# Marketdata App (npm · @pipeworx/mcp-marketdata-app)

Market Data App MCP — wraps the Market Data App API (marketdata.app)

- 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 · `gateway.pipeworx.io`: 69/100, [markdown](https://verifymcp.io/servers/pipeworx-io-marketdata-app/marketdata-app-mcp.md), [page](https://verifymcp.io/servers/pipeworx-io-marketdata-app/marketdata-app-mcp)
- npm · `@pipeworx/mcp-marketdata-app`: 82/100 (this document), [markdown](https://verifymcp.io/servers/pipeworx-io-marketdata-app/pipeworx-mcp-marketdata-app.md), [page](https://verifymcp.io/servers/pipeworx-io-marketdata-app/pipeworx-mcp-marketdata-app)

## Channel facts

- Registry: `npm`
- Package: `@pipeworx/mcp-marketdata-app`
- 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-marketdata-app).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 2 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 62/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 973 tokens (~243/item across 4 items; 4 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 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 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 Marketdata App MCP server?

Marketdata App runs locally as an npm package, launched with npx -y @pipeworx/mcp-marketdata-app. 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-marketdata-app -- npx -y @pipeworx/mcp-marketdata-app
```

### Cursor

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

### VS Code

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

### Codex

```bash
codex mcp add pipeworx-io-marketdata-app -- npx -y @pipeworx/mcp-marketdata-app
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add pipeworx-io-marketdata-app --command npx --arg -y --arg @pipeworx/mcp-marketdata-app
```

### Hermes

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

### Netclaw

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

### Vellum

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

### Other

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

## 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.

### 2026-11-05 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-04 (score 81, 0)

- [functional regression] Security disclosure: fail → unverified

### 2026-11-03 (score 81, +16)

- [security improvement] Malware scan: unverified → pass

### 2026-11-02 (score 65, −15)

- [security regression] Malware scan: pass → unverified
- [functional] Package version: 0.2.0 → 0.2.1

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

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 79)

First indexed and scored.

## MCP tools (4)

### `marketdata_option_chain` (~349 tokens)

Get the full option chain for an underlying stock/ETF/index, with strike, bid/ask/mid/last, volume, open interest, IV and greeks (delta/gamma/theta/vega). Filter by expiration, days-to-expiration, delta, side, and liquidity. Example: marketdata_option_chain({ underlyingSymbol: "AAPL", expiration: "2026-01-16", side: "call", minOpenInterest: 100, _apiKey: "your-key" })

Input parameters:

- `_apiKey` (string, required): Market Data App API token. Get one at https://www.marketdata.app/pricing/ (auth docs: https://www.marketdata.app/docs/api/authentication)
- `date` (string): Historical snapshot date (YYYY-MM-DD) for a past chain. Optional (defaults to live).
- `delta` (string): Delta-based strike selection, e.g. "0.30" or a range ".20-.40". Optional.
- `dte` (number): Filter to contracts with this many days to expiration (nearest match). Optional.
- `expiration` (string): Filter to a specific expiration date (YYYY-MM-DD) or "all" for every expiration. Optional.
- `minOpenInterest` (number): Only return contracts with at least this open interest. Optional.
- `side` (string): Contract side: "call" or "put". Optional (returns both if omitted).
- `strikeLimit` (number): Limit the number of strikes returned (nearest to the money). Optional.
- `underlyingSymbol` (string, required): Underlying ticker symbol, e.g. "AAPL", "SPY", "TSLA"

### `marketdata_option_quote` (~183 tokens)

Get a live/delayed quote plus greeks for a single option contract, identified by its OCC option symbol. Returns bid/ask/mid/last, volume, open interest, IV, delta/gamma/theta/vega, and intrinsic/extrinsic value. Example: marketdata_option_quote({ optionSymbol: "AAPL260116C00150000", _apiKey: "your-key" })

Input parameters:

- `_apiKey` (string, required): Market Data App API token. Get one at https://www.marketdata.app/pricing/
- `date` (string): Historical end-of-day quote for a specific trading day (YYYY-MM-DD). Optional.
- `optionSymbol` (string, required): OCC-formatted option symbol, e.g. "AAPL260116C00150000" (AAPL 2026-01-16 $150 call).

### `marketdata_stock_quote` (~130 tokens)

Get a live/delayed stock quote: bid/ask/mid/last, absolute + percent change, and session volume. Example: marketdata_stock_quote({ symbol: "AAPL", _apiKey: "your-key" })

Input parameters:

- `_apiKey` (string, required): Market Data App API token. Get one at https://www.marketdata.app/pricing/
- `fiftyTwoWeek` (boolean): Include 52-week high/low in the response. Optional.
- `symbol` (string, required): Stock ticker symbol, e.g. "AAPL", "MSFT", "SPY".

### `marketdata_candles` (~257 tokens)

Get historical OHLCV candles for a stock symbol at a given resolution ("D" daily, "H" hourly, "5" for 5-minute, etc.). Provide a from/to date range. Example: marketdata_candles({ resolution: "D", symbol: "AAPL", from: "2026-01-01", to: "2026-06-30", _apiKey: "your-key" })

Input parameters:

- `_apiKey` (string, required): Market Data App API token. Get one at https://www.marketdata.app/pricing/
- `countback` (number): Return this many candles counting back from `to` (mutually exclusive with `from`). Optional.
- `from` (string): Start date (YYYY-MM-DD), inclusive. Optional.
- `resolution` (string): Candle resolution: "D" (daily), "W" (weekly), "M" (monthly), "H" (hourly), or a minute count like "1", "5", "15". Defaults to "D".
- `symbol` (string, required): Stock ticker symbol, e.g. "AAPL".
- `to` (string): End date (YYYY-MM-DD), inclusive. Optional.

## Diagnostics

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

## Score history

- 2026-11-05: 82
- 2026-11-04: 81
- 2026-11-03: 81
- 2026-11-02: 65
- 2026-11-01: 80
- 2026-10-31: 80
- 2026-10-30: 79
- 2026-10-29: 79

## Common questions

### What is the Marketdata App MCP server?

Marketdata App is an MCP server listed in the public MCP registry as io.github.pipeworx-io/marketdata-app. Market Data App MCP, wraps the Market Data App API (marketdata.app). This page covers its npm package (@pipeworx/mcp-marketdata-app).

### Is the Marketdata App MCP server safe to use?

Marketdata App scores 82 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 Marketdata App MCP server expose?

Marketdata App exposes 4 tools: marketdata_option_chain, marketdata_option_quote, marketdata_stock_quote, marketdata_candles. Their descriptions and schemas cost roughly 919 tokens of context every time the server is loaded.

### Is the Marketdata App MCP server still maintained?

Marketdata App 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 Marketdata App MCP server under?

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

### What did VerifyMCP test on the Marketdata App MCP server?

VerifyMCP ran 15 checks on Marketdata App, covering Malware scan, Known CVEs, Install scripts, Dependency health and 11 more. One item could not be completed, a gap on our side rather than a finding about Marketdata App: Security disclosure. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

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