Connector guide2-minute read9 MCP toolsEN · DE · IT

How to Connect Omnisend to ChatGPT — via MCP

Manage Omnisend (e-commerce marketing automation: contacts, campaigns, events, products, categories) from any AI agent. 9 tools, X-API-KEY auth.

HCBy HelpCode teamUpdated 2 min read Open source on GitHub

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MCP connector

Omnisend

Manage Omnisend (e-commerce marketing automation: contacts, campaigns, events, products, categories) from any AI agent. 9 tools, X-API-KEY auth.

Tools

9

Region

INTL

Category

email

Authentication

API Key

Required env vars

OMNISEND_API_KEY
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  • 7-day free trial
    No credit card required
  • GDPR & SOC 2 ready
    EU data residency, audit logs
  • Open-source on GitHub
    Open source AGPL-3.0
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

Skip the install. Get this working in under 2 minutes.

Start a free trial on cloud.anythingmcp.com, add the Omnisend in one click, then point your AI client (Claude, ChatGPT, Copilot or Cursor) at the generated MCP endpoint. No Docker, no git clone, zero engineering experience required.

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Summary

Manage Omnisend (e-commerce marketing automation: contacts, campaigns, events, products, categories) from any AI agent. 9 tools, X-API-KEY auth.

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Example prompts for Omnisend

Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.

Omnisend · live via MCP
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Opus 4.7

Claude is AI and can make mistakes. Please double-check responses.

💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → Omnisend, paste your credentials, mint an MCP API key — done. No Docker, no git clone, no local server.

Omnisend + ChatGPT

Manage Omnisend (e-commerce marketing automation: contacts, campaigns, events, products, categories) from any AI agent. 9 tools, X-API-KEY auth.

Prerequisites

See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:

OMNISEND_API_KEY

Step 1 — Get credentials

This connector wraps the Omnisend REST API v3 (api.omnisend.com/v3).

Setup:

  1. Log into https://app.omnisend.com → top-right avatar → Store settings → Integrations & API → API keys → Create API key.
  2. Set OMNISEND_API_KEY.

Authentication: X-API-KEY: ${OMNISEND_API_KEY}.

Contact statuses: subscribed, unsubscribed, nonSubscribed — per channel (email vs SMS).

Custom events: trigger automations via the events endpoint. Send an event with name + email/contactID + properties; Omnisend matches it to active workflows.

Pagination: cursor-based via paging.next. limit (max 250).

Rate limits: 400 req/min per token. 429 with Retry-After.

…(continued in the in-app connector instructions)

Step 2 — Install the adapter

git clone https://github.com/HelpCode-ai/anythingmcp.git
cd anythingmcp && docker compose up -d

Step 3 — Add the connector in ChatGPT

ChatGPT supports MCP servers via the Connectors feature (Plus / Pro / Team / Enterprise plans). The free tier does not support custom connectors.

  1. Open ChatGPT → Settings → Connectors (or click the 🔧 icon in the composer → Manage connectors).
  2. Click "Add custom connector".
  3. Fill in:
    • Name: Omnisend
    • MCP server URL: https://cloud.anythingmcp.com/mcp
    • Authentication: Bearer token → paste your MCP API key (from AnythingMCP → Profile → MCP API Keys → New Key)
  4. Click Connect to authorize.

Available tools

ToolWhat it does
omnisend_list_contactsList contacts
omnisend_get_contactGet one contact by Omnisend contactID OR email
omnisend_upsert_contactCreate or update a contact
omnisend_trigger_eventTrigger a custom event for a contact
omnisend_list_campaignsList campaigns
omnisend_get_campaignGet one campaign with stats
omnisend_list_productsList products in the Omnisend catalog (used by product-recommendation blocks)
omnisend_upsert_productAdd or update a product in the catalog
omnisend_list_categoriesList product categories

FAQ

Does ChatGPT free tier work with custom MCP connectors? No — Plus, Pro, Team or Enterprise required.

Next steps

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