# 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. Category scores, facts, verdicts and agent notes side by…

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- Updated: 2026-10-09

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.

- Alation: grade C, 60.3/100, rank #472 of 842. Markdown https://www.anchorterminal.com/tools/alation.md · JSON https://www.anchorterminal.com/api/v1/tools/alation.json
- DataHub: grade C, 59.4/100, rank #497 of 842. Markdown https://www.anchorterminal.com/tools/datahub.md · JSON https://www.anchorterminal.com/api/v1/tools/datahub.json

## 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 | Alation | DataHub | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 61 | 68 | DataHub +7 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 78 | 81 | DataHub +3 |
| Agent ergonomics | 13% (16.2 this run) | 71 | 78 | DataHub +7 |
| Security & auth | 14% (17.5 this run) | 63 | 65 | DataHub +2 |
| Payments & pricing | 10% (12.5 this run) | 0 | 10 | DataHub +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 71 | 77 | DataHub +6 |
| Transparency & trust | 7% (8.8 this run) | 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

1. 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
2. Pin `alation-ai-agent-mcp==1.0.0rc3`. An unpinned install resolves to 0.12.0, which predates the catalogue search agent
3. Call `catalog_context_search_agent` for catalogue questions. `alation_context` is deprecated and its description tells models not to call it directly
4. Watch `X-Entitlement-Usage` on Aggregated Context API responses. The 2,000 free calls never reset, and a quota 429 is not retryable
5. Page with `limit` and `skip` and follow `X-Next-Page`. The BI Source API uses `offset`, and one call returns at most 1,000 objects

### DataHub

1. Start keyword queries with `/q` and pass filters as one string, such as `entity_type = dataset AND platform = snowflake`
2. Call `search` with `num_results=0` first to get the tags, glossary terms, platforms and domains in use
3. Page with `offset`. `num_results` is capped at 50
4. Expect no write tools unless the operator set `TOOLS_IS_MUTATION_ENABLED=true`, and create tags and terms before `add_tags` or `add_terms` refers to them
5. 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).


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/alation-vs-datahub.json, and with the fewest tokens: https://www.anchorterminal.com/compare/alation-vs-datahub.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "alation", "b": "datahub"}`. From a terminal: `anchor compare alation datahub`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/alation.json and https://www.anchorterminal.com/api/v1/tools/datahub.json

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