go-mcp-sdk-client

go-mcp-sdk-client.go

import (
  "context"
  "log"
  "os/exec"

  "github.com/modelcontextprotocol/go-sdk/mcp"
)

func main() {
  ctx := context.Background()
  client := mcp.NewClient(&mcp.Implementation{Name: "my-client", Version: "v0.1.0"}, nil)
  transport := &mcp.CommandTransport{Command: exec.Command("line-counter-binary")}
  session, err := client.Connect(ctx, transport, nil)
  if err != nil {
    log.Fatal(err)
  }
  defer session.Close()

  params := &mcp.CallToolParams{
    Name:      "count_lines",
    Arguments: map[string]any{"file_path": "/tmp/foo.txt"},
  }
  res, err := session.CallTool(ctx, params)
  if err != nil {
    log.Fatalf("CallTool failed: %v", err)
  }
  if res.IsError {
    log.Fatalf("Tool reported error")
  }
  for _, c := range res.Content {
    // extract typed content
    if o, ok := c.(*mcp.TextContent); ok {
      log.Print(o.Text)
    }
  }
}