# com.bellwethermetrics/bellwether-mcp (npm · bellwether-mcp)

Live prediction market data from Polymarket and Kalshi with VWAP pricing and reportability.

- Trust score: 70/100 (medium)
- Change this week: +24
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `bellwether-mcp`: 70/100 (this document), [markdown](https://verifymcp.io/servers/com-bellwethermetrics-bellwether-mcp/bellwether-mcp.md), [page](https://verifymcp.io/servers/com-bellwethermetrics-bellwether-mcp/bellwether-mcp)

## Channel facts

- Registry: `npm`
- Package: `bellwether-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 2026-08-03.

- **Supply Chain Security**: 86/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 149 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 81/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 409 tokens (~81/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add com-bellwethermetrics-bellwether-mcp -- npx -y bellwether-mcp
```

### Codex

```bash
codex mcp add com-bellwethermetrics-bellwether-mcp -- npx -y bellwether-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-bellwethermetrics-bellwether-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "bellwether-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-bellwethermetrics-bellwether-mcp --command npx --arg -y --arg bellwether-mcp
```

### Hermes

```yaml
mcp_servers:
  com-bellwethermetrics-bellwether-mcp:
    command: "npx"
    args: ["-y", "bellwether-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "com-bellwethermetrics-bellwether-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "bellwether-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.

### 2026-08-03 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-02 (score 69, +48)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [functional improvement] Stability: unverified → 0.23
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] License: unverified → pass
- [functional improvement] Schema quality: unverified → excellent
- [functional improvement] Maintenance: unverified → pass
- [functional] Licence: MIT

### 2026-08-01 (score 21, −7)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-31 (score 28, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-30 (score 46, +19)

- [functional regression] Dependency health: partial → unverified
- [functional improvement] Tool coverage: unverified → 100

### 2026-07-28 (score 27, −19)

- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Dependency health: unverified → partial
- [functional] First check of Schema quality: unverified

### 2026-07-27 (score 46)

First indexed and scored.

## MCP tools (5)

### `search_markets` (~120 tokens)

Search active political prediction markets by topic or keyword. Returns matching markets with tickers, titles, and volume. Use this tool first when you need to find a market on a topic — then pass the ticker to get_market for live price data.

Input parameters:

- `category` (string): Filter by political category
- `limit` (integer): Maximum results to return. Default 10, max 50
- `query` (string, required): Topic or keyword to search for. Examples: "senate 2026", "federal reserve", "trump tariffs"

### `get_market` (~85 tokens)

Get live price, volume-weighted average price (VWAP), and data quality tier for a specific market. Accepts a Bellwether ticker or slug. Always check reportability before citing a price in published content.

Input parameters:

- `ticker` (string, required): Bellwether ticker or slug. Example: BWR-DEM-CONTROL-HOUSE-CERTIFIED-ANY-2026

### `get_top_markets` (~68 tokens)

Get the most actively traded prediction markets right now, optionally filtered by political category. Useful for discovering what political questions markets are currently focused on.

Input parameters:

- `category` (string): Filter by political category
- `limit` (integer): Maximum results to return. Default 10, max 50

### `get_platform_spread` (~65 tokens)

Compare prices between Kalshi and Polymarket for a matched market. Returns the spread in cents and which platform is pricing higher. Only works for cross-platform matched markets (is_matched: true).

Input parameters:

- `ticker` (string, required): Bellwether ticker for a matched market

### `get_reportability` (~71 tokens)

Check whether a prediction market is safe to cite in published content. Returns a reportability tier (Reportable, Caution, or Fragile) and plain-English editorial guidance. Always call this before citing a market price in an article or report.

Input parameters:

- `ticker` (string, required): Bellwether ticker or slug

## Diagnostics

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

## Score history

- 2026-08-03: 70
- 2026-08-02: 69
- 2026-08-01: 21
- 2026-07-31: 28
- 2026-07-30: 46
- 2026-07-28: 27
- 2026-07-27: 46

## Links

- npm package: https://www.npmjs.com/package/bellwether-mcp
- Socket report: https://socket.dev/npm/package/bellwether-mcp
- Repository: https://github.com/elliotjames-paschal/bellwether-platform
- Changelog RSS feed: https://verifymcp.io/servers/com-bellwethermetrics-bellwether-mcp/bellwether-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-bellwethermetrics-bellwether-mcp/bellwether-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/com-bellwethermetrics-bellwether-mcp/bellwether-mcp