Package dev.langchain4j.mcp.client

Interface McpClient

All Superinterfaces:
AutoCloseable
All Known Implementing Classes:
DefaultMcpClient
public interface McpClient extends AutoCloseable
Represents a client that can communicate with an MCP server over a given transport protocol, retrieve and execute tools using the server.

  • Method Details

    • listTools

      List<ToolSpecification> listTools()
      Obtains a list of tools from the MCP server.

    • executeTool

      String executeTool(ToolExecutionRequest executionRequest)
      Executes a tool on the MCP server and returns the result as a String. Currently, this expects a tool execution to only contain text-based results.

    • listResources

      List<ResourceRef> listResources()
      Obtains the current list of resources available on the MCP server.

    • listResourceTemplates

      List<ResourceTemplateRef> listResourceTemplates()
      Obtains the current list of resource templates (dynamic resources) available on the MCP server.

    • readResource

      ResourceResponse readResource(String uri)
      Retrieves the contents of the resource with the specified URI. This also works for dynamic resources (templates).