Glean
Arcade MCP server exposing Glean Client API search over custom OAuth2.
0.2.0Glean Toolkit
The Glean toolkit connects Arcade to a Glean enterprise deployment, exposing the Glean Client API so authorized users can search their organization's indexed content directly from Arcade workflows.
Capabilities
- Enterprise search: Query the user's Glean index and retrieve permission-filtered, ranked results scoped to the authenticated user.
- Paginated results: Page through results using
offsetandlimit;has_next_pagesignals additional pages, with offset paging supported up to ~2 000 results (roughly 20 pages × 100 items). - Fail-loud safety: Raises errors rather than returns misleading partial or empty pages — enforced when the fetch budget is exhausted before the requested window is filled or when offsets exceed the supported depth.
- Result trimming with transparency: When individual result items are large, the result list is trimmed to a size budget;
truncatedflags this condition andhas_next_pageremainstrueso callers can page forward or narrow the query.
OAuth
This toolkit uses OAuth 2.0. The provider is custom/self-hosted Glean (provider ID not registered with a standard Arcade provider page), so no standard Arcade provider docs link applies. OAuth credentials and the authorization flow are managed through your Glean enterprise deployment.
Secrets
GLEAN_API_URL: The base URL of your organization's Glean API endpoint (e.g.,https://<your-company>-be.glean.com). This URL is specific to your Glean enterprise instance. Obtain it from your Glean administrator or by locating your deployment's backend host in the Glean Admin Console. It is typically documented alongside other API integration details under your company's Glean deployment settings. This is required so the toolkit can route requests to the correct tenant rather than a shared Glean endpoint.
For guidance on configuring secrets in Arcade, see the Arcade secrets docs. Secrets can also be managed at https://api.arcade.dev/dashboard/auth/secrets.
Available tools(1)
| Tool name | Description | Secrets | |
|---|---|---|---|
Search the user's Glean enterprise index and return ranked results.
Results are permission-filtered to the authorized user. Use 'offset' with
'limit' to page; 'has_next_page' indicates more results remain. Offset
paging is supported up to roughly 2000 results (20 pages x 100 items);
deeper offsets raise an error rather than return a misleading empty page.
When the fetch budget is exhausted before the requested window is filled,
the tool raises rather than return a partial page (fail loud over mislead).
The result list is trimmed to a size budget when items are large;
'truncated' flags it and 'has_next_page' stays true so the caller can page
or narrow the query. | 1 |
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Requirements
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Glean.Search
Execution hints
Signals for MCP clients and agents about how this tool behaves.
Reads data without modifying any state in the target system.
May permanently delete or overwrite data in the target system.
Repeated calls with the same inputs produce no additional effect.
Communicates with external APIs, databases, or other services.
Search the user's Glean enterprise index and return ranked results. Results are permission-filtered to the authorized user. Use 'offset' with 'limit' to page; 'has_next_page' indicates more results remain. Offset paging is supported up to roughly 2000 results (20 pages x 100 items); deeper offsets raise an error rather than return a misleading empty page. When the fetch budget is exhausted before the requested window is filled, the tool raises rather than return a partial page (fail loud over mislead). The result list is trimmed to a size budget when items are large; 'truncated' flags it and 'has_next_page' stays true so the caller can page or narrow the query.
Parameters
| Parameter | Type | Req. | Description |
|---|---|---|---|
query | string | Required | Natural-language search query to run against the user's Glean index. |
limit | integer | Optional | Maximum number of results to return (1-100). Defaults to 10. |
offset | integer | Optional | 0-indexed position of the first result to return. Defaults to 0 (first result). |
Requirements
Output
json— Ranked Glean results plus pagination metadata. 'has_next_page' is true when more results are available (page with a larger 'offset'); 'truncated' is true when the result list was trimmed to fit a response-size budget.