EnoSend
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Features

Everything you need to ship

Per product, here's what's on offer today — and what's lined up next.

WhatsApp API

REST API for sending and receiving WhatsApp messages

Text, media & rich messages

Text, images, video, audio, documents, buttons, polls, lists, locations.

Signed webhooks

HMAC-SHA256 signed delivery — verify the X-Signature header.

Multi-instance management

Create, list, delete instances via API. Each is an isolated WhatsApp session.

23 webhook event types

Messages, delivery status, connection, groups, contacts, QR — subscribe to what you need.

Rate limits by plan

60–600 req/min, with X-RateLimit headers on every response.

Session-based billing

Pay per conversation session, not per message. Auto top-up keeps service running.

Bulk Messaging

Free campaigns & lists — optional Human-mode for natural outreach
Free today. Campaigns, lists, and scheduling are included. Add Human-mode per number when you want natural pacing on outreach — see pricing.

Contact lists

Import CSV, tag, dedupe. Segment by any field.

Campaign builder

Variables, media, buttons, polls — drag-and-drop.

Scheduling

Send now, schedule for later, or trigger from a webhook.

Live analytics

Delivery, read, response rates per segment.

Spend caps

Set a max budget per campaign — we stop before you overspend.

Ready to build?

Connect your WhatsApp, grab an API key, and start sending — no per-message fees.