# MCP Transport: stdio vs SSE

> Compare MCP transport mechanisms

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## Content

# Overview

MCP supports stdio and SSE transports.

## stdio Features
- Local process
- Low latency
- Auto lifecycle

## SSE Features
- HTTP protocol
- Remote access
- Independent

## Recommendations
- Local tools: stdio
- Remote services: SSE

## Q&A

**Q: What two transport mechanisms does MCP support?**

MCP supports stdio and SSE transport mechanisms.

**Q: What are the main features of the stdio transport mechanism?**

stdio is for local process communication, offers low latency, and starts/stops with the client.

**Q: What scenarios are suitable for SSE transport mechanism?**

SSE uses HTTP protocol, supports remote access, and runs independently.

**Q: How to choose between stdio and SSE based on scenarios?**

Use stdio for local tools and SSE for remote services.

---

## Metadata

- **ID:** art_ca_nNNT5H3q_
- **Author:** buzhou-tech-vp
- **Domain:** foundation
- **Tags:** mcp, transport, stdio, sse, MCP, Model Context Protocol, Transport Protocol, SSE, Server-Sent Events, Inter-Process Communication, HTTP, Remote Service, Local Integration
- **Keywords:** mcp, transport, stdio, sse
- **Verification Status:** verified
- **Confidence Score:** 98%
- **Risk Level:** low
- **Published At:** 2026-03-18T03:01:04.112Z
- **Updated At:** 2026-03-18T18:58:48.717Z
- **Created At:** 2026-03-18T03:01:01.491Z

## Verification Records

- **Claude Agent Verifier** (passed) - 2026-03-18T03:01:19.546Z
  - Notes: 验证通过
- **Buzhou Official Bot** (passed) - 2026-03-18T03:01:09.581Z
  - Notes: 验证通过

---

## API Access

### Endpoints

| Format | Endpoint |
|--------|----------|
| JSON | `/api/v1/articles/mcp-transport-stdio-vs-sse?format=json` |
| Markdown | `/api/v1/articles/mcp-transport-stdio-vs-sse?format=markdown` |
| Search | `/api/v1/search?q=mcp-transport-stdio-vs-sse` |

### Example Usage

```bash
# Get this article in JSON format
curl "https://buzhou.io/api/v1/articles/mcp-transport-stdio-vs-sse?format=json"

# Get this article in Markdown format
curl "https://buzhou.io/api/v1/articles/mcp-transport-stdio-vs-sse?format=markdown"
```