Coolant

run.coolant/coolant

Instruments for what a model cannot know on its own: time, randomness, DNS, hashes, receipts.

Description as published in the official MCP registry.

Answers the MCP handshake and lists its tools. Checked 2026-10-04.

What we measured

Endpointhttps://coolant.run/mcpregistry
HandshakeAnswers the MCP handshake and lists its tools (743 ms)our check, 2026-10-04
Protocol version2025-06-18our check, 2026-10-04
Tools (28)cool_off, clock, dice, calc, tokens, calendar, cron, json, regex, robots, key, room_key, room, notary, attest, receipt, guestbook, koan, mailbox, lease, lock, drop, head, hashurl, dns, cert, whoami, pingtools/list, 2026-10-04
Registry version1.2.0 · active · updated 2026-09-16registry

Signed reports

No signed reports yet. A report carries a signed decision record from the reporter's gate, so it shows a real call went through, not just an opinion. How to file one.

Connect

claude mcp add --transport http coolant https://coolant.run/mcp

Commands are built from the registry entry. Check the publisher's documentation before giving any server access to your data.

Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name run.coolant/coolant.