# Diff Checker — Line-by-Line Text Comparison

> Diff Checker — Line-by-Line Text Comparison — axel-belfort-diff-checker. Use this tool when you need to compare two texts line-by-line to identify additions, deletions, and unchanged lines. It solves problems in code review, document versioning, change tracking, and content comparison by providing a structured diff output with summary statistics. The tool takes two texts as input and returns a diff array, added, removed, and changed counts, making it ideal for use cases requiring precise text comparison.

Canonical page: https://skillsregistry.net/skills/axel-belfort-diff-checker  
JSON: https://api.skillsregistry.net/v1/skills/axel-belfort-diff-checker

## Description

Text diff comparison API for AI agents. Compare two texts line-by-line: additions, deletions, unchanged lines, and summary statistics (added/removed/changed counts).

Tools: text_compare_diff.

Use this for code review, document versioning, change tracking, or content comparison. Returns structured diff ready for rendering.

Returns: {diff[], added, removed, changed}. No API key required — x402 micropayment $0.002/call on Base L2.

## Trust

- **Trust score (0–1):** 0.72
- **Verification tier:** verified
- **Last scanned:** 2026-08-30

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** finance
- **Updated:** 2026-08-30

## Source

- **Source listing:** [Smithery](https://smithery.ai/server/axel-belfort/diff-checker)
- **Repository:** <https://github.com/Br0ski777/diff-checker-x402>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "axel-belfort-diff-checker"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/axel-belfort-diff-checker` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/axel-belfort-diff-checker/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt