# Company knowledge search and data catalogues for AI agents

> 8 company knowledge & data catalogues ranked by the Anchor benchmark. Leader Glean (B). Systems that index what a company knows and holds, its documents, chats and tickets or its tables, pipelines and dashboards, so an agent can find the right one with its owner, its lineage and its permissions attached. Compared on what they connect to, whether they keep each source's access controls, what an agent can query and how they're hosted.

- Canonical: https://www.anchorterminal.com/categories/company-knowledge
- Markdown: https://www.anchorterminal.com/categories/company-knowledge.md (~2,300 tokens)
- Slim: https://www.anchorterminal.com/categories/company-knowledge.min.md (~430 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/categories/company-knowledge.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-05

Systems that index what a company knows and holds, its documents, chats and tickets or its tables, pipelines and dashboards, so an agent can find the right one with its owner, its lineage and its permissions attached. Compared on what they connect to, whether they keep each source's access controls, what an agent can query and how they're hosted.

- Tools ranked: 8 · agent-ready (BB or better): 0 · accept x402: 0 · hosted endpoints: 4 · desk reviews by the panel: 16
- JSON: https://www.anchorterminal.com/api/v1/tools.json (list) · https://www.anchorterminal.com/api/v1/rankings.json (ranked) · https://www.anchorterminal.com/api/v1/x402.json (payable) · https://www.anchorterminal.com/api/v1/capabilities.json (by capability)
- Grades run AA, A, BB, B, C, D, E, F · methodology: https://www.anchorterminal.com/benchmark/

- Capabilities in this category: knowledge.search, data.catalogue, data.lineage, work.docs, memory.graph
- https://letme.dev/knowledge.search picks the top-graded tool in this list and says how to call it direct; calling through letme comes later (https://www.anchorterminal.com/letme/index.md)

## Ranking

| # | Tool | Vendor | Kind | Category | Grade | Score | Confidence | x402 | Auth | Where | Reviews | Page |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 106 | Glean | Glean Technologies, Inc. | HTTP API | Knowledge | B | 69.8 | medium | no | OAuth or key | local | 3.5/5 (2) | https://www.anchorterminal.com/tools/glean.md |
| 154 | OpenMetadata | Collate, Inc. | Model platform | Knowledge | B | 66.9 | medium | no | OAuth or key | local | 3/5 (2) | https://www.anchorterminal.com/tools/openmetadata.md |
| 176 | Onyx | DanswerAI, Inc. (Onyx, formerly Danswer) | Model platform | Knowledge | B | 65.3 | medium | no | OAuth or key | hosted | 3/5 (2) | https://www.anchorterminal.com/tools/onyx.md |
| 181 | Marmot | Marmot Data | Model platform | Knowledge | B | 64.5 | medium | no | OAuth or key | local | 3.5/5 (2) | https://www.anchorterminal.com/tools/marmot.md |
| 213 | Atlan | Atlan | Model platform | Knowledge | B | 62.7 | medium | no | OAuth or key | hosted | 3.5/5 (2) | https://www.anchorterminal.com/tools/atlan.md |
| 263 | DataHub | Acryl Data, Inc. (DataHub) | Model platform | Knowledge | C | 59.5 | medium | no | OAuth or key | hosted + local | 3.5/5 (2) | https://www.anchorterminal.com/tools/datahub.md |
| 401 | Guru | Guru Technologies, Inc. | HTTP API | Knowledge | E | 45.3 | medium | no | OAuth or key | hosted | 2/5 (2) | https://www.anchorterminal.com/tools/guru.md |
| 452 | Overclock | Overclock | Model platform | Knowledge | F | 7.7 | medium | no | OAuth | local | 1/5 (2) | https://www.anchorterminal.com/tools/overclock.md |

Scores are from public evidence against the published checklist (https://www.anchorterminal.com/benchmark/), with Performance and Task success pending. p95 latency and context cost come from our probes, which haven't run yet.

## Summaries

### 106. Glean, B (69.8)

Enterprise search and AI assistant from Glean Technologies in San Francisco. Three public OpenAPI specs (Client, Indexing, Platform) regenerated almost daily, plus llms.txt and Markdown docs. No public price, trial or self-serve signup. Access starts with a demo request.

- Page: https://www.anchorterminal.com/tools/glean · Markdown: https://www.anchorterminal.com/tools/glean.md · JSON: https://www.anchorterminal.com/api/v1/tools/glean.json
- Capabilities: knowledge.search, memory.graph, agent.mcp-client

### 154. OpenMetadata, B (66.9)

Open-source data catalogue for discovery, lineage, data quality and governance, with connectors to external data systems. 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.

- Page: https://www.anchorterminal.com/tools/openmetadata · Markdown: https://www.anchorterminal.com/tools/openmetadata.md · JSON: https://www.anchorterminal.com/api/v1/tools/openmetadata.json
- Capabilities: data.catalogue, data.lineage, work.docs

### 176. Onyx, B (65.3)

Open-source enterprise search and chat platform, formerly Danswer. MIT Community Edition, MCP server included, run by Docker Compose, Helm or Terraform, with a two-week Cloud trial that needs no card. GHSA-q62f-rv3h-f822 (critical, CVSS 9.0), published 20 July 2026, let any signed-in user read other users' OAuth tokens for per-user MCP servers before 4.0.0.

- Page: https://www.anchorterminal.com/tools/onyx · Markdown: https://www.anchorterminal.com/tools/onyx.md · JSON: https://www.anchorterminal.com/api/v1/tools/onyx.json
- Capabilities: knowledge.search, web.search, web.fetch, agent.mcp-client · endpoint: `https://cloud.onyx.app/mcp`

### 181. Marmot, B (64.5)

Open-source data catalogue from Marmot Data Ltd in London, MIT licensed and shipped as one Go binary on Postgres. 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.

- Page: https://www.anchorterminal.com/tools/marmot · Markdown: https://www.anchorterminal.com/tools/marmot.md · JSON: https://www.anchorterminal.com/api/v1/tools/marmot.json
- Capabilities: data.catalogue, data.lineage, work.docs

### 213. Atlan, B (62.7)

Hosted data catalogue and metadata platform for finding and managing enterprise data. OAuth per user at mcp.atlan.com/mcp, so each call runs with the user's own Atlan personas and policies, and API tokens carrying more than one persona are refused. Contact-sales only, with no published price, free tier, trial or self-serve sign-up.

- Page: https://www.anchorterminal.com/tools/atlan · Markdown: https://www.anchorterminal.com/tools/atlan.md · JSON: https://www.anchorterminal.com/api/v1/tools/atlan.json
- Capabilities: data.catalogue, data.lineage, knowledge.search, work.docs, db.sql · endpoint: `https://mcp.atlan.com/mcp`

### 263. DataHub, C (59.5)

Open-source data catalogue and metadata platform from Acryl Data, trading as 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.

- Page: https://www.anchorterminal.com/tools/datahub · Markdown: https://www.anchorterminal.com/tools/datahub.md · JSON: https://www.anchorterminal.com/api/v1/tools/datahub.json
- Capabilities: data.catalogue, data.lineage, work.docs · endpoint: `https://mcp.datahub.com/mcp`

### 401. Guru, E (45.3)

Hosted knowledge platform from Guru Technologies, Inc. in Philadelphia. Hosted MCP server at https://mcp.api.getguru.com/mcp, registered as com.getguru/mcp-server in the official MCP registry. No public prices, plans or trial, and the pricing page sends everyone to sales.

- Page: https://www.anchorterminal.com/tools/guru · Markdown: https://www.anchorterminal.com/tools/guru.md · JSON: https://www.anchorterminal.com/api/v1/tools/guru.json
- Capabilities: knowledge.search, work.docs · endpoint: `https://mcp.api.getguru.com/mcp`

### 452. Overclock, F (7.7)

Hosted enterprise knowledge platform from Overclock Technologies Limited, a UK company incorporated on 22 July 2026. The privacy policy says Drive access is read-only and limited to folders a user selects, and Gmail access is read-only. No public docs, MCP tool definitions, endpoint or llms.txt.

- Page: https://www.anchorterminal.com/tools/overclock · Markdown: https://www.anchorterminal.com/tools/overclock.md · JSON: https://www.anchorterminal.com/api/v1/tools/overclock.json
- Capabilities: knowledge.search, db.hybrid, memory.graph

## How we test this category

A fixed set of questions about one test company's documents and data (who owns a table, where a metric comes from, what a policy says), asked through each listing's agent interface as users with different permissions. We check whether answers cite the right source, whether a user ever sees what they shouldn't, and how long a new document takes to become findable. This test hasn't run yet, so Task success is pending and the grades here come from the categories assessed from public evidence.