---
title: "Get the unique-event definition"
method: GET
path: "/api/event_uniqueness/"
tags: ["Filters, rules and taint"]
---

# Get the unique-event definition

`GET /api/event_uniqueness/`

## Request

- Base URL: `https://eyalsec.com`
- URL: `https://eyalsec.com/api/event_uniqueness/`
- Auth: one of:
  - API key in header `X-API-Key`
  - API key in cookie `__Host-es2session`

Returns which event fields make two detections DIFFERENT events for the given scope (machine query param = a machine public_id, '' or absent = the account default). `axes` is the definition in force after resolution (machine setting, else account default, else the built-in default of source+detail); `inherited` says whether this exact scope carries its own row or is inheriting one. `baseline` names the parts that are always keyed and cannot be switched off. Fields not listed in `axes` do not split events: two detections differing only in an unlisted field are one row whose count increments.

This is a **read**: a read-only API key may call it.

## Query parameters

- `agent_kind` string, required
- `machine` string
- `event` integer

## Response `200`

OK.

- object

## Other responses

- `401`: The API key is missing, wrong, revoked or expired.
- `429`: A rate limit was hit, or the account is locked after wrong passwords. Retry-After gives the seconds to wait.
- `default`: An error. Check the status first; the body carries a short message, as JSON ({"error": "..."}) on most endpoints and as plain text on some. 400: malformed JSON, an invalid regex, an unreadable cursor or date, or an unknown value. 401: the API key is missing, wrong, revoked or expired. 403: a failed CSRF check, a read-only key trying to write, a product or feature not enabled on your account, a wrong password, or a write on an account limited to reading. 404: not found, including things that belong to another account. 409: conflict with the current state. 422: a field is missing or invalid. 429: a rate limit was hit, or the account is locked after wrong passwords. 500: something failed on our side.

---

[API](https://skmtc.dev/eyalsec/apis/eyalsec-api.md) · [All operations](https://skmtc.dev/eyalsec/apis/eyalsec-api/llms.txt) · [OpenAPI document](https://skmtc.dev/eyalsec/apis/eyalsec-api/revisions/dc7520689cf1?raw)