U.S. federal holidays with observed dates and business-day math. Example from an open-source kit.
Holiday Calendar is an MCP integration. U.S. federal holidays with observed dates and business-day math. Example from an open-source kit.
The registry lists a streamable-http connection at https://starter.modernmustardseed.com/holidays.
Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.
View the publisher’s registry entry · Project repository · Project website. This profile uses version 1.0.1 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.
Browse related productivity & project management MCP servers for tools that cover the same kind of work.
Store entities, relations and observations in a local knowledge graph with the reference Memory MCP server.
Connect the Notion MCP server to search workspace content and work with pages and databases through Notion’s hosted OAuth service.
Search Linear issues and projects, inspect work context and manage updates through Linear’s hosted MCP server with OAuth.
Your assistant inside the workspace — read channels, search history, post messages and tame the noise.
Metabase ships its own MCP endpoint — search your BI content, build and run queries, and save questions and dashboards without leaving the chat.
Stop letting your assistant hallucinate n8n node parameters — this server hands it the real schemas, templates and validation.