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ReturnCheck MCP Server

by mangelmartinezfer-hue Your server? Claim it
answering

ReturnCheck is answering right now. Last checked 4 min ago. 275 installs a week from npm. It exposes 1 tools. Last commit 31 Aug 2026.

Can this product actually be returned? The merchant's exact clause, its URL and the date.

Installs per day peak 243 · avg 8
a month agotoday
Uptime history 9 days of history
9 days agonow
100.0%
Uptime 24h
91 of 91 checks
1
Tools
read from the server
111 ms
Response time
average over 24h
275
Installs / week
npm and PyPI

What the code does

We read the source, 12 h ago · tools taken from the live server · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

File ships in the package but is absent from the source [пакет] src/pagina.mjs:1, [пакет] bin/returncheck-mcp.mjs:1, [пакет] src/servidor.mjs:1
этот файл ставится пользователю, но в репозитории его нет

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.

run in your terminal
claude mcp add returncheck --transport http https://returncheck.m-angelmartinez-fer.workers.dev/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "returncheck": {
      "url": "https://returncheck.m-angelmartinez-fer.workers.dev/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.returncheck]
url = "https://returncheck.m-angelmartinez-fer.workers.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "returncheck": {
      "url": "https://returncheck.m-angelmartinez-fer.workers.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "returncheck": {
      "url": "https://returncheck.m-angelmartinez-fer.workers.dev/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

return
check_return
Answer one question: can this specific product actually be returned? BEST RESULTS: send the product page you already have as page_text (or page_html) along with product_url — your browser renders JavaScript and is not blocked by retailers, so this works on any store and is faster. Without it we fetch the page ourselves and reach the policy for about 1 in 3 US retailers (17 of 50 measured 2026-08-28; mostly Shopify and direct-to-consumer brands — large retailers and marketplaces block server-side reads). You get a verified verdict — YES / YES_WITH_CONDITIONS / NO / UNKNOWN — with the exact policy clause quoted verbatim, source URL, return window/deadline, fees and a confidence score. Never invents: returns UNKNOWN instead of guessing, and UNKNOWN is free.

Endpoints

URLTransportStateLatencyChecked
https://returncheck.m-angelmartinez-fer.workers.dev/mcp streamable-http answering 137 ms 4 min ago

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ReturnCheck — questions

Answers built from our own checks of this server.

What can ReturnCheck do?
It exposes 1 tools, read directly from the server on our last check. Among them: check_return. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is ReturnCheck working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 111 ms. The bar chart above shows every period we have measured.
How do I connect ReturnCheck?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does ReturnCheck need an API key?
No. ReturnCheck completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is ReturnCheck?
It answers our handshake in 111 ms on average, which is faster than 89% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use ReturnCheck?
The npm package returncheck-mcp was installed 275 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is ReturnCheck open source?
Yes — written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.