Add Web Search to Managed Deep Agents for free with One MCP Config
This guide demonstrates how to enhance Managed Deep Agents by integrating external web search capabilities using the LangSmith platform. By configuring a Managed Connector Platform (MCP) connection to the built-in Parallel search server, agents can augment their internal knowledge base (e.g., internal documentation) with real-time, external web data. This process is straightforward, requiring only an MCP configuration update, and the resulting agent can be deployed and monitored in LangSmith Studio to inspect the combined tool calls.
Key takeaways
-
Integrating Web Search via MCP
1:40
Web search is added to a Managed Deep Agent by configuring the Parallel search server as an MCP connection to the LangSmith platform. Since the server is hosted within LangSmith, no additional authentication is required.
-
Agent Capability Enhancement
2:16
An agent initially limited to internal documentation (e.g., 'search docs') can be upgraded to use web search, allowing it to provide a more comprehensive answer by comparing internal knowledge with open internet information.
-
Monitoring Tool Calls in Production
3:44
After deploying the agent to LangSmith, tool calls (including both internal search docs and external web search) can be inspected in LangSmith Studio, confirming the agent's ability to perform searches related to the query, even if not explicitly asked for.