# Fca Shorts (npm · @pipeworx/mcp-fca-shorts)

FCA UK short-position disclosures — the Financial Conduct Authority (fca.org.uk) publishes a daily…

- Trust score: 83/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `gateway.pipeworx.io`: 77/100, [markdown](https://verifymcp.io/servers/pipeworx-io-fca-shorts/fca-shorts-mcp.md), [page](https://verifymcp.io/servers/pipeworx-io-fca-shorts/fca-shorts-mcp)
- npm · `@pipeworx/mcp-fca-shorts`: 83/100 (this document), [markdown](https://verifymcp.io/servers/pipeworx-io-fca-shorts/pipeworx-mcp-fca-shorts.md), [page](https://verifymcp.io/servers/pipeworx-io-fca-shorts/pipeworx-mcp-fca-shorts)

## Channel facts

- Registry: `npm`
- Package: `@pipeworx/mcp-fca-shorts`
- Version: `0.2.1`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - No production dependencies, so there is no dependency health to assess.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-fca-shorts).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 3 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 570 tokens (~190/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Fca Shorts MCP server?

Fca Shorts runs locally as an npm package, launched with npx -y @pipeworx/mcp-fca-shorts. 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 pipeworx-io-fca-shorts -- npx -y @pipeworx/mcp-fca-shorts
```

### Cursor

```json
{
  "mcpServers": {
    "pipeworx-io-fca-shorts": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-fca-shorts"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "pipeworx-io-fca-shorts": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-fca-shorts"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add pipeworx-io-fca-shorts -- npx -y @pipeworx/mcp-fca-shorts
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "pipeworx-io-fca-shorts": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@pipeworx/mcp-fca-shorts"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add pipeworx-io-fca-shorts --command npx --arg -y --arg @pipeworx/mcp-fca-shorts
```

### Hermes

```yaml
mcp_servers:
  pipeworx-io-fca-shorts:
    command: "npx"
    args: ["-y", "@pipeworx/mcp-fca-shorts"]
```

### Netclaw

```json
{
  "McpServers": {
    "pipeworx-io-fca-shorts": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@pipeworx/mcp-fca-shorts"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add pipeworx-io-fca-shorts -t stdio -c npx -a -y @pipeworx/mcp-fca-shorts
```

### Other

```json
{
  "mcpServers": {
    "pipeworx-io-fca-shorts": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-fca-shorts"
      ]
    }
  }
}
```

## 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 83, +1)

- [functional regression] Security disclosure: unverified → fail

### 2026-11-03 (score 82, 0)

- [functional regression] Security disclosure: fail → unverified

### 2026-11-02 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 81, +1)

- [security regression] Tool safety: pass → unverified
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional regression] Tool coverage: 100 → unverified
- [functional regression] Capabilities: pass → unverified
- [functional improvement] Stability: unverified → 0.10
- [functional] First check of Schema quality: unverified
- [functional] Package version: 0.2.0 → 0.2.1

### 2026-10-31 (score 80, 0)

- [functional regression] Security disclosure: unverified → fail

### 2026-10-29 (score 80)

First indexed and scored.

## MCP tools (3)

### `fca_short_positions` (~179 tokens)

Current FCA-disclosed net short position(s) for an issuer, from the daily "aggregated-current-net-short-positions" file (fca.org.uk). Data is AGGREGATED AND ANONYMISED PER ISSUER under the UK Short Selling Regulations 2025 -- one row per issuer, no position-holder names. Filter by issuer name (substring, case-insensitive) and/or ISIN; at least one is required. Example: fca_short_positions({ issuer: "Kingfisher" }) or fca_short_positions({ isin: "GB0033195214" }).

Input parameters:

- `isin` (string): Exact ISIN, e.g. "GB0033195214".
- `issuer` (string): Issuer/company name, or a substring of it (case-insensitive), e.g. "Kingfisher".

### `fca_largest_shorts` (~106 tokens)

The N issuers with the largest currently FCA-disclosed net short positions market-wide, sorted descending by aggregated position %. Reads the same daily "aggregated-current-net-short-positions" file as fca_short_positions -- aggregated per issuer, no holder names. Example: fca_largest_shorts({ top_n: 10 }).

Input parameters:

- `top_n` (number): How many issuers to return, most-shorted first. Default 20, max 100.

### `fca_short_changes` (~229 tokens)

Per-issuer short-position deltas: compares each issuer's latest CURRENT disclosed position against the most recent prior value shown for that ISIN in the HISTORIC disclosures file, i.e. what moved and by how much since the previous reported position. Filter to one issuer/ISIN, or omit both to get the largest market-wide moves (optionally only since a given date). Example: fca_short_changes({ isin: "GB00B01QGK86" }) or fca_short_changes({ since: "2026-09-15", top_n: 15 }).

Input parameters:

- `isin` (string): Exact ISIN to restrict to.
- `issuer` (string): Issuer/company name substring (case-insensitive) to restrict to.
- `since` (string): ISO date (YYYY-MM-DD). Only include issuers whose current position date is on or after this date.
- `top_n` (number): When no issuer/ISIN filter is given, how many of the largest moves to return, ranked by absolute change. Default 20, max 100.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/pipeworx-io-fca-shorts/pipeworx-mcp-fca-shorts#diagnostics

## Score history

- 2026-11-05: 83
- 2026-11-04: 83
- 2026-11-03: 82
- 2026-11-02: 82
- 2026-11-01: 81
- 2026-10-31: 80
- 2026-10-30: 80
- 2026-10-29: 80

## Common questions

### What is the Fca Shorts MCP server?

Fca Shorts is an MCP server listed in the public MCP registry as io.github.pipeworx-io/fca-shorts. FCA UK short-position disclosures, the Financial Conduct Authority (fca.org.uk) publishes a daily… This page covers its npm package (@pipeworx/mcp-fca-shorts).

### Is the Fca Shorts MCP server safe to use?

Fca Shorts scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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 Fca Shorts MCP server expose?

Fca Shorts exposes 3 tools: fca_short_positions, fca_largest_shorts, fca_short_changes. Their descriptions and schemas cost roughly 514 tokens of context every time the server is loaded.

### Is the Fca Shorts MCP server still maintained?

Fca Shorts 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.

### What licence is the Fca Shorts MCP server under?

Fca Shorts declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/@pipeworx/mcp-fca-shorts
- Socket report: https://socket.dev/npm/package/@pipeworx/mcp-fca-shorts
- Repository: https://github.com/pipeworx-io/mcp-fca-shorts
- Website: https://pipeworx.io/packs/fca-shorts
- Changelog RSS feed: https://verifymcp.io/servers/pipeworx-io-fca-shorts/pipeworx-mcp-fca-shorts.xml
- Changelog JSON feed: https://verifymcp.io/servers/pipeworx-io-fca-shorts/pipeworx-mcp-fca-shorts.json
- HTML version of this page: https://verifymcp.io/servers/pipeworx-io-fca-shorts/pipeworx-mcp-fca-shorts