atlan — Claude Code plugin for your data catalog
Hooks the agent up to the Atlan catalog: asset discovery, lineage tracing, glossary edits and data quality rules, authorised over OAuth.
/plugin install atlan@claude-plugins-official
/plugin marketplace add anthropics/claude-plugins-community
/plugin install atlan@claude-community
/plugin marketplace add anthropics/claude-plugins-officialWhat atlan does
Everything runs through the Atlan MCP endpoint at mcp.atlan.com/mcp, so you ask in plain language and the agent picks the tool. Need a table, its upstream sources, or a glossary term fixed? That is the workflow.
Fifteen MCP tools ship with the plugin. Twelve are on from the start; the other three sit behind feature flags. Beyond search and lineage you get certification handling, validation rules you can schedule, and a way to sort assets into domains and data products. A skill named atlan-search tells the agent which tool fits a given filter — asset type, tag, owner, domain, quality — and loads only when the task needs it.
OAuth covers the connection, so no API key goes into your config. Local testing uses claude --plugin-dir ./claude-plugin. Keep in mind the repository's own MCP server is marked deprecated: it receives fixes only, and the hosted endpoint is the supported path.
What it helps with
- locate a data asset by describing it rather than guessing its name
- follow a dataset's lineage upstream and downstream
- attach glossary terms to the right assets
- set up a scheduled check on data quality
- group assets into domains and data products
Example prompts for the agent
- List every asset tagged
financein Atlan with its owners - Trace lineage for the
orderstable two levels upstream - Add a quality rule so
customers.emailcannot be empty
How to install atlan
Plugin marketplace
/plugin install atlan@claude-plugins-official/plugin marketplace add anthropics/claude-plugins-community/plugin install atlan@claude-community/plugin marketplace add anthropics/claude-plugins-officialStep by step, with commands for each platform: Claude Code plugins: marketplaces, installing, and building your own
Questions about atlan
How do I install atlan in Claude Code?
Add the marketplace with /plugin marketplace add anthropics/claude-plugins-official, then run /plugin install atlan@claude-plugins-official.
What does the atlan plugin do?
It connects Claude to the Atlan data catalog: search assets, walk lineage, manage glossaries and data quality rules. The link goes through the Atlan MCP server over OAuth.
Do I need an API key?
No. Authentication happens through OAuth against mcp.atlan.com/mcp. The MCP server bundled in the repository is deprecated and kept in maintenance mode only.
Source text
SKILL.md · MIT
# Atlan Agent Toolkit > [!WARNING] > **The local Atlan MCP server in this repository is deprecated.** Use the hosted Atlan MCP at **[mcp.atlan.com/mcp](https://mcp.atlan.com/mcp)** instead. > > The local install path (cloning this repo or `pip install atlan-mcp-server`) is in maintenance-only mode — no new features, support not guaranteed. The hosted endpoint is the recommended way to integrate Atlan with Claude Desktop, Cursor, Codex, Databricks UC, and other MCP clients. > > See the [Atlan MCP overview](https://docs.atlan.com/product/capabilities/atlan-ai/how-tos/remote-mcp-overview) for migration instructions. [](code_of_conduct.md) [](https://pypi.org/project/atlan-mcp-server) [](https://github.com/atlanhq/agent-toolkit/blob/main/LICENSE) This repository contains a collection of tools and protocols for interacting with Atlan services for AI agents. Each component is designed to provide specific functionality and can be used independently or together. ## Components ### Model Context Protocol (MCP) An MCP server that enables interaction with Atlan services through tool calling. Provides tools for asset search, and retrieval using [pyatlan](https://developer.atlan.com/sdks/python/). You can find the documentation and setup instructions for the MCP server [here](modelcontextprotocol/README.md). ### Claude Code Plugin The official Atlan plugin for Claude Code. Search, explore, govern, and manage your data assets through natural language, powered by the Atlan MCP server. Connects to Atlan via OAuth at `mcp.atlan.com/mcp` - no API keys required. **Features:** - 15 MCP tools (12 enabled by default, 3 via feature flags) - **Search**: AI-powered semantic search across data assets - **Lineage**: Trace data flow upstream and downstream - **Governance**: Manage glossaries, terms, certifications - **Data Quality**: Create and schedule validation rules - **Data Mesh**: Organize domains and data products **Setup:** ```bash # Install from marketplace (when available) /plugin marketplace add atlanhq/agent-toolkit /plugin install atlan@atlan-marketplace # Or test locally claude --plugin-dir ./claude-plugin ``` For detailed plugin documentation, see [claude-plugin/README.md](claude-plugin/README.md). ### Skills `skills/` holds the agent skills both plugins ship. A skill is instructions, not code: it teaches the agent how to use the tool surface well, and loads only when the task calls for it. | Skill | What it covers | |---|---| | [`atlan-search`](skills/atlan-search/SKILL.md) | Which discovery tool to reach for, and the filter rules that make each one return the right answer — types, tags, custom metadata, owners, glossary, domains and products, data quality, lineage, BI and pipelines, counts and breakdowns | Both plugins read the same directory (`cursor-plugin/skills` is a symlink), so a skill is authored once and shipped to Claude Code and Cursor together. Skills are measured, not assumed: the golden-eval harness runs the same dataset with and without them and diffs the scorecard per case. Adding or editing a skill means running that A/B and quoting the delta. ## 🔍 DeepWiki: Ask Questions About This Project [](https://deepwiki.com/atlanhq/agent-toolkit) ## Contributing See [CONTRIBUTING.md](CONTRIBUTING.md) for details on how to contribute to the Atlan Agent Toolkit. ## License The project is licensed under the [MIT License](LICENSE). Please see the [LICENSE](LICENSE) file for details.
© atlanhq · MIT · atlanhq/agent-toolkit
