Caution
mcp-scala is currently under active development. Please note that current functionality may therefore be deprecated or changed in the future.
import io.circe.*
import mcp.schema.*
object StdioServer extends IOApp.Simple:
case class Input(
@Description("description for argument") argument: String
) derives JsonSchema, Decoder
private val tool = Tool[IO, Input](
"Tool Name",
"Tool Description",
request => IO(
CallToolResult.success(
Content.text(s"Hello ${request.argument}") :: Nil
)
)
)
override def run: IO[Unit] =
McpServer
.FastMcp[IO]("MCP Server Name", "0.1.0")
.addTool(tool)
.start("stdio")