How to Use the lemon.markets MCP in LlamaIndex

Q: How do I load lemon.markets tools into LlamaIndex?

Install llama-index-tools-mcp and initialize the BasicMCPClient. Wrap it in McpToolSpec and call totoollistasync to export the tools directly to your FunctionAgent.

Q: Can LlamaIndex index my lemon.markets order history?

Yes. You can fetch your transaction history using listbrokerageorders and ingest the resulting document list directly into a vector index for semantic search and retrieval.

Q: How do I search for European stocks using LlamaIndex?

Your agent uses the searchmarketinstruments tool to query ISINs or company names on lemon.markets. The results are returned as structured data that LlamaIndex can immediately index or reason about.

Index live lemon.markets data directly into your LlamaIndex vector store for context-aware European stock trading.

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Connect lemon.markets MCP to LlamaIndex

Create your Vinkius account to connect lemon.markets to LlamaIndex and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup lemon.markets with LlamaIndex

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Build a searchable knowledge base of your stock positions

LlamaIndex doesn't just run tools; it indexes what they return. When your agent queries `list_active_positions`, the resulting portfolio data is stored in your index so you can run semantic queries over your actual holdings. This means you can ask your agent about your exposure to specific sectors without manually parsing raw JSON. The agent queries your local index first, reducing the need to constantly ping the API.

Ground LlamaIndex trade decisions in real-time quotes

Stop letting your agent trade on old information. By connecting this MCP Server, LlamaIndex pulls live bid/ask prices with `get_latest_quote` to verify execution costs before writing a trade to the ledger. The agent cross-references these fresh quotes with historical data in your vector store. You get trading decisions grounded in actual market numbers, avoiding execution errors from stale data.

Query your lemon.markets order history with RAG

Use LlamaIndex RAG pipelines with this MCP Server to analyze your past trading patterns. The agent retrieves your transaction history via `list_brokerage_orders` and indexes the results, turning your past executions into a searchable dataset. You can ask why a specific trade was made or check if you have any open orders. If an order is stuck, the agent can find it in the index and call `cancel_open_order` to clear the queue.

Setup guide

Set up lemon.markets MCP in LlamaIndex

Prerequisites

Python 3.10+ installed
llama-index-tools-mcp package
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run pip install llama-index-tools-mcp llama-index-llms-openai. The MCP tools package provides BasicMCPClient and McpToolSpec.
2

Connect with BasicMCPClient
Point BasicMCPClient to your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. Supports SSE and Streamable HTTP transports.
3

Convert to LlamaIndex tools
Call mcp_tool_spec.to_tool_list_async() to convert all lemon.markets MCP tools into native FunctionTool objects that any LlamaIndex agent can use.
4

Run with any LLM
Create a FunctionAgent with the tools and your preferred LLM. Swap OpenAI for Anthropic, Gemini, or any LlamaIndex-supported provider.

agent.py

from llama_index.tools.mcp import BasicMCPClient, McpToolSpec
from llama_index.core.agent.workflow import FunctionAgent
from llama_index.llms.openai import OpenAI

# Connect to the MCP
mcp_client = BasicMCPClient(
    "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
)
mcp_tool_spec = McpToolSpec(client=mcp_client)

# Convert MCP tools to LlamaIndex tools
tools = await mcp_tool_spec.to_tool_list_async()

# Create and run the agent
agent = FunctionAgent(
    tools=tools,
    llm=OpenAI(model="gpt-4o"),
    system_prompt="You have access to lemon.markets tools.",
)
response = await agent.run("List recent lemon.markets data")

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by lemon.markets. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about lemon.markets MCP in LlamaIndex

Install `llama-index-tools-mcp` and initialize the `BasicMCPClient`. Wrap it in `McpToolSpec` and call `to_tool_list_async` to export the tools directly to your `FunctionAgent`.

Yes. You can fetch your transaction history using `list_brokerage_orders` and ingest the resulting document list directly into a vector index for semantic search and retrieval.

Your agent uses the `search_market_instruments` tool to query ISINs or company names on lemon.markets. The results are returned as structured data that LlamaIndex can immediately index or reason about.

Yes, lemon.markets uses a two-step order flow. Your agent must first call `place_new_order` and then invoke `activate_pending_order` to execute the trade.

Your financial data, including active positions and brokerage account details, is processed entirely within your local LlamaIndex runtime. Vinkius secures the connection endpoint, ensuring your private trading data is never cached or stored on external servers.

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