Add group search and autocomplete API endpoints

[mintlify]

Summary

• Added two new Assistant API endpoints for group-based search
• Search over groups: Search documentation chunks grouped by page
• Autocomplete over groups: Real-time autocomplete with results grouped by page

Both endpoints support filtering by version, language, and other criteria, with configurable highlight options and pagination.

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Note

Low Risk
Documentation-only update that expands the published Assistant API surface (new endpoints/schemas) but does not change runtime behavior; main risk is spec/contract mismatches if the backend doesn’t match the new definitions.

Overview
Adds two new Assistant search endpoints documented as group/page-based results: POST /v1/search/{domain}/groups and POST /v1/search/{domain}/groups/autocomplete (plus new MDX reference pages).

Updates the OpenAPI specs (discovery-openapi.json and localized variants) with new request/response schemas (GroupSearchBody, GroupAutocompleteBody, GroupSearchResponse, filters, highlight options, and error shape), and wires the new pages into docs.json navigation for EN/FR/ES/ZH (with minor FR text punctuation fixes).

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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Numeric exclusiveMinimum invalid in OpenAPI 3.0.1 spec

Medium Severity

The spec declares "openapi": "3.0.1" but uses "exclusiveMinimum": 0 as a numeric value, which is only valid in OpenAPI 3.1+. In OpenAPI 3.0.x, exclusiveMinimum is a boolean modifier for minimum, not a standalone numeric constraint. This means parsers and validation tools following the 3.0.x spec will either reject the schema or misinterpret the constraint — potentially allowing 0 for fields like page_size, group_size, max_length, max_num, and window where the intent is to require values greater than zero. The correct 3.0.1 form is "minimum": 1 for integers, or "minimum": 0, "exclusiveMinimum": true. This same issue exists in all four locale files.

Additional Locations (2)

• discovery-openapi.json#L1005-L1006
• discovery-openapi.json#L1017-L1018