---
title: "Link Square"
method: POST
path: "/v6/integrations/square/connection"
tags: ["Integration Management"]
---

# Link Square

`POST /v6/integrations/square/connection`

Link a new (or update an existing) Square Connection

## Request body

- SquareIntegrationParam
  - `merchantId` string, required — Square merchant ID
  - `accessToken` string, required — Square access token

## Response `200`

Success

- SuccessResponseSquareIntegrationParam
  - `result` 'SUCCESS' | 'FAILURE' — The result of the action performed.
  - `data` SquareIntegrationParam
    - `merchantId` string, required — Square merchant ID
    - `accessToken` string, required — Square access token

## Other responses

- `400` — Bad request
- `401` — Not authenticated
- `403` — Not authorized
- `404` — Endpoint not found
- `500` — Internal server error

---

[API](https://skmtc.net/tight/apis/tight-api.md) · [All operations](https://skmtc.net/tight/apis/tight-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/tight/tight-api/revisions/e9f0790a89af/schema)