---
title: "Rank firearms by a superlative"
method: GET
path: "/v1/firearms/top"
tags: ["Firearm Discovery"]
---

# Rank firearms by a superlative

`GET /v1/firearms/top`

## Request

- Base URL: `https://api.gunspec.io`
- URL: `https://api.gunspec.io/v1/firearms/top`
- Auth: one of:
  - API key in header `X-API-Key`
  - HTTP bearer

Returns the firearms that lead a single measurable stat. Records missing the underlying measurement are excluded rather than ranked as zero.

**Requires Builder tier or higher.**

## Query parameters

- `stat` 'lightest' | 'heaviest' | 'longest-range' | 'highest-rof' | 'most-compact' | 'highest-capacity' | 'most-powerful', required
- `category` string
- `limit` integer

## Headers

- `If-None-Match` string

## Response `200`

Rank firearms by a superlative

- object
  - `success` boolean, required: Always true on a successful response. Every error carries `false` and an `error` object instead.
  - `data` TopFirearm[], required: The response payload.
    - `id` string, required: Slug of the firearm.
    - `name` string, required: Display name, as the maker writes it.
    - `manufacturerId` string, nullable: Slug of the manufacturer that makes it. Resolve against `/v1/manufacturers/{id}`.
    - `categoryId` string, nullable: Slug of the category it belongs to. Resolve against `/v1/categories`.
    - `value` number, nullable, required: The figure this ranking is by, in the unit of whichever statistic was requested.
    - `unit` string, required: One of g, m, rpm, mm, rounds, J

## Other responses

- `304`: Your copy is current. No body is sent, and this response does not count toward the daily request allowance.
- `400`: Validation error
- `401`: Missing or invalid API key
- `403`: The credential is valid and the caller is not permitted. Three causes, none of which reissuing a key changes: the plan is below the endpoint's tier, the account is suspended, or the key is not attached to the thing being acted on, meaning a user account for `/v1/me` or a shop for `/v1/vendor`. Distinct from 401, which means the credential is missing, malformed or expired and a new one can work.
- `429`: A limit was reached. `RATE_LIMITED` is the per-minute limit: wait `Retry-After` seconds (a minute) and retry. `DAILY_CAP_EXCEEDED` is the plan's daily limit, per key: nothing will be served until the counters return to zero at midnight UTC. `MONTHLY_CAP_EXCEEDED` is the plan's monthly allowance, for the whole account: nothing will be served until midnight UTC on the first of next month, or until the plan changes. For both, `Retry-After` is the seconds until then and `error.resetsAt` says when as an instant. Calls made after a refusal are refused too and do not spend the month, and a free key that keeps calling is paused, so stop at the first one and resume at the reset.
- `500`: Internal server error

---

[API](https://skmtc.dev/gunspec/apis/gunspec-io-api.md) · [All operations](https://skmtc.dev/gunspec/apis/gunspec-io-api/llms.txt) · [OpenAPI document](https://skmtc.dev/gunspec/apis/gunspec-io-api/revisions/f2e974d8b05c?raw)