Skip to content

A.X.E.L Filing (public tools)

by axel.trade · remote · no sign-in to list tools · v1.0.0 · published by trade.axel

UK company lookup, filing deadlines, late penalties and Corporation Tax maths. No account.

Changes · 5
CompareRegistry entry

7 tools: 5 change things and 2 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http filing-public https://portal.axel.trade/api/mcp/public

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

7 tools

Changes things 5Claude Code: ask
  • check_ct600_eligibilityCheck whether a company fits this tool (micro-entity limits, single UK trade, no groups/R&D/gains/property).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Check whether a company fits this tool (micro-entity limits, single UK trade, no groups/R&D/gains/property). An overdrawn director loan is supported: the return carries a CT600A. Money in POUNDS.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • compute_ct600Compute the corporation tax position from figures (stateless, nothing stored): tax due, taxable profit, marginal relief, losses, CT600 box values.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Compute the corporation tax position from figures (stateless, nothing stored): tax due, taxable profit, marginal relief, losses, CT600 box values.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • estimate_uk_self_assessmentEstimate one person's UK Self Assessment for one tax year (2025-26 or 2026-27): income tax on salary, dividends, self-employment and interest, Class 4, student loans, payments on a…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Estimate one person's UK Self Assessment for one tax year (2025-26 or 2026-27): income tax on salary, dividends, self-employment and interest, Class 4, student loans, payments on account, and Class 1 National Insurance on a salary from the person's own company. Uses the same engine as A.X.E.L Filing's returns, which matches HMRC's own test cases. An estimate only: nothing is saved or filed. Never ask for a UTR or National Insurance number.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • uk_company_late_filing_penaltiesLate filing penalties for a UK company's accounts (Companies House) and CT600 (HMRC): what is owed if filed on a given date, and the full schedule of dates when each penalty applie…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Late filing penalties for a UK company's accounts (Companies House) and CT600 (HMRC): what is owed if filed on a given date, and the full schedule of dates when each penalty applies. Use with lookup_uk_company, which gives the accounts deadline. Dates are ISO (YYYY-MM-DD); filedOn defaults to today.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • uk_director_tax_yearThe director's whole year in one view: the company's corporation tax AND the director's own Self Assessment, side by side.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The director's whole year in one view: the company's corporation tax AND the director's own Self Assessment, side by side. Give either filingId (a saved CT600 draft, signed in) or the company's figures, plus the director's salary per tax year and each dividend with the date it was PAID (dividends are taxed in the tax year paid, which may differ from the company's year). Returns the company's profit, tax and profit after tax, each personal tax year's Self Assessment, Class 1 National Insurance on the salary (employee and employer, paid through payroll, with the Employment Allowance where it applies), payments on account, every due date, and the combined total. For what-ifs, call once per scenario and compare them side by side; when a scenario changes the salary, pass figures with staffCosts adjusted (salary plus employer NI) so corporation tax reflects it (see the guide). With MORE THAN ONE company, ask about every company they draw from and pass `companies` (or, signed in, `useProfile: true` to start from their saved answers): the Self Assessment covers all of it once, associated companies share the corporation tax limits, connected companies share one Employment Allowance, and NI can add the pay together. The user decides; present options, not a recommendation. Never ask for a UTR or National Insurance number.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
Only reads 2Claude Code: allow
  • ct600_filing_guideREAD THIS FIRST.No findings

    Why it is in this group

    • The description's first verb is "read": a word for reading.
    Description, as the server wrote it
    READ THIS FIRST. How to prepare a CT600 with this server: which companies qualify, the order to gather figures in, what the words mean (micro-entity, filleted accounts, the declaration), and which cases to refer to an accountant instead. Takes no arguments.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • lookup_uk_companyLook up a UK company at Companies House by company number: name, status, registered office, next accounts period, and a quick fit check.No findings

    Why it is in this group

    • The name "lookup_uk_company" says "lookup": a word for reading.
    Description, as the server wrote it
    Look up a UK company at Companies House by company number: name, status, registered office, next accounts period, and a quick fit check.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http filing-public https://portal.axel.trade/api/mcp/public

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__filing-public__ct600_filing_guide",
      "mcp__filing-public__lookup_uk_company"
    ],
    "ask": [
      "mcp__filing-public__check_ct600_eligibility",
      "mcp__filing-public__uk_company_late_filing_penalties",
      "mcp__filing-public__estimate_uk_self_assessment",
      "mcp__filing-public__uk_director_tax_year",
      "mcp__filing-public__compute_ct600"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as filing-public. Review it before you use it.