> ## Documentation Index
> Fetch the complete documentation index at: https://docs.iqrush.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Saved baseline compatibility — HTTP

> Recognize the compatibility response for saved baselines.

Recognize the compatibility response for saved baselines.

**Method:** `GET`

**Path:** `/projects/{project_id}/baselines`

Use the HTTP base for your authorized environment and an `Authorization: Bearer` header. See [authentication](/developers/guides/04-authentication) and [HTTP setup](/developers/guides/06-http-quickstart).

## Parameters

This table covers the standard read profile. It excludes internal application routes and advanced analysis controls.

| Name | Location | Type | Required | Default | Meaning |
| - | - | - | - | - | - |
| `project_id` | path | string | Yes | — | Project ID from list\_projects. Select the project in the intended workspace and environment. |

## Request example

Set `IQRUSH_API_BASE` and `IQRUSH_ACCESS_TOKEN` through secure configuration. Replace project/run IDs and sample selections with values returned by your account. JSON objects and arrays are encoded as query strings.

```bash theme={null}
curl --fail-with-body --silent --show-error --get \
  --header "Authorization: Bearer ${IQRUSH_ACCESS_TOKEN}" \
  --header "Accept: application/json" \
  "${IQRUSH_API_BASE%/}/projects/${IQRUSH_PROJECT_ID}/baselines"
```

## Read the response

Returns `baselines: []`, `count: 0`, and a note explaining that saved baselines are unavailable.

This is empty for every project in this edition. Use explicit run IDs or a drift reference; do not tell users to create a baseline through an unavailable tool.

### Fields to use

These selected fields explain the example and the result to preserve. Field presence depends on the response; this is not a complete response schema.

| Field | Meaning and use |
| - | - |
| `baselines` | Empty in this edition; no saved baseline object is available through this tool. |
| `count` | Zero for the current compatibility response. Use explicit run IDs for comparisons. |

Selected response fields from IQRush Dev. Lists are shortened and project/run IDs are placeholders; this is not the full response.

```json theme={null}
{
  "project_id": "PROJECT_ID",
  "baselines": [],
  "count": 0
}
```

The empty list is the compatibility behavior described above.

MCP equivalent: [`list_baselines`](/developers/tools/list_baselines). Use the parameters and defaults on this page for HTTP.

## If the result is unavailable

Check HTTP status and the response’s `error` field before using data. A successful empty response does not establish a zero value. Preserve `not_available`, `not_available_reason`, `unavailable_reason`, and `linked` where returned. [Errors and recovery](/developers/guides/13-errors) shows observed examples.


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