Transports changedspecification/2025-11-25/basic/transports

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11# Transports

3<div id="enable-section-numbers" />

53MCP uses JSON-RPC to encode messages. JSON-RPC messages **MUST** be UTF-8 encoded.

75The protocol currently defines two standard transport mechanisms for client-server

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4947

5048## Streamable HTTP

5149

52<Info>

53 This replaces the [HTTP+SSE

54 transport](/specification/2024-11-05/basic/transports#http-with-sse) from

55 protocol version 2024-11-05. See the [backwards compatibility](#backwards-compatibility)

56 guide below.

57</Info>

50> [!NOTE]

51>

52> This replaces the [HTTP+SSE

53> transport](/specification/2024-11-05/basic/transports#http-with-sse) from

54> protocol version 2024-11-05. See the [backwards compatibility](#backwards-compatibility)

55> guide below.

5856

5957In the **Streamable HTTP** transport, the server operates as an independent process that

6058can handle multiple client connections. This transport uses HTTP POST and GET requests.