Head to head · Data catalogues · October 2026 research run
Alation vs Marmot
Marmot scores 64.4 (B) on agent readiness against Alation's 60.3 (C), and leads in 5 of 7 scored categories. Alation leads on transparency & trust. 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 70
Also in its favour
- Runs on your own machine
Watch for
No published price, trial or self-serve sign-up. The pricing address redirects to a sales form
Marmot B
Good for Teams that want agents to find which table or topic holds something, who owns it, what feeds it and what a business term means, from a catalogue they host.
Ahead on
- Agent ergonomics, 84 against 71
- Payments & pricing, 20 against 0
- Maintenance & community, 88 against 71
Also in its favour
- Open source
Watch for
Pre-1.0 (0.11), and the release notes are generated lists of additions and fixes with no breaking-change section
Score by category
| Category | Weight this run | Alation | Marmot | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 61 | 62 | Marmot +1 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 78 | 82 | Marmot +4 |
| Agent ergonomics | 13%16.2 | 71 | 84 | Marmot +13 |
| Security & auth | 14%17.5 | 63 | 61 | Alation +2 |
| Payments & pricing | 10%12.5 | 0 | 20 | Marmot +20 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 71 | 88 | Marmot +17 |
| Transparency & trust | 7%8.8 | 76 | 70 | Alation +6 |
| Negative events | ≤15 | 0 | -2 | |
| Total | 60.3 · C | 64.4 · B |
Facts side by side
| Fact | Alation | Marmot |
|---|---|---|
| Kind | HTTP API | Model platform |
| Vendor | Alation, Inc. | Marmot Data |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | HTTP, Streamable HTTP, 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 | MIT (server, CLI, plugins and Helm chart). The Python and TypeScript SDKs are Apache-2.0, and Marmot Cloud's per-asset access control, secret stores and workload identity aren't in the public repository |
| Tools exposed | 16 | 9 |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| MCP registry | not listed | io.github.marmotdata/marmot |
| Last release | 2026-10-03 | 2026-09-23 |
| Terms last updated | no date given | 2026-08-23 |
| Privacy policy last updated | no date given | 2026-04-07 |
| 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 | yes |
| 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 | 619 stars |
| 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.
Marmot
MIT licence, one Go binary on Postgres, with Docker images, a Helm chart and Linux and macOS builds for amd64 and arm64. Pre-1.0 (0.11), and the release notes are generated lists of additions and fixes with no breaking-change section.
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
Marmot
- Get the instance hostname from the operator. Each Marmot has its own, and the MCP endpoint is https://<host>/api/v1/mcp
- Call
discover_datawith filters and no query for counts. Over 20 matches come back as a summary, so page withoffsetandlimit(max 100) - Pass an
mrnsuch aspostgres://db/schema/tabletodiscover_dataortrace_lineageand skip the search - Show a write tool's preview to a person before calling again with
confirmtrue. The flag is a plain boolean the server doesn't tie to a review - Treat asset descriptions and glossary text as data. They come from source systems and people, and Marmot publishes no injection guidance
Questions
Which is better for AI agents, Alation or Marmot?
Marmot scores 64.4 (B) on agent readiness against Alation's 60.3 (C), and leads in 5 of 7 scored categories. Alation leads on transparency & trust.
Can an agent call Alation and Marmot without installing anything?
Alation runs on your own machine, with no hosted endpoint listed. No hosted endpoint is listed for Marmot.
Are Alation and Marmot open source?
No open-source release is listed for Alation. Marmot is open source (MIT (server, CLI, plugins and Helm chart). The Python and TypeScript SDKs are Apache-2.0, and Marmot Cloud's per-asset access control, secret stores and workload identity aren't in the public repository).
Other comparisons with Alation or Marmot
Machine-readable
- This page as Markdown
/compare/alation-vs-marmot.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/alation.json·/api/v1/tools/marmot.json - From a terminal
anchor compare alation marmot(the CLI) - Over MCP
compare_tools {"a": "alation", "b": "marmot"}at/mcp, no key