OC Maker

curl --request POST \
  --url https://api.goenhance.ai/api/v1/oc-maker \
  --header 'Content-Type: application/json' \
  --data '
{
  "prompt": "You are an OC generator. Create a character based on: a stoic knight with silver hair.\nReturn ONLY a JSON object: {\"role_name\":\"\",\"appearance\":\"\",\"personality\":\"\",\"oc_prompt\":\"\",\"oc_ratio\":\"3:4\"}\nThe oc_prompt must be an English image prompt starting with \"Anime style, Single character, full body, front view\".",
  "image_render_model": "seedream",
  "ratio": "3:4"
}
'

import requests

url = "https://api.goenhance.ai/api/v1/oc-maker"

payload = {
    "prompt": "You are an OC generator. Create a character based on: a stoic knight with silver hair.
Return ONLY a JSON object: {\"role_name\":\"\",\"appearance\":\"\",\"personality\":\"\",\"oc_prompt\":\"\",\"oc_ratio\":\"3:4\"}
The oc_prompt must be an English image prompt starting with \"Anime style, Single character, full body, front view\".",
    "image_render_model": "seedream",
    "ratio": "3:4"
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    prompt: 'You are an OC generator. Create a character based on: a stoic knight with silver hair.\nReturn ONLY a JSON object: {"role_name":"","appearance":"","personality":"","oc_prompt":"","oc_ratio":"3:4"}\nThe oc_prompt must be an English image prompt starting with "Anime style, Single character, full body, front view".',
    image_render_model: 'seedream',
    ratio: '3:4'
  })
};

fetch('https://api.goenhance.ai/api/v1/oc-maker', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.goenhance.ai/api/v1/oc-maker",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'prompt' => 'You are an OC generator. Create a character based on: a stoic knight with silver hair.
Return ONLY a JSON object: {"role_name":"","appearance":"","personality":"","oc_prompt":"","oc_ratio":"3:4"}
The oc_prompt must be an English image prompt starting with "Anime style, Single character, full body, front view".',
    'image_render_model' => 'seedream',
    'ratio' => '3:4'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.goenhance.ai/api/v1/oc-maker"

	payload := strings.NewReader("{\n  \"prompt\": \"You are an OC generator. Create a character based on: a stoic knight with silver hair.\\nReturn ONLY a JSON object: {\\\"role_name\\\":\\\"\\\",\\\"appearance\\\":\\\"\\\",\\\"personality\\\":\\\"\\\",\\\"oc_prompt\\\":\\\"\\\",\\\"oc_ratio\\\":\\\"3:4\\\"}\\nThe oc_prompt must be an English image prompt starting with \\\"Anime style, Single character, full body, front view\\\".\",\n  \"image_render_model\": \"seedream\",\n  \"ratio\": \"3:4\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.goenhance.ai/api/v1/oc-maker")
  .header("Content-Type", "application/json")
  .body("{\n  \"prompt\": \"You are an OC generator. Create a character based on: a stoic knight with silver hair.\\nReturn ONLY a JSON object: {\\\"role_name\\\":\\\"\\\",\\\"appearance\\\":\\\"\\\",\\\"personality\\\":\\\"\\\",\\\"oc_prompt\\\":\\\"\\\",\\\"oc_ratio\\\":\\\"3:4\\\"}\\nThe oc_prompt must be an English image prompt starting with \\\"Anime style, Single character, full body, front view\\\".\",\n  \"image_render_model\": \"seedream\",\n  \"ratio\": \"3:4\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.goenhance.ai/api/v1/oc-maker")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"prompt\": \"You are an OC generator. Create a character based on: a stoic knight with silver hair.\\nReturn ONLY a JSON object: {\\\"role_name\\\":\\\"\\\",\\\"appearance\\\":\\\"\\\",\\\"personality\\\":\\\"\\\",\\\"oc_prompt\\\":\\\"\\\",\\\"oc_ratio\\\":\\\"3:4\\\"}\\nThe oc_prompt must be an English image prompt starting with \\\"Anime style, Single character, full body, front view\\\".\",\n  \"image_render_model\": \"seedream\",\n  \"ratio\": \"3:4\"\n}"

response = http.request(request)
puts response.read_body

{
  "code": 0,
  "msg": "Success",
  "data": {
    "img_uuid": "c12b656c-747a-44fd-9c80-add79b0c52d5"
  }
}

Other Models

OC Maker

Two-stage generation in a single request: an LLM turns your prompt into a structured character sheet, then that result is rendered into an image.

You supply the full LLM prompt. No style presets or prompt templates are applied server-side — compose whatever prompt you need.

Required output contract: your prompt MUST instruct the model to return a JSON object containing an oc_prompt field. That field becomes the image prompt. If the model does not return parseable JSON with oc_prompt, the job fails.

Optionally include oc_ratio in that JSON to let the model pick the aspect ratio; the ratio request field overrides it.

Pricing: 1 token per request (= $0.02). Covers both the text and image stages.

Returns an img_uuid; poll GET /api/v1/jobs/detail (or use custom_callback_url) to get the result. The result contains two entries: the full LLM JSON (type: "json") and the rendered image (type: "image", image_type: "main_view").

POST

api

oc-maker

OC Maker

curl --request POST \
  --url https://api.goenhance.ai/api/v1/oc-maker \
  --header 'Content-Type: application/json' \
  --data '
{
  "prompt": "You are an OC generator. Create a character based on: a stoic knight with silver hair.\nReturn ONLY a JSON object: {\"role_name\":\"\",\"appearance\":\"\",\"personality\":\"\",\"oc_prompt\":\"\",\"oc_ratio\":\"3:4\"}\nThe oc_prompt must be an English image prompt starting with \"Anime style, Single character, full body, front view\".",
  "image_render_model": "seedream",
  "ratio": "3:4"
}
'

import requests

url = "https://api.goenhance.ai/api/v1/oc-maker"

payload = {
    "prompt": "You are an OC generator. Create a character based on: a stoic knight with silver hair.
Return ONLY a JSON object: {\"role_name\":\"\",\"appearance\":\"\",\"personality\":\"\",\"oc_prompt\":\"\",\"oc_ratio\":\"3:4\"}
The oc_prompt must be an English image prompt starting with \"Anime style, Single character, full body, front view\".",
    "image_render_model": "seedream",
    "ratio": "3:4"
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    prompt: 'You are an OC generator. Create a character based on: a stoic knight with silver hair.\nReturn ONLY a JSON object: {"role_name":"","appearance":"","personality":"","oc_prompt":"","oc_ratio":"3:4"}\nThe oc_prompt must be an English image prompt starting with "Anime style, Single character, full body, front view".',
    image_render_model: 'seedream',
    ratio: '3:4'
  })
};

fetch('https://api.goenhance.ai/api/v1/oc-maker', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.goenhance.ai/api/v1/oc-maker",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'prompt' => 'You are an OC generator. Create a character based on: a stoic knight with silver hair.
Return ONLY a JSON object: {"role_name":"","appearance":"","personality":"","oc_prompt":"","oc_ratio":"3:4"}
The oc_prompt must be an English image prompt starting with "Anime style, Single character, full body, front view".',
    'image_render_model' => 'seedream',
    'ratio' => '3:4'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.goenhance.ai/api/v1/oc-maker"

	payload := strings.NewReader("{\n  \"prompt\": \"You are an OC generator. Create a character based on: a stoic knight with silver hair.\\nReturn ONLY a JSON object: {\\\"role_name\\\":\\\"\\\",\\\"appearance\\\":\\\"\\\",\\\"personality\\\":\\\"\\\",\\\"oc_prompt\\\":\\\"\\\",\\\"oc_ratio\\\":\\\"3:4\\\"}\\nThe oc_prompt must be an English image prompt starting with \\\"Anime style, Single character, full body, front view\\\".\",\n  \"image_render_model\": \"seedream\",\n  \"ratio\": \"3:4\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.goenhance.ai/api/v1/oc-maker")
  .header("Content-Type", "application/json")
  .body("{\n  \"prompt\": \"You are an OC generator. Create a character based on: a stoic knight with silver hair.\\nReturn ONLY a JSON object: {\\\"role_name\\\":\\\"\\\",\\\"appearance\\\":\\\"\\\",\\\"personality\\\":\\\"\\\",\\\"oc_prompt\\\":\\\"\\\",\\\"oc_ratio\\\":\\\"3:4\\\"}\\nThe oc_prompt must be an English image prompt starting with \\\"Anime style, Single character, full body, front view\\\".\",\n  \"image_render_model\": \"seedream\",\n  \"ratio\": \"3:4\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.goenhance.ai/api/v1/oc-maker")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"prompt\": \"You are an OC generator. Create a character based on: a stoic knight with silver hair.\\nReturn ONLY a JSON object: {\\\"role_name\\\":\\\"\\\",\\\"appearance\\\":\\\"\\\",\\\"personality\\\":\\\"\\\",\\\"oc_prompt\\\":\\\"\\\",\\\"oc_ratio\\\":\\\"3:4\\\"}\\nThe oc_prompt must be an English image prompt starting with \\\"Anime style, Single character, full body, front view\\\".\",\n  \"image_render_model\": \"seedream\",\n  \"ratio\": \"3:4\"\n}"

response = http.request(request)
puts response.read_body

{
  "code": 0,
  "msg": "Success",
  "data": {
    "img_uuid": "c12b656c-747a-44fd-9c80-add79b0c52d5"
  }
}

Prompt contract

This endpoint runs two stages: a language model turns your prompt into a structured character sheet, then that sheet is rendered into an image. Your prompt must instruct the model to return a JSON object containing an oc_prompt field — that field becomes the image prompt. If the model returns anything that cannot be parsed as JSON, or the JSON has no oc_prompt, the job fails.

Create a character based on: a stoic knight with silver hair.

Return ONLY a JSON object in this format:
{"role_name":"","appearance":"","personality":"","oc_prompt":"","oc_ratio":"3:4"}

"oc_prompt" must be an English image prompt starting with
"Anime style, Single character, full body, front view".

Any other keys you ask for (role_name, personality, character_backstory, …) are passed through to the result untouched, so you can shape the character sheet however you like. oc_ratio is optional — it lets the model choose the aspect ratio. The ratio request field overrides it, and 3:4 is used when neither is present.

Result

Unlike the other image endpoints, the result array contains two entries: the full JSON from the text stage, then the rendered image. Poll GET /api/v1/jobs/detail or use custom_callback_url.

{
  "code": 0,
  "msg": "Success",
  "data": {
    "img_uuid": "0f1b8c2e-4a7d-4c31-9f28-6de4a1b9c503",
    "status": "success",
    "type": "oc-maker",
    "start_time": "2026-08-02T09:14:22.108Z",
    "end_time": "2026-08-02T09:15:04.771Z",
    "model_id": "-1",
    "json": [
      {
        "type": "json",
        "value": {
          "role_name": "Sir Aldric",
          "appearance": "Tall knight with long silver hair and a scarred jaw",
          "personality": "Stoic, loyal, slow to anger",
          "oc_prompt": "Anime style, Single character, full body, front view, a tall knight with long silver hair...",
          "oc_ratio": "3:4"
        },
        "duration": 28.4,
        "link_expired_at": "2026-08-03T09:15:04.771Z"
      },
      {
        "type": "image",
        "image_type": "main_view",
        "value": "https://cdn3.goenhance.ai/user/seedream/9dfdb4b5-7ef7-4fe7-93ff-b9eb76cc431d.jpg",
        "duration": 28.4,
        "link_expired_at": "2026-08-03T09:15:04.771Z"
      }
    ],
    "job_type": "oc-maker"
  }
}

The value of the type: "json" entry is an object, not a URL string — the only endpoint where this happens. Read the image from the entry with type: "image" rather than assuming json[0] is the image.

A few details worth knowing:

link_expired_at applies to the image link. It is also present on the JSON entry, where it has no meaning — ignore it there.
duration measures the image stage only, not the text stage, so it under-reports total latency.
Both stages share one img_uuid and are billed once. A failure in either stage fails the whole job and refunds the tokens.

Headers

Authorization

string

Body

application/json

prompt

string

required

Full prompt for the text stage. Must instruct the model to return a JSON object containing an oc_prompt field.

Required string length: 1 - 8000

image_render_model

enum<string>

required

Rendering backend used for the image stage.

Available options:

seedream,

gpt-image-2

system_prompt

string

Optional system prompt for the text stage. Defaults to a generic assistant prompt.

Maximum string length: 4000

text_model

string

Optional LLM model id for the text stage. Defaults to gemini-3-pro-preview.

Maximum string length: 100

ratio

enum<string>

Optional. Aspect ratio of the generated image. Overrides oc_ratio from the LLM output; defaults to 3:4.

Available options:

1:1,

2:3,

3:2,

4:3,

3:4,

16:9,

9:16

custom_callback_url

string<uri>

Optional. A publicly accessible HTTPS URL. When the task status changes (processing / success / failed), GoEnhance sends a POST request to this URL. The request body is identical to the response of GET /api/v1/jobs/detail. If your server does not respond with HTTP 200, the notification is retried up to 3 times, with a 3-second timeout per attempt.

Example:

"https://your-server.com/goenhance/callback"

Response

code

integer

required

msg

string

required

data

object

required

Show child attributes

Getting started

API

OC Maker

Prompt contract

Result

Headers

Body

Response

​Prompt contract

​Result

Headers

Body

Response

Prompt contract

Result