SEO GSC Wizard MCP

Set the IndexNow API key

update_indexnow_settings

Destructive

Sets, generates, rotates or clears the IndexNow API key for a property. The key is what search engines use to verify submissions from submit_indexnow_urls. To set IndexNow up, pass generateKey: true: a valid key is created and returned with keyFileUrl and keyFileContent. IMPORTANT: the site owner must then publish keyFileContent as a plain-text file at keyFileUrl (at the root of every host whose URLs will be submitted), or every submission is discarded. generateKey refuses to replace an existing key; to rotate, pass clear: true first. You can also pass your own indexnowApiKey (8-128 letters, digits and hyphens), for example one whose key file the site already publishes: the file is checked right after saving and keyFileVerified reports the result (true = ready to submit). Pass clear: true to remove the key, which disables IndexNow submissions for the property. Reading the key back later (get_indexnow_settings) only ever returns it masked.

Input Schema

TableJSON Schema

Name	Required	Description
`clear`	No	Remove the stored key instead of setting one. Disables IndexNow submissions.
`siteUrl`	Yes
`generateKey`	No	Create a new valid key and return the key file to publish. Only when the property has no key yet; clear the old key first to rotate.
`indexnowApiKey`	No	The new key. Omit when using generateKey or clear.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`cleared`	No
`siteUrl`	No
`nextStep`	No
`generated`	No
`keyFileUrl`	No
`keyFileUrls`	No
`keyFileError`	No
`keyFileContent`	No
`keyFileVerified`	No
`indexnowApiKeySet`	No
`indexnowApiKeyMasked`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed8 schema fields changedOct 10, 2026

addedInput schema / properties / generateKey

Added value: +{
+  "default": false,
+  "description": "Create a new valid key and return the key file to publish. Only when the property has no key yet; clear the old key first to rotate.",
+  "type": "boolean"
+}

changedInput schema / properties / indexnowApiKey / description

Previous value: -"The new key. Omit together with clear: true to remove the current key."New value: +"The new key. Omit when using generateKey or clear."

addedOutput schema / properties / generated

Added value: +{
+  "$ref": "#/properties/indexnowApiKeySet"
+}

addedOutput schema / properties / keyFileContent

Added value: +{
+  "$ref": "#/properties/siteUrl"
+}

addedOutput schema / properties / keyFileError

Added value: +{
+  "$ref": "#/properties/siteUrl"
+}

addedOutput schema / properties / keyFileUrl

Added value: +{
+  "$ref": "#/properties/siteUrl"
+}

addedOutput schema / properties / keyFileUrls

Added value: +{
+  "anyOf": [
+    {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / keyFileVerified

Added value: +{
+  "$ref": "#/properties/indexnowApiKeySet"
+}

First observedOct 7, 2026

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