A.X.E.L Filing (public tools)
UK company lookup, filing deadlines, late penalties and Corporation Tax maths. No account.
Connect it
Settings → Connectors → Add custom connector
URL: https://portal.axel.trade/api/mcp/publicSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://portal.axel.trade/api/mcp/public{
"mcpServers": {
"filing-public": {
"url": "https://portal.axel.trade/api/mcp/public"
}
}
}claude mcp add --transport http filing-public https://portal.axel.trade/api/mcp/public{
"servers": {
"filing-public": {
"type": "http",
"url": "https://portal.axel.trade/api/mcp/public"
}
}
}7 tools, verified live
ct600_filing_guideread-onlyREAD 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.
lookup_uk_companyread-onlyLook up a UK company at Companies House by company number: name, status, registered office, next accounts period, and a quick fit check.
check_ct600_eligibilityread-onlyCheck 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.
uk_company_late_filing_penaltiesread-onlyLate 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.
estimate_uk_self_assessmentread-onlyEstimate 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
uk_director_tax_yearread-onlyThe 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 profi
compute_ct600read-onlyCompute the corporation tax position from figures (stateless, nothing stored): tax due, taxable profit, marginal relief, losses, CT600 box values.
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