Add webhook subscription MCP tools and N8N operations

Expose webhook subscription CRUD and event listing through the MCP API
(list, get, create, update, delete subscriptions + list events) and add
a new webhook resource to the N8N node with matching operations.

Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>

packages/n8n-node/nodes/Probo/Probo.node.ts

@@ -146,6 +146,11 @@ export class Probo implements INodeType {
 						value: 'vendor',
 						description: 'Manage vendors',
 					},
+					{
+						name: 'Webhook',
+						value: 'webhook',
+						description: 'Manage webhook subscriptions',
+					},
 				],
 				default: 'execute',
 			},

packages/n8n-node/nodes/Probo/actions/index.ts

@@ -27,6 +27,7 @@ import * as user from './user';
 import * as risk from './risk';
 import * as statementOfApplicability from './statementOfApplicability';
 import * as vendor from './vendor';
+import * as webhook from './webhook';
 
 export interface ResourceModule {
 	description: INodeProperties[];
@@ -53,6 +54,7 @@ export const resources: Record<string, ResourceModule> = {
 	risk: risk as ResourceModule,
 	statementOfApplicability: statementOfApplicability as ResourceModule,
 	vendor: vendor as ResourceModule,
+	webhook: webhook as ResourceModule,
 };
 
 export function getAllResourceOperations(): INodeProperties[] {

packages/n8n-node/nodes/Probo/actions/webhook/create.operation.ts

@@ -0,0 +1,114 @@
+// Copyright (c) 2025-2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+import type { INodeProperties, IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
+import { proboApiRequest } from '../../GenericFunctions';
+
+export const description: INodeProperties[] = [
+	{
+		displayName: 'Organization ID',
+		name: 'organizationId',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['create'],
+			},
+		},
+		default: '',
+		description: 'The ID of the organization',
+		required: true,
+	},
+	{
+		displayName: 'Endpoint URL',
+		name: 'endpointUrl',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['create'],
+			},
+		},
+		default: '',
+		description: 'The HTTPS endpoint URL that receives webhook events',
+		required: true,
+	},
+	{
+		displayName: 'Selected Events',
+		name: 'selectedEvents',
+		type: 'multiOptions',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['create'],
+			},
+		},
+		options: [
+			{ name: 'Meeting Created', value: 'MEETING_CREATED' },
+			{ name: 'Meeting Deleted', value: 'MEETING_DELETED' },
+			{ name: 'Meeting Updated', value: 'MEETING_UPDATED' },
+			{ name: 'Obligation Created', value: 'OBLIGATION_CREATED' },
+			{ name: 'Obligation Deleted', value: 'OBLIGATION_DELETED' },
+			{ name: 'Obligation Updated', value: 'OBLIGATION_UPDATED' },
+			{ name: 'User Created', value: 'USER_CREATED' },
+			{ name: 'User Deleted', value: 'USER_DELETED' },
+			{ name: 'User Updated', value: 'USER_UPDATED' },
+			{ name: 'Vendor Created', value: 'VENDOR_CREATED' },
+			{ name: 'Vendor Deleted', value: 'VENDOR_DELETED' },
+			{ name: 'Vendor Updated', value: 'VENDOR_UPDATED' },
+		],
+		default: [],
+		description: 'The event types to subscribe to',
+		required: true,
+	},
+];
+
+export async function execute(
+	this: IExecuteFunctions,
+	itemIndex: number,
+): Promise<INodeExecutionData> {
+	const organizationId = this.getNodeParameter('organizationId', itemIndex) as string;
+	const endpointUrl = this.getNodeParameter('endpointUrl', itemIndex) as string;
+	const selectedEvents = this.getNodeParameter('selectedEvents', itemIndex) as string[];
+
+	const query = `
+		mutation CreateWebhookSubscription($input: CreateWebhookSubscriptionInput!) {
+			createWebhookSubscription(input: $input) {
+				webhookSubscriptionEdge {
+					node {
+						id
+						endpointUrl
+						signingSecret
+						selectedEvents
+						createdAt
+						updatedAt
+					}
+				}
+			}
+		}
+	`;
+
+	const responseData = await proboApiRequest.call(this, query, {
+		input: {
+			organizationId,
+			endpointUrl,
+			selectedEvents,
+		},
+	});
+
+	return {
+		json: responseData,
+		pairedItem: { item: itemIndex },
+	};
+}

packages/n8n-node/nodes/Probo/actions/webhook/delete.operation.ts

@@ -0,0 +1,57 @@
+// Copyright (c) 2025-2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+import type { INodeProperties, IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
+import { proboApiRequest } from '../../GenericFunctions';
+
+export const description: INodeProperties[] = [
+	{
+		displayName: 'Webhook Subscription ID',
+		name: 'webhookSubscriptionId',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['delete'],
+			},
+		},
+		default: '',
+		description: 'The ID of the webhook subscription to delete',
+		required: true,
+	},
+];
+
+export async function execute(
+	this: IExecuteFunctions,
+	itemIndex: number,
+): Promise<INodeExecutionData> {
+	const webhookSubscriptionId = this.getNodeParameter('webhookSubscriptionId', itemIndex) as string;
+
+	const query = `
+		mutation DeleteWebhookSubscription($input: DeleteWebhookSubscriptionInput!) {
+			deleteWebhookSubscription(input: $input) {
+				deletedWebhookSubscriptionId
+			}
+		}
+	`;
+
+	const responseData = await proboApiRequest.call(this, query, {
+		input: { webhookSubscriptionId },
+	});
+
+	return {
+		json: responseData,
+		pairedItem: { item: itemIndex },
+	};
+}

packages/n8n-node/nodes/Probo/actions/webhook/get.operation.ts

@@ -0,0 +1,61 @@
+// Copyright (c) 2025-2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+import type { INodeProperties, IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
+import { proboApiRequest } from '../../GenericFunctions';
+
+export const description: INodeProperties[] = [
+	{
+		displayName: 'Webhook Subscription ID',
+		name: 'webhookSubscriptionId',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['get'],
+			},
+		},
+		default: '',
+		description: 'The ID of the webhook subscription',
+		required: true,
+	},
+];
+
+export async function execute(
+	this: IExecuteFunctions,
+	itemIndex: number,
+): Promise<INodeExecutionData> {
+	const webhookSubscriptionId = this.getNodeParameter('webhookSubscriptionId', itemIndex) as string;
+
+	const query = `
+		query GetWebhookSubscription($webhookSubscriptionId: ID!) {
+			node(id: $webhookSubscriptionId) {
+				... on WebhookSubscription {
+					id
+					endpointUrl
+					selectedEvents
+					createdAt
+					updatedAt
+				}
+			}
+		}
+	`;
+
+	const responseData = await proboApiRequest.call(this, query, { webhookSubscriptionId });
+
+	return {
+		json: responseData,
+		pairedItem: { item: itemIndex },
+	};
+}

packages/n8n-node/nodes/Probo/actions/webhook/getAll.operation.ts

@@ -0,0 +1,114 @@
+// Copyright (c) 2025-2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+import type { INodeProperties, IExecuteFunctions, INodeExecutionData, IDataObject } from 'n8n-workflow';
+import { proboApiRequestAllItems } from '../../GenericFunctions';
+
+export const description: INodeProperties[] = [
+	{
+		displayName: 'Organization ID',
+		name: 'organizationId',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['getAll'],
+			},
+		},
+		default: '',
+		description: 'The ID of the organization',
+		required: true,
+	},
+	{
+		displayName: 'Return All',
+		name: 'returnAll',
+		type: 'boolean',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['getAll'],
+			},
+		},
+		default: false,
+		description: 'Whether to return all results or only up to a given limit',
+	},
+	{
+		displayName: 'Limit',
+		name: 'limit',
+		type: 'number',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['getAll'],
+				returnAll: [false],
+			},
+		},
+		typeOptions: {
+			minValue: 1,
+		},
+		default: 50,
+		description: 'Max number of results to return',
+	},
+];
+
+export async function execute(
+	this: IExecuteFunctions,
+	itemIndex: number,
+): Promise<INodeExecutionData> {
+	const organizationId = this.getNodeParameter('organizationId', itemIndex) as string;
+	const returnAll = this.getNodeParameter('returnAll', itemIndex) as boolean;
+	const limit = this.getNodeParameter('limit', itemIndex, 50) as number;
+
+	const query = `
+		query GetWebhookSubscriptions($organizationId: ID!, $first: Int, $after: CursorKey) {
+			node(id: $organizationId) {
+				... on Organization {
+					webhookSubscriptions(first: $first, after: $after) {
+						edges {
+							node {
+								id
+								endpointUrl
+								selectedEvents
+								createdAt
+								updatedAt
+							}
+						}
+						pageInfo {
+							hasNextPage
+							endCursor
+						}
+					}
+				}
+			}
+		}
+	`;
+
+	const webhookSubscriptions = await proboApiRequestAllItems.call(
+		this,
+		query,
+		{ organizationId },
+		(response) => {
+			const data = response?.data as IDataObject | undefined;
+			const node = data?.node as IDataObject | undefined;
+			return node?.webhookSubscriptions as IDataObject | undefined;
+		},
+		returnAll,
+		limit,
+	);
+
+	return {
+		json: { webhookSubscriptions },
+		pairedItem: { item: itemIndex },
+	};
+}

packages/n8n-node/nodes/Probo/actions/webhook/getEvents.operation.ts

@@ -0,0 +1,114 @@
+// Copyright (c) 2025-2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+import type { INodeProperties, IExecuteFunctions, INodeExecutionData, IDataObject } from 'n8n-workflow';
+import { proboApiRequestAllItems } from '../../GenericFunctions';
+
+export const description: INodeProperties[] = [
+	{
+		displayName: 'Webhook Subscription ID',
+		name: 'webhookSubscriptionId',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['getEvents'],
+			},
+		},
+		default: '',
+		description: 'The ID of the webhook subscription',
+		required: true,
+	},
+	{
+		displayName: 'Return All',
+		name: 'returnAll',
+		type: 'boolean',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['getEvents'],
+			},
+		},
+		default: false,
+		description: 'Whether to return all results or only up to a given limit',
+	},
+	{
+		displayName: 'Limit',
+		name: 'limit',
+		type: 'number',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['getEvents'],
+				returnAll: [false],
+			},
+		},
+		typeOptions: {
+			minValue: 1,
+		},
+		default: 50,
+		description: 'Max number of results to return',
+	},
+];
+
+export async function execute(
+	this: IExecuteFunctions,
+	itemIndex: number,
+): Promise<INodeExecutionData> {
+	const webhookSubscriptionId = this.getNodeParameter('webhookSubscriptionId', itemIndex) as string;
+	const returnAll = this.getNodeParameter('returnAll', itemIndex) as boolean;
+	const limit = this.getNodeParameter('limit', itemIndex, 50) as number;
+
+	const query = `
+		query GetWebhookEvents($webhookSubscriptionId: ID!, $first: Int, $after: CursorKey) {
+			node(id: $webhookSubscriptionId) {
+				... on WebhookSubscription {
+					events(first: $first, after: $after) {
+						edges {
+							node {
+								id
+								webhookSubscriptionId
+								status
+								response
+								createdAt
+							}
+						}
+						pageInfo {
+							hasNextPage
+							endCursor
+						}
+					}
+				}
+			}
+		}
+	`;
+
+	const events = await proboApiRequestAllItems.call(
+		this,
+		query,
+		{ webhookSubscriptionId },
+		(response) => {
+			const data = response?.data as IDataObject | undefined;
+			const node = data?.node as IDataObject | undefined;
+			return node?.events as IDataObject | undefined;
+		},
+		returnAll,
+		limit,
+	);
+
+	return {
+		json: { events },
+		pairedItem: { item: itemIndex },
+	};
+}

packages/n8n-node/nodes/Probo/actions/webhook/index.ts

@@ -0,0 +1,82 @@
+// Copyright (c) 2025-2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+import type { INodeProperties } from 'n8n-workflow';
+import * as createOp from './create.operation';
+import * as updateOp from './update.operation';
+import * as deleteOp from './delete.operation';
+import * as getOp from './get.operation';
+import * as getAllOp from './getAll.operation';
+import * as getEventsOp from './getEvents.operation';
+
+export const description: INodeProperties[] = [
+	{
+		displayName: 'Operation',
+		name: 'operation',
+		type: 'options',
+		noDataExpression: true,
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+			},
+		},
+		options: [
+			{
+				name: 'Create',
+				value: 'create',
+				description: 'Create a new webhook subscription',
+				action: 'Create a webhook subscription',
+			},
+			{
+				name: 'Delete',
+				value: 'delete',
+				description: 'Delete a webhook subscription',
+				action: 'Delete a webhook subscription',
+			},
+			{
+				name: 'Get',
+				value: 'get',
+				description: 'Get a webhook subscription',
+				action: 'Get a webhook subscription',
+			},
+			{
+				name: 'Get Events',
+				value: 'getEvents',
+				description: 'Get delivery events for a webhook subscription',
+				action: 'Get webhook delivery events',
+			},
+			{
+				name: 'Get Many',
+				value: 'getAll',
+				description: 'Get many webhook subscriptions',
+				action: 'Get many webhook subscriptions',
+			},
+			{
+				name: 'Update',
+				value: 'update',
+				description: 'Update a webhook subscription',
+				action: 'Update a webhook subscription',
+			},
+		],
+		default: 'create',
+	},
+	...createOp.description,
+	...updateOp.description,
+	...deleteOp.description,
+	...getOp.description,
+	...getAllOp.description,
+	...getEventsOp.description,
+];
+
+export { createOp as create, updateOp as update, deleteOp as delete, getOp as get, getAllOp as getAll, getEventsOp as getEvents };

packages/n8n-node/nodes/Probo/actions/webhook/update.operation.ts

@@ -0,0 +1,107 @@
+// Copyright (c) 2025-2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+import type { INodeProperties, IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
+import { proboApiRequest } from '../../GenericFunctions';
+
+export const description: INodeProperties[] = [
+	{
+		displayName: 'Webhook Subscription ID',
+		name: 'webhookSubscriptionId',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['update'],
+			},
+		},
+		default: '',
+		description: 'The ID of the webhook subscription to update',
+		required: true,
+	},
+	{
+		displayName: 'Endpoint URL',
+		name: 'endpointUrl',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['update'],
+			},
+		},
+		default: '',
+		description: 'The HTTPS endpoint URL that receives webhook events',
+	},
+	{
+		displayName: 'Selected Events',
+		name: 'selectedEvents',
+		type: 'multiOptions',
+		displayOptions: {
+			show: {
+				resource: ['webhook'],
+				operation: ['update'],
+			},
+		},
+		options: [
+			{ name: 'Meeting Created', value: 'MEETING_CREATED' },
+			{ name: 'Meeting Deleted', value: 'MEETING_DELETED' },
+			{ name: 'Meeting Updated', value: 'MEETING_UPDATED' },
+			{ name: 'Obligation Created', value: 'OBLIGATION_CREATED' },
+			{ name: 'Obligation Deleted', value: 'OBLIGATION_DELETED' },
+			{ name: 'Obligation Updated', value: 'OBLIGATION_UPDATED' },
+			{ name: 'User Created', value: 'USER_CREATED' },
+			{ name: 'User Deleted', value: 'USER_DELETED' },
+			{ name: 'User Updated', value: 'USER_UPDATED' },
+			{ name: 'Vendor Created', value: 'VENDOR_CREATED' },
+			{ name: 'Vendor Deleted', value: 'VENDOR_DELETED' },
+			{ name: 'Vendor Updated', value: 'VENDOR_UPDATED' },
+		],
+		default: [],
+		description: 'The event types to subscribe to (replaces existing selection)',
+	},
+];
+
+export async function execute(
+	this: IExecuteFunctions,
+	itemIndex: number,
+): Promise<INodeExecutionData> {
+	const webhookSubscriptionId = this.getNodeParameter('webhookSubscriptionId', itemIndex) as string;
+	const endpointUrl = this.getNodeParameter('endpointUrl', itemIndex, '') as string;
+	const selectedEvents = this.getNodeParameter('selectedEvents', itemIndex, []) as string[];
+
+	const query = `
+		mutation UpdateWebhookSubscription($input: UpdateWebhookSubscriptionInput!) {
+			updateWebhookSubscription(input: $input) {
+				webhookSubscription {
+					id
+					endpointUrl
+					selectedEvents
+					createdAt
+					updatedAt
+				}
+			}
+		}
+	`;
+
+	const input: Record<string, unknown> = { webhookSubscriptionId };
+	if (endpointUrl) input.endpointUrl = endpointUrl;
+	if (selectedEvents !== undefined) input.selectedEvents = selectedEvents;
+
+	const responseData = await proboApiRequest.call(this, query, { input });
+
+	return {
+		json: responseData,
+		pairedItem: { item: itemIndex },
+	};
+}