Agent Tools API

Agent Tools plugins

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.

Install in Claude Code

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.

Plugin	What it covers	Install
dev-security	Package health, CVE triage, software end-of-life and licence facts, DESIGN.md lint and diff, and AI coding agent news.	claude plugin install dev-security@openkrill
web-email	Audit a site's SEO and AI crawler access, read a web page as clean Markdown, check a domain's mail delivery, see if a name's domain is free, and report email engagement.	claude plugin install web-email@openkrill
commerce	Store price tracking, catalog and feed checks, HS codes, duty and landed cost, US product-safety certificates, and competitor ad angles.	claude plugin install commerce@openkrill
office	Business days and holidays, US tax figures, EU VAT and company registries, document files, ready-to-send links, weekly lane plans and an AI-native team scorecard.	claude plugin install office@openkrill
sales-hiring	Buyer signals, an inbound pitch scoreboard, open jobs at named companies, remote jobs by country, and a hire-or-automate split.	claude plugin install sales-hiring@openkrill
research	Find papers, check references and DOIs, read US federal regulations, compare country statistics, and make a school digest.	claude plugin install research@openkrill
markets	Technical indicators over a price series, candlestick charts for a ticker, liquidity pool fee and volume checks, and token red-flag screens.	claude plugin install markets@openkrill
consumer	US recalls, car reports by VIN, food facts by barcode, and travel advice with live airport status.	claude plugin install consumer@openkrill
content-media	Trending topics and post ideas, post and video script drafts, AI-writing checks, transcripts, free video, Live Photos, design taste, public views and likes of posts, plus YouTube transcripts, app reviews and X posts.	claude plugin install content-media@openkrill

Install in Cursor

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.

Not sure which plugin?

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.

Every tool on one server

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.

Layout

.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

Privacy and support

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.

License

MIT