# word-aligner

Builds visual word-alignment diagrams between source sentences and translations. Useful for language study, linguistics glosses, and grammar notes.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 5
- Author: tinygodsdev
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/tinygodsdev/bitext-word-alignment
- Updated: 2026-10-20
- HTML: https://affpapa.org/en/nevibecode/mcp/word-aligner

## What it does

The server connects over Streamable HTTP. It requires no credentials and supplies a single tool called `create_word_alignment`. When you ask an agent to inspect a sentence against its translation, the tool maps matching tokens. It outputs an image preview along with a URL storing the full alignment state inside a query parameter.

The resulting visualization clarifies reordered phrasing, omissions, and split words. The diagram accepts auxiliary lines for Leipzig interlinear glossing or phonetic transcriptions. Layout options handle right-to-left scripts such as Hebrew and Arabic, alongside vertical arrangements for Japanese or traditional Mongolian.

Because execution happens remotely on `https://aligner.tinygods.dev/mcp`, the tool breaks whenever the public endpoint goes offline.

## Requirements
- Remote server: `https://aligner.tinygods.dev/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http word-aligner https://aligner.tinygods.dev/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add word-aligner --url https://aligner.tinygods.dev/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "word-aligner": {
            "url": "https://aligner.tinygods.dev/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "word-aligner": {
            "type": "http",
            "url": "https://aligner.tinygods.dev/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http word-aligner https://aligner.tinygods.dev/mcp
```

## When to use it
- generate word-level alignment diagrams for bilingual sentences
- stack morpheme glosses and phonetic transcriptions into the diagram
- display correspondences across RTL and vertical scripts
- share interactive translation links without creating an account

## Example prompts
- Align Turkish words with their English translation and add an IPA tier.
- Generate a vertical word-alignment diagram for this Japanese sentence.

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