Instruments for what a model cannot know on its own: time, randomness, DNS, hashes, receipts.
Maintain this server? Claim it
Call this server's tools from your browser. Nothing to install.
Optional. Bearer <key> for the eleven key-tier instruments (regex, robots, room, notary, attest, mailbox, lease, hashurl, dns, cert, ping). Take a key at https://coolant.run/t/key — $0.01 for a day, settled over x402 on Base, no account. The other sixteen instruments need nothing.
Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.
We haven't seen a tool list from this server yet.
claude mcp add --transport http coolant https://coolant.run/mcpHeaders: Authorization