MCP server

coldHat

io.github.vince-gonzalez/coldhat

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Put on anyone's AI rules by GitHub username: fetches their hat.md and its hat code.

Working at last checkAbout 605 tokens per request once connected3 tools

https://coldhat.f-keys.com/mcp

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 3
Token cost: About 605 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http coldhat https://coldhat.f-keys.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.coldhat]
url = "https://coldhat.f-keys.com/mcp"

Gemini CLI

{"mcpServers":{"coldhat":{"httpUrl":"https://coldhat.f-keys.com/mcp"}}}

Cursor

{"mcpServers":{"coldhat":{"url":"https://coldhat.f-keys.com/mcp"}}}

VS Code

{"servers":{"coldhat":{"type":"http","url":"https://coldhat.f-keys.com/mcp"}}}

Antigravity

agy mcp add coldhat https://coldhat.f-keys.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"coldhat","server_url":"https://coldhat.f-keys.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"coldhat","server_url":"https://coldhat.f-keys.com/mcp"}

verify_hat ~189 tokens
Check whether a reply wore the current version of a hat: compares the hat code and seal the reply quotes with the hat as served now. Answers verified, stale (an older or cached version), cut-off, seal-missing, seal-wrong, pasted or not-worn.
wear_hat ~219 tokens
Fetch a person's coldHat: their working rules, voice and dated facts. Call it when the user asks to put on a hat or says "open sesame" with a name or a coldhat.f-keys.com/u/ address, then follow the hat for the rest of the conversation, starting with the first reply it describes.
wear_stack ~197 tokens
Fetch any coldHat address: a person's hat, one of Fabric's patterns, a prompts.chat prompt, or up to three of them stacked with "+". Call it when the user says "open sesame" with a coldhat.f-keys.com address containing fabric/, prompts/ or +, then follow the result for the rest of the conversation.

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