---
title: "Infer Fields"
method: POST
path: "/generate/fields/infer-fields"
tags: ["generate"]
---

# Infer Fields

`POST /generate/fields/infer-fields`

Infer input and output fields from a domain description.

## Request body

- InferFieldsRequest — Request to infer fields from domain description
  - `user_id` string, nullable — User ID (optional, uses authenticated user if not provided)
  - `domain_description` string, required — Domain description for field inference

## Response `200`

Successful Response

- InferFieldsResponse — Field inference response
  - `success` boolean, required
  - `input_fields` RecordField[], required
    - `name` string, required
    - `type` string
    - `description` string, nullable
    - `allowed_values` string[], nullable
  - `output_fields` RecordField[], required
    - `name` string, required
    - `type` string
    - `description` string, nullable
    - `allowed_values` string[], nullable
  - `mode` string, required
  - `reasoning` string, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/pioneer/apis/brain-api.md) · [All operations](https://skmtc.net/pioneer/apis/brain-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/pioneer/brain-api/versions/31dfe831e079/schema)