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Hardcover OAuth MCP Server

by benjuntilla Your server? Claim it
answering

Hardcover OAuth MCP is answering right now. Last checked 3 min ago. Last commit 21 Oct 2026.

Read and update your Hardcover library, progress, lists, and goals. Sign in with Hardcover OAuth.

Uptime history 13 days of history
13 days agonow
100.0%
Uptime 24h
92 of 92 checks
—
Tools
hidden behind auth
314 ms
Response time
average over 24h
3
Stars
last commit 21 Oct 2026

Nothing serious here today

Today is the operative word: we check Hardcover OAuth MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

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 3 min ago.

run in your terminal
claude mcp add hardcover-oauth-mcp --transport http https://hardcover.benjuntilla.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://hardcover.benjuntilla.com/mcp
~/.codex/config.toml
[mcp_servers.hardcover-oauth-mcp]
url = "https://hardcover.benjuntilla.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "hardcover-oauth-mcp": {
      "url": "https://hardcover.benjuntilla.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "hardcover-oauth-mcp": {
      "type": "http",
      "url": "https://hardcover.benjuntilla.com/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URLTransportStateLatencyChecked
https://hardcover.benjuntilla.com/mcp streamable-http sign-in 213 ms 3 min ago

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Hardcover OAuth MCP — questions

Answers built from our own checks of this server.

Why is there no tool list for Hardcover OAuth MCP?
The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.
Is Hardcover OAuth MCP working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 314 ms. The bar chart above shows every period we have measured.
How do I connect Hardcover OAuth MCP?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.
How do you sign in to Hardcover OAuth MCP?
No API key is involved. Hardcover OAuth MCP answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.
How fast is Hardcover OAuth MCP?
It answers our handshake in 314 ms on average, which is faster than 45% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Hardcover OAuth MCP open source?
The code is open source: it is published under the MIT licence, written in TypeScript, 3 stars on GitHub and 2 open issues. The licence covers the code in the repository, not the hosted service at hardcover.benjuntilla.com, which runs on its operator's own terms.