MCP Server App Appplayer MCP Server

MCP Server A Dart plugin for implementing Model Context Protocol (MCP) servers. This plugin allows Flutter applications to

What the server does

• Multi-revision MCP support — with per-version capability gating — see Protocol Versions below
• Core primitives — — Resources, Tools, Prompts, plus Completions (2025-06-18+)
• Server-initiated requests — — requestClientSampling, requestClientRoots, requestClientElicitation with response routing and timeout
• OAuth 2.1 Resource Server — (RFC 9728) — configureProtectedResource exposes .well-known/oauth-protected-resource; HTTP layer validates Bearer tokens
• Structured tool output — (2025-06-18) — outputSchema + structuredContent + resource_link content type
• Icons + sampling tool calls — (2025-11-25) — Tool.icons / Resource.icons / Prompt.icons, plus the new tools / toolChoice fields on sampling/createMessage

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

• Server — The Server class is your core interface to the MCP protocol. It handles connection management, protocol compliance, and message routing:
• Resources — Resources are how you expose data to LLMs. They're similar to GET endpoints in a REST API - they provide data but shouldn't perform significant
• Tools — Tools let LLMs take actions through your server. Unlike resources, tools are expected to perform computation and have side effects:
• Prompts — Prompts are reusable templates that help LLMs interact with your server effectively:

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.