Anthropic Launches Claude Plugin Submission Portal with Developer Docs

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

Confirmed

• The submission portal lets developers on paid plans submit plugins, track review status, and view usage analytics after launch
• Two submission paths: a single MCP connector (pointing to a remote MCP server) or a plugin bundle (combining MCP server and skills in a GitHub repo); submission happens directly in Claude
• Post-launch analytics include installs broken down by product and version
• Plugins are the unified integration format: added once, usable across claude.ai, desktop/mobile, Cowork and Claude Code
• The official docs cover skills, MCP Apps and directory listing, detailing what a full plugin can contain
• Anthropic's developer account says a unified plugin discovery experience across Claude and Claude Code will roll out in the coming weeks

Why it matters

• The directory and portal mark the standardization of Claude's third-party ecosystem, giving developers a clear publishing path and measurement tools
• 110x annual MCP usage growth signals strong demand; unified discovery should further lower barriers for user installation and developer distribution

2026-09-26 ~ 2026-09-26 · 7 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
• Anthropic to roll out unified plugin discovery across Claude and Claude Code — ClaudeDevs · 2026-09-26
• [source] Anthropic publishes Claude plugin docs: skills, MCP Apps, and directory listing guide — ClaudeDevs · 2026-09-26

3 near-duplicate retellings: ClaudeDevs · bcherny · dsp_