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Diff Checker API MCP Server

by br0ski777 Your server? Claim it
not responding

Diff Checker API is listed as active in the registry but did not answer our last check. It exposes 1 tools. Last commit 2 Sep 2026.

Compare two texts line-by-line — additions, deletions, unchanged. x402 micropayment.

Uptime history 51 days of history · worst day 0%
51 days agonow
0.0%
Uptime 24h
0 of 92 checks
1
Tools
read from the server
51 ms
Response time
average over 24h
1
Stars
last commit 2 Sep 2026

Diff Checker API does not always answer

Over the last week it answered 30.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

run in your terminal
claude mcp add diff-checker --transport http https://diff-checker.api.klymax402.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "diff-checker": {
      "url": "https://diff-checker.api.klymax402.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.diff-checker]
url = "https://diff-checker.api.klymax402.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "diff-checker": {
      "url": "https://diff-checker.api.klymax402.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "diff-checker": {
      "url": "https://diff-checker.api.klymax402.com/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

text
text_compare_diff
Use this when you need to compare two pieces of text and identify exactly what changed between them. Returns a structured line-by-line diff with summary statistics. 1. changes -- array of diff entries, each with type (added, removed, unchanged) and content 2. linesAdded -- total number of new lines in text2 3. linesRemoved -- total number of lines deleted from text1 4. linesUnchanged -- total number of identical lines 5. similarity -- percentage similarity between the two texts (0-100) Example output: {"changes":[{"type":"unchanged","content":"line 1"},{"type":"removed","content":"old line 2"},{"type":"added","content":"new line 2"}],"linesAdded":1,"linesRemoved":1,"linesUnchanged":1,"similarity":66.7} Use this FOR code review (comparing before/after), tracking document revisions, verifying config file changes, or auditing template modifications. Use this BEFORE deploying config changes to understand what differs. Do NOT use for text classification -- use text_classify_content instead. Do NOT use for sentiment analysis -- use text_analyze_sentiment instead. Do NOT use for word counting -- use text_count_words instead.

Endpoints

URLTransportStateLatencyChecked
https://diff-checker.api.klymax402.com/mcp sse answering 51 ms 3 min ago

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Diff Checker API — questions

Answers built from our own checks of this server.

What can Diff Checker API do?
It exposes 1 tools, read directly from the server on our last check. Among them: text_compare_diff. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Diff Checker API working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 92 checks got a reply (0.0%), average response time 51 ms. The bar chart above shows every period we have measured.
The registry lists Diff Checker API as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Diff Checker API?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Diff Checker API need an API key?
No. Diff Checker API completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.
Is Diff Checker API open source?
Yes — it is published under the MIT licence, written in TypeScript and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.