---
title: "List a project's server groups"
method: GET
path: "/projects/{projectId}/server-groups"
tags: ["Environments"]
---

# List a project's server groups

`GET /projects/{projectId}/server-groups`

A server group is an immutable snapshot of a set of saved servers. Pinning one on an environment is what keeps a run off its host's live server list, so a composed run keeps testing the servers it was composed against even after the shared host is edited.

## Path parameters

- `projectId` string, required

## Response `200`

The project's server groups.

- ServerGroupPage
  - `items` ServerGroup[], required
    - `id` string, required
    - `name` string, required
    - `description` string, nullable
    - `serverIds` string[], required — The snapshotted server ids. Authoritative.
    - `serverNames` string[], required — Display names resolved at read time; a deleted server is labelled rather than dropped.
    - `createdAt` number, nullable — Epoch milliseconds.
    - `updatedAt` number, nullable

## Other responses

- `401` — Missing, invalid, revoked, or orphaned key (`UNAUTHORIZED`) — or the **target MCP server** needs an OAuth grant (`OAUTH_REQUIRED`), which is a property of the server, not your key.
- `403` — Key is valid but not allowed to do this.
- `404` — Unknown project, server, or resource.
- `429` — Per-key rate limit exceeded (60 requests/minute sustained, bursts up to 10). Honor `Retry-After` and back off with jitter.
- `500` — Something failed on MCPJam's side.

## Changes

- **2026-08-31** `4c393eb80034` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/mcpjam/apis/mcpjam-api/changes/projects/:projectId/server-groups/get.md)

---

[API](https://skmtc.dev/mcpjam/apis/mcpjam-api.md) · [All operations](https://skmtc.dev/mcpjam/apis/mcpjam-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/mcpjam/mcpjam-api/revisions/4c393eb80034/schema)