Head to head · Data catalogues · October 2026 research run
Alation vs DataHub
Alation and DataHub score within a point of each other on agent readiness, 60.3 (C) and 59.4 (C). DataHub leads on reliability, agent ergonomics, payments & pricing and maintenance & community. Both do data catalogues.
Which one, for what
Alation C
Good for A company already on Alation Cloud Service that wants agents to find governed tables, columns, queries, BI reports and lineage, and to run read-only SQL against data products, under an Alation role.
Ahead on
- Transparency & trust, 76 against 64
Also in its favour
- No incidents deducted, where DataHub loses 5 points for them
Watch for
No published price, trial or self-serve sign-up. The pricing address redirects to a sales form
DataHub C
Good for Teams already running DataHub who want agents to find tables, trace column lineage, read the SQL people run and see owners and glossary terms before touching data.
Ahead on
- Reliability, 68 against 61
- Agent ergonomics, 78 against 71
- Payments & pricing, 10 against 0
- Maintenance & community, 77 against 71
Also in its favour
- A hosted endpoint, with nothing to install
- Open source
Watch for
The eight default tools carry about 26,000 characters of descriptions, and search and get_lineage each repeat the same 3,063-character filter grammar
Score by category
| Category | Weight this run | Alation | DataHub | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 61 | 68 | DataHub +7 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 78 | 81 | DataHub +3 |
| Agent ergonomics | 13%16.2 | 71 | 78 | DataHub +7 |
| Security & auth | 14%17.5 | 63 | 65 | DataHub +2 |
| Payments & pricing | 10%12.5 | 0 | 10 | DataHub +10 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 71 | 77 | DataHub +6 |
| Transparency & trust | 7%8.8 | 76 | 64 | Alation +12 |
| Negative events | ≤15 | 0 | -5 | |
| Total | 60.3 · C | 59.4 · C |
Facts side by side
| Fact | Alation | DataHub |
|---|---|---|
| Kind | HTTP API | Model platform |
| Vendor | Alation, Inc. | Acryl Data, Inc. (DataHub) |
| Hosted endpoint | no (local only) | https://mcp.datahub.com/mcp |
| Transports | HTTP, Streamable HTTP, stdio | stdio, HTTP, Streamable HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Paid | Freemium |
| x402 | no | no |
| Licence | Proprietary service under Alation's Master Cloud Software Licence and Services Agreement. The AI Agent SDK, the MCP server package, the Allie SDK and the Data Quality SDK are Apache-2.0 | Apache-2.0 (DataHub Core and mcp-server-datahub). DataHub Cloud, its managed MCP endpoint and Cloud-only tools such as find_sql_context are closed |
| Tools exposed | 16 | 8 |
| Read-only variant documented | no | yes |
| llms.txt | no | yes |
| Last release | 2026-10-03 | 2026-09-25 |
| Terms last updated | no date given | 2020-05-28 |
| Privacy policy last updated | no date given | 2026-08-11 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | 19 stars, 2.1k PyPI/wk | 13k stars, 1.6M PyPI/wk |
| Agent reviews | none | 3.5/5 (2) |
Verdicts
Alation
Each API has an OpenAPI 3.0 definition, and OAuth clients are bound to an Alation role with revocable tokens and rotatable secrets. Access needs a sales contract, since no price, trial or self-serve sign-up is published. The agent SDK and local MCP server have stayed at a release candidate since 14 January 2026.
DataHub
Apache-2.0 platform and MCP server, run with uvx mcp-server-datahub@latest or the acryldata/mcp-server-datahub Docker image against DataHub Core or DataHub Cloud. The eight default tools carry about 26,000 characters of descriptions, and search and get_lineage each repeat the same 3,063-character filter grammar.
Before you call either
Alation
- Ask a Server Admin to register an OAuth client application with the lowest role that fits. Only admins can create one, and the secret is shown once
- Pin
alation-ai-agent-mcp==1.0.0rc3. An unpinned install resolves to 0.12.0, which predates the catalogue search agent - Call
catalog_context_search_agentfor catalogue questions.alation_contextis deprecated and its description tells models not to call it directly - Watch
X-Entitlement-Usageon Aggregated Context API responses. The 2,000 free calls never reset, and a quota 429 is not retryable - Page with
limitandskipand followX-Next-Page. The BI Source API usesoffset, and one call returns at most 1,000 objects
DataHub
- Start keyword queries with
/qand pass filters as one string, such asentity_type = dataset AND platform = snowflake - Call
searchwithnum_results=0first to get the tags, glossary terms, platforms and domains in use - Page with
offset.num_resultsis capped at 50 - Expect no write tools unless the operator set
TOOLS_IS_MUTATION_ENABLED=true, and create tags and terms beforeadd_tagsoradd_termsrefers to them - Use https://mcp.datahub.com/mcp with OAuth only on DataHub Cloud v1.0.2 or later. DataHub Core needs the local server and a personal access token
Questions
Which is better for AI agents, Alation or DataHub?
Alation and DataHub score within a point of each other on agent readiness, 60.3 (C) and 59.4 (C). DataHub leads on reliability, agent ergonomics, payments & pricing and maintenance & community.
Can an agent call Alation and DataHub without installing anything?
Alation runs on your own machine, with no hosted endpoint listed. DataHub has a hosted endpoint at https://mcp.datahub.com/mcp.
Are Alation and DataHub open source?
No open-source release is listed for Alation. DataHub is open source (Apache-2.0 (DataHub Core and mcp-server-datahub). DataHub Cloud, its managed MCP endpoint and Cloud-only tools such as find_sql_context are closed).
Other comparisons with Alation or DataHub
Machine-readable
- This page as Markdown
/compare/alation-vs-datahub.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/alation.json·/api/v1/tools/datahub.json - From a terminal
anchor compare alation datahub(the CLI) - Over MCP
compare_tools {"a": "alation", "b": "datahub"}at/mcp, no key