HubSpot MCP Server

import { z } from 'zod'; import { zodToJsonSchema } from 'zod-to-json-schema'; import { BaseTool } from '../baseTool.js'; import HubSpotClient from '../../utils/client.js'; const SchemaInfoSchema = z.object({}); const ToolDefinition = { name: 'hubspot-get-schemas', description: ` 🎯 Purpose: 1. Retrieves all custom object schemas defined in the HubSpot account. 🧭 Usage Guidance: 1. Before working with custom objects to understand available object types, their properties, and associations. 📦 Returns: 1. Provides the objectTypeId and objectType for each schema. 2. These attributes should be used for this object type instead of "custom" in subsequent requests. `, inputSchema: zodToJsonSchema(SchemaInfoSchema), annotations: { title: 'Get Object Schemas', readOnlyHint: true, destructiveHint: false, idempotentHint: true, openWorldHint: true, }, }; export class GetSchemasTool extends BaseTool { client; constructor() { super(SchemaInfoSchema, ToolDefinition); this.client = new HubSpotClient(); } async process(_args) { try { const schemas = await this.client.get('/crm-object-schemas/v3/schemas'); const simplifiedResults = schemas.results.map((schema) => ({ objectTypeId: schema.objectTypeId, objectType: schema.fullyQualifiedName.split('_')[1], name: schema.name, labels: schema.labels, })); return { content: [ { type: 'text', text: 'Custom object schemas found. Note: These attributes should be used instead of "custom" in subsequent requests:', }, { type: 'text', text: JSON.stringify({ results: simplifiedResults }, null, 2), }, ], }; } catch (error) { return { content: [ { type: 'text', text: `Error retrieving schemas: ${error instanceof Error ? error.message : String(error)}`, }, ], isError: true, }; } } }