5 Best Atlan Alternatives in 2027
Data catalogs and one lighter option compared for teams whose real goal is AI that understands their database, with lineage, MCP support and verified pricing.
- Pro plan, €29 per user per month, with Guard
- Rated 5.0 on G2 (2 reviews)
Updated 14 November 2026. Prices checked 14 November 2026 against each vendor’s own pricing page.
last_order_at > now() - interval '90 days'- DataHubFree OSS / contact sales
A free, open source catalog with lineage
- OpenMetadataFree OSS / free tier
Open source with MCP built in, or a free managed tier
- See SaturnSQL ContextSaturnSQL Context€29/user/mo
AI that understands your database, without a catalog rollout
- AlationContact sales
The closest like-for-like swap for Atlan
- Coalesce Catalog$150/user/mo
A catalog bundled with a transformation platform
Why teams look past Atlan
Atlan is a capable catalog, and it now sells itself as the context layer for enterprise AI. The catch: there is no published price, and each source needs a crawler, sometimes a self-deployed runtime, before an agent sees anything.
That is the right trade for a governance program across dozens of systems. It is a lot of rollout if the goal is narrower: Claude or Cursor should stop picking the wrong table in your production database. Decide which of those you are buying before comparing catalogs.
If you want AI to understand your database, not a catalog rollout
SaturnSQL Context sends the comments already in your database, plus your team’s notes, definitions and synonyms, to Claude, ChatGPT and Cursor over MCP. Nothing to crawl or deploy, and Guard keeps hidden tables and columns out of each person’s context. It has no lineage and is not a catalog.
Feature comparison
| SaturnSQL Context | Atlan | DataHub | OpenMetadata | Alation | Coalesce Catalog | |
|---|---|---|---|---|---|---|
| Useful with nothing to deploy or crawl* | ✓ | — | — | — | — | — |
| Lineage | — | ✓ | ✓ | ✓ | ✓ | ✓ |
| MCP server* | ✓ Paid | ✓ | ✓ | ✓ | ~ | ✓ |
| AI tools can write descriptions* | ✓ Paid | ✓ | ~ | ? | ? | ✓ |
| Open source | — | — | ✓ | ✓ | — | — |
| Starting paid price | €29/user/mo | Contact sales | Free OSS / sales | Free OSS / free tier | Contact sales | $150/user/mo |
✓ available · ✓ Paid = not on the free tier · Sales = Enterprise plan, through sales · ~ partial · ? not documented by the vendor · — not available
- Useful with nothing to deploy or crawl: Catalogs ingest metadata through a connector or crawler per source. DataHub Cloud and Collate host the platform, but you still set up ingestion. SaturnSQL reads the comments in the databases you have connected.
- MCP server: SaturnSQL’s MCP server comes with Starter and up. DataHub’s managed MCP server is DataHub Cloud only; Core runs the open source one. Alation hosts its MCP server for Alation Cloud customers.
- AI tools can write descriptions: DataHub’s MCP write tools are optional. Coalesce lets AI tools edit the glossary.
Prices checked 14 November 2026 against each vendor’s own pricing page: SaturnSQL Context · Atlan · DataHub · OpenMetadata · Alation · Coalesce Catalog.
The 5 best Atlan alternatives
DataHub
Best for: A free, open source catalog with lineageDataHub is the best free Atlan alternative: Apache-2.0, billed as the context platform for AI agents, with cross-platform column-level lineage and an open source MCP server, though self-hosting means running Kafka, a database and Elasticsearch, and DataHub Cloud, with the managed MCP server, is priced through sales.
Strong
- + Apache-2.0 open source, with a large community
- + Column-level lineage across platforms, with impact analysis
- + Open source MCP server with search, lineage and SQL context tools
Limits
- − Self-hosting needs Kafka, a database, Elasticsearch and Kubernetes
- − The managed MCP server is DataHub Cloud only
- − DataHub Cloud is priced through sales
Pricing: DataHub Core is free and open source. DataHub Cloud is scoped to your use cases and priced through sales. pricing page, checked 14 November 2026.
OpenMetadata
Best for: Open source with MCP built in, or a free managed tierOpenMetadata is an Apache-2.0 catalog with column-level lineage and an MCP server that ships installed and enabled, and Collate runs it for you with a free tier for 5 users and 500 assets, while its paid tiers start with a demo.
Strong
- + Apache-2.0, with the MCP server built in and on by default
- + Column-level lineage you can explore and edit
- + Collate’s free managed tier: 5 users, 500 assets
Limits
- − Self-hosting needs a database, Elasticsearch and an orchestrator or Kubernetes jobs
- − Collate Premium and Enterprise have no published price
Pricing: OpenMetadata is free and open source. Collate has a free tier for 5 users and 500 assets; Premium (25 users) and Enterprise (50 users, BYOC) are by demo, with no published price. pricing page, checked 14 November 2026.
SaturnSQL Context
Best for: AI that understands your database, without a catalog rolloutSaturnSQL Context is not a catalog and has no lineage or crawlers, but for the one job of making AI tools understand a database it needs none: it sends your table and column comments plus your team’s notes, definitions and synonyms to Claude, ChatGPT and Cursor over MCP, at a published €29 per user per month with Guard.
Strong
- + Starts from the comments already in PostgreSQL, Redshift, MySQL, SQL Server, Oracle, BigQuery and ClickHouse
- + Notes, definitions and synonyms in plain language, saved in the app or by the AI tool
- + Guard’s access rules keep hidden tables and columns out of each person’s context
- + Imports Apache Ossie YAML, and exports it and dbt schema.yml
Limits
- − No lineage, no glossary across other tools, no crawling of BI or pipelines
- − No Snowflake or Databricks
- − Covers databases reached through SaturnSQL only
Pricing: Context comes with the Pro plan, €29 per user per month with Guard and everything in Starter. Pro is coming soon, with a waitlist. Database comments reach AI tools from Starter at €19. pricing page, checked 14 November 2026.
Alation
Best for: The closest like-for-like swap for AtlanAlation is the most like-for-like replacement for Atlan: an enterprise catalog with 120+ connectors, lineage and agentic governance under its AIOS brand, and a hosted MCP server for Alation Cloud customers, with pricing through sales.
Strong
- + 120+ prebuilt connectors and an SDK for your own
- + Lineage across flows and dependencies, with business definitions on each node
- + Hosted MCP server on Alation Cloud, and a self-hosted option
Limits
- − No published price
- − The hosted MCP server is for Alation Cloud customers only
Pricing: Not published. Alation’s pricing page books a call with sales. pricing page, checked 14 November 2026.
Coalesce Catalog
Best for: A catalog bundled with a transformation platformCoalesce Catalog, formerly CastorDoc, has lineage, a glossary that AI tools can edit and an MCP server with 16 tools, and comes with Coalesce’s Starter plan at $150 per user per month, billed annually, together with its transformation platform.
Strong
- + Pulls metadata from warehouses, BI and transformation tools, dbt docs included
- + MCP server with 16 tools for search, lineage, descriptions and glossary
Limits
- − Not sold on its own: it comes with Coalesce’s platform plans
- − The MCP server is off until an admin turns it on
Pricing: Developer is free but has no Catalog. Starter is $150 per user per month, billed annually, and includes the Catalog. Enterprise and Business Critical are custom. pricing page, checked 14 November 2026.
Secoda and Select Star
Two catalogs in this space have been bought, so check where they are heading before you sign:
- SecodaContact sales
Secoda, a catalog with a hosted MCP server, was acquired by Atlassian and says the product will not change in the short term while some infrastructure moves to Atlassian Cloud to strengthen Rovo; its Core, Premium and Enterprise plans are sales-only.
- Select StarContact sales
Select Star, a catalog whose MCP server gives AI tools metadata, lineage and semantic models, announced in November 2025 that it is joining Snowflake to strengthen Horizon Catalog, and its site now says it is part of Snowflake; it publishes no prices.
| Tool | What happened | Status |
|---|---|---|
| Secoda | Acquired by Atlassian; parts move to Atlassian Cloud to strengthen Rovo source | December 2025 |
| Select Star | Announced it is joining Snowflake, to bring its lineage and discovery into Horizon Catalog source | Announced November 2025 |
When a catalog is more than you need
A catalog wins when you need lineage from source to dashboard, owners and a glossary across many tools, and a governance program around them. None of that is in SaturnSQL, and if you need it, pick DataHub, OpenMetadata or Alation above.
If the problem is AI answers on your databases, the context an AI is missing is small and close to the data: what orders.total is measured in, that orders_v2 replaced orders, what an active customer is. SaturnSQL Context reads the table and column comments already in PostgreSQL, Redshift, MySQL, SQL Server, Oracle, BigQuery and ClickHouse, and lets the people who know the data add the rest, in the app or by asking the AI tool to save it. With Guard, the same access rules decide what each person’s AI tools see.
It exports to Apache Ossie and dbt YAML, so it can feed a catalog or a semantic layer later. For governed metrics instead of a catalog, see the best semantic layer tools.
How we judged
We ranked for teams whose goal is AI that understands their data: what you must deploy before it helps, lineage, MCP support, open source and a published price. SaturnSQL Context is third because it does one part of a catalog’s job and nothing else. Every price and feature was checked against the vendor’s own site, docs or repository on 14 November 2026 and is linked from its entry. Where a vendor does not document something, the table says unknown.
Frequently asked questions
What are the best Atlan alternatives?
For a free, open source catalog with lineage, DataHub or OpenMetadata. For the closest enterprise swap, Alation. If you build on Coalesce, its Catalog comes with the Starter plan. If what you want is for AI tools to understand your database rather than a catalog of every system, SaturnSQL Context, which reads your database comments and your team’s notes with nothing to crawl.
Is there a free or open source alternative to Atlan?
Yes. DataHub and OpenMetadata are both Apache-2.0 catalogs with lineage and MCP servers. Self-hosting either means running a database and Elasticsearch, and Kafka for DataHub. Collate, the managed OpenMetadata, has a free tier for 5 users and 500 assets.
How much does Atlan cost?
Atlan does not publish prices; its pricing page books a conversation with sales. Alation, DataHub Cloud, Secoda and Select Star are also priced through sales. Coalesce publishes $150 per user per month for Starter, which includes its Catalog, and SaturnSQL Context comes with the Pro plan at €29 per user per month.
What are the best Alation alternatives?
Atlan is the closest like-for-like enterprise catalog. DataHub and OpenMetadata are the open source options, with column-level lineage and MCP servers. If the goal is AI answers on your databases rather than a governance program, SaturnSQL Context does that from day one, without a catalog project.
What are the best DataHub alternatives?
OpenMetadata is the nearest open source alternative, with its MCP server built in and a free managed tier from Collate. For a managed enterprise catalog, Atlan or Alation. If self-hosting DataHub was only meant to give AI tools context on your databases, SaturnSQL Context is a lighter way to get there.
What happened to Secoda and Select Star?
Atlassian acquired Secoda, which says the product will not change in the short term while parts move to Atlassian Cloud to strengthen Rovo. Select Star announced in November 2025 that it is joining Snowflake, and its site now says it is part of Snowflake. Teams outside Atlassian or Snowflake looking for Secoda or Select Star alternatives can choose from the list above.
Do I need a data catalog to give AI context?
Not always. A catalog earns its place when you need lineage, ownership and a glossary across many tools. If the question is why Claude or Cursor picks the wrong table or sums cents as euros, the context it needs lives in the database: comments, notes on which tables to use, and business definitions. SaturnSQL Context sends exactly that over MCP.
AI that understands your database and only sees what it should.
