tool-transcribai-mcp
Provides optional AI-generated image descriptions by sending extracted OCR text to OpenAI models (default gpt-4o-mini) to generate brief text summaries.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@tool-transcribai-mcptranscribe the text from this image and show the confidence levels"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
tool-transcribai-mcp
Servidor MCP (Model Context Protocol) para transcribir texto de imágenes con OCR local (tesseract.js, WASM, sin internet y sin gastar tokens) y generar descripciones breves con bajo consumo de tokens.
Compatible con ChatGPT, Claude, opencode, Cursor y cualquier cliente MCP.
Herramientas
Herramienta | Descripción |
| OCR local de una imagen → texto plano + bloques con su confianza |
| Lista las imágenes soportadas de un directorio (ruta y tamaño) |
| OCR + descripción breve opcional → Markdown, texto plano o JSON (puede guardar archivo) |
| Procesa todas las imágenes de una carpeta en lote, un archivo de salida por imagen |
Related MCP server: Mistral OCR MCP Server
Cómo funciona
OCR 100% local: tesseract.js corre dentro del servidor (WASM). La imagen nunca sale de tu máquina y no se consumen tokens.
Descripción IA opcional: si configuras una API key (
OPENAI_API_KEYoTOOL_TRANSCRIBAI_API_KEY),describeenvía solo el texto OCR (no la imagen) al modelo con un prompt corto (máx. 3 frases), minimizando tokens.Seguridad por defecto: toda ruta se resuelve contra
allowedRoot(path traversal bloqueado), con límites de tamaño (20 MB) y de lote (100 imágenes).
Uso con un cliente MCP
Configúralo con uvx, npx o la ruta directa al binario. Ejemplo con npx:
{
"mcpServers": {
"transcribai": {
"command": "npx",
"args": ["tool-transcribai-mcp"]
}
}
}O en modo local (tras npm install && npm run build):
{
"mcpServers": {
"transcribai": {
"command": "node",
"args": ["<ruta>/tool-transcribai-mcp/dist/index.js"]
}
}
}Modo Streamable HTTP (opcional)
TOOL_TRANSCRIBAI_HTTP=1 TOOL_TRANSCRIBAI_HTTP_PORT=3397 npm run startInstalación / desarrollo
npm install
npm run dev # servidor stdio con tsx
npm run build # compila a dist/
npm test # tests (Vitest)
npm run typecheckRequisitos: Node.js 18+.
Configuración
Variable | Defecto | Descripción |
|
| Directorio raíz permitido |
| 20 MB | Tamaño máximo por imagen |
| 100 | Máx. imágenes por carpeta |
| — | Datos de idioma Tesseract locales (offline) |
| — |
|
|
| Puerto del modo HTTP |
| — | API key para la descripción IA |
|
| Modelo de descripción |
Idiomas OCR
eng (defecto), spa, fra, deu, ita, por, nld, cat, eus, glg, ron, ces, pol, rus, ukr, tur, ara, hin, jpn, kor, chi_sim, chi_tra.
Licencia
MIT. Ver LICENSE.
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