The Countersignatory MCP server,
connected in one click.
Live spot prices for verified human judgment, sign-off and notarisation. Connect the official Countersignatory MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Countersignatory to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http countersignatory https://countersignatory.com/mcpRun in your terminal, then restart Claude Code.
Countersignatory · https://countersignatory.com/mcp
What your AI can do with Countersignatory
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “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,.”
“Use “countersignatory_register_interest”: Record that the quoted price would clear your use case and you would buy at it. Takes the quote_id from a countersignatory_quote response. T.”
“Use “countersignatory_spot_index”: The public Countersignatory Spot Index: the going rate for verified human judgment by market, with the urgency and off-hours multipliers, th.”
How secure is the Countersignatory MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Countersignatory holds up.
Official endpoint
Operated by Countersignatory (countersignatory.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Countersignatory adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Countersignatory
Choose Countersignatory in the gate directory. No sign-in needed.
Use it anywhere
Countersignatory's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Countersignatory exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
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,
countersignatory_register_interest — Record that the quoted price would clear your use case and you would buy at it. Takes the quote_id from a countersignatory_quote response. T
countersignatory_spot_index — The public Countersignatory Spot Index: the going rate for verified human judgment by market, with the urgency and off-hours multipliers, th
Who runs the Countersignatory MCP server?
The Countersignatory MCP server at a glance
https://countersignatory.com/mcpQuestions, answered
Is there an official Countersignatory MCP server?
Yes — Countersignatory operates its own remote MCP server at countersignatory.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Countersignatory to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Countersignatory in the directory. No account or sign-in is needed. From then on, Countersignatory's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Countersignatory runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Countersignatory MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Countersignatory in minutes. No credit card required.
Connect more than just Countersignatory
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Countersignatory in: Claude · Claude Code · ChatGPT · Cursor · VS Code
Give your AI Countersignatory — safely.
One URL. All MCPs. Full control. Free to start.
Get started free