Anthropic Launches Claude Plugin Directory Submission Portal

On September 26, Anthropic officially announced a plugin directory submission portal for Claude, along with official plugin development documentation. Plugins are the primary way for third-party developers to extend Claude, bundling MCP connectors and Agent Skills; Anthropic also disclosed that MCP usage has grown 110x this year.

Confirmed

• The submission portal lets developers submit plugins and track review status, with usage analytics available after launch
• Two submission paths: a single MCP connector (pointing to a remote MCP server), or a plugin package (combining MCP servers and skills in a GitHub repository); submission happens directly within Claude
• Post-launch usage analytics show data such as installs broken down by product and version
• Plugins are the unified form of Claude integration: once added by a user, they work across claude.ai, desktop/mobile, Cowork, and Claude Code
• Anthropic's developer account said a unified plugin discovery experience across Claude and Claude Code will roll out in the coming weeks

Why it matters

• The plugin directory and submission portal mark the standardization of Claude's third-party ecosystem, clarifying the publishing path and measurement tools for developers
• The 110x growth in MCP usage this year signals strong ecosystem demand, and the unified discovery experience should further lower barriers for user installation and developer distribution

2026-09-26 ~ 2026-09-26 · 5 related posts

• [source] Anthropic launches Claude plugin directory portal as MCP usage jumps 110x this year — ClaudeDevs · 2026-09-26
• Claude plugin portal: submit via single MCP connector or GitHub-hosted bundle — ClaudeDevs · 2026-09-26
• [source] Anthropic to roll out unified plugin discovery across Claude and Claude Code — ClaudeDevs · 2026-09-26
• Anthropic publishes Claude plugin docs: skills, MCP Apps, and directory listing guide — ClaudeDevs · 2026-09-26

1 near-duplicate retellings: ClaudeDevs