Integration
Connect Omnisend to Retell AI
When New Contact fires in Omnisend, your agent runs Add Agent in Retell AI. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want Omnisend and Retell AI to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiOne connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.
Set it up in your client
Claude Code
Run this in the directory you want to work in.
claude mcp add --transport http -s project apiant-ai https://mcp.apiant.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)Claude, web and desktop
Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.
Setup guide (opens in a new tab)Cursor
Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.
Setup guide (opens in a new tab)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)Codex and the ChatGPT desktop app
Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.
Setup guide (opens in a new tab)Any other MCP client
Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.
Setup guide (opens in a new tab)Example flows
What Omnisend can start in Retell AI
When New Contact in Omnisend
then Add Agent in Retell AI
When Updated Contacts in Omnisend
then Create Knowledge Base in Retell AI
Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.
Everything your agent can do with Omnisend and Retell AI
Triggers and actions 2 triggers · 63 actions
Trigger
New ContactTriggers when a new contact is added to your Omnisend account, optionally limited to a subscription status, segment or tag.
Trigger
Updated ContactsTriggers when a contact is created or updated in Omnisend, newest changes first.
Action
Add email templateCreates a new email template in Omnisend with a name, general style settings and content sections.
Action
Add productCreates a product in your Omnisend catalog, with optional variants, images, categories and tags.
Action
Add product categoryCreates a new product category in your Omnisend store.
Action
Add segmentCreates a new contact segment in Omnisend from a name and a set of condition rules.
Action
Add tags to contactsAdds one or more tags to contacts chosen by contact ID, email, phone number or segment. Tagging happens in the background, so tags may take a moment to appear.
Action
Cancel CampaignCancels a scheduled or paused campaign (or a started email campaign) in Omnisend and marks it as canceled.
Action
Copy CampaignCreates a new draft copy of an existing campaign, including its content, audience and settings. The copy is named "Copy of: " followed by the original name.
Action
Create CampaignCreates a new draft campaign (email or SMS; regular, A/B test or booster) in Omnisend and returns the created campaign.
Action
Create SubscriberCreates a subscriber (contact) in Omnisend, or updates the existing contact with the same email address.
Action
Delete CampaignDeletes a campaign from your Omnisend account.
Action
Delete Email TemplateDeletes an email template from your Omnisend account by its ID.
Action
Delete ImageDeletes an image from the Omnisend image library by its ID.
Action
Delete productDeletes a product from the Omnisend product catalog by its ID.
Action
Delete SegmentPermanently deletes a segment in Omnisend.
Action
Find CampaignReturns a single Omnisend campaign by its ID, including its name, status, channel, audience, content and sending settings.
Action
Find CampaignsReturns campaigns whose name contains the given text, optionally filtered by status, channel, type and created/updated dates.
Action
Find Email TemplateReturns a single email template, including its name, layout sections and general settings, looked up by its ID.
Action
Find Email TemplatesReturns email templates whose names contain the given text.
Action
Find ImageReturns a single image from your Omnisend image library by its ID, including its URL, size and dimensions.
Action
Find ImagesReturns images in your Omnisend library whose names contain the search text.
Action
Find SegmentReturns an Omnisend segment by its ID, including its name, status and condition rules.
Action
Find SegmentsFinds segments whose name contains the given text.
Action
Get contactReturns a single Omnisend contact by its ID, including profile details, identifiers, tags, segments and custom properties.
Action
Get productReturns a single product from your Omnisend catalog by its ID, including its variants, images, categories and stock status.
Action
Get Segment StatisticsReturns statistics for a segment, including how many contacts it currently contains.
Action
Import Email TemplateCreates a new Omnisend email template by importing raw HTML. Returns the created template.
Action
List contactsReturns Omnisend contacts, optionally filtered by email, phone, subscription status, segment, tag or last-update time.
Action
Remove tags from contactsRemoves one or more tags from contacts chosen by contact ID, email, phone number or segment. Omnisend processes the removal in the background.
Action
Render Email TemplateRenders an email template and returns its full HTML body for preview.
Action
Send Customer EventSends a customer event (custom or recommended) to Omnisend for a contact, creating or updating the contact and triggering any automations based on that event.
Action
Update CampaignUpdates a draft campaign's name, language, content, audience, sending settings, booster or A/B test settings. Only campaigns still in draft can be updated.
Action
Update contactUpdates an existing Omnisend contact by its ID, changing only the fields you fill in, and returns the updated contact.
Action
Update email templateFully replaces an existing Omnisend email template's name, sections and general settings, and returns the updated template.
Action
Update productReplaces an existing product in your Omnisend catalog with the details you provide. Fields left blank are not kept from the previous version.
Action
Update segmentUpdates an existing segment's name and rules. The segment can't be updated while it is being built.
Action
Upload ImageUploads an image to your Omnisend image library from a publicly accessible URL and returns the stored image details.
Action
Add AgentCreate a new Retell AI voice agent attached to a response engine (Retell LLM, custom LLM, or conversation flow) and a voice.
Action
Create Knowledge BaseCreate a new Retell AI knowledge base from texts, URLs and/or a file.
Action
Create Retell LLMCreate a new Retell LLM Response Engine that can be attached to an agent. This is used to generate response output for the agent.
Action
Delete AgentDeletes an existing Retell AI agent, including all of its versions.
Action
Delete Knowledge BaseDelete an existing knowledge base.
Action
Delete Phone NumberDelete a phone number from your Retell AI account.
Action
Delete Retell LLMDelete a Retell LLM response engine.
Action
Get a CallRetrieves the full details of a Retell AI call (phone or web): status, transcript, recording links, post-call analysis, cost and latency.
Action
Get an AgentRetrieve the full configuration of a Retell AI voice agent.
Action
Get a Phone NumberRetrieve the details of one phone number in your Retell AI account, including its bound agents, nickname and webhook settings.
Action
Get a Retell LLMRetrieve the details of a Retell LLM response engine, including its prompt, model, tools and states.
Action
Get a VoiceRetrieve the details of a single Retell AI voice: its name, provider, accent, gender, age and a preview audio link.
Action
Get ConcurrencyGets your Retell AI organization's current number of ongoing calls and its concurrency limits.
Action
Get Knowledge BaseRetrieve the details of a knowledge base, including its processing status and sources.
Action
Import Phone NumberImport a phone number from your own telephony provider (for example a Twilio elastic SIP trunk) into Retell AI and optionally bind agents to it.
Action
List AgentsLists the voice and chat agents in the Retell AI account, optionally filtered by channel or by a name/id search.
Action
List CallsList calls in the Retell AI account, newest first by default, optionally filtered by agent, status, direction, numbers, time range and more. Returns up to 1000 calls; transcripts and recording URLs are not included (use Get a Call for those).
Action
List Knowledge BasesList all knowledge bases in the Retell AI account.
Action
List Phone NumbersLists the phone numbers in your Retell AI account (up to 1000).
Action
List Retell LLMsLists the Retell LLM response engines in the account.
Action
List VoicesList all voices available to the Retell AI account.
Action
Make a Phone CallStart a new outbound phone call from one of your Retell numbers, handled by a Retell voice agent.
Action
Register Phone CallRegister a phone call placed through your own (custom) telephony, so Retell issues a call id your telephony can connect the audio to.
Action
Update AgentUpdates an existing Retell AI voice agent's latest draft version. Only the fields you fill in are changed.
Action
Update CallUpdate the metadata, data storage setting or custom attributes of an existing Retell AI call.
Action
Update Phone NumberUpdates the agents, nickname, webhooks, country restrictions, SIP trunk and fallback settings of a phone number in Retell AI. Only the fields you fill in are changed.
Action
Update Retell LLMUpdate an existing Retell LLM response engine's configuration (prompt, model, etc).
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
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Questions
Omnisend and Retell AI, answered
What can start an automation from Omnisend?
Any of Omnisend's 2 triggers in the catalog, including New Contact and Updated Contacts. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Retell AI when something happens in Omnisend?
Any of Retell AI's 27 actions, including Create Knowledge Base, Create Retell LLM, Update Agent and Update Call. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Retell AI to Omnisend?
Retell AI has no triggers in the catalog today, so automations start in Omnisend. If you need the other direction, ask: your agent reads Retell AI's API documentation and adds it.
Do I have to build a connector for Omnisend or Retell AI?
No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.
Can my AI client use Omnisend and Retell AI without building an automation?
Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.
What happens when something fails?
Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.
Is there a free plan?
Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.