Unpaywall MCP — open-access lookup for scholarly papers (free, no key)
Streamable HTTP
https://gateway.pipeworx.io/unpaywall/mcpclaude mcp add --transport http unpaywall https://gateway.pipeworx.io/unpaywall/mcp@pipeworx/mcp-unpaywall · npm 0.2.1 · stdio
claude mcp add --transport stdio unpaywall -- npx -y @pipeworx/mcp-unpaywall@0.2.1The Power BI Authoring MCP server lets an AI agent create and change Power BI semantic models.
MCP Server for Snowflake from Snowflake Labs
Direct access to your Sanity projects (content, datasets, releases, schemas) and agent rules
Official PostHog MCP Server for product analytics, feature flags, experiments, and more.
Real-time global intelligence on conflict, markets, energy, trade, shipping and cyber. 102 tools.
Official changedetection.io MCP: web page change tracking, back-in-stock and price alerts.
