Atlan MCP tools
The Atlan MCP server exposes 28 tools across eight categories: search and discovery, lineage and exploration, asset metadata, custom metadata, asset lifecycle, business glossary, data domains, and data quality. Each tool has a defined access level—Read (query only), Write (modifies metadata), or Admin (requires admin permissions). Filter by category or access level to find the tool you need.
The same search agent that powers Conversational AI — search across the entire Atlan catalog using natural language with the same accuracy and intent-aware ranking in both places.
Find assets using structured filters — type, certification status, tags, and dates. Returns up to 10 results by default; specify a limit for up to 100 per call.
Count assets matching specific filters without fetching the full result set.
Retrieve complete details for a specific asset by GUID, including metadata, owners, tags, and custom attributes.
Resolve users, tags, glossary terms, custom metadata schemas, and domains by name using vector search across five namespaces.
List all groups in Atlan and their members so AI agents can resolve group names to actual identities.
Trace upstream or downstream lineage for an asset to understand dependencies, data flows, and impact across your environment.
Run SQL queries directly on connected data sources such as Snowflake to retrieve sample data for analysis and validation.
Modify asset metadata such as descriptions, certification status, and README content.
Set or update custom metadata attribute values on any asset.
Apply one or more classification tags to assets, with optional propagation to downstream lineage.
Remove a specific classification tag from an asset.
Add or remove informational, warning, or issue announcements on assets.
Define a new custom metadata set with typed attributes. Requires admin permissions in Atlan.
Add new typed attributes to an existing custom metadata set. Requires admin permissions in Atlan.
Remove specific attributes from a custom metadata set. Requires admin permissions in Atlan.
Clear all custom metadata values from an asset for a specific metadata set.
Permanently delete an entire custom metadata set and all its attribute definitions. Requires admin permissions in Atlan.
Archive, restore, or purge assets to manage the end-of-life state of deprecated or replaced data assets.
Define new business glossaries with metadata and descriptions so teams can organize terms by domain or function.
Add categories and subcategories inside glossaries so business terms are grouped into navigable hierarchies.
Create individual business terms with names, definitions, and certificate status.
Define data domains and subdomains to organize assets and data products by business area and ownership.
Create data products linked to assets within a domain so teams can publish and discover business-ready datasets.
Define column, table, and SQL-based rules on critical assets to enforce baseline data quality checks.
Adjust thresholds, priorities, and conditions on existing rules so quality checks stay aligned with evolving data patterns.
Configure cron-based schedules for rules on tables and views so checks run automatically alongside ETL workflows.
Remove deprecated or noisy rules so your data quality rule set remains focused and maintainable.