Bluesky MCP Server is a Model Context Protocol (MCP) server for Bluesky that enables automated interactions with the AT Protocol. It exposes a set of MCP tools to post content, manage posts, and interact with timelines and profiles on Bluesky. The server supports creating text posts with optional images (base64-encoded data) and retrieving or deleting posts by URI. It also offers engagement actions such as liking, unliking, reposting, and unreposting, controlled by URIs and CIDs where applicable. For timeline and profile operations, you can fetch your profile and the timeline with an optional limit (up to 100). A built-in prompt formats timeline data for human-friendly display, including author, content, engagement metrics, timestamps, and embedded content. Authentication is supported via Bluesky login using either environment variables (BLUESKY_IDENTIFIER and BLUESKY_PASSWORD) or explicit login calls. The README describes installation options: automatic Smithery-based installation and a manual Claude Desktop configuration that loads credentials from environment variables. The server is MCP-compatible for Claude usage, enabling integration with Claude Desktop workflows and other MCP clients. This makes it suitable for developers and AI assistants looking to automate Bluesky interactions under AT Protocol control.