diff --git a/crates/api_clients/world_labs_client/src/api/api_types/mod.rs b/crates/api_clients/world_labs_client/src/api/api_types/mod.rs
index 98f3688dc0..6367d2527b 100644
--- a/crates/api_clients/world_labs_client/src/api/api_types/mod.rs
+++ b/crates/api_clients/world_labs_client/src/api/api_types/mod.rs
@@ -1,3 +1,4 @@
 pub mod object_id;
 pub mod upload_id;
 pub mod upload_mime_type;
+pub mod world_id;
diff --git a/crates/api_clients/world_labs_client/src/api/api_types/world_id.rs b/crates/api_clients/world_labs_client/src/api/api_types/world_id.rs
new file mode 100644
index 0000000000..921ea44877
--- /dev/null
+++ b/crates/api_clients/world_labs_client/src/api/api_types/world_id.rs
@@ -0,0 +1,11 @@
+/// Type for World IDs.
+/// These are used to refer to worlds
+/// These appear to be bare UUIDs.
+#[derive(Clone, Debug)]
+pub struct WorldId(pub String);
+
+impl WorldId {
+  pub fn as_str(&self) -> &str {
+    &self.0
+  }
+}
diff --git a/crates/api_clients/world_labs_client/src/api/requests/_metadata/request_flow_3_firefox/r8_worlds_request_payload.json b/crates/api_clients/world_labs_client/src/api/requests/_metadata/request_flow_3_firefox/r8_worlds_request_payload.json
new file mode 100644
index 0000000000..4d2992a5d0
--- /dev/null
+++ b/crates/api_clients/world_labs_client/src/api/requests/_metadata/request_flow_3_firefox/r8_worlds_request_payload.json
@@ -0,0 +1,18 @@
+{
+  "permission": {
+    "public": true
+  },
+  "generation_input": {
+    "model": "Marble 0.1-plus",
+    "prompt": {
+      "type": "image",
+      "image_prompt": {
+        "uri": "https://cdn.marble.worldlabs.ai/object/cf326bd0-b7eb-454c-b433-54f36eb4d5a6/asset.jpg"
+      },
+      "text_prompt": "The scene is a cozy A-frame cabin interior, rendered in a realistic style, exuding warmth and rustic charm, creating a tranquil and inviting atmosphere. A prominent wooden A-frame structure defines the architecture, featuring angled timber beams that converge towards the peak of the ceiling. The walls and ceiling are paneled with warm-toned wooden planks, creating a consistent and enveloping aesthetic throughout the space. A large, floor-to-ceiling window dominates one wall, offering an expansive view of a lush forest with tall trees and autumnal foliage outside, suggesting the cabin is nestled deep within nature. A plush bed occupies a significant portion of the floor space, adorned with a dark grey duvet, numerous pillows, and a rust-colored throw blanket, inviting comfort and relaxation. A cream-colored faux fur rug rests on the wooden floor beside the bed, adding texture and a soft landing. A black wood-burning stove with a visible fire provides heat and a focal point for the room, situated near the large window. The floor is made of polished light wood planks. On the other side of the cabin, a continuation of the wooden paneling and A-frame structure mirrors the visible portion, maintaining architectural consistency. Another large window, identical in style and size to the visible one, would likely offer a similar forest view on the opposite side of the cabin, bathing the entire space in natural light filtered through the trees. A small, rustic armchair with a woven texture would be positioned near the stove on the opposite side, providing an additional seating area for enjoying the warmth. A stack of neatly chopped firewood is arranged next to the stove, ready for use, emphasizing the cabin's rustic functionality. "
+    }
+  },
+  "context": {
+    "run_id": "a37a82a4-0b39-47e1-acf9-07a65888d5be"
+  }
+}
diff --git a/crates/api_clients/world_labs_client/src/api/requests/_metadata/request_flow_3_firefox/r8_worlds_response.json b/crates/api_clients/world_labs_client/src/api/requests/_metadata/request_flow_3_firefox/r8_worlds_response.json
new file mode 100644
index 0000000000..8ef012b79e
--- /dev/null
+++ b/crates/api_clients/world_labs_client/src/api/requests/_metadata/request_flow_3_firefox/r8_worlds_response.json
@@ -0,0 +1,37 @@
+{
+  "context": {
+    "run_id": "a37a82a4-0b39-47e1-acf9-07a65888d5be",
+    "project_id": null
+  },
+  "id": "3e8d210f-28ea-4375-92d8-3ee6f14db61d",
+  "display_name": null,
+  "status": "INITIALIZING",
+  "error": null,
+  "owner_id": "sVgAQDyH3BfYOBfF6epWTjLHygX2",
+  "created_at": 1765325564,
+  "updated_at": 1765325564,
+  "permission": {
+    "public": true,
+    "allowed_readers": [],
+    "allowed_writers": []
+  },
+  "stats": null,
+  "application_data": null,
+  "generation_input": {
+    "model": "Marble 0.1-plus",
+    "seed": null,
+    "prompt": {
+      "type": "image",
+      "text_prompt": "The scene is a cozy A-frame cabin interior, rendered in a realistic style, exuding warmth and rustic charm, creating a tranquil and inviting atmosphere. A prominent wooden A-frame structure defines the architecture, featuring angled timber beams that converge towards the peak of the ceiling. The walls and ceiling are paneled with warm-toned wooden planks, creating a consistent and enveloping aesthetic throughout the space. A large, floor-to-ceiling window dominates one wall, offering an expansive view of a lush forest with tall trees and autumnal foliage outside, suggesting the cabin is nestled deep within nature. A plush bed occupies a significant portion of the floor space, adorned with a dark grey duvet, numerous pillows, and a rust-colored throw blanket, inviting comfort and relaxation. A cream-colored faux fur rug rests on the wooden floor beside the bed, adding texture and a soft landing. A black wood-burning stove with a visible fire provides heat and a focal point for the room, situated near the large window. The floor is made of polished light wood planks. On the other side of the cabin, a continuation of the wooden paneling and A-frame structure mirrors the visible portion, maintaining architectural consistency. Another large window, identical in style and size to the visible one, would likely offer a similar forest view on the opposite side of the cabin, bathing the entire space in natural light filtered through the trees. A small, rustic armchair with a woven texture would be positioned near the stove on the opposite side, providing an additional seating area for enjoying the warmth. A stack of neatly chopped firewood is arranged next to the stove, ready for use, emphasizing the cabin's rustic functionality. ",
+      "image_prompt": {
+        "uri": "https://cdn.marble.worldlabs.ai/3e8d210f-28ea-4375-92d8-3ee6f14db61d/5c5474e3_image_prompt_sanitized.png",
+        "data_base64": null,
+        "extension": "png"
+      },
+      "is_pano": null
+    }
+  },
+  "tags": null,
+  "hq_mesh_export_op_id": null,
+  "generation_output": null
+}
diff --git a/crates/api_clients/world_labs_client/src/api/requests/_metadata/request_flow_3_firefox/r8_worlds_response.txt b/crates/api_clients/world_labs_client/src/api/requests/_metadata/request_flow_3_firefox/r8_worlds_response.txt
deleted file mode 100644
index 0a1051eeae..0000000000
--- a/crates/api_clients/world_labs_client/src/api/requests/_metadata/request_flow_3_firefox/r8_worlds_response.txt
+++ /dev/null
@@ -1 +0,0 @@
-{"context":{"run_id":"a37a82a4-0b39-47e1-acf9-07a65888d5be","project_id":null},"id":"3e8d210f-28ea-4375-92d8-3ee6f14db61d","display_name":null,"status":"INITIALIZING","error":null,"owner_id":"sVgAQDyH3BfYOBfF6epWTjLHygX2","created_at":1765325564,"updated_at":1765325564,"permission":{"public":true,"allowed_readers":[],"allowed_writers":[]},"stats":null,"application_data":null,"generation_input":{"model":"Marble 0.1-plus","seed":null,"prompt":{"type":"image","text_prompt":"The scene is a cozy A-frame cabin interior, rendered in a realistic style, exuding warmth and rustic charm, creating a tranquil and inviting atmosphere. A prominent wooden A-frame structure defines the architecture, featuring angled timber beams that converge towards the peak of the ceiling. The walls and ceiling are paneled with warm-toned wooden planks, creating a consistent and enveloping aesthetic throughout the space. A large, floor-to-ceiling window dominates one wall, offering an expansive view of a lush forest with tall trees and autumnal foliage outside, suggesting the cabin is nestled deep within nature. A plush bed occupies a significant portion of the floor space, adorned with a dark grey duvet, numerous pillows, and a rust-colored throw blanket, inviting comfort and relaxation. A cream-colored faux fur rug rests on the wooden floor beside the bed, adding texture and a soft landing. A black wood-burning stove with a visible fire provides heat and a focal point for the room, situated near the large window. The floor is made of polished light wood planks. On the other side of the cabin, a continuation of the wooden paneling and A-frame structure mirrors the visible portion, maintaining architectural consistency. Another large window, identical in style and size to the visible one, would likely offer a similar forest view on the opposite side of the cabin, bathing the entire space in natural light filtered through the trees. A small, rustic armchair with a woven texture would be positioned near the stove on the opposite side, providing an additional seating area for enjoying the warmth. A stack of neatly chopped firewood is arranged next to the stove, ready for use, emphasizing the cabin's rustic functionality. ","image_prompt":{"uri":"https://cdn.marble.worldlabs.ai/3e8d210f-28ea-4375-92d8-3ee6f14db61d/5c5474e3_image_prompt_sanitized.png","data_base64":null,"extension":"png"},"is_pano":null}},"tags":null,"hq_mesh_export_op_id":null,"generation_output":null}
\ No newline at end of file
diff --git a/crates/api_clients/world_labs_client/src/api/requests/mod.rs b/crates/api_clients/world_labs_client/src/api/requests/mod.rs
index d51e7af04e..8e2bbb2889 100644
--- a/crates/api_clients/world_labs_client/src/api/requests/mod.rs
+++ b/crates/api_clients/world_labs_client/src/api/requests/mod.rs
@@ -1,3 +1,4 @@
 pub mod google_upload;
 pub mod objects;
-pub mod recaption;
\ No newline at end of file
+pub mod recaption;
+pub mod worlds;
\ No newline at end of file
diff --git a/crates/api_clients/world_labs_client/src/api/requests/worlds/create_world.rs b/crates/api_clients/world_labs_client/src/api/requests/worlds/create_world.rs
new file mode 100644
index 0000000000..7de8ca9e19
--- /dev/null
+++ b/crates/api_clients/world_labs_client/src/api/requests/worlds/create_world.rs
@@ -0,0 +1,185 @@
+use crate::api::api_types::object_id::ObjectId;
+use crate::api::api_types::upload_id::UploadId;
+use crate::api::api_types::upload_mime_type::UploadMimeType;
+use crate::api::api_types::world_id::WorldId;
+use crate::api::common::common_header_values::{ORIGIN_VALUE, REFERER_VALUE};
+use crate::api::utils::upload_id_to_image_url::upload_id_to_image_url;
+use crate::credentials::world_labs_bearer_token::WorldLabsBearerToken;
+use crate::credentials::world_labs_cookies::WorldLabsCookies;
+use crate::error::world_labs_client_error::WorldLabsClientError;
+use crate::error::world_labs_error::WorldLabsError;
+use crate::error::world_labs_generic_api_error::WorldLabsGenericApiError;
+use http_headers::names::{PRIORITY, SEC_FETCH_DEST, SEC_FETCH_MODE, SEC_FETCH_SITE, SEC_GPC};
+use http_headers::values::accept::ACCEPT_ALL;
+use http_headers::values::cache_control::CACHE_CONTROL_NO_CACHE;
+use http_headers::values::connection::CONNECTION_KEEP_ALIVE;
+use http_headers::values::content_type::CONTENT_TYPE_APPLICATION_JSON;
+use http_headers::values::pragma::PRAGMA_NO_CACHE;
+use http_headers::values::priority::PRIORITY_4;
+use http_headers::values::sec::{SEC_FETCH_DEST_EMPTY, SEC_FETCH_MODE_CORS, SEC_FETCH_SITE_CROSS_SITE};
+use http_headers::values::te::TE_TRAILERS;
+use log::{debug, error};
+use serde::{Deserialize, Serialize};
+use std::time::Duration;
+use wreq::header::{ACCEPT, ACCEPT_ENCODING, ACCEPT_LANGUAGE, AUTHORIZATION, CACHE_CONTROL, CONNECTION, CONTENT_TYPE, ORIGIN, PRAGMA, REFERER, TE};
+use wreq::Client;
+use wreq_util::Emulation;
+
+const URL : &str = "https://marble2-kgw-prod-iac1.wlt-ai.art/api/v1/worlds";
+
+pub struct CreateWorldArgs<'a> {
+  pub cookies: &'a WorldLabsCookies,
+  pub bearer_token: &'a WorldLabsBearerToken,
+  pub upload_id: &'a UploadId,
+  pub upload_mime_type: UploadMimeType,
+  pub run_id: &'a ObjectId,
+  pub text_prompt: &'a str,
+  pub request_timeout: Option<Duration>,
+}
+
+pub struct CreateWorldResponse {
+  pub world_id: WorldId,
+}
+
+/// Marble Image-to-World
+/// This request starts world generation
+/// Request #7 (of ~10)
+pub async fn create_world(args: CreateWorldArgs<'_>) -> Result<CreateWorldResponse, WorldLabsError> {
+  let client = Client::builder()
+      .emulation(Emulation::Firefox143)
+      .build()
+      .map_err(|err| WorldLabsClientError::WreqClientError(err))?;
+
+  debug!("Requesting URL: {}", URL);
+
+  let mut request_builder = client.post(URL)
+      .header(ACCEPT, ACCEPT_ALL)
+      .header(ACCEPT_LANGUAGE, "en-US,en;q=0.5")
+      .header(ACCEPT_ENCODING, "gzip, deflate, br, zstd")
+      .header(REFERER, REFERER_VALUE)
+      .header(CONTENT_TYPE, CONTENT_TYPE_APPLICATION_JSON)
+      .header(AUTHORIZATION, args.bearer_token.to_bearer_token_string())
+      .header(ORIGIN, ORIGIN_VALUE)
+      .header(SEC_GPC, "1")
+      .header(CONNECTION, CONNECTION_KEEP_ALIVE)
+      .header(SEC_FETCH_DEST, SEC_FETCH_DEST_EMPTY)
+      .header(SEC_FETCH_MODE, SEC_FETCH_MODE_CORS)
+      .header(SEC_FETCH_SITE, SEC_FETCH_SITE_CROSS_SITE)
+      .header(PRIORITY, PRIORITY_4)
+      .header(PRAGMA, PRAGMA_NO_CACHE)
+      .header(CACHE_CONTROL, CACHE_CONTROL_NO_CACHE)
+      .header(TE, TE_TRAILERS);
+
+  if let Some(timeout) = args.request_timeout {
+    request_builder = request_builder.timeout(timeout);
+  }
+
+  let request_payload = RawRequest::for_image_and_run(args.upload_id, args.upload_mime_type, args.run_id, args.text_prompt);
+
+  let http_request = request_builder.json(&request_payload)
+      .build()
+      .map_err(|err| {
+        error!("Error building request: {:?}", err);
+        WorldLabsClientError::WreqClientError(err)
+      })?;
+
+  let response = client.execute(http_request)
+      .await
+      .map_err(|err| {
+        error!("Error during request execution: {:?}", err);
+        WorldLabsGenericApiError::WreqError(err)
+      })?;
+
+  let status = response.status();
+
+  let response_body = response.text()
+      .await
+      .map_err(|err| {
+        error!("Error reading response body: {:?}", err);
+        WorldLabsGenericApiError::WreqError(err)
+      })?;
+
+  // TODO: Handle errors (Cloudflare, Grok, etc.)
+  if !status.is_success() {
+    error!("Request returned an error (code {}) : {:?}", status.as_u16(), response_body);
+    //return Err(classify_general_http_status_code_and_body(status, response_body));
+    return Err(WorldLabsGenericApiError::UncategorizedBadResponseWithStatusAndBody { status_code: status, body: response_body}.into())
+  }
+
+  debug!("Response body (200): {}", response_body);
+
+  let response : RawResponse = serde_json::from_str(&response_body)
+      .map_err(|err| WorldLabsGenericApiError::SerdeResponseParseErrorWithBody(err, response_body.to_string()))?;
+
+  Ok(CreateWorldResponse {
+    world_id: WorldId(response.id),
+  })
+}
+
+#[derive(Serialize)]
+struct RawRequest {
+  pub permission: Permission,
+  pub generation_input: GenerationInput,
+  pub context: Context,
+}
+
+#[derive(Serialize)]
+struct Permission {
+  pub public: bool,
+}
+
+#[derive(Serialize)]
+struct GenerationInput {
+  pub model: String,
+  pub prompt: Prompt,
+}
+
+#[derive(Serialize)]
+struct Prompt {
+  pub r#type: String,
+  pub image_prompt: ImagePrompt,
+  pub text_prompt: String,
+}
+
+#[derive(Serialize)]
+struct ImagePrompt {
+  pub uri: String,
+}
+
+#[derive(Serialize)]
+struct Context {
+  pub run_id: String,
+}
+
+impl RawRequest {
+  pub fn for_image_and_run(image_upload_id: &UploadId, image_mime_type: UploadMimeType, run_id: &ObjectId, text_prompt: &str) -> Self {
+    let image_url = upload_id_to_image_url(image_upload_id, image_mime_type);
+    Self {
+      permission: Permission {
+        public: true,
+      },
+      generation_input: GenerationInput {
+        model: "Marble 0.1-plus".to_string(),
+        prompt: Prompt {
+          r#type: "image".to_string(),
+          image_prompt: ImagePrompt {
+            uri: image_url,
+          },
+          text_prompt: text_prompt.to_string(),
+        },
+      },
+      context: Context {
+        run_id: run_id.0.clone(),
+      }
+    }
+  }
+}
+
+#[derive(Deserialize)]
+struct RawResponse {
+  pub id: String,
+}
+
+#[cfg(test)]
+mod tests {
+}
diff --git a/crates/api_clients/world_labs_client/src/api/requests/worlds/mod.rs b/crates/api_clients/world_labs_client/src/api/requests/worlds/mod.rs
new file mode 100644
index 0000000000..5a153a220a
--- /dev/null
+++ b/crates/api_clients/world_labs_client/src/api/requests/worlds/mod.rs
@@ -0,0 +1 @@
+pub mod create_world;
\ No newline at end of file