5.1 Connect External Tools to Push Leads into ReactIn

ReactIn makes it easy to connect your favorite tools — like forms, booking apps, or no-code platforms — so you can send leads directly into your SmartLists without writing code.

Written By Theo Remola

Last updated 11 months ago

✅ Native integrations (no code, no API)

ReactIn offers direct, built-in integrations with several platforms — no webhook or API setup required.

You can connect tools like:

  • Tally (form submissions)

  • Typeform

  • Cal.com (meeting bookings)

  • Brevo (email events)

  • Stripe (trigger based on purchases or billing)

To activate:

  1. Go to Settings > Integrations

  2. Find the app you want to connect

  3. Authorize or paste your key (depending on the app)

  4. Assign the integration to a specific SmartList

🔄 Once connected, leads will be added automatically in real time.

🔗 Other tools via webhooks (Zapier, Make, n8n…)

For tools that don’t have a native integration yet (e.g. Airtable, Notion, CRM platforms), you can still connect them using:

  • Zapier

  • Make

  • Webhooks

  • Or any backend that supports POST and GET requests

These work by sending leads to a SmartList of type ReactIn API.

📘 See how to use the Add Lead API →

🧠 Popular use cases

Tool

Use case example

Tally

Add demo request leads directly into a campaign

Cal.com

Trigger LinkedIn messaging post-meeting

Stripe

Start a reactivation sequence after failed payment

Brevo

Enrich leads who opened but didn’t click your emails

Zapier

Add leads when a CRM deal stage changes

💡 Pro tip: Name your SmartLists after their integration sources for clearer tracking and reporting.

Ready to move on?
👉 Next Step: View and Manage Active Integrations →