---
title: "Create Evaluator"
method: POST
path: "/evaluators/"
tags: ["Evaluators"]
---

# Create Evaluator

`POST /evaluators/`

## Query parameters

- `evaluator_id` string, uuid, nullable

## Request body

- EvaluatorCreateRequest
  - `evaluator` EvaluatorCreate, required
    - `folder_id` string, uuid, nullable
    - `flags` EvaluatorFlags — Legacy full evaluator flag set.
      - `is_application` boolean
      - `is_evaluator` boolean
      - `is_snippet` boolean
      - `is_managed` boolean
      - `is_custom` boolean
      - `is_llm` boolean
      - `is_hook` boolean
      - `is_code` boolean
      - `is_match` boolean
      - `is_feedback` boolean
      - `is_chat` boolean
      - `has_url` boolean
      - `has_script` boolean
      - `has_handler` boolean
    - `tags` object, nullable
    - `meta` object, nullable
    - `name` string, nullable
    - `description` string, nullable
    - `slug` string, nullable

## Response `200`

Successful Response

- EvaluatorResponse
  - `support_id` string, nullable
  - `support_ts` string, date-time, nullable
  - `count` integer
  - `evaluator` Evaluator
    - `folder_id` string, uuid, nullable
    - `flags` EvaluatorArtifactFlags
      - `is_application` boolean
      - `is_evaluator` boolean
      - `is_snippet` boolean
    - `tags` object, nullable
    - `meta` object, nullable
    - `name` string, nullable
    - `description` string, nullable
    - `created_at` string, date-time, nullable
    - `updated_at` string, date-time, nullable
    - `deleted_at` string, date-time, nullable
    - `created_by_id` string, uuid, nullable
    - `updated_by_id` string, uuid, nullable
    - `deleted_by_id` string, uuid, nullable
    - `slug` string, nullable
    - `id` string, uuid, nullable

## Other responses

- `422` — Validation Error

## Changes

- **2026-04-23** `925e8b901a26` — 2 info
  - added the optional property `support_id` to the response with the `200` status
  - added the optional property `support_ts` to the response with the `200` status
- **2026-04-16** `8b06b786c977` — 1 warning, 13 info
  - removed the request property `evaluator/flags/anyOf[subschema #1: EvaluatorFlags]/is_human`
  - added the new optional request property `evaluator/flags/anyOf[subschema #1: EvaluatorFlags]/has_handler`
  - added the new optional request property `evaluator/flags/anyOf[subschema #1: EvaluatorFlags]/has_script`
  - added the new optional request property `evaluator/flags/anyOf[subschema #1: EvaluatorFlags]/has_url`
  - …10 more
- **2026-02-27** `8fcd55a5a656` — 1 info
  - endpoint added
- **2025-06-27** `e3e84db47198` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/agenta-ai/apis/agenta-api/changes/evaluators/post.md)

---

[API](https://skmtc.dev/agenta-ai/apis/agenta-api.md) · [All operations](https://skmtc.dev/agenta-ai/apis/agenta-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/agenta-ai/agenta-api/revisions/5e6f53ce5d08/schema)