Demo showing how to enrich new user signups from a Hubspot Form.

The data passes from Hubspot form -> Hubspot webhook (new contact creation) -> Clay for enrichment -> send notifications to Slack.

• slack.ts - Send Slack notification
• test.ts - Test script to simulate new user sign up
• webhook.ts - Receives webhooks when you get a new user

As of Aug 2025, Apps on Hubspot's new developer platform need to be done via the CLI

1. Install the HubSpot CLI with these instructions
   • Here were the steps that worked for me:
     • npm install -g @hubspot/cli@latest
     • hs account auth
     • hs project create for an App, with Private distribution, Static Auth and Webhooks
2. In your new src/app directory, add webhooks/webhook-hsmeta.json with the following config. Note: Swap out the targetUrl with your Val Town HTTP endpoint URl from ./webhook.ts.

{
  "uid": "webhooks",
  "type": "webhooks",
  "config": {
    "settings": {
      "targetUrl": "https://charmaine--0199720fd819701cb2e80be3c8cff217.web.val.run",
      "maxConcurrentRequests": 10
    },
    "subscriptions": {
      "crmObjects": [
        {
          "subscriptionType": "object.propertyChange",
          "objectType": "contact",
          "propertyName": "email",
          "active": true
        }
      ]
    }
  }
}

1. Remix this val
2. Get a Slack webhook & set it as SLACK_WEBHOOK_URL in this val's Environment variables in the left sidebar
3. Get a random token & set it to VAL_WEBHOOK_SECRET in this val's Environment variables in the left sidebar
4. Click run on test.ts to see the complete flow (takes up to 5 minutes to enrich)
5. Check your Slack channel for the enriched user notification
6. Set your auth system (ie Clerk) to send new user webhooks to webhook.ts

Clay is a user-enrichment tool that allows you to leverage the data of hundreds of enrichment services.

We at Val Town have set up a basic Clay enrichment table that finds basic user info from email address or github username – and have created a synthetic API to it, which this val calls. Clay costs money, so proxy is only available to paid Val Town Teams accounts.