io.github.jlsookiki/secondhand-mcp
NPM · SECONDHAND-MCP
Search Facebook Marketplace, eBay, Depop, and Poshmark from AI — filters, photos, full listings.
Available components
Last scanned (6 hours ago)
Scores higher than 34% of npm servers
Category E-commerce
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. How we score → Why this is hard to score →
Supply Chain Security80
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects @modelcontextprotocol/sdk 1.5.0, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 59 of 142 dependencies flagged as unhealthy (3 deprecated). View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 58 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability57
- AI-judged instruction clarity (good).Pass
- 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. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management87
- Stability observed for 26 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety50
- 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. See how to fix → Fail
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities20
- Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28. See how to fix → Fail
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 0
- CVE-2026-118764 no longer affects this package ▲ security
- 4 Nov 26 −2
- Security disclosure: fail → unverified ▼ functional
- Stability: pass → 0.83 functional
- 31 Oct 26 0
- CVE-2026-118764 affects this package: high ▼ security
- Security disclosure: unverified → fail ▼ functional
- 30 Oct 26 0
- Security disclosure: fail → unverified ▼ functional
- 29 Oct 26 0
- Stability: 0.97 → pass security
- 28 Oct 26 +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.
- 27 Oct 26 −1
- Stability: pass → 0.93 functional
- 24 Oct 26 0
- CVE-2023-54404 affects this package: high ▼ security
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/secondhand-mcp@0.6.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 9 findings
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-46jr-4wx8-v453 | CVE-2026-111768 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
| GHSA-6prh-2h8m-c8cw | CVE-2026-111769 | medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N | yes |
| GHSA-8r9q-7v3j-jr4g | CVE-2026-0621 | high | yes | |
| GHSA-w48q-cv73-mx4w | CVE-2025-66414 | high | yes | |
| GHSA-c475-qrg2-pj4r | CVE-2026-102990 | high | yes | |
| GHSA-gcqx-w48m-w2h4 | CVE-2026-93753 | medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | no |
| GHSA-7pqw-9j4j-h8q3 | CVE-2026-19693 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H | no |
| GHSA-jmr9-qjv8-65gv | CVE-2026-56876 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N | no |
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 142 packages
| Packages resolved | 142 |
|---|---|
| Deprecated | 3 |
| Stale | 57 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
fetch ~69
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").
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Result ID from the search tool (format: marketplace:listingId) |
No output schema declared.
No examples provided.
get_listing_details ~354
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | yes | 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. |
No output schema declared.
No examples provided.
list_marketplaces ~17
List all available marketplaces and their status
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search ~52
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.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | Search query string |
No output schema declared.
No examples provided.
search_marketplace ~697
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | yes | 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 |
No output schema declared.
No examples provided.
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.
npm · secondhand-mcp
claude mcp add jlsookiki-secondhand-mcp -- npx -y secondhand-mcp
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 9 known advisories against it as of 5 November 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 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 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.