DiffMint by Harlo MCP Server

by workers-mike-tusa-diffmint Your server? Claim it

answering

DiffMint by Harlo is answering right now. Last checked 8 min ago. It exposes 3 tools.

Diff two texts by line, word or char: unified diff, HTML redline, patch apply, similarity.

Uptime history 6 days of history

6 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

98 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check DiffMint by Harlo every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add diffmint --transport http https://diffmint.mike-tusa.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://diffmint.mike-tusa.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.diffmint]
url = "https://diffmint.mike-tusa.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "diffmint": {
      "url": "https://diffmint.mike-tusa.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "diffmint": {
      "type": "http",
      "url": "https://diffmint.mike-tusa.workers.dev/mcp"
    }
  }
}

Available tools 3

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

apply

apply_patch

Apply a single-file unified diff (patch) to text and return the patched text, or applied:false if a hunk does not match. Optional fuzz 0-2.

diff

diff_text

Compare text a with text b by lines (default), words or chars. Returns ops (equal/insert/delete), a unified diff (lines mode), optional escaped HTML redline, stats and similarity. Deterministic diff (Myers algorithm via jsdiff), not an AI or semantic comparison. Limits per side: lines mode 64 KB and 1,000 lines, words mode 8 KB, chars mode 4 KB. If the texts need more than 250 inserted plus deleted units, the API returns 422 too_different instead of a partial diff. Patches up to 64 KB apply to text up to 64 KB. No 3-way merge, no binary files. Stateless: text is not stored or logged; no URL fetching.

text

text_similarity

Similarity ratio 0-1 between two texts (2 x unchanged chars / total chars) on chars (default), words or lines granularity, plus change stats.

Endpoints

URL	Transport	State	Latency	Checked
https://diffmint.mike-tusa.workers.dev/mcp	streamable-http	answering	55 ms	8 min ago

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DiffMint by Harlo — questions

Answers built from our own checks of this server.

What can DiffMint by Harlo do?

It exposes 3 tools, read directly from the server on our last check. Among them: apply_patch, diff_text, text_similarity. 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 DiffMint by Harlo working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 98 ms. The bar chart above shows every period we have measured.

How do I connect DiffMint by Harlo?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does DiffMint by Harlo need an API key?

No. DiffMint by Harlo completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is DiffMint by Harlo?

It answers our handshake in 98 ms on average, which is faster than 92% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.