---
title: "Check if one user follows another"
method: GET
path: "/x/followers/check"
tags: ["Users"]
---

# Check if one user follows another

`GET /x/followers/check`

Returns whether one public account follows another.

## Query parameters

- `source` string, required
- `target` string, required

## Response `200`

Follow check result

- object
  - `isFollowing` boolean, required
  - `isFollowedBy` boolean, required
  - `sourceUsername` string, required
  - `targetUsername` string, required

## Other responses

- `400` — Missing or invalid params
- `401` — Unauthenticated
- `402` — Payment required. MPP reads include `WWW-Authenticate`. Authenticated reads include balances and checkout; a failed request never creates checkout. Guest keys offer top-up.
- `424` — Dependency unavailable, unauthorized, or rate limited. Default v1 returns 502. The best-practice response contract returns 424 for transparent dependency failures.
- `429` — Xquik tier rate limit exceeded. The response includes a `Retry-After` header with the number of seconds to wait before retrying.
- `502` — Dependency unavailable, unauthorized, or rate limited. Default v1 returns 502. The best-practice response contract returns 424 for transparent dependency failures.

## Changes

- **2026-08-24** `5b381ffca02c` — 1 breaking, 1 info
  - the `oneOf[subschema #4]/allOf[subschema #2]/` response's property type changed from no type to `object` for status `402`
  - added 'propertyNames' constraint to the `oneOf[subschema #4]/allOf[subschema #2]/` response property for the status `402`
- **2026-08-19** `73cd0a1d989c` — 108 warning
  - added the new `closed` enum value to the `allOf[#/components/schemas/Error]/error/oneOf[subschema #1: LegacyErrorCode]/` response property for the response status `429`
  - added the new `closed` enum value to the `allOf[#/components/schemas/Error]/error/oneOf[subschema #2: StructuredError]/code` response property for the response status `429`
  - added the new `closed` enum value to the `error/oneOf[subschema #1: LegacyErrorCode]/` response property for the response status `400`
  - added the new `closed` enum value to the `error/oneOf[subschema #1: LegacyErrorCode]/` response property for the response status `401`
  - …104 more
- …earlier changes not shown

[Full history](https://skmtc.dev/xquik-dev/apis/xquik-api-3/changes/x/followers/check/get.md)

---

[API](https://skmtc.dev/xquik-dev/apis/xquik-api-3.md) · [All operations](https://skmtc.dev/xquik-dev/apis/xquik-api-3/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/xquik-dev/xquik-api-3/revisions/16a094f7bb27/schema)