Send interested replies to Zapier or Make with the thread link
When a reply is labeled Interested, a webhook passes the prospect, reply text, campaign and thread link to Zapier or Make, ready for any app they connect to.
Why teams run it
One clean trigger replaces sequencer-specific zaps that each break in their own way.
Set it up in Master Inbox
- In Master Inbox, open Settings, then Workflows, and click Add a workflow.
- Name it Send interested replies to Zapier or Make with the thread link.
- Set the trigger to Add Label and choose Interested.
- Add the action Send a webhook: Send name, email, company, campaign, reply text and thread URL to your Zapier or Make webhook.
- Save the workflow and switch it to Active.
Or create it with the API
Everything in the workflow builder is also in the Master Inbox API. This request creates the same workflow. Replace the example ids with your own label, list and campaign ids from GET /workflows/filter-fields.
curl -X POST https://api.masterinbox.com/api/api-webhook/v1/api/workflows/create-workflow \
-H "Authorization: Bearer $MASTER_INBOX_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"name": "Send interested replies to Zapier or Make with the thread link",
"trigger_type": "add_label",
"trigger_config": {
"label_ids": [
176479
]
},
"action_configs": [
{
"action_type": "webhook",
"webhook_url": "https://hooks.example.com/master-inbox",
"webhook_payload_variables": [
"name",
"email",
"company_name",
"label_names",
"thread_url",
"text"
]
}
]
}'Full reference: workflow API guide and API docs.
Or ask Claude, ChatGPT or Grok to build it
Our workflow guide is written for AI agents to read. Give your assistant your API key and this prompt:
Read https://app.masterinbox.com/public-workflow-api.md and use my Master Inbox API key to create this workflow: "Send interested replies to Zapier or Make with the thread link". First call GET /workflows/filter-fields and look up my label, list and channel ids, then create the workflow and tell me what you set up.Questions
Should I keep my Slack and CRM zaps?
Move them to native Slack, HubSpot and sequencer actions where they exist, and keep Zapier for the rest.
Does it fire for every sequencer?
Yes. Labels apply the same way to Instantly, Smartlead, EmailBison, HeyReach and others.
Can I build this workflow through the API?
Yes. Send the create-workflow request shown on this page with your Master Inbox API key. The API checks the payload first and lists every problem by field if anything is off.
Which plan includes this?
This workflow works on the Team plan. Every plan has unlimited users and starts with a free 7-day POC.
Learn more
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Run this on your own inboxes
Free 7-day POC. Unlimited users on every plan.
