| Filename | Latest commit message | Latest commit date |
|---|---|---|
a967df1eacBumps [org.jetbrains.kotlinx:kotlinx-coroutines-test](https://github.com/Kotlin/kotlinx.coroutines) from 1.10.2 to 1.11.0. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/Kotlin/kotlinx.coroutines/releases">org.jetbrains.kotlinx:kotlinx-coroutines-test's releases</a>.</em></p> <blockquote> <h2>1.11.0</h2> <h3>Various</h3> <ul> <li>Kotlin was updated to 2.2.20 (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4545">#4545</a>).</li> <li>Improved the published jar files (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/3842">#3842</a>, <a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4599">#4599</a>).</li> <li>Various documentation improvements, including complete rewrites of structured concurrency and error handling-related KDoc (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4433">#4433</a>, <a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4596">#4596</a>).</li> </ul> <h3>Breaking changes and deprecations</h3> <ul> <li>Moved <code>Promise</code>-related functions from JS and Wasm/JS to the new <code>web</code> target. On Wasm/JS, this is a breaking change. Before the change, <code>Promise</code> on Wasm/JS could work with arbitrary Kotlin types, but now, only <code>JsAny</code> subtypes are accepted (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4563">#4563</a>).</li> <li>Changed handling of coroutine exceptions that can't be propagated on JS and Wasm/JS. B efore, exceptions were logged, but now, they are reported to the JS runtime (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4451">#4451</a>, <a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4631">#4631</a>).</li> <li>Deprecated using <code>CoroutineDispatcher</code> as the coroutine context key; now, <code>ContinuationInterceptor</code> has to be used instead (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4333">#4333</a>).</li> <li>Advanced the deprecation levels on <code>kotlinx-coroutines-test</code> APIs (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4604">#4604</a>).</li> <li>Added lint functions that mark passing a <code>Job</code> to coroutine builders as deprecated (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4435">#4435</a>).</li> </ul> <h3>Bug fixes and improvements</h3> <ul> <li>Added a <code>callsInPlace(EXACTLY_ONCE)</code> contract to <code>runBlocking</code> in code shared between JVM and Native (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4368">#4368</a>).</li> <li>Added a <code>callsInPlace(EXACTLY_ONCE)</code> contract to <code>suspendCancellableCoroutine</code> (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4574">#4574</a>).</li> <li>Fixed <code>flowOn</code> incorrectly handling <code>ThreadContextElement</code> updates (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4403">#4403</a>).</li> <li>Fixed exceptions in user-supplied <code>Thread.UncaughtExceptionHandler</code> instances causing the internal coroutines machinery to fail (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4516">#4516</a>).</li> <li>Fixed <code>CoroutineDispatcher.asScheduler</code> in the RxJava integration not cancelling outstanding work when a <code>Worker</code> gets cancelled, which led to memory leaks in some scenarios (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4615">#4615</a>).</li> <li>Fixed <code>SharedFlow</code> entering an invalid state when a subscriber and an emitter are cancelled simultaneously (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4583">#4583</a>).</li> <li>Fixed an R8 optimization leading to <code>shareIn</code>/<code>stateIn</code> coroutines getting garbage-collected (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4646">#4646</a>). Thanks, <a href="https://github.com/solevic"><code>@solevic</code></a>!</li> </ul> <h3>Small additions</h3> <ul> <li>Added <code>CompletableDeferred.asDeferred</code> for obtaining a read-only <code>Deferred</code> view (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4408">#4408</a>).</li> <li>Added <code>SharedFlow.asFlow</code> for obtaining a <code>Flow</code> view with hidden hot flow semantics (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4530">#4530</a>). Thanks, <a href="https://github.com/g000sha256"><code>@g000sha256</code></a>!</li> <li>Added a <code>StateFlow.collectLatest</code> overload returning <code>Nothing</code> to assist with finding unreachable code (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4454">#4454</a>).</li> <li>Added <code>ReceiveChannel.consumeTo</code> for consuming a <code>ReceiveChannel</code> into a <code>MutableCollection</code> (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4520">#4520</a>).</li> <li>Added a <code>StateFlow<T>.onSubscription</code> overload returning a <code>StateFlow<T></code>, similar to <code>SharedFlow<T>.onSubscription</code> returning <code>SharedFlow<T></code> (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4275">#4275</a>). Thanks, <a href="https://github.com/xit0c"><code>@xit0c</code></a>!</li> <li>Added terminal <code>Flow</code> operators for collecting a <code>Flow</code> to a <code>Map</code> (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/1541">#1541</a>).</li> </ul> <h3>Changelog relative to version 1.11.0</h3> <p>No changes, only the version is increased.</p> <h2>1.11.0-rc02</h2> <p>Restored binary compatibility with 1.10.2 and older versions on Wasm/JS for usages of <code>Promise</code>-related functions (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4661">#4661</a>).</p> <h2>1.11.0-rc01</h2> <h3>Various</h3> <ul> <li>Kotlin was updated to 2.2.20 (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4545">#4545</a>).</li> <li>Improved the published jar files (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/3842">#3842</a>, <a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4599">#4599</a>).</li> <li>Various documentation improvements, including complete rewrites of structured concurrency and error handling-related KDoc (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4433">#4433</a>, <a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4596">#4596</a>).</li> </ul> <h3>Breaking changes and deprecations</h3> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/Kotlin/kotlinx.coroutines/blob/master/CHANGES.md">org.jetbrains.kotlinx:kotlinx-coroutines-test's changelog</a>.</em></p> <blockquote> <h2>Version 1.11.0</h2> <h3>Various</h3> <ul> <li>Kotlin was updated to 2.2.20 (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4545">#4545</a>).</li> <li>Improved the published jar files (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/3842">#3842</a>, <a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4599">#4599</a>).</li> <li>Various documentation improvements, including complete rewrites of structured concurrency and error handling-related KDoc (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4433">#4433</a>, <a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4596">#4596</a>).</li> </ul> <h3>Breaking changes and deprecations</h3> <ul> <li>Moved <code>Promise</code>-related functions from JS and Wasm/JS to the new <code>web</code> target. On Wasm/JS, this is a breaking change. Before the change, <code>Promise</code> on Wasm/JS could work with arbitrary Kotlin types, but now, only <code>JsAny</code> subtypes are accepted (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4563">#4563</a>).</li> <li>Changed handling of coroutine exceptions that can't be propagated on JS and Wasm/JS. Before, exceptions were logged, but now, they are reported to the JS runtime (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4451">#4451</a>, <a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4631">#4631</a>).</li> <li>Deprecated using <code>CoroutineDispatcher</code> as the coroutine context key; now, <code>ContinuationInterceptor</code> has to be used instead (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4333">#4333</a>).</li> <li>Advanced the deprecation levels on <code>kotlinx-coroutines-test</code> APIs (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4604">#4604</a>).</li> <li>Added lint functions that mark passing a <code>Job</code> to coroutine builders as deprecated (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4435">#4435</a>).</li> </ul> <h3>Bug fixes and improvements</h3> <ul> <li>Added a <code>callsInPlace(EXACTLY_ONCE)</code> contract to <code>runBlocking</code> in code shared between JVM and Native (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4368">#4368</a>).</li> <li>Added a <code>callsInPlace(EXACTLY_ONCE)</code> contract to <code>suspendCancellableCoroutine</code> (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4574">#4574</a>).</li> <li>Fixed <code>flowOn</code> incorrectly handling <code>ThreadContextElement</code> updates (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4403">#4403</a>).</li> <li>Fixed exceptions in user-supplied <code>Thread.UncaughtExceptionHandler</code> instances causing the internal coroutines machinery to fail (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4516">#4516</a>).</li> <li>Fixed <code>CoroutineDispatcher.asScheduler</code> in the RxJava integration not cancelling outstanding work when a <code>Worker</code> gets cancelled, which led to memory leaks in some scenarios (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4615">#4615</a>).</li> <li>Fixed <code>SharedFlow</code> entering an invalid state when a subscriber and an emitter are cancelled simultaneously (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4583">#4583</a>).</li> <li>Fixed an R8 optimization leading to <code>shareIn</code>/<code>stateIn</code> coroutines getting garbage-collected (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4646">#4646</a>). Thanks, <a href="https://github.com/solevic"><code>@solevic</code></a>!</li> </ul> <h3>Small additions</h3> <ul> <li>Added <code>CompletableDeferred.asDeferred</code> for obtaining a read-only <code>Deferred</code> view (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4408">#4408</a>).</li> <li>Added <code>SharedFlow.asFlow</code> for obtaining a <code>Flow</code> view with hidden hot flow semantics (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4530">#4530</a>). Thanks, <a href="https://github.com/g000sha256"><code>@g000sha256</code></a>!</li> <li>Added a <code>StateFlow.collectLatest</code> overload returning <code>Nothing</code> to assist with finding unreachable code (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4454">#4454</a>).</li> <li>Added <code>ReceiveChannel.consumeTo</code> for consuming a <code>ReceiveChannel</code> into a <code>MutableCollection</code> (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4520">#4520</a>).</li> <li>Added a <code>StateFlow<T>.onSubscription</code> overload returning a <code>StateFlow<T></code>, similar to <code>SharedFlow<T>.onSubscription</code> returning <code>SharedFlow<T></code> (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4275">#4275</a>). Thanks, <a href="https://github.com/xit0c"><code>@xit0c</code></a>!</li> <li>Added terminal <code>Flow</code> operators for collecting a <code>Flow</code> to a <code>Map</code> (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/1541">#1541</a>).</li> </ul> <h3>Changelog relative to version 1.11.0</h3> <p>No changes, only the version is increased.</p> <h2>Version 1.11.0-rc02</h2> <p>Restored binary compatibility with 1.10.2 and older versions on Wasm/JS for usages of <code>Promise</code>-related functions (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4661">#4661</a>).</p> <h2>Version 1.11.0-rc01</h2> <h3>Various</h3> <ul> <li>Kotlin was updated to 2.2.20 (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4545">#4545</a>).</li> <li>Improved the published jar files (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/3842">#3842</a>, <a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4599">#4599</a>).</li> <li>Various documentation improvements, including complete rewrites of structured concurrency and error handling-related KDoc (<a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4433">#4433</a>, <a href="https://redirect.github.com/Kotlin/kotlinx.coroutines/issues/4596">#4596</a>).</li> </ul> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Commits</summary> <ul> <li><a href=" |
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| .. | ||
| kotlin-mcp-client | ||
| kotlin-mcp-server | ||
| kotlinlang-mcp-server | ||
| notebooks | ||
| simple-streamable-server | ||
| weather-stdio-server | ||
| README.md | ||
Kotlin MCP SDK Samples
Runnable projects demonstrating MCP server and client implementations with the Kotlin MCP SDK. For background on the protocol itself, see the MCP documentation.
Overview
| Sample | Type | Transport | MCP Features |
|---|---|---|---|
| simple-streamable-server | Server | Streamable HTTP | Tools, Resources, Prompts, Logging |
| kotlinlang-mcp-server | Server | Streamable HTTP | Tools |
| kotlin-mcp-server | Server | STDIO, SSE | Tools, Resources, Prompts |
| weather-stdio-server | Server | STDIO | Tools |
| kotlin-mcp-client | Client | STDIO | Tool discovery & invocation |
| notebooks | Client (Notebook) | Streamable HTTP | Tool discovery & invocation |
Getting Started
- Building a server? Start with simple-streamable-server — it uses the recommended Streamable HTTP transport and covers tools, resources, prompts, and logging.
- Building a client? Open the notebooks sample for a step-by-step walkthrough, or see kotlin-mcp-client for a full CLI client with Anthropic API integration.
Samples
Simple Streamable HTTP Server
A minimal Streamable HTTP server with optional Bearer token authentication. Demonstrates tools
(greet, multi-greet), a prompt template, a resource, and server-to-client logging notifications.
Read more →
Kotlinlang MCP Server
A Streamable HTTP server that exposes the official Kotlin documentation (kotlinlang.org) to LLM clients — full-text search via Algolia and page retrieval in markdown. Demonstrates wrapping a real external API in an MCP server with in-memory caching. Read more →
Kotlin MCP Server
A multi-transport server supporting STDIO, SSE (plain), and SSE (Ktor plugin). Useful for exploring different transport modes side by side. Read more →
Weather STDIO Server
A focused STDIO server that exposes weather forecast and alert tools backed by the weather.gov API. Includes Claude Desktop integration instructions. Read more →
Kotlin MCP Client
An interactive CLI client that connects to any MCP server over STDIO and routes queries through Anthropic's Claude API, bridging MCP tools with LLM conversations. Read more →
MCP Client Notebook
A Kotlin notebook that connects to a remote MCP server via Streamable HTTP and demonstrates ping, tool listing, and tool invocation — all in an interactive cell-by-cell format. Read more →