Power your agent
The publisher's own URL. Not a PlugMCP endpoint.
Host a copy with our keys and logs.
https://businessdays.openkrill.app/mcpThe Claude button above opens Claude with the name and URL filled in. You still confirm it there.
claude mcp add --transport http app.openkrill-business-days https://businessdays.openkrill.app/mcpRun in a terminal.
{ "mcpServers": { "app.openkrill-business-days": { "command": "npx", "args": [ "-y", "mcp-remote", "https://businessdays.openkrill.app/mcp" ] } }}claude_desktop_config.json
Remote URL or a command on your machine? How the two installs differ
Run on PlugMCP
A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.
LaunchFrom the publisher
Plugins for Claude Code and Cursor that connect an agent to the Agent Tools MCP servers by OpenKrill. Each plugin is one tool family: a skill per server that says when to use it, plus the remote MCP config for those servers. 9 plugins bundle 54 public MCP servers. None needs an API key, a sign-up or a local process.
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claude plugin marketplace add nguyenhieuec/agent-tools-plugins
claude plugin install dev-security@openkrill
Start a new session and ask: "Is lodash 4.17.15 vulnerable, and which version fixes it?"
Install any other family the same way.
Inside a session, /plugin marketplace add nguyenhieuec/agent-tools-plugins and /plugin do the same.
Cursor reads the same plugins through .cursor-plugin/marketplace.json.
A team admin can import this repository under Dashboard, Plugins & MCPs, Team Marketplaces, Import from Repo, and members install from Customize.
To try one family alone, clone this repository and copy plugins/<family> to ~/.cursor/plugins/local/<family>, then run Developer: Reload Window.
The Cursor CLI loads a family directly: cursor-agent --plugin-dir plugins/<family>.
Each family also has a plain mcp.json you can merge into ~/.cursor/mcp.json without the skills.
Add the API server alone and ask it: its index_tools tool searches every Agent Tools server by task in plain words and answers with the tool name and the MCP address to add.
claude mcp add --transport http openkrill https://api.openkrill.app/mcp
The plugin servers do not list index_tools: each one describes only its own tools.
The gateway at https://api.openkrill.app/gateway/mcp lists the tools of every server, named <server>__<tool> (for example packages__check_package), and runs each call on the owning server with its usual per-network limits.
The full list has every tool of every server, about 200 KB, so a client that loads every tool into the model should pick a family with ?servers=:
claude mcp add --transport http openkrill-dev-security "https://api.openkrill.app/gateway/mcp?servers=dev-security"
?servers= takes a family name or server names, comma-separated.
The same tools work in Zapier without code: join the OpenKrill Tools integration with this invite link. It is early and private until Zapier reviews it; every action is one gateway call and needs no key.
.claude-plugin/marketplace.json Claude Code marketplace
.cursor-plugin/marketplace.json Cursor marketplace
plugins/<family>/
.claude-plugin/plugin.json Claude Code plugin manifest
.cursor-plugin/plugin.json Cursor plugin manifest
.mcp.json MCP servers for Claude Code
mcp.json MCP servers for Cursor
skills/<server>/SKILL.md One skill per MCP server
There are no accounts. Most servers keep only daily call counts and a short cache of public data. Some keep what their tools say they keep: Store Price Tracker keeps public store snapshots, Taste Profile and Outreach Desk keep a profile under a key only you hold, and Transcript Kit keeps a transcript for 24 hours. What each server receives, keeps and for how long: https://tools.openkrill.app/privacy#per-server. Terms: https://tools.openkrill.app/terms. Questions and bugs: https://tools.openkrill.app/support or [email protected].
This repository is generated from the Agent Tools plugin listings. Edits made here are overwritten on the next release.
MIT
© 2026 MCP Directory.
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{ "mcpServers": { "app.openkrill-business-days": { "url": "https://businessdays.openkrill.app/mcp", "headers": {} } }}Tools
No tool list yet. Remote servers get one after the first health check.
FAQ
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
No required environment variable is listed on this record.
Business Days & Workday Calc is reached over HTTP.
Last checked 2026-11-07. Count workdays, office days and PTO days, or list bank holidays and school breaks.