Instantly Webhook

Endpoint

Your webhook URL is shown in Settings → Integrations → Webhooks → Instantly. It looks like:

POST https://api.yourdomain.com/inbound/instantly/<your-workspace-id>

Copy it directly from the UI — your workspace ID is already embedded.

Auth

Set INSTANTLY_WEBHOOK_SECRET in nous.env. Nous validates the x-nous-signature header on every inbound request.

Setup in Instantly

In Instantly, go to Settings → Integrations → Webhooks.
Click Add Webhook and paste your URL from Nous.
Select the events you want (see table below).

Supported events

Instantly event	Activity logged	Creates contact?
`reply_received`	`email_received`	Yes
`email_replied`	`email_received`	Yes
`email_sent`	`email_sent`	No
`email_opened`	`email_opened`	No
`email_bounced`	`email_bounced`	No
`unsubscribed`	`email_bounced`	No

Replies create a new contact if one doesn’t exist yet — a reply to a cold email is a strong intent signal. All other events are update-only.

Payload

Nous reads these fields from the Instantly payload:

{
  "event_type": "reply_received",
  "lead_email": "prospect@company.com",
  "lead_first_name": "Jane",
  "lead_last_name": "Smith",
  "campaign_id": "camp_123",
  "campaign_name": "Q2 Outreach",
  "preview_text": "Thanks for reaching out...",
  "message_id": "msg_abc123"
}

Deduplication

Events are deduplicated by message_id. If Instantly retries a delivery, the duplicate is silently dropped.

Getting Started

Installation

Providers

Instantly Webhook

Endpoint

Auth

Setup in Instantly

Supported events

Payload

Deduplication

​Endpoint

​Auth

​Setup in Instantly

​Supported events

​Payload

​Deduplication

Endpoint

Auth

Setup in Instantly

Supported events

Payload

Deduplication