Tanod Images

imagepeek: extract an image's dominant colours

image_colors

Read-onlyIdempotent

imagepeek: Extract the dominant colours of an image. Returns an image's palette of k colours (hex, rgb, share), the dominant one and the average colour with its luminance, from a 200 px sample (median cut refined by k-means; transparent pixels ignored). Input: url or image_base64, optional k and auto_orient. Reads PNG, JPEG, WebP, GIF, TIFF, BMP, ICO and AVIF; other formats and images over 40 megapixels are refused (not charged). Images are never logged or stored. Typically 0.5-2 s. Price: USD 0.002. Free: 3 imagepeek calls per IP per UTC day.

Input Schema

TableJSON Schema

Name	Required	Description
`k`	No	Palette size (1-10, default 5).
`url`	No	Public http(s) URL of the image (at most 10 MB; private, internal and IP-literal hosts are refused); or use image_base64.
`auto_orient`	No	Apply the EXIF orientation first (default true).
`image_base64`	No	The image as standard or url-safe base64 (at most 10 MB decoded; a data:image/...;base64, prefix is fine); or use url.

Output Schema

TableJSON Schema

Name	Required	Description
`error`	No	Only on an error result: an object {code, message}, or the reason string of an x402 PaymentRequired object.
`input`	No
`notes`	No
`source`	No
`average`	No
`palette`	No
`dominant`	No
`final_url`	No
`operation`	No
`source_url`	No
`pixels_sampled`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed3 schema fields changedOct 8, 2026

addedInput schema / properties / auto_orient / description

Added value: +"Apply the EXIF orientation first (default true)."

changedInput schema / properties / url / description

Previous value: -"Public http(s) URL of the image (at most 10 MB); or use image_base64."New value: +"Public http(s) URL of the image (at most 10 MB; private, internal and IP-literal hosts are refused); or use image_base64."

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "average": {
+      "properties": {
+        "hex": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "luminance": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "rgb": {
+          "items": {
+            "type": [
+              "integer",
+              "null"
+            ]
+          },
+          "type": [
+            "array",
+            "null"
+          ]
+        },
+        "share": {
+          "type": [
+            "number",
+            "null"
+          ]
+        }
+      },
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "dominant": {
+      "properties": {
+        "hex": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "luminance": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "rgb": {
+          "items": {
+            "type": [
+              "integer",
+              "null"
+            ]
+          },
+          "type": [
+            "array",
+            "null"
+          ]
+        },
+        "share": {
+          "type": [
+            "number",
+            "null"
+          ]
+        }
+      },
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "error": {
+      "description": "Only on an error result: an object {code, message}, or the reason string of an x402 PaymentRequired object."
+    },
+    "final_url": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "input": {
+      "properties": {
+        "animated": {
+          "type": [
+            "boolean",
+            "null"
+          ]
+        },
+        "bytes": {
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
+        "format": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "frames": {
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
+        "has_alpha": {
+          "type": [
+            "boolean",
+            "null"
+          ]
+        },
+        "height": {
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
+        "width": {
+          "type": [
+            "integer",
+            "null"
+          ]
+        }
+      },
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "notes": {
+      "items": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "type": [
+        "array",
+        "null"
+      ]
+    },
+    "operation": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "palette": {
+      "items": {
+        "properties": {
+          "hex": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "luminance": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "rgb": {
+            "items": {
+              "type": [
+                "integer",
+                "null"
+              ]
+            },
+            "type": [
+              "array",
+              "null"
+            ]
+          },
+          "share": {
+            "type": [
+              "number",
+              "null"
+            ]
+          }
+        },
+        "type": [
+          "object",
+          "null"
+        ]
+      },
+      "type": [
+        "array",
+        "null"
+      ]
+    },
+    "pixels_sampled": {
+      "type": [
+        "integer",
+        "null"
+      ]
+    },
+    "source": {
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "source_url": {
+      "type": [
+        "string",
+        "null"
+      ]
+    }
+  },
+  "type": "object"
+}

First observedOct 8, 2026

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