# A.X.E.L Filing (public tools) (remote · portal.axel.trade)

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

- Trust score: 82/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `portal.axel.trade`: 82/100 (this document), [markdown](https://verifymcp.io/servers/trade-axel-filing-public/api-mcp-public.md), [page](https://verifymcp.io/servers/trade-axel-filing-public/api-mcp-public)

## Channel facts

- Endpoint: `https://portal.axel.trade/api/mcp/public`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 83/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 68/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 5531 tokens (~614/item across 9 items; 7 tools + 2 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 80/100
  - Stability observed for 24 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 88/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 58% of tool parameters carry a description.
  - Structured output schemas are declared (14% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 9 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-03-26; the latest is 2026-07-28.
  - Supports UI / widget rendering.

## Install

### How do I install the A.X.E.L Filing (public tools) MCP server?

A.X.E.L Filing (public tools) is a hosted endpoint at https://portal.axel.trade/api/mcp/public, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

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

### Cursor

```json
{
  "mcpServers": {
    "trade-axel-filing-public": {
      "url": "https://portal.axel.trade/api/mcp/public"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "trade-axel-filing-public": {
      "type": "http",
      "url": "https://portal.axel.trade/api/mcp/public"
    }
  }
}
```

### Codex

```toml
[mcp_servers.trade-axel-filing-public]
url = "https://portal.axel.trade/api/mcp/public"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "trade-axel-filing-public": {
      "type": "remote",
      "url": "https://portal.axel.trade/api/mcp/public",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add trade-axel-filing-public --url 'https://portal.axel.trade/api/mcp/public' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  trade-axel-filing-public:
    url: "https://portal.axel.trade/api/mcp/public"
```

### Netclaw

```json
{
  "McpServers": {
    "trade-axel-filing-public": {
      "Transport": "http",
      "Url": "https://portal.axel.trade/api/mcp/public"
    }
  }
}
```

### Vellum

```bash
assistant mcp add trade-axel-filing-public -t streamable-http -u 'https://portal.axel.trade/api/mcp/public'
```

### Other

```json
{
  "mcpServers": {
    "trade-axel-filing-public": {
      "type": "http",
      "url": "https://portal.axel.trade/api/mcp/public"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-04 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 81, 0)

- [security] The server rewrote its instructions, which are the text every model session reads

### 2026-11-02 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-27 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-25 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-23 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (7)

### `ct600_filing_guide` (~67 tokens)

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.

### `lookup_uk_company` (~47 tokens)

Look up a UK company at Companies House by company number: name, status, registered office, next accounts period, and a quick fit check.

Input parameters:

- `companyNumber` (string, required)

### `check_ct600_eligibility` (~259 tokens)

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.

Input parameters:

- `averageEmployees` (number)
- `balanceSheetTotal` (number)
- `claimsRandD` (boolean)
- `dormant` (boolean)
- `filingTypes` (string): What the customer wants to file. Only matters for periodOver12Months: a period of account over 12 months rules out a CT600 (which covers at most 12 months) but NOT a set of accounts, which Companies…
- `hasChargeableGains` (boolean)
- `hasPropertyIncome` (boolean)
- `overdrawnDirectorsLoan` (boolean)
- `partOfGroup` (boolean)
- `periodOver12Months` (boolean)
- `singleUkTrade` (boolean)
- `turnover` (number)

### `uk_company_late_filing_penalties` (~236 tokens)

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.

Input parameters:

- `accountsDeadline` (string): Companies House accounts deadline, ISO date
- `accountsLateLastYear` (boolean): The previous year's accounts were also late: the Companies House penalty doubles.
- `ct600Deadline` (string): CT600 filing deadline (12 months after the end of the accounting period), ISO date
- `ct600ThirdLateInARow` (boolean): This is the third late CT600 in a row: each fixed penalty is GBP 1,000 instead of GBP 200.
- `filedOn` (string): Date the filing arrives, ISO date. Defaults to today.
- `unpaidTax` (number): Corporation tax still unpaid, in POUNDS, to estimate the 10% tax-geared penalties at 6 and 12 months.

### `estimate_uk_self_assessment` (~370 tokens)

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.

Input parameters:

- `becameDirectorDuringYear` (boolean): Became a director part-way through the tax year. Refused: a shorter NI earnings period needs HMRC's directors' calculator.
- `dividends` (number): Total dividends received in the tax year, from any company
- `eligibility` (object): Answer true for any that apply; each is refused as out of scope (refer to an accountant).
- `income` (object): Income in ONE personal tax year (6 April to 5 April), all in POUNDS. Ask; do not guess.
- `overStatePensionAge` (boolean): Over State Pension age: no employee National Insurance on salary (the company still pays employer NI)
- `payroll` (object): For the Employment Allowance (up to £10,500 of employer NI). HMRC: a company with only one director cannot claim if that director is the only employee liable for employer NI. Ask both.
- `postgraduateLoan` (boolean)
- `region` (string, required): Where the person lives for income tax: rUK (England or Northern Ireland), scotland or wales. Scottish rates differ. Ask.
- `studentLoanPlans` (array): Undergraduate student loan plans being repaid
- `taxYear` (string, required)

### `uk_director_tax_year` (~574 tokens)

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.

Input parameters:

- `businessInAssociation` (boolean): Do the companies share premises, staff, equipment or customers? If so HMRC adds the pay from them together for Class 1 NI (one set of thresholds). Ask when more than one company pays a salary.
- `companies` (array): For a person with MORE THAN ONE company: each company they draw salary or dividends from. Their Self Assessment is then worked out once on all of it, each company's corporation tax uses the associate…
- `director` (object, required)
- `figures` (object): The return figures, all in POUNDS. periodStart/periodEnd are ISO dates.
- `filingId` (string): A saved CT600 draft to take the company figures from (needs a signed-in account)
- `useProfile` (boolean): Signed in only: work out the person's WHOLE position from their saved profile (their Tax cockpit): every company on their account with its latest figures, plus companies not on A.X.E.L and income fro…

### `compute_ct600` (~63 tokens)

Compute the corporation tax position from figures (stateless, nothing stored): tax due, taxable profit, marginal relief, losses, CT600 box values.

Input parameters:

- `figures` (object, required): The return figures, all in POUNDS. periodStart/periodEnd are ISO dates.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/trade-axel-filing-public/api-mcp-public#diagnostics

## Score history

- 2026-11-05: 82
- 2026-11-04: 82
- 2026-11-03: 81
- 2026-11-02: 81
- 2026-11-01: 80
- 2026-10-31: 80
- 2026-10-30: 79
- 2026-10-29: 79
- 2026-10-28: 78
- 2026-10-27: 78
- 2026-10-26: 77
- 2026-10-25: 77
- 2026-10-24: 76
- 2026-10-23: 76
- 2026-10-22: 75
- 2026-10-21: 75
- 2026-10-20: 74
- 2026-10-19: 74
- 2026-10-18: 74
- 2026-10-17: 73
- 2026-10-16: 73
- 2026-10-15: 72
- 2026-10-14: 72
- 2026-10-13: 71
- 2026-10-12: 70

## Common questions

### What is the A.X.E.L Filing (public tools) MCP server?

A.X.E.L Filing (public tools) is an MCP server listed in the public MCP registry as trade.axel/filing-public. UK company lookup, filing deadlines, late penalties and Corporation Tax maths. No account. This page covers its hosted endpoint (https://portal.axel.trade/api/mcp/public).

### Is the A.X.E.L Filing (public tools) MCP server safe to use?

A.X.E.L Filing (public tools) scores 82 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the A.X.E.L Filing (public tools) MCP server expose?

A.X.E.L Filing (public tools) exposes 7 tools: ct600_filing_guide, lookup_uk_company, check_ct600_eligibility, uk_company_late_filing_penalties, estimate_uk_self_assessment, and 2 more. Their descriptions and schemas cost roughly 1,616 tokens of context every time the server is loaded.

### Does the A.X.E.L Filing (public tools) MCP server require authentication?

No. We connected to A.X.E.L Filing (public tools) without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the A.X.E.L Filing (public tools) MCP server still maintained?

A.X.E.L Filing (public tools) is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://portal.axel.trade/api/mcp/public
- Website: https://ct600.axel.trade/api
- Changelog RSS feed: https://verifymcp.io/servers/trade-axel-filing-public/api-mcp-public.xml
- Changelog JSON feed: https://verifymcp.io/servers/trade-axel-filing-public/api-mcp-public.json
- HTML version of this page: https://verifymcp.io/servers/trade-axel-filing-public/api-mcp-public