---
title: "Pin Feature Compatibility Version for One Cluster in One Project"
method: POST
path: "/api/atlas/v2/groups/{groupId}/clusters/{clusterName}:pinFeatureCompatibilityVersion"
tags: ["Clusters"]
---

# Pin Feature Compatibility Version for One Cluster in One Project

`POST /api/atlas/v2/groups/{groupId}/clusters/{clusterName}:pinFeatureCompatibilityVersion`

Pins the Feature Compatibility Version (FCV) to the current MongoDB version and sets the pin expiration date. If an FCV pin already exists for the cluster, calling this method will only update the expiration date of the existing pin and will not re-pin the FCV.

## Path parameters

- `groupId` string, required
- `clusterName` string, required

## Query parameters

- `envelope` boolean
- `pretty` boolean

## Response `204`

No Content

## Other responses

- `400` — Bad Request.
- `401` — Unauthorized.
- `403` — Forbidden.
- `404` — Not Found.
- `409` — Conflict.
- `429` — Too Many Requests.
- `500` — Internal Server Error.

---

[API](https://skmtc.dev/mongodb/apis/atlas-admin-api.md) · [All operations](https://skmtc.dev/mongodb/apis/atlas-admin-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/mongodb/atlas-admin-api/revisions/e37e8ef8429f/schema)