well-009-url-change-watch

Has this https URL changed? (sha256/etag). x402 $0.01 USDC, Base. As is, no warranty.

Should I use this

Quality & Safety

A
Description quality
100%
Schema completeness
100%
Naming quality
50%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Findings (1)

  • LOWTool 'url-change-check' doesn't follow camelCase/snake_casein url-change-check

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~339Tokens (tool definitions)
~2.0 KBTypical response size
Minimal attention impact (0.26% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "url-change-check": {
      "url": "https://well-009-url-change-watch.mmelnyk2000.workers.dev/mcp"
    }
  }
}

Remote endpoints

https://well-009-url-change-watch.mmelnyk2000.workers.dev/mcpstreamable-http

What it can do

Tool inventory

Tools (1)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢url-change-check(url, previous_sha256, previous_etag, include_body_if_changed)

Fetch a public https URL, compute SHA-256 of the response body, and report whether it changed vs a prior sha256/etag ($0.01 USDC via x402). Sticky: store sha256 and call again later. Optional previous_sha256, previous_etag, include_body_if_changed. https only — http, file, data, localhost, and private IPs rejected. Caps: 1 MB body, ~10s timeout, max 5 redirects. Returns JSON { url, final_url, content_type, byte_length, sha256, etag?, last_modified?, changed, warnings, body_preview? }. As is, no warranty. Nothing stored.

Input Schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "https URL to watch. http/file/data/localhost/private IPs rejected."
    },
    "previous_sha256": {
      "description": "Hex SHA-256 of last seen body. If omitted (and no previous_etag match), this call is a baseline (changed=null).",
      "type": "string"
    },
    "previous_etag": {
      "description": "Prior ETag; used when previous_sha256 is absent and response has ETag (quotes normalized).",
      "type": "string"
    },
    "include_body_if_changed": {
      "description": "If true and changed (or baseline), include truncated body text (~8KB) as body_preview. Default false.",
      "type": "boolean"
    }
  },
  "required": [
    "url"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Community

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Evidence

Recent observations

verifiedversion not recorded1 tools