wren-engine vs restheart

Side-by-side comparison to help you pick between these two MCP servers.

	wren-engine by Canner	restheart by SoftInstigate
Stars	★ 661	★ 875
30d uses	—	—
Score	53	54
Official	—	—
Categories	AI / LLM ToolsDatabaseDeveloper Tools	DatabaseAI / LLM ToolsDeveloper Tools
Language	Java	Java
Last commit	this month	this month

wren-engine · Summary

An open context engine for AI agents that provides business context and semantic layer over data sources.

restheart · Summary

RESTHeart is a MongoDB backend that provides a native MCP server for AI agents to access data via REST and GraphQL APIs.

wren-engine · Use cases

Natural-language analytics with trusted business definitions
AI copilots that answer questions across governed enterprise data
Code assistants that need real business context, not just schema dumps

restheart · Use cases

AI agent backends for accessing MongoDB data via MCP
API development without boilerplate code
Real-time applications with WebSocket and SSE
Legacy modernization by adding modern APIs to existing MongoDB databases

wren-engine · Install

Installation

Through MCP

Clone the repository: git clone https://github.com/Canner/wren-engine
Navigate to the MCP server: cd wren-engine/mcp-server
Follow the setup instructions in the README

Through AI Agents

Follow the [Installation guide](https://docs.getwren.ai/oss/engine/get_started/installation)
Set up quickstart with [jaffle_shop example](https://docs.getwren.ai/oss/engine/get_started/quickstart)

Claude Desktop Configuration

Add to your Claude Desktop config.json:

{
  "mcpServers": {
    "wren": {
      "command": "uv",
      "args": ["run", "mcp-server", "serve"],
      "env": {
        "WREN_ENGINE_PATH": "/path/to/wren-engine"
      }
    }
  }
}

restheart · Install

Quick Start Options

**Option 1 — RESTHeart Cloud (no install)** Sign up for the fully managed service at [cloud.restheart.com](https://cloud.restheart.com/signup)

**Option 2 — Docker Compose (local)**

curl https://raw.githubusercontent.com/SoftInstigate/restheart/master/docker-compose.yml --output docker-compose.yml && docker compose up --attach restheart

Default credentials: admin / secret

**Option 3 — Native Executables** Download prebuilt binaries for macOS, Linux, and Windows from [docs/native-executables.md](https://github.com/SoftInstigate/restheart/blob/master/docs/native-executables.md)

**Claude Desktop Setup** In Claude Desktop settings, add a custom connector with context URL: https://sophia-api.restheart.com/mcp/restheart/

**Claude Code Setup**

claude mcp add --transport http sophia-restheart https://sophia-api.restheart.com/mcp/restheart

Comparison generated from public README + GitHub signals. Last updated automatically.