Note: Lucid Origin is available through the MCP Server (Multi-Cloud Proxy) workflow as well — see Connect to Leonardo.AI with the MCP Server.

Sample Request

curl --request POST \
     --url https://cloud.leonardo.ai/api/rest/v2/generations \
     --header 'accept: application/json' \
     --header 'authorization: Bearer <YOUR_API_KEY>' \
     --header 'content-type: application/json' \
     --data '{
       "model": "lucid-origin",
       "parameters": {
           "mode": "FAST",
           "width": 1200,
           "height": 1200,
           "prompt": "a portrait-style photograph featuring a fox with soft, fluffy orange fur against a smooth navy blue background",
           "quantity": 4,
           "style_ids": [
               "111dc692-d470-4eec-b791-3475abac4c46"
           ]
       },
       "public": false
   }'

API Request Endpoint, Headers, Parameters

Endpoint

https://cloud.leonardo.ai/api/rest/v2/generations

Headers

--header "accept: application/json" \
--header "authorization: Bearer <YOUR_API_KEY>" \
--header "content-type: application/json"

Body Parameters

Parameter	Type	Definition
guidances	`object`	Optional. Object defining image guidance inputs that influence the generated result.
guidances.content	`array`	Optional. References the form and content from an input image to guide the generation (limited to 1). Each reference includes `image.id`, `image.type` (`UPLOADED` or `GENERATED`), and `strength` (`LOW`, `MID`, `HIGH`). Defaults to `MID`.
guidances.style	`array`	Optional. References the style from an input image to guide the generation (limited to 1). Each reference includes `image.id`, `image.type` (`UPLOADED` or `GENERATED`), and `strength` (`LOW`, `MID`, `HIGH`, `ULTRA`, `MAX`). Defaults to `MID`.
height	`integer`	Optional. Height of the image to generate in pixels. Supports `16` to `3616` in multiples of `8`. Defaults to `1200`.
mode	`string`	Optional. Generation mode. Accepts `FAST` or `ULTRA`. Use this instead of `quality` for all proprietary models. Defaults to `FAST`.
model	`string`	Required. Model identifier. Set to `lucid-origin`.
prompt	`string`	Required. Text prompt describing what image you want the model to generate. Maximum `2000` characters.
prompt_enhance	`string`	Optional. Controls prompt enhancement. Accepts `AUTO`, `ON`, or `OFF`. Defaults to `AUTO`.
public	`boolean`	Optional. Boolean flag that determines whether the generated images show in the community feed (`true`) or remain private (`false`).
quantity	`integer`	Optional. Number of images to generate in a single request. Supports `1` to `8`. Defaults to `4`.
seed	`integer`	Optional. Apply a fixed seed (`0` to `2147483647`) to maintain consistency across generation sets.
style_ids	`array`	Optional. Array of style UUIDs used to apply a preset style to the output (limited to 1 style). Defaults to `["111dc692-d470-4eec-b791-3475abac4c46"]` (Dynamic). Refer to the table below for a list of UUIDs.
width	`integer`	Optional. Width of the image to generate in pixels. Supports `16` to `3840` in multiples of `8`. Defaults to `1200`.

List of Style IDs

Preset Style	UUID
Cinematic	`a5632c7c-ddbb-4e2f-ba34-8456ab3ac436`
Creative	`6fedbf1f-4a17-45ec-84fb-92fe524a29ef`
Dynamic	`111dc692-d470-4eec-b791-3475abac4c46`
Fashion	`594c4a08-a522-4e0e-b7ff-e4dac4b6b622`
None	`556c1ee5-ec38-42e8-955a-1e82dad0ffa1`
Portrait	`ab5a4220-7c42-41e5-a578-eddb9fed3d75`
Stock Photo	`5bdc3f2a-1be6-4d1c-8e77-992a30824a2c`
Vibrant	`dee282d3-891f-4f73-ba02-7f8131e5541b`