# Capitol Ledger (pypi · capitol-ledger-mcp)

Read-only House stock disclosures and synthetic portfolio research. Approved pilot key required.

- Trust score: 76/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-24

## Components

- pypi · `capitol-ledger-mcp`: 76/100 (this document), [markdown](https://verifymcp.io/servers/joalbrecht-capitol-ledger-mcp/capitol-ledger-mcp.md), [page](https://verifymcp.io/servers/joalbrecht-capitol-ledger-mcp/capitol-ledger-mcp)

## Channel facts

- Registry: `pypi`
- Package: `capitol-ledger-mcp`
- Version: `0.1.0`
- 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 2026-10-24.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs setuptools.build_meta at install time, a recognised build step with no custom scripting around it.
  - 0 of 28 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to joalbrecht/capitol-ledger-mcp).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 0 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 61/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 264 tokens (~88/item across 3 items; 3 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% 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 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.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the Capitol Ledger MCP server?

Capitol Ledger runs locally as a PyPI package, launched with uvx capitol-ledger-mcp. 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 joalbrecht-capitol-ledger-mcp -- uvx capitol-ledger-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "joalbrecht-capitol-ledger-mcp": {
      "command": "uvx",
      "args": [
        "capitol-ledger-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "joalbrecht-capitol-ledger-mcp": {
      "command": "uvx",
      "args": [
        "capitol-ledger-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add joalbrecht-capitol-ledger-mcp -- uvx capitol-ledger-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "joalbrecht-capitol-ledger-mcp": {
      "type": "local",
      "command": [
        "uvx",
        "capitol-ledger-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add joalbrecht-capitol-ledger-mcp --command uvx --arg capitol-ledger-mcp
```

### Hermes

```yaml
mcp_servers:
  joalbrecht-capitol-ledger-mcp:
    command: "uvx"
    args: ["capitol-ledger-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "joalbrecht-capitol-ledger-mcp": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "capitol-ledger-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add joalbrecht-capitol-ledger-mcp -t stdio -c uvx -a capitol-ledger-mcp
```

### Other

```json
{
  "mcpServers": {
    "joalbrecht-capitol-ledger-mcp": {
      "command": "uvx",
      "args": [
        "capitol-ledger-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-10-24 (score 76, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-23 (score 61)

First indexed and scored.

## MCP tools (3)

### `search_disclosures` (~99 tokens)

Search House disclosures; dates use filing availability. Return source links and amount ranges.

Default window is 30 days. Maximum limit is 100. Reuse returned as_of when paging.
Timestamps must include a UTC offset; side is purchase, sale, or exchange.

Input parameters:

- `as_of`
- `available_after`
- `limit` (integer)
- `offset` (integer)
- `side`
- `ticker`

### `get_portfolio` (~66 tokens)

Get a saved synthetic disclosure ledger's opening/closing allocations and audit metadata.

Defaults to latest saved completed period, of any cadence. Pin report_id for reproducibility.
This is not actual member holdings or the executable strategy portfolio.

Input parameters:

- `as_of`
- `report_id`

### `get_portfolio_changes` (~54 tokens)

Get purchases, sales, and weight changes for a saved report period; inspect coverage warnings.

Pass the portfolio result's report_id to use exactly the same period.

Input parameters:

- `as_of`
- `report_id`

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/joalbrecht-capitol-ledger-mcp/capitol-ledger-mcp#diagnostics

## Score history

- 2026-10-24: 76
- 2026-10-23: 61

## Common questions

### What is the Capitol Ledger MCP server?

Capitol Ledger is an MCP server listed in the public MCP registry as io.github.joalbrecht/capitol-ledger-mcp. Read-only House stock disclosures and synthetic portfolio research. Approved pilot key required. This page covers its PyPI package (capitol-ledger-mcp).

### Is the Capitol Ledger MCP server safe to use?

Capitol Ledger scores 76 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 24 October 2026. 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 Capitol Ledger MCP server expose?

Capitol Ledger exposes 3 tools: search_disclosures, get_portfolio, get_portfolio_changes. Their descriptions and schemas cost roughly 219 tokens of context every time the server is loaded.

### Is the Capitol Ledger MCP server still maintained?

Capitol Ledger is still listed as active in the MCP registry. We last reached this channel on 24 October 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 Capitol Ledger MCP server under?

Capitol Ledger 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

- PyPI project: https://pypi.org/project/capitol-ledger-mcp/
- Socket report: https://socket.dev/pypi/package/capitol-ledger-mcp
- Repository: https://github.com/joalbrecht/capitol-ledger-mcp
- Website: https://capitol-ledger.com/agents
- Changelog RSS feed: https://verifymcp.io/servers/joalbrecht-capitol-ledger-mcp/capitol-ledger-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/joalbrecht-capitol-ledger-mcp/capitol-ledger-mcp.json
- HTML version of this page: https://verifymcp.io/servers/joalbrecht-capitol-ledger-mcp/capitol-ledger-mcp