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ChronoKey

by Dyln01 · remote · no sign-in to list tools · v2.2.1 · published by GitHub user Dyln01

MCP tools: timestamps, UUID v4, gas prices, domain WHOIS, text extraction, and persistent memory.

Changes · 2
CompareRegistry entry

7 tools: 2 change things and 5 only read.

Scanned Oct 21, 2026

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

claude mcp add --transport http chronokey https://bot.chronokey.workers.dev/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • WarngenerateUUID

    The server marks "generateUUID" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false}; The name "generateUUID" says "generate": a word for a change.

    What this check looks for

Tools

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

7 tools

Changes things 2Claude Code: ask
  • generateUUIDGenerates a UUID v4 identifier for transactions, session keys, or unique names.1 finding

    Why it is in this group

    • The name "generateUUID" says "generate": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "generateUUID" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false}; The name "generateUUID" says "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Generates a UUID v4 identifier for transactions, session keys, or unique names.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Generate UUID v4
  • memoryStoreStores a key-value fact in persistent memory across sessions.No findings

    Why it is in this group

    • The name "memoryStore" says "store": a word for a change.
    Description, as the server wrote it
    Stores a key-value fact in persistent memory across sessions.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • title: Store Memory
Only reads 5Claude Code: allow
  • extractTextFromUrlFetches a URL and returns clean readable text with boilerplate removed.No findings

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    Description, as the server wrote it
    Fetches a URL and returns clean readable text with boilerplate removed.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Extract Text From URL
  • getDomainIntelReturns domain intelligence and WHOIS data via RDAP: registrar, creation date, expiration, nameservers, status flags.No findings

    Why it is in this group

    • The name "getDomainIntel" says "get": a word for reading.
    Description, as the server wrote it
    Returns domain intelligence and WHOIS data via RDAP: registrar, creation date, expiration, nameservers, status flags.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Domain Intelligence Lookup
  • getGasPriceReturns the current Ethereum gas price in gwei from Base mainnet.No findings

    Why it is in this group

    • The name "getGasPrice" says "get": a word for reading.
    Description, as the server wrote it
    Returns the current Ethereum gas price in gwei from Base mainnet.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Get Ethereum Gas Price
  • getTimestampReturns the current unix timestamp in milliseconds, seconds, and ISO 8601.No findings

    Why it is in this group

    • The name "getTimestamp" says "get": a word for reading.
    Description, as the server wrote it
    Returns the current unix timestamp in milliseconds, seconds, and ISO 8601. Use for scheduling, logging, or time-based reasoning.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Get Current Unix Timestamp
  • memoryRetrieveRetrieves a previously stored memory value by key.No findings

    Why it is in this group

    • The name "memoryRetrieve" says "retrieve": a word for reading.
    Description, as the server wrote it
    Retrieves a previously stored memory value by key.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Retrieve Memory

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 2.2.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http chronokey https://bot.chronokey.workers.dev/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__chronokey__getTimestamp",
      "mcp__chronokey__getGasPrice",
      "mcp__chronokey__getDomainIntel",
      "mcp__chronokey__extractTextFromUrl",
      "mcp__chronokey__memoryRetrieve"
    ],
    "ask": [
      "mcp__chronokey__generateUUID",
      "mcp__chronokey__memoryStore"
    ],
    "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 chronokey. Review it before you use it.