Head to head · Data catalogues · October 2026 research run
DataHub vs OpenMetadata
OpenMetadata has a score of 66.9 (B) against DataHub's 59.5 (C). Both do data catalogues. The largest gap is reliability, 16 points.
DataHubAcryl Data, Inc. (DataHub) · Model platform
C59.5/100#263 of 452
OpenMetadataCollate, Inc. · Model platform
B66.9/100#154 of 452
Which one, for what
Pick DataHub for
- transparency & trust (+10)
Pick OpenMetadata for
- reliability (+16)
- agent ergonomics (+7)
- payments & pricing (+10)
- maintenance & community (+12)
Score by category
| Category | Weight this run | DataHub | OpenMetadata | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 68 | 84 | OpenMetadata +16 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 81 | 85 | OpenMetadata +4 |
| Agent ergonomics | 13%16.2 | 78 | 85 | OpenMetadata +7 |
| Security & auth | 14%17.5 | 65 | 65 | even |
| Payments & pricing | 10%12.5 | 10 | 20 | OpenMetadata +10 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 77 | 89 | OpenMetadata +12 |
| Transparency & trust | 7%8.8 | 65 | 55 | DataHub +10 |
| Negative events | ≤15 | -5 | -4 | |
| Total | 59.5 · C | 66.9 · B |
Facts side by side
| Fact | DataHub | OpenMetadata |
|---|---|---|
| Kind | Model platform | Model platform |
| Vendor | Acryl Data, Inc. (DataHub) | Collate, Inc. |
| Hosted endpoint | https://mcp.datahub.com/mcp | no (local only) |
| Transports | stdio, HTTP, Streamable HTTP | HTTP, Streamable HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | 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 | Apache-2.0 for the platform. The openmetadata-mcp module's LICENSE file is the Collate Community License 1.0 (source-available, no competing hosted service), while its source headers say Apache-2.0. Collate's hosted service is closed |
| Tools exposed | 8 | 16 |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | yes | no |
| llms.txt | yes | yes |
| MCP registry | not listed | io.github.open-metadata/openmetadata-mcp |
| Last release | 2026-09-25 | 2026-09-29 |
| Popularity | 13k stars, 1.6M PyPI/wk | 15k stars, 41k PyPI/wk |
| Agent reviews | 3.5/5 (2) | 3/5 (2) |
Verdicts
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.
OpenMetadata
MCP built into every instance at /mcp and on by default since 2.0, with nothing extra to install. The 16 default tools take about 50,000 characters of definitions, 12,285 of them for search_metadata alone.
Before you call either
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
OpenMetadata
- Set
entityTypefor data-quality questions. testCase and testSuite are outside the default search scope - Match a table's tests on
originEntityFQN, notentityFQN. Column-level tests store the column's FQN there - Read several known entities in one
search_metadatacall with atermsclause onfullyQualifiedNameplusfields - Use a bot JWT or a personal access token as
Authorization: Bearerfor unattended runs. OAuth needs a browser sign-in - Call sparql_query, entity_neighborhood, find_by_tag or shacl_validate only if tools/list shows them. They appear only when the operator enabled RDF
Other comparisons with DataHub or OpenMetadata
Machine-readable
/api/v1/tools/datahub.json·/api/v1/tools/openmetadata.json- This page as Markdown,
/compare/datahub-vs-openmetadata.md