"FIRST" matching MCP connectors:

Official MCP server for UploadKit, the file-uploads platform for developers. Gives Claude Code, Cursor, Windsurf, and Zed first-class knowledge of UploadKit's 40+ open-source React components, Next.js route handler scaffolding, <UploadKitProvider> wiring, BYOS (S3/R2/GCS/B2) configuration, and full-text search across 88+ docs pages. Runs locally via npx — no API key, no telemetry, no config.

The first commercial implementation of HTTP 402 Payment Required for creator content monetization. AI agents pay $0.0025 per content pull from paywalled creator libraries. Patent-pending micropayment infrastructure — creators get paid automatically.

Markdown-first MCP server for Notion API with 8 composite tools and 39 actions.

Open-source all-in-one MCP-first customer platform: KB, Conversations, CRM, CMS, Outreach, Analytics

Security-first WordPress MCP server. 129 tools for Claude, ChatGPT, Gemini. Free on wp.org.