Countersignatory MCP Server

by countersignatory Your server? Claim it

answering

Countersignatory is answering right now. Last checked 4 min ago. It exposes 3 tools. Last commit 6 Sep 2026.

Live spot prices for verified human judgment, sign-off and notarisation.

Uptime history 14 days of history

14 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

178 ms

Response time

average over 24h

Stars

last commit 6 Sep 2026

What changed 4

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 14 September 2026. No other catalogue keeps this.

15 Sep a tool description was rewritten countersignatory_spot_index

14 Sep 2 tools changed the parameters they ask for countersignatory_quote, countersignatory_register_interest

14 Sep a tool description was rewritten countersignatory_register_interest

Nothing serious here today

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

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.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp --transport http https://countersignatory.com/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://countersignatory.com/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp]
url = "https://countersignatory.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://countersignatory.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://countersignatory.com/mcp"
    }
  }
}

Available tools 3

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

countersignatory

countersignatory_quote

Get the current spot price to have a verified human check, agree on, sign off or notarise something. Use when an agent needs human judgment, accountability or a signature, and needs to know the cost and time before committing. Returns an indicative price, a band, what would clear at a lower bid, and the implied rate per human minute.

countersignatory_register_interest

Record that you would buy. Send the quote_id from a countersignatory_quote response to say the quoted price would clear your use case. For a market on the spot index whose state is opening, which cannot be quoted yet, send its market id instead. This is the demand signal that decides which markets open first.

countersignatory_spot_index

The public Countersignatory Spot Index: the going rate for verified human judgment by market, with the urgency and off-hours multipliers, the published wage floor, and the derivation of every seeded number. Use it for the reference rate table across all markets; use countersignatory_quote when you have a specific task and need a price for it.

Endpoints

URL	Transport	State	Latency	Checked
https://countersignatory.com/mcp	streamable-http	answering	196 ms	4 min ago

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Countersignatory — questions

Answers built from our own checks of this server.

What can Countersignatory do?

It exposes 3 tools, read directly from the server on our last check. Among them: countersignatory_quote, countersignatory_register_interest, countersignatory_spot_index. 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 Countersignatory 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 178 ms. The bar chart above shows every period we have measured.

How do I connect Countersignatory?

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 Countersignatory need an API key?

No. Countersignatory completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Countersignatory?

It answers our handshake in 178 ms on average, which is faster than 71% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Countersignatory open source?

We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.