php-sdk/examples/server
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Christopher Hertel d150772e24
[Schema][Server] Add MCP Apps extension (io.modelcontextprotocol/ui) support (#281)
* feat: add MCP Apps extension (io.modelcontextprotocol/ui) support

Adds support for the MCP Apps protocol extension, which lets servers
expose interactive HTML UIs as resources rendered by spec-conforming
clients (e.g. Goose) in sandboxed iframes.

- Generic extension plumbing: ServerExtensionInterface and
  Builder::enableExtension(), with extensions advertised under
  capabilities.extensions during the initialize handshake.
  ClientCapabilities/ServerCapabilities gain an extensions field.
- Schema DTOs under Mcp\Schema\Extension\Apps: the McpApps marker,
  UiToolMeta, ToolVisibility enum, UiResourceContentMeta,
  UiResourceCsp, and UiResourcePermissions (with empty-object
  presence markers per spec).
- A worked weather example under examples/server/mcp-apps/ with a
  minimal spec-conforming view (ui/initialize handshake, postMessage
  JSONRPCMessage objects, and ResizeObserver-driven size reporting).
- docs/extensions.md guide with pointers from index.md and
  examples.md to the ext-apps repository for the TypeScript SDK and
  richer view-side patterns.
- Unit and inspector snapshot test coverage.

Spec: https://github.com/modelcontextprotocol/ext-apps

* Type UiToolMeta visibility as ToolVisibility enum

Also fix UiResourceContentMeta::jsonSerialize() return phpdoc.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* Address review nitpicks for MCP Apps extension

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* Apply PR review feedback for MCP Apps extension

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* Add regression tests and CHANGELOG entry for capabilities extensions

- Pin the is_array() guards on extensions in ServerCapabilities and
  ClientCapabilities::fromArray() with explicit non-array payload tests.
- Pin the isset()-rejects-null contract in UiResourcePermissions::fromArray().
- Surface the new extensions field on both capability classes in CHANGELOG.
- Inline the ?: idiom in Builder::build() to match the surrounding style.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-06-01 09:35:54 +01:00
..
cached-discovery CS update after release of v3.95 (#282) 2026-04-26 12:39:27 +02:00
client-communication [Schema][Server] Add top-level title to Tool (#288) 2026-04-26 15:37:40 +02:00
client-logging Move examples to server directory (#198) 2025-12-27 15:39:05 +01:00
combined-registration Move examples to server directory (#198) 2025-12-27 15:39:05 +01:00
complex-tool-schema Use SchemaValidator to validate tool input (#203) 2026-01-11 21:46:53 +01:00
custom-dependencies Update codestyle based on updated Symfony rules (#229) 2026-02-01 11:54:31 +01:00
custom-method-handlers [Schema][Server] Add top-level title to Tool (#288) 2026-04-26 15:37:40 +02:00
discovery-calculator Move examples to server directory (#198) 2025-12-27 15:39:05 +01:00
discovery-userprofile Update codestyle based on updated Symfony rules (#229) 2026-02-01 11:54:31 +01:00
elicitation [Schema][Server] Add top-level title to Tool (#288) 2026-04-26 15:37:40 +02:00
env-variables Update codestyle based on updated Symfony rules (#229) 2026-02-01 11:54:31 +01:00
explicit-registration Move examples to server directory (#198) 2025-12-27 15:39:05 +01:00
mcp-apps [Schema][Server] Add MCP Apps extension (io.modelcontextprotocol/ui) support (#281) 2026-06-01 09:35:54 +01:00
oauth-keycloak [Server] Compose StreamableHttpTransport security middleware via defaultMiddleware() factory (#307) 2026-05-25 13:49:43 +02:00
oauth-microsoft [Server] Compose StreamableHttpTransport security middleware via defaultMiddleware() factory (#307) 2026-05-25 13:49:43 +02:00
schema-showcase Update codestyle based on updated Symfony rules (#229) 2026-02-01 11:54:31 +01:00
bootstrap.php [Client] Feat: Implement MCP client component (#192) 2026-03-10 17:22:40 +01:00
README.md [Client] Feat: Implement MCP client component (#192) 2026-03-10 17:22:40 +01:00

MCP SDK Examples

This directory contains various examples of how to use the PHP MCP SDK.

You can run the examples with the dependencies already installed in the root directory of the SDK. The bootstrapping of the example will choose the used transport based on the SAPI you use.

For running an example, you execute the server.php like this:

# For using the STDIO transport:
php examples/server/discovery-calculator/server.php

# For using the Streamable HTTP transport:
php -S localhost:8000 examples/server/discovery-userprofile/server.php

You will see debug outputs to help you understand what is happening.

Run with Inspector:

npx @modelcontextprotocol/inspector php examples/server/discovery-calculator/server.php

Debugging

You can enable debug output by setting the DEBUG environment variable to 1, and additionally log to a file by setting the FILE_LOG environment variable to 1 as well. A dev.log file gets written within the example's directory.

With the Inspector you can set the environment variables like this:

npx @modelcontextprotocol/inspector -e DEBUG=1 -e FILE_LOG=1 php examples/server/discovery-calculator/server.php