Record · mcp-kotlin-sSDK / libraryOpen sourceVerified Sep 23, 2026

MCP Kotlin SDK (official)

The official Kotlin Multiplatform SDK for MCP, maintained with JetBrains.

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Sources and review

Checked against public documentation on September 23, 2026. Suitability guidance is our editorial judgment; this is not a performance benchmark or an endorsement.

Best for

Kotlin teams targeting several platforms from one MCP codebase.

About MCP Kotlin SDK (official)

The official MCP Kotlin SDK, maintained in collaboration with JetBrains, is a Kotlin Multiplatform library for implementing MCP clients and servers on the JVM, Native, JS and Wasm. It supports stdio, streamable HTTP, SSE and WebSocket transports and uses Ktor for HTTP.

MCP Kotlin SDK (official) is an open-source project written primarily in Kotlin, with 1.5k stars on GitHub. It was last updated in September 2026.

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MCP Kotlin SDK (official) vs. the alternatives

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