n8n-nodes-sendy

This is an n8n community node. It lets you use Sendy in your n8n workflows.

Sendy is a credit-based SMS marketing platform for the Israeli market — send SMS, read the replies people send back to your virtual number, and manage contacts, segments and senders from your automations.

n8n is a fair-code licensed workflow automation platform.

Installation
Operations
Credentials
Compatibility
Usage
Resources

Installation

Follow the installation guide in the n8n community nodes documentation. In n8n, go to Settings → Community Nodes → Install and enter n8n-nodes-sendy.

Operations

Credentials

You need a Sendy account and an API key.

1. In Sendy, open Developers and create an API key (it starts with sk_live_).
2. In n8n, create a Sendy API credential and paste the key.
3. Leave Base URL as https://sendy.co.il/api/v1 for production (change it only to point at a staging or self-hosted instance).

The credential is validated against GET /credits when you save it.

Compatibility

Requires n8n 1.x. Tested against the Sendy /api/v1 public API.

Usage

• Billing: 1 credit per message per 201 characters, any encoding. Check the balance with Credit → Get Balance before bulk sends.
• Message length: hard limit 603 characters (3 credits). A longer body is rejected with MESSAGE_TOO_LONG — past that length the SMS gateway silently truncates on the wire, so Sendy refuses instead of charging you for a message that arrives cut short.
• Senders: only approved senders work as From, and the value is matched literally — always pick from the dropdown, because a re-typed 0532740000 is rejected as SENDER_NOT_APPROVED even when it is your own number. If your workspace holds a Sendy virtual number it appears in the list as a +972… phone number: send from it and recipients can reply.
• Send mode: Marketing rejects the send (403, nothing charged) when the recipient unsubscribed from your workspace (RECIPIENT_UNSUBSCRIBED) or is on its blocked-numbers list (RECIPIENT_BLOCKED) — it does not silently skip. Transactional declares the message isn't marketing and skips both checks. Omit it to use your workspace default.
• Other rejections: CONTENT_FLAGGED (422 — the body matched the platform's restricted-content policy, nothing charged) and ACCOUNT_UNDER_REVIEW (403 — a new account may only send to its own verified sender number until the review completes).
• Unsubscribe: add Unsubscribe under Additional Fields on Contact → Create or Update to sync an opt-out you received elsewhere (CRM, form, phone call). A number that is not a contact yet is created already unsubscribed, and segments are optional for it. The number is also added to the workspace blocklist. Repeating it is safe. Sendy never re-subscribes through the API.
• Inbound replies: Inbound Message → Get Many returns messages oldest first with cursor pagination. opt_out: "detected" means Sendy already unsubscribed that sender automatically (opt_out_applied_at says when); "suspected" is a removal word inside a longer message, flagged in the Sendy app but never auto-applied. To poll for new replies, run it on a Schedule trigger with Received Since set to your last run. A long inbound message arrives as one item per SMS part — the gateway does not reassemble them.
• Contacts: upsert matches on phone. On an existing contact, blank/omitted fields keep their current value and segments are only added. Provide at least one segment when creating a new contact. Israeli phone numbers are normalized automatically.
• Rate limit: 60 requests/minute per API key.

Resources

• n8n community nodes documentation
• Sendy