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Fairsign MCP Server

by zhouhua188199-arch Your server? Claim it
not responding

Fairsign is listed as active in the registry but did not answer our last check.

Fill and sign PDFs in the browser, send for signature, and track who has signed.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 19 days of history · worst day 12%
19 days agonow
27.5%
Uptime 24h
25 of 91 checks
Tools
hidden behind auth
1115 ms
Response time
average over 24h
open, no key
Access
streamable-http

Fairsign does not always answer

Over the last week it answered 24.3% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

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 11 min ago.

run in your terminal
claude mcp add fairsign --transport http https://www.usefairsign.com/api/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "fairsign": {
      "url": "https://www.usefairsign.com/api/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.fairsign]
url = "https://www.usefairsign.com/api/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "fairsign": {
      "url": "https://www.usefairsign.com/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "fairsign": {
      "url": "https://www.usefairsign.com/api/mcp"
    }
  }
}

Endpoints

URLTransportStateLatencyChecked
https://www.usefairsign.com/api/mcp streamable-http answering 163 ms 11 min ago

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Fairsign — questions

Answers built from our own checks of this server.

Is Fairsign working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 25 of 91 checks got a reply (27.5%), average response time 1115 ms. The bar chart above shows every period we have measured.
Is Fairsign still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
The registry lists Fairsign as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Fairsign?
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 Fairsign need an API key?
No. Fairsign completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.
How fast is Fairsign?
It answers our handshake in 1115 ms on average, which is faster than 8% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.