Package io.vertx.ext.mcp.transport

Class VertxMcpStreamableServerTransportProvider

java.lang.Object

io.vertx.ext.mcp.transport.VertxMcpStreamableServerTransportProvider

All Implemented Interfaces:

io.modelcontextprotocol.spec.McpServerTransportProviderBase, io.modelcontextprotocol.spec.McpStreamableServerTransportProvider, VertxMcpTransport

public class VertxMcpStreamableServerTransportProvider
extends Object
implements io.modelcontextprotocol.spec.McpStreamableServerTransportProvider, VertxMcpTransport

Implementation of a Vert.x based Streamable HTTP transport provider for MCP. This implementation follows the MCP 2025-06-18 specification for Streamable HTTP transport, which consolidates the previous HTTP+SSE transport into a single endpoint that supports both POST and GET methods. Created By Navíd Mitchell 🤪on 8/11/25

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	VertxMcpStreamableServerTransportProvider.VertxMcpStreamableServerTransportProviderBuilder

Field Summary

Fields

Modifier and Type	Field	Description
static final String	MESSAGE_EVENT_TYPE

Constructor Summary

Constructors

Constructor	Description
VertxMcpStreamableServerTransportProvider(com.fasterxml.jackson.databind.ObjectMapper objectMapper, String mcpEndpoint, boolean disallowDelete, io.vertx.core.Vertx vertx, Duration keepAliveInterval)

Method Summary

Modifier and Type	Method	Description
static VertxMcpStreamableServerTransportProvider.VertxMcpStreamableServerTransportProviderBuilder	builder()
reactor.core.publisher.Mono<Void>	closeGracefully()	Close the Vert.x MCP transport gracefully.
io.vertx.ext.web.Router	getRouter()	Get the router for the Vert.x MCP transport.
reactor.core.publisher.Mono<Void>	notifyClients(String method, Object params)
List<String>	protocolVersions()
void	setSessionFactory(io.modelcontextprotocol.spec.McpStreamableServerSession.Factory sessionFactory)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.modelcontextprotocol.spec.McpStreamableServerTransportProvider

close

Field Details

MESSAGE_EVENT_TYPE

public static final String MESSAGE_EVENT_TYPE

See Also:

• Constant Field Values

Constructor Details

VertxMcpStreamableServerTransportProvider

public VertxMcpStreamableServerTransportProvider(com.fasterxml.jackson.databind.ObjectMapper objectMapper,
 String mcpEndpoint,
 boolean disallowDelete,
 io.vertx.core.Vertx vertx,
 Duration keepAliveInterval)

Method Details

getRouter

public io.vertx.ext.web.Router getRouter()

Description copied from interface: VertxMcpTransport

Get the router for the Vert.x MCP transport.

Specified by:

getRouter in interface VertxMcpTransport

Returns:

The router for the Vert.x MCP transport.

protocolVersions

public List<String> protocolVersions()

Specified by:

protocolVersions in interface io.modelcontextprotocol.spec.McpServerTransportProviderBase

setSessionFactory

public void setSessionFactory(io.modelcontextprotocol.spec.McpStreamableServerSession.Factory sessionFactory)

Specified by:

setSessionFactory in interface io.modelcontextprotocol.spec.McpStreamableServerTransportProvider

notifyClients

public reactor.core.publisher.Mono<Void> notifyClients(String method,
 Object params)

Specified by:

notifyClients in interface io.modelcontextprotocol.spec.McpServerTransportProviderBase

Specified by:

notifyClients in interface io.modelcontextprotocol.spec.McpStreamableServerTransportProvider

closeGracefully

public reactor.core.publisher.Mono<Void> closeGracefully()

Description copied from interface: VertxMcpTransport

Close the Vert.x MCP transport gracefully.

Specified by:

closeGracefully in interface io.modelcontextprotocol.spec.McpServerTransportProviderBase

Specified by:

closeGracefully in interface io.modelcontextprotocol.spec.McpStreamableServerTransportProvider

Specified by:

closeGracefully in interface VertxMcpTransport

Returns:

A Mono that completes when the transport is closed.

builder

public static VertxMcpStreamableServerTransportProvider.VertxMcpStreamableServerTransportProviderBuilder builder()