Modrinth MCP Server for LangChain 10 tools — connect in under 2 minutes
LangChain is the leading Python framework for composable LLM applications. Connect Modrinth through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent
async def main():
# Your Vinkius token. get it at cloud.vinkius.com
async with MultiServerMCPClient({
"modrinth": {
"transport": "streamable_http",
"url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
}
}) as client:
tools = client.get_tools()
agent = create_react_agent(
ChatOpenAI(model="gpt-4o"),
tools,
)
response = await agent.ainvoke({
"messages": [{
"role": "user",
"content": "Using Modrinth, show me what tools are available.",
}]
})
print(response["messages"][-1].content)
asyncio.run(main())
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About Modrinth MCP Server
Connect to the Modrinth ecosystem through your AI agent to discover and manage Minecraft mods, resource packs, and plugins using natural conversation.
LangChain's ecosystem of 500+ components combines seamlessly with Modrinth through native MCP adapters. Connect 10 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
What you can do
- Project Discovery — Search for projects using advanced filters for game versions, loaders, and categories.
- Version Management — List all available versions for any project and get detailed download links and metadata.
- Dependency Tracking — Automatically identify other projects that a mod depends on to function correctly.
- User & Team Insights — View public profiles, search for creators, and list team members for any project.
- Community Metrics — Monitor project popularity by listing followers and viewing detailed metadata including download counts.
- Direct Download Info — Access specific version files, hashes, and loader compatibility details.
The Modrinth MCP Server exposes 10 tools through the Vinkius. Connect it to LangChain in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect Modrinth to LangChain via MCP
Follow these steps to integrate the Modrinth MCP Server with LangChain.
Install dependencies
Run pip install langchain langchain-mcp-adapters langgraph langchain-openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the agent
Save the code and run python agent.py
Explore tools
The agent discovers 10 tools from Modrinth via MCP
Why Use LangChain with the Modrinth MCP Server
LangChain provides unique advantages when paired with Modrinth through the Model Context Protocol.
The largest ecosystem of integrations, chains, and agents. combine Modrinth MCP tools with 500+ LangChain components
Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
Memory and conversation persistence let agents maintain context across Modrinth queries for multi-turn workflows
Modrinth + LangChain Use Cases
Practical scenarios where LangChain combined with the Modrinth MCP Server delivers measurable value.
RAG with live data: combine Modrinth tool results with vector store retrievals for answers grounded in both real-time and historical data
Autonomous research agents: LangChain agents query Modrinth, synthesize findings, and generate comprehensive research reports
Multi-tool orchestration: chain Modrinth tools with web scrapers, databases, and calculators in a single agent run
Production monitoring: use LangSmith to trace every Modrinth tool call, measure latency, and optimize your agent's performance
Modrinth MCP Tools for LangChain (10)
These 10 tools become available when you connect Modrinth to LangChain via MCP:
get_project
Get detailed Modrinth project info
get_project_dependencies
Get project dependencies
get_team_members
List project team members
get_user_profile
Get user profile info
get_version
Get specific version details
list_project_followers
List project followers
list_user_projects
List projects by a user
list_versions
List versions of a Modrinth project
search_projects
You can include game versions (e.g., 1.20.1) or loaders (e.g., Fabric) in your query. Search for Minecraft projects on Modrinth
search_users
Search for Modrinth users
Example Prompts for Modrinth in LangChain
Ready-to-use prompts you can give your LangChain agent to start working with Modrinth immediately.
"Search for optimization mods for Minecraft 1.20.1 using Fabric."
"Who are the developers of the Sodium mod?"
"What does the 'Iris Shaders' mod depend on?"
Troubleshooting Modrinth MCP Server with LangChain
Common issues when connecting Modrinth to LangChain through the Vinkius, and how to resolve them.
MultiServerMCPClient not found
pip install langchain-mcp-adaptersModrinth + LangChain FAQ
Common questions about integrating Modrinth MCP Server with LangChain.
How does LangChain connect to MCP servers?
langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.Which LangChain agent types work with MCP?
Can I trace MCP tool calls in LangSmith?
Connect Modrinth with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Modrinth to LangChain
Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.