What is the Model Context Protocol (MCP)?
MCP is a standard that allows LLM applications to communicate with external tools and data sources. This server implements an MCP interface for Dgraph.
Dgraph MCP Server
@johnymontana
Basic information
About Dgraph MCP Server
A Model Context Protocol (MCP) server implementation for Dgraph graph database, built using the [mcp-go](https://github.com/mark3labs/mcp-go) library.
Dgraph MCP Server config
No standard config provided
This server doesn't expose a parseable MCP config block in its README. See the repository for install instructions.
RepositoryDgraph MCP Server tools
Tool list not available yet
This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.
We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.
Overview
What is Dgraph MCP Server?
A Model Context Protocol (MCP) server that enables LLM applications to interact with a Dgraph graph database. It provides tools for executing DQL queries, performing mutations, altering the schema, and retrieving the current schema. Built using the mcp-go library and intended for developers using Dgraph with LLMs.
How to use Dgraph MCP Server?
- Clone the repository and install dependencies with
go mod download. - Set the
DGRAPH_HOSTenvironment variable (default:localhost:9080). - Run the server with
go run main.go. The server uses standard input/output for communication with LLM applications.
Key features of Dgraph MCP Server
- Execute DQL queries with optional variables.
- Perform RDF mutations with configurable commit behavior.
- Alter the Dgraph schema via schema definitions.
- Retrieve the current Dgraph schema as an MCP resource.
- Easy integration with any MCP‑compatible LLM framework.
Use cases of Dgraph MCP Server
- Querying a Dgraph graph database from an LLM application.
- Adding new nodes and relationships via mutations.
- Updating or extending the Dgraph schema on the fly.
- Exploring the current schema for context before generating queries.
- Automating graph database operations through natural language prompts.
Frequently asked questions
What are the prerequisites to run the server?
Go 1.18 or higher and a running Dgraph database (local or remote) are required.
Where does the Dgraph data live?
Data lives in the Dgraph database instance configured via the `DGRAPH_HOST` environment variable. The server itself does not store any data.
How does the server communicate with LLM applications?
It uses standard input/output (stdio) as the transport, making it compatible with any LLM framework that supports MCP over stdio.
How do I configure the Dgraph connection?
Set the `DGRAPH_HOST` environment variable to the gRPC address of your Dgraph instance (default: `localhost:9080`).
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