Text Diff MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 485 installs a week from npm. Last commit 2 Nov 2026.
Unified diffs of two texts: change hunks with context, plus added and removed line counts
Today is the operative word: we check Text Diff MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add text-diff-mcp -- npx -y @mrfentmen/text-diff-mcp
{
"mcpServers": {
"text-diff-mcp": {
"command": "npx",
"args": [
"-y",
"@mrfentmen/text-diff-mcp"
]
}
}
}
[mcp_servers.text-diff-mcp]
command = "npx"
args = ["-y", "@mrfentmen/text-diff-mcp"]
{
"mcpServers": {
"text-diff-mcp": {
"command": "npx",
"args": [
"-y",
"@mrfentmen/text-diff-mcp"
]
}
}
}
{
"servers": {
"text-diff-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@mrfentmen/text-diff-mcp"
]
}
}
}
Base-vs-head test result differ: named tests added, removed, and changed, never raw counts.
Diff two texts by line, word or char: unified diff, HTML redline, patch apply, similarity.
Create, check and apply unified diffs offline, with no shell and no repository needed
Compare two versions of a JSON row list: what was added, removed or changed, field by field.
Check web pages for changes since the last run, with lines added and removed
Forecasts for any US point, with context: alerts, what changed overnight, why, and history.
Compare text and code, show differences with context
Local, token-budgeted code context with file:line provenance and selection receipts.
Answers built from our own checks of this server.