---
title: "Compare Brands"
method: GET
path: "/api/public/brands/compare"
tags: ["Brand Library - Public"]
---

# Compare Brands

`GET /api/public/brands/compare`

## Request

- Base URL: `https://geo.sig.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://geo.sig.ai/api/public/brands/compare`
- Auth: none declared

Compare multiple brands side-by-side.

Performance: O(1) indexed lookup using SQL IN clause on slug column.

## Query parameters

- `brands` string, required: Comma-separated brand slugs (max 5)

## Response `200`

Successful Response

- BrandComparison
  - `brands` BrandDetail[], required
    - `id` string, required
    - `brand` string, required
    - `vertical` string, required
    - `vertical_canonical` string, nullable
    - `signal` string, nullable, required
    - `signal_date` string, nullable, required
    - `slug` string, required
    - `website` string, nullable
    - `subcategory` string, nullable
    - `tier` string, nullable
    - `rank` integer, nullable
    - `notes` string, nullable
    - `company_overview` string, nullable
    - `company_overview_source` string, nullable
    - `company_overview_updated_at` string, nullable
    - `last_updated` string, nullable
    - `faqs` unknown
    - `raw_response` object, nullable
    - `tags` string[]
    - `entity_type` string, nullable
    - `parent_slug` string, nullable
    - `ai_visibility_score` integer, nullable
    - `ai_trend_direction` string, nullable

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/sig/apis/ai-visibility-intelligence-api.md) · [All operations](https://skmtc.dev/sig/apis/ai-visibility-intelligence-api/llms.txt) · [OpenAPI document](https://skmtc.dev/sig/apis/ai-visibility-intelligence-api/revisions/3ec39f9be9e0?raw)