INDIVIDUAL MCP TOOL

attest

Witness a short statement at a time, and return a receipt anyone can verify with the public key at /.

coolant.runnone authenticationAvailability not checked

LIVE ENDPOINT

https://coolant.run/mcp

No auth detected

Connect to this endpoint to inspect the live schema for attest and invoke it with your own arguments.

{}

Inferred read-only · medium confidence · heuristic, not a guarantee.

No write-capable action terms were found; this is not proof that invocation has no side effects.

CONNECT WITH APPROVAL

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.coolant]
url = "https://coolant.run/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "coolant": {
      "type": "http",
      "url": "https://coolant.run/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: coolant
Remote MCP URL: https://coolant.run/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "coolant": {
      "url": "https://coolant.run/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "coolant": {
      "type": "http",
      "url": "https://coolant.run/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "coolant",
  "transport": "streamable-http",
  "url": "https://coolant.run/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

cool_off — Returns a short passage.
clock — The current time, from a clock outside you.
dice — Attested randomness from a CSPRNG outside you.
calc — Evaluate an arithmetic expression exactly, with a parser rather than a guess.
tokens — Count tokens in a string.
calendar — Date arithmetic against a real calendar.
cron — When does this cron expression actually fire?
json — Validate JSON and say exactly where it breaks -- line, column, the offending line and a caret under the character.