StockCake

Generate Image

generate_image

Generate a new image from a prompt with one of StockCake's AI models (list_models). Charges credits; free credits work with every model. Waits up to 20 s, then returns a job_id for get_job. Re-sending identical arguments within 2 hours returns the same job (reused: true) instead of charging again. Optional reference images guide the composition (the number allowed depends on your plan). Requires a free StockCake account (the host will prompt to sign in).

Input Schema

Name	Required	Description
`tier`	No	Tier key from list_models (e.g. 1k, 2k, standard). Default: the model's default tier.
`model`	No	Model id from list_models. Default: the site default model (GPT Image 2.6 Standard).
`prompt`	Yes
`context`	Yes	In one sentence, what is the user trying to make or find?
`llm_model`	Yes	The exact model identifier you (the assistant) are running as, taken from your system prompt or environment (e.g. "claude-opus-4-8", "gpt-5.2"). Used for analytics only. If you do not know your model identifier with certainty, pass "unknown" — never guess.
`aspect_ratio`	No
`conversation_id`	No	Pass the exact conversation_id from the server's previous response, unchanged. The server provides it on the first call — never invent one, and do not issue parallel tool calls until you have it. Keep passing the same conversation_id for the rest of the conversation, including after later user messages or on a different task; do not reset it when the user starts a new request.
`reference_images`	No	Stock image ids or your own edited image ids used as references

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedNov 8, 2026

changedInput schema / properties / model / description

Previous value: -"Model id from list_models. Default: the site default model for subscribers, a low-cost model otherwise."New value: +"Model id from list_models. Default: the site default model (GPT Image 2.6 Standard)."

Changed1 schema field changedNov 2, 2026

changedOutput schema / anyOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "credits_charged": {
-        "type": "number"
-      },
-      "image": {
-        "additionalProperties": false,
-        "properties": {
-          "dimensions": {
-            "anyOf": [
-              {
-                "additionalProperties": false,
-                "properties": {
-                  "height": {
-                    "type": "number"
-                  },
-                  "width": {
-                    "type": "number"
-                  }
-                },
-                "required": [
-                  "width",
-                  "height"
-                ],
-                "type": "object"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Output pixel size; null when the file could not be probed"
-          },
-          "id": {
-            "description": "Edited image id — pass it to get_image (preview), download_image, or as an image reference",
-            "type": [
-              "number",
-              "null"
-            ]
-          },
-          "url": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "id",
-          "url",
-          "dimensions"
-        ],
-        "type": "object"
-      },
-      "job_id": {
-        "type": "string"
-      },
-      "status": {
-        "const": "completed",
-        "type": "string"
-      }
-    },
-    "required": [
-      "job_id",
-      "status",
-      "image",
-      "credits_charged"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "credits_charged": {
-        "type": "number"
-      },
-      "job_id": {
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "status": {
-        "const": "pending",
-        "type": "string"
-      }
-    },
-    "required": [
-      "job_id",
-      "status",
-      "credits_charged",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": {},
-    "properties": {
-      "code": {
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "code",
-      "message"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "credits_charged": {
+        "type": "number"
+      },
+      "image": {
+        "additionalProperties": false,
+        "properties": {
+          "dimensions": {
+            "anyOf": [
+              {
+                "additionalProperties": false,
+                "properties": {
+                  "height": {
+                    "type": "number"
+                  },
+                  "width": {
+                    "type": "number"
+                  }
+                },
+                "required": [
+                  "width",
+                  "height"
+                ],
+                "type": "object"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Output pixel size; null when the file could not be probed"
+          },
+          "id": {
+            "description": "Edited image id — pass it to get_image (preview), download_image, or as an image reference",
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "url",
+          "dimensions"
+        ],
+        "type": "object"
+      },
+      "job_id": {
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "reused": {
+        "const": true,
+        "type": "boolean"
+      },
+      "status": {
+        "const": "completed",
+        "type": "string"
+      }
+    },
+    "required": [
+      "job_id",
+      "status",
+      "image",
+      "credits_charged"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "credits_charged": {
+        "type": "number"
+      },
+      "job_id": {
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "reused": {
+        "const": true,
+        "type": "boolean"
+      },
+      "status": {
+        "const": "pending",
+        "type": "string"
+      }
+    },
+    "required": [
+      "job_id",
+      "status",
+      "credits_charged",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": {},
+    "properties": {
+      "code": {
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "code",
+      "message"
+    ],
+    "type": "object"
+  }
+]

Changed1 schema field changedOct 30, 2026

changedInput schema / properties / model / description

Previous value: -"Model id from list_models. Default: the site default for subscribers, the free model otherwise."New value: +"Model id from list_models. Default: the site default model for subscribers, a low-cost model otherwise."

Changed1 schema field changedOct 10, 2026

changedOutput schema / anyOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "credits_charged": {
-        "type": "number"
-      },
-      "image": {
-        "additionalProperties": false,
-        "properties": {
-          "id": {
-            "description": "Edited image id — pass it to download_image or as an image reference",
-            "type": [
-              "number",
-              "null"
-            ]
-          },
-          "url": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "id",
-          "url"
-        ],
-        "type": "object"
-      },
-      "job_id": {
-        "type": "string"
-      },
-      "status": {
-        "const": "completed",
-        "type": "string"
-      }
-    },
-    "required": [
-      "job_id",
-      "status",
-      "image",
-      "credits_charged"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "credits_charged": {
-        "type": "number"
-      },
-      "job_id": {
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "status": {
-        "const": "pending",
-        "type": "string"
-      }
-    },
-    "required": [
-      "job_id",
-      "status",
-      "credits_charged",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": {},
-    "properties": {
-      "code": {
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "code",
-      "message"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "credits_charged": {
+        "type": "number"
+      },
+      "image": {
+        "additionalProperties": false,
+        "properties": {
+          "dimensions": {
+            "anyOf": [
+              {
+                "additionalProperties": false,
+                "properties": {
+                  "height": {
+                    "type": "number"
+                  },
+                  "width": {
+                    "type": "number"
+                  }
+                },
+                "required": [
+                  "width",
+                  "height"
+                ],
+                "type": "object"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Output pixel size; null when the file could not be probed"
+          },
+          "id": {
+            "description": "Edited image id — pass it to get_image (preview), download_image, or as an image reference",
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "url",
+          "dimensions"
+        ],
+        "type": "object"
+      },
+      "job_id": {
+        "type": "string"
+      },
+      "status": {
+        "const": "completed",
+        "type": "string"
+      }
+    },
+    "required": [
+      "job_id",
+      "status",
+      "image",
+      "credits_charged"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "credits_charged": {
+        "type": "number"
+      },
+      "job_id": {
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "status": {
+        "const": "pending",
+        "type": "string"
+      }
+    },
+    "required": [
+      "job_id",
+      "status",
+      "credits_charged",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": {},
+    "properties": {
+      "code": {
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "code",
+      "message"
+    ],
+    "type": "object"
+  }
+]

First observedSep 28, 2026

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