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Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Payments & trading

L50 Marketplace Data

By lewisororke

eBay, Vinted, Poshmark, Reverb and Shopify prices plus a price compare. Pay per call, x402 USDC.

WebsiteSource codeFinance & paymentsCommerce & marketing
Connect to L50 Marketplace Data
Checks passed
12 / 22

2 failed · 8 not measured

Median response
72 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
6

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
222

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 72 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name l50-marketplaces.

  • Pass
    Lists tools

    tools/list returned 6 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 72 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 72 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    29 of 33 parameters have a description (88%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Not measured
    Website matches publisher

    This namespace is not a reverse domain, so the website comparison does not apply.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Fail
    Repo owner matches

    The GitHub repository owner does not match the namespace login.

  • Pass
    Recently updated

    Updated 2026-11-08T13:41:55.627509Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using L50 Marketplace Data

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http l50-marketplace-data https://marketplaces.l50automation.com/mcp

Capabilities

Tools 6

compare_resale

Compare one product's price across eBay UK, Vinted UK, Reverb and Poshmark (US, reference) in GBP: price range per marketplace, cheapest place to buy, best place to sell after fees, flip profit and margin, and the best deals with links. Costs $0.05 per call, paid in USDC on Base with x402.

Discovered
ebay_market

Live eBay market for one keyword on 8 eBay sites: price range with postage, seller concentration, China share, cheapest listings, optional profit from your cost. Costs $0.02 per call, paid in USDC on Base with x402.

Discovered
poshmark_search

Live Poshmark (US fashion resale) listings for a keyword: a market summary (median asking price by condition, discount from retail, top brands and sizes, share listed this week) plus up to 100 listings with price, original price, brand, size, condition and likes. Costs $0.05 per call, paid in USDC on Base with x402.

Discovered
reverb_search

Live Reverb (music gear marketplace) listings for a keyword: a market summary (median asking price by condition, share taking offers, top makes, cheapest with postage) plus up to 100 listings with price, postage, condition, make, model and year. Costs $0.05 per call, paid in USDC on Base with x402.

Discovered
shopify_store

Any Shopify store's catalogue: a store summary (price range, share on sale, in stock, new in the last 30 days, top product types) plus up to 100 products with price, 'was' price and discount, stock, variants, vendor and date added. Costs $0.03 per call, paid in USDC on Base with x402.

Discovered
vinted_search

Vinted listings for one keyword in 14 countries (price with buyer fee, brand, size, condition, link), with price statistics and, for UK, France, Germany, Italy and Spain, a resale check against live used eBay prices with estimated profit per flip. Up to 50 listings per call. Costs $0.03 per call, paid in USDC on Base with x402.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected72 ms6

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