Text Diff MCP tool

MCP findutils:text_diff

Line-by-line diff of two strings using LCS. Returns structured chunks (equal / added / removed) plus a unified-diff-style text block and tallies.

Needs an API key. Running a tool needs an API key. Keys are not for sale yet: ask for early access. About API keys

Open the tool Try it

Arguments

application/json

a

string required

Original text.
b

string required

Changed text.

Example arguments

Verified

{
  "a": "foo\nbar",
  "b": "foo\nbaz"
}

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claude mcp add findutils --transport http https://mcp.findutils.com/ --header "Authorization: Bearer YOUR_API_KEY"

{
  "mcpServers": {
    "findutils": {
      "url": "https://mcp.findutils.com/",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

curl -X POST https://mcp.findutils.com/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "text_diff",
      "arguments": {
        "a": "foo\nbar",
        "b": "foo\nbaz"
      }
    }
  }'

Also a REST endpoint

The same tool answers plain HTTP at POST /api/tools/text-diff/execute.

REST reference

Rate limit: 120 a minute, per IP
Auth: API key
REST id: text-diff
MCP name: text_diff
Category: Text
Machine-readable: openapi.json · markdown.md

Arguments

Example arguments

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