadline costs. Given the due date, returns days remaining or overdue, the penalty band already incurred, and what the n
• list_jurisdictions The countries this server knows about and what it can actually do in each: which have a real accounts engine, which registers can be searched or looked up, the
• sample_accounts A real worked example: nil turnover, a director loan, a near-empty bank account, the simplest accounts the UK regime permits. Use it to demonstrate check_accoun
• lookup_company Look a company up on its public register (Companies House for GB, ABN Lookup for AU) by its registered number. Returns the full public record: name, status, reg
• search_companies Find a company by name on its public register and get back its registered number, status and address. This is how you reach lookup_company when the person only
• get_prior_year_figures Read last year's figures out of the company's last filed accounts at Companies House, ready to drop into the *Prior fields of check_accounts or save_filing. Sav
• explain_accounts A plain-English reading of a set of figures, written for a director who is not an accountant: what the derived balance sheet says about the company and anything
• categorise_transactions Categorise bank-statement transaction descriptions into the fixed vocabulary this product maps to balance sheet lines (sales, software, owner-in, …). Send descr
• check_filing_extension Whether a company can still apply to its registrar for more time to file, how many days are left to apply, and what being late costs if that window is missed. T
• draft_extension_reason Turn a short factual account of what went wrong into the reason text for an application for more time to file accounts, framed in the terms the registrar actual
• list_saved_filings The user's saved filings, most recently touched first, with every figure in major units. This is the same list the website dashboard shows. Start here when aske
• save_filing Save a set of figures to the user's account, or update a saved one by passing its id from list_saved_filings. Figures in major units. The filing is saved even w
• delete_filing Delete one saved filing by id, permanently. Confirm with the person before calling this; there is no undo and no trash.
• track_company_deadlines Watch a company by its register number and get reminded before its filing deadlines. Which channels are actually available depends on the server: the reply repo
• list_tracked_companies Every company this user gets deadline reminders about, including the ones implied by their saved filings. Shows the next accounts deadline and days remaining wh
• untrack_company_deadlines Stop sending deadline reminders about a company. This mutes rather than forgets, which is the only thing that holds: a company implied by a saved filing would o
• server_status What this deployment can actually do right now: which integrations are configured, whether your token is valid, and how much of each daily quota you have left.

Details

• Version: 1.0.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 300 ms
• First indexed: 2026-11-01T08:53:47.565Z
• Last seen in registry: 2026-11-01T08:53:47.565Z
• Website: https://ducktax.com

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