Omnisend Automation

Automate ecommerce marketing operations -- create and update contacts, manage subscriber lists with cursor pagination, run bulk batch operations, and segment audiences -- all orchestrated through the Composio MCP integration.

Toolkit docs: composio.dev/toolkits/omnisend

Setup

1. Connect your Omnisend account through the Composio MCP server at https://rube.app/mcp
2. The agent will prompt you with an authentication link if no active connection exists
3. Once connected, all OMNISEND_* tools become available for execution

Core Workflows

1. Create or Update a Contact

Upsert a contact by email identifier with subscription status, profile fields, and optional welcome message.

Tool: OMNISEND_CREATE_OR_UPDATE_CONTACT

2. List Contacts with Pagination

Retrieve contacts in batches with optional filters for email, phone, status, segment, or tag.

Tool: OMNISEND_LIST_CONTACTS

3. Get Contact Details

Retrieve the full profile for a single contact when you already have their contact ID.

Tool: OMNISEND_GET_CONTACT

4. Update an Existing Contact

Patch specific fields on a contact by ID without overwriting the entire record.

Tool: OMNISEND_UPDATE_CONTACT

Requires the contactId and the fields to update. Retrieve the contact ID first via OMNISEND_LIST_CONTACTS or OMNISEND_GET_CONTACT.

5. Bulk Batch Operations

Process many records asynchronously in a single call -- contacts, products, orders, events, or categories.

Tool: OMNISEND_CREATE_BATCH

Use batch operations to avoid rate limits when processing large data sets.

Known Pitfalls

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