---
title: "Get judge by id"
method: GET
path: "/v1/observability/judges/{judge_id}"
tags: ["beta.observability.judges"]
---

# Get judge by id

`GET /v1/observability/judges/{judge_id}`

## Request

- Base URL: `https://api.mistral.ai`
- URL: `https://api.mistral.ai/v1/observability/judges/{judge_id}`
- Auth: HTTP bearer
- TypeScript: <https://skmtc.dev/mistral/apis/mistral-ai-api/docs/v1/observability/judges/:judge_id/get.ts> (a function with typed inputs; its response is checked against the schema)

Get judge by id

## Path parameters

- `judge_id` string, uuid, required

## Response `200`

Successful Response

- Judge
  - `id` string, uuid, required
  - `created_at` string, date-time, required
  - `updated_at` string, date-time, required
  - `deleted_at` string, date-time, nullable, required
  - `owner_id` string, uuid, required
  - `workspace_id` string, uuid, required
  - `name` string, required
  - `description` string, required
  - `model_name` string, required
  - `output` union, required
    - JudgeClassificationOutput
      - `type` 'CLASSIFICATION'
      - `options` JudgeClassificationOutputOption[], required
        - `value` string, required
        - `description` string, required
    - JudgeRegressionOutput
      - `type` 'REGRESSION'
      - `min` number
      - `min_description` string, required
      - `max` number
      - `max_description` string, required
  - `instructions` string, required
  - `tools` string[], required
  - `up_revision` string, uuid, nullable
  - `down_revision` string, uuid, nullable
  - `base_revision` string, uuid, nullable

## Other responses

- `400`: Bad Request - Invalid request parameters or data
- `404`: Not Found - Resource does not exist
- `408`: Request Timeout - Operation timed out
- `409`: Conflict - Resource conflict
- `422`: Unprocessable Entity - Validation error

## Changes

- **2026-10-12** `6c349f3bdef6`: 20 warning
  - added the new `OPTIMIZATION_NOT_FOUND` enum value to the `detail/error_code/anyOf[subschema #1: ObservabilityErrorCode]/` response property for the response status `400`
  - added the new `OPTIMIZATION_NOT_FOUND` enum value to the `detail/error_code/anyOf[subschema #1: ObservabilityErrorCode]/` response property for the response status `404`
  - added the new `OPTIMIZATION_NOT_FOUND` enum value to the `detail/error_code/anyOf[subschema #1: ObservabilityErrorCode]/` response property for the response status `408`
  - added the new `OPTIMIZATION_NOT_FOUND` enum value to the `detail/error_code/anyOf[subschema #1: ObservabilityErrorCode]/` response property for the response status `409`
  - …16 more
- …earlier changes not shown

[Operation history](https://skmtc.dev/mistral/apis/mistral-ai-api/changes/v1/observability/judges/:judge_id/get.md)

---

[API](https://skmtc.dev/mistral/apis/mistral-ai-api.md) - [All operations](https://skmtc.dev/mistral/apis/mistral-ai-api/llms.txt) - [OpenAPI document](https://skmtc.dev/mistral/apis/mistral-ai-api/revisions/08a585fb75bc?raw)