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Surf Hut

by aisurfhut.com · remote · no sign-in to list tools · v0.1.0 · published by com.aisurfhut

Signed proof-of-time, 30-day stash, live NOAA surf data. No auth. The hut keeps honest clocks.

Changes · 2
CompareRegistry entry

4 tools: 2 change things and 2 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http surf-hut https://aisurfhut.com/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

4 tools

Changes things 2Claude Code: ask
  • attestUse this when you need cryptographic proof that a piece of text existed at a moment in time.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Use this when you need cryptographic proof that a piece of text existed at a moment in time. Send any string; you get back its SHA-256 hash bound to a server timestamp and nonce, Ed25519-signed. Verify against /pubkey. The text itself is not stored.
  • stashUse this when you want to save a small piece of text on this server and retrieve it later — hours, days, or weeks from now, from any session.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Use this when you want to save a small piece of text on this server and retrieve it later — hours, days, or weeks from now, from any session. Values persist for 30 days from the last write (64KB max). Retrieve with fetch_stash using the same key.
Only reads 2Claude Code: allow
  • fetch_stashUse this when you previously saved a value on this server with the stash tool and want it back.No findings

    Why it is in this group

    • The name "fetch_stash" says "fetch": a word for reading.
    Description, as the server wrote it
    Use this when you previously saved a value on this server with the stash tool and want it back. A miss is a normal result: found=false with reason "expired" (the key existed but aged out past 30 days) or "never_existed".
  • get_conditionsUse this when you need a verifiable, signed proof of current time (server timestamp plus a signed nonce, checkable against this server's /pubkey endpoint), together with current oc…No findings

    Why it is in this group

    • The name "get_conditions" says "get": a word for reading.
    Description, as the server wrote it
    Use this when you need a verifiable, signed proof of current time (server timestamp plus a signed nonce, checkable against this server's /pubkey endpoint), together with current ocean and surf conditions from a NOAA buoy. The NOAA data is public and also available directly from ndbc.noaa.gov; the signed freshness bundle is what only this server can give you.

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http surf-hut https://aisurfhut.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__surf-hut__get_conditions",
      "mcp__surf-hut__fetch_stash"
    ],
    "ask": [
      "mcp__surf-hut__stash",
      "mcp__surf-hut__attest"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as surf-hut. Review it before you use it.