Colpali MCP Server - Python

@camillebrl

代码仓库

基本信息

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其他

许可证

MIT license

传输方式

stdio

作者

camillebrl

关于 Colpali MCP Server - Python

mcp server for Colpali (text-rich images) retrieval

Colpali MCP Server - Python 配置

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代码仓库

Colpali MCP Server - Python 工具

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概览

What is Colpali MCP Server - Python?

Colpali MCP Server - Python is an MCP server for semantic image retrieval using ColPali and Elasticsearch. It indexes images or PDF pages and enables natural language search queries against the indexed content.

How to use Colpali MCP Server - Python?

Install by cloning the repository and running make install. Configure the server in your MCP client's mcp.json with the path to start_server.sh and environment variables for Elasticsearch (ES_HOST, ES_USER, ES_PASSWORD). The server exposes four tools: search_images, index_image, get_index_stats, and clear_index.

Key features of Colpali MCP Server - Python

Semantic image search using natural language queries
Automatic indexing of images and PDFs
Multimodal embeddings combining vision and language (ColPali)
Scalable storage with Elasticsearch
Standard MCP API compatible with any MCP client

Use cases of Colpali MCP Server - Python

Search for diagrams or schemas in a document database
Index and retrieve screenshots by textual description
Enable multimodal search across PDF archives
Build AI‑powered image retrieval systems for RAG workflows

常见问题

What dependencies are required?

Python 3.10+, Elasticsearch 8.0+, and a GPU is recommended for ColPali (though it also works on CPU).

Where are the image embeddings stored?

Embeddings and metadata are stored in Elasticsearch, accessed via the configured `ES_HOST`, `ES_USER`, and `ES_PASSWORD`.

How are images indexed?

Use the `index_image` tool to index images one by one (batch size of 1). PDFs can be indexed page by page by calling the tool for each page.

Is the clear_index tool reversible?

No, `clear_index` is irreversible and permanently removes all indexed data.

How is authentication handled?

Authentication is via the `ES_USER` and `ES_PASSWORD` environment variables passed to the server at startup.

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