How to Use the GovCon API MCP in LangChain

Chain together GovCon API calls in LangChain to build automated procurement research pipelines.

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Connect GovCon API MCP to LangChain

Create your Vinkius account to connect GovCon API to LangChain 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 GovCon API with LangChain

Ask AI about this MCP

ChatGPT

Claude

Perplexity

Build multi-step research chains with GovCon API

Feed the output of `search_government_contracts` directly into downstream tasks. You define the logic that decides which contract to audit next without manual intervention. Your agent manages the sequence of operations. It pulls raw data and formats it for your specific compliance requirements automatically.

Monitor GovCon API performance in LangChain

Pipe every tool execution into your existing tracing stack. You see exactly how `list_government_agencies` impacts your total chain latency. Debug your agent's reasoning path in real time. If a query fails, you catch the error at the specific link in the chain.

Aggregate data across the GovCon API

Combine this MCP server with your other databases in a single agent workflow. You bridge the gap between internal records and live federal opportunity data. Your agents handle the state between calls. You get a unified view of the procurement landscape without writing custom connectors.

Setup guide

Set up GovCon API MCP in LangChain

Prerequisites

Python 3.10+ installed
langchain-mcp-adapters + langgraph packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run pip install langchain-mcp-adapters langgraph langchain-openai. The MCP adapters package converts MCP tools into native LangChain BaseTool objects.
2

Connect via HTTP transport
Use MultiServerMCPClient with "transport": "http" pointing to your Vinkius endpoint. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Create a ReAct agent
Pass the discovered tools to create_react_agent() from LangGraph. The agent automatically routes GovCon API tool calls through the MCP protocol.
4

Run with any LLM
Swap ChatOpenAI for ChatAnthropic, ChatGoogleGenerativeAI, or any LangChain-compatible model. The MCP tools work identically across all providers.

agent.py

from langchain_mcp_adapters.client import MultiServerMCPClient
from langgraph.prebuilt import create_react_agent
from langchain_openai import ChatOpenAI

async with MultiServerMCPClient({
    "govcon-api-mcp": {
        "transport": "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,
    )
    result = await agent.ainvoke({
        "messages": "List recent GovCon API transactions"
    })
    print(result["messages"][-1].content)

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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 GovCon. 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.

Why Choose Vinkius

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Common questions about GovCon API MCP in LangChain

Install the MCP adapters and pass the server tools directly to your agent constructor. The agent handles the tool calls as discrete chain steps.

Yes. You can chain multiple search operations to filter results before passing them to the final analysis step.

Use the client session object to maintain context across multiple turns. This keeps your agent's history intact during long research tasks.

Hook the MCP tool output into your observability provider. You get granular metrics on every request sent to the server.

All traffic stays within your environment. The server only processes the specific contract IDs you provide during the agent's execution.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

OpenAI Agents SDK sdk-python

Google ADK sdk-python

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Vercel AI SDK sdk-typescript

Mastra AI sdk-typescript

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