
ZeroEntropy Zerank MCP Server
Provides document reranking capabilities via the ZeroEntropy Zerank API, allowing AI assistants to sort documents by relevance to a user query through the Model Context Protocol.
README
ZeroEntropy Zerank MCP Server
A Model Context Protocol (MCP) server for document reranking using the ZeroEntropy Zerank API, now implemented in Node.js.
Features
- Document reranking using the ZeroEntropy Zerank API
- Input validation with Zod schemas
- Support for both standalone Node.js server and Cloudflare Workers deployment
- MCP protocol compliance for integration with AI assistants
Installation
npm install
Usage
Standalone Node.js Server
Run the MCP server using stdio transport:
npm start
Or for development with auto-reload:
npm run dev
Cloudflare Workers Deployment
- Install Wrangler CLI:
npm install -g wrangler
- Login to Cloudflare:
wrangler login
- Deploy the worker:
wrangler deploy
API
The server provides one tool:
get_reranking
Reranks a list of documents based on relevance to a query.
Parameters:
query
(string): The search query (1-10000 characters)documents
(array): Array of documents to rerank (1-1000 items)api_key
(string): ZeroEntropy API key
Returns:
results
(array): Array of reranked results withindex
andrelevance_score
Example:
{
"query": "machine learning algorithms",
"documents": [
"Neural networks are a type of machine learning model",
"Cooking recipes for pasta dishes",
"Supervised learning techniques in AI"
],
"api_key": "your-api-key"
}
Environment
- Node.js 18.0.0 or higher
- ZeroEntropy API access
License
MIT
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