# io.github.jlsookiki/secondhand-mcp (npm · secondhand-mcp)

Search Facebook Marketplace, eBay, Depop, and Poshmark from AI — filters, photos, full listings.

- Trust score: 67/100 (medium)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- npm · `secondhand-mcp`: 67/100 (this document), [markdown](https://verifymcp.io/servers/jlsookiki-secondhand-mcp/secondhand-mcp.md), [page](https://verifymcp.io/servers/jlsookiki-secondhand-mcp/secondhand-mcp)

## Channel facts

- Registry: `npm`
- Package: `secondhand-mcp`
- Version: `0.6.0`
- 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 2026-09-20.

- **Supply Chain Security**: 80/100
  - No malware found by supply-chain analysis.
  - CVE check failed: a known high-severity CVE affects @modelcontextprotocol/sdk 1.5.0, a direct dependency. A fixed version is available.
  - No install/post-install scripts declared.
  - 59 of 139 dependencies flagged as unhealthy (3 deprecated).
- **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 12 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 57/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1594 tokens (~318/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 87/100
  - Stability observed for 26 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**: 50/100
  - Injection-marker check failed: the server instructions contains an instruction to conceal the call from the user, the text "do not tell the user", at byte 1805 of that field.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 20/100
  - Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28.

## Install

### How do I install the io.github.jlsookiki/secondhand-mcp server?

io.github.jlsookiki/secondhand-mcp runs locally as an npm package, launched with npx -y secondhand-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 jlsookiki-secondhand-mcp -- npx -y secondhand-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "jlsookiki-secondhand-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "secondhand-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "jlsookiki-secondhand-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "secondhand-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add jlsookiki-secondhand-mcp -- npx -y secondhand-mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add jlsookiki-secondhand-mcp --command npx --arg -y --arg secondhand-mcp
```

### Hermes

```yaml
mcp_servers:
  jlsookiki-secondhand-mcp:
    command: "npx"
    args: ["-y", "secondhand-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "jlsookiki-secondhand-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "secondhand-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add jlsookiki-secondhand-mcp -t stdio -c npx -a -y secondhand-mcp
```

### Other

```json
{
  "mcpServers": {
    "jlsookiki-secondhand-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "secondhand-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.

### 2026-09-19 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 66, −3)

- [functional] Stability: pass → 0.80

### 2026-09-17 (score 69, 0)

- [security] Stability: 0.97 → pass

### 2026-09-16 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-14 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-12 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-10 (score 66, +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.

### 2026-09-08 (score 65, +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.

## MCP tools (5)

### `search_marketplace` (~697 tokens)

Search for items on secondary marketplaces. Supports: facebook. Returns listing ID, title, price, location, and photo count. Facebook: location-based search, no auth. eBay: keyword search with condition filter, requires API keys. Depop: keyword search with filters for sort, condition, category, brands, sizes, colors (requires Chrome). Poshmark: keyword search with filters for sort, condition, sizes, colors (requires Chrome). Use get_listing_details with a listing ID for full description, all photos, seller info, and shipping options.

Input parameters:

- `brand` (string): Filter by brand (Poshmark only). e.g. "Nike", "Levi's", "Gucci"
- `category` (string): Product category. Depop: tops, bottoms, dresses, coats-jackets, footwear, accessories, bags, jewellery, activewear, swimwear. Poshmark: use underscore-separated names like Jackets_&_Coats, Dresses, S…
- `colors` (array): Filter by colors (Depop, Poshmark). Options: black, white, red, blue, green, yellow, orange, pink, purple, brown, grey, cream, multi, silver, gold
- `condition` (string): Item condition filter. eBay: new, like_new, good, fair. Depop: new, like_new, excellent, good, fair, used. Poshmark: new (NWT), like_new (NWOT), good, fair. Use "any" for no filter.
- `department` (string): Filter by department (Poshmark only). Options: Women, Men, Kids
- `includeImages` (boolean): Include full image URLs in results (default: false). Use get_listing_details for full photos.
- `limit` (number): Maximum number of results to return (default: 20). eBay paginates automatically to fetch more than 200 (eBay caps offset + limit at 10,000).
- `location` (string): City and state for Facebook Marketplace searches, as "City, ST" — e.g. "Austin, TX", "Portland, OR". Resolve neighborhoods, ZIP codes, metro areas and "near me" to a city and state before calling; a…
- `marketplace` (string): Marketplace to search. Options: facebook, or "all" to search all marketplaces
- `maxPrice` (number): Maximum price filter (optional)
- `minPrice` (number): Minimum price filter (optional)
- `offset` (number): Starting result offset for pagination (default: 0). eBay only; other marketplaces ignore it.
- `query` (string, required): Search query (e.g., "stroller", "iPhone 14", "vintage couch")
- `showSold` (boolean): Include sold/unavailable items in results (default: false)
- `sizes` (array): Filter by sizes (Depop, Poshmark). Example: ["S", "M", "L"] or ["US 9", "US 10"]
- `sort` (string): Sort order (Depop, Poshmark). Options: relevance, newest, most_popular, price_low_to_high, price_high_to_low

### `get_listing_details` (~354 tokens)

Get full details for a specific listing using an ID from search results: description, all photos, location, seller info, and shipping. Photos: by default (imageMode:"urls") you get direct full-resolution CDN image URLs to fetch yourself — most reliable, since some CDNs block server-side fetches. Set imageMode:"inline" (or includeImages:true) to have the server fetch the photos and return them as base64 image blocks inline. Use imageSize to trade resolution for payload and maxImages to cap the count.

Input parameters:

- `imageMode` (string): How photos are returned. "urls" (default): direct full-resolution CDN image URLs for you to fetch yourself — most reliable, bypasses CDN blocking of server-side fetches, defaults to full resolution.…
- `imageSize` (string): Resolution for eBay images: thumb (~400px), standard (~800px), full (~1600px). Defaults to full for imageMode "urls" and standard for "inline". Non-eBay images are returned as-is.
- `includeImages` (boolean): Deprecated alias for imageMode:"inline". If true and imageMode is unset, photos are fetched server-side and returned inline as base64.
- `listingId` (string, required): The listing ID (from search results or a marketplace URL)
- `marketplace` (string): Which marketplace the listing is from (default: facebook)
- `maxImages` (number): Cap the number of photos returned (default: all). Use to keep the response small for listings with many photos.

### `list_marketplaces` (~17 tokens)

List all available marketplaces and their status

### `search` (~52 tokens)

Search all available secondhand marketplaces at once (deep research). Returns results whose IDs (marketplace:listingId) can be passed to the fetch tool for full listing details.

Input parameters:

- `query` (string, required): Search query string

### `fetch` (~69 tokens)

Fetch full listing details for a result ID returned by the search tool. ID format: marketplace:listingId (e.g., "facebook:12345" or "ebay:v1|123|456").

Input parameters:

- `id` (string, required): Result ID from the search tool (format: marketplace:listingId)

## Diagnostics

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

## Score history

- 2026-09-20: 67
- 2026-09-19: 67
- 2026-09-18: 66
- 2026-09-17: 69
- 2026-09-16: 69
- 2026-09-15: 68
- 2026-09-14: 68
- 2026-09-13: 67
- 2026-09-12: 67
- 2026-09-11: 66
- 2026-09-10: 66
- 2026-09-09: 65
- 2026-09-08: 65
- 2026-09-07: 64
- 2026-09-06: 64
- 2026-09-05: 63
- 2026-09-04: 63
- 2026-09-03: 62
- 2026-09-02: 62
- 2026-09-01: 62
- 2026-08-31: 64
- 2026-08-30: 64
- 2026-08-29: 64
- 2026-08-28: 63
- 2026-08-27: 63
- 2026-08-26: 62
- 2026-08-25: 56
- 2026-08-24: 56
- 2026-08-23: 56
- 2026-08-22: 56

## Common questions

### What is the io.github.jlsookiki/secondhand-mcp server?

io.github.jlsookiki/secondhand-mcp is listed in the public MCP registry as io.github.jlsookiki/secondhand-mcp. Search Facebook Marketplace, eBay, Depop, and Poshmark from AI, filters, photos, full listings. This page covers its npm package (secondhand-mcp).

### Is the io.github.jlsookiki/secondhand-mcp server safe to use?

io.github.jlsookiki/secondhand-mcp scores 67 out of 100 on VerifyMCP. We recorded 4 known advisories against it as of 20 September 2026. It declares no install or post-install scripts. 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 io.github.jlsookiki/secondhand-mcp server expose?

io.github.jlsookiki/secondhand-mcp exposes 5 tools: search_marketplace, get_listing_details, list_marketplaces, search, fetch. Their descriptions and schemas cost roughly 1,189 tokens of context every time the server is loaded.

### Is the io.github.jlsookiki/secondhand-mcp server still maintained?

io.github.jlsookiki/secondhand-mcp is still listed as active in the MCP registry. We last reached this channel on 20 September 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 io.github.jlsookiki/secondhand-mcp server under?

io.github.jlsookiki/secondhand-mcp 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/secondhand-mcp
- Socket report: https://socket.dev/npm/package/secondhand-mcp
- Repository: https://github.com/jlsookiki/secondhand-mcp
- Website: https://secondhandmcp.com/
- Changelog RSS feed: https://verifymcp.io/servers/jlsookiki-secondhand-mcp/secondhand-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/jlsookiki-secondhand-mcp/secondhand-mcp.json
- HTML version of this page: https://verifymcp.io/servers/jlsookiki-secondhand-mcp/secondhand-mcp