---
title: "Freeze Calibration Set"
method: POST
path: "/core/calibration-sets/{set_id}/freeze"
tags: ["Calibration"]
---

# Freeze Calibration Set

`POST /core/calibration-sets/{set_id}/freeze`

## Request

- Base URL: `https://api.anyreach.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.anyreach.ai/core/calibration-sets/{set_id}/freeze`
- Auth: HTTP bearer

Freeze the set so agreement runs over an immutable population.

## Path parameters

- `set_id` string, required

## Headers

- `x-anyreach-org` string, nullable: Organization ID for user PATs (pat_ prefix tokens)

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/anyreach/apis/anyreach-api.md) - [All operations](https://skmtc.dev/anyreach/apis/anyreach-api/llms.txt) - [OpenAPI document](https://skmtc.dev/anyreach/apis/anyreach-api/revisions/2eddf40c8c93?raw)