Integration
Connect Klaviyo to Resend
When New Event fires in Klaviyo, your agent runs Add Contact to Segment in Resend. 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 Klaviyo and Resend 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 Klaviyo can start in Resend
When New Event in Klaviyo
then Add Contact to Segment in Resend
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 Klaviyo and Resend
Triggers and actions 2 triggers · 166 actions
- New Event
Polling trigger. Fires when a new event (metric occurrence) is recorded, ordered by most-recent datetime.
- New or Updated Profile
Polling trigger. Fires when a profile is created or updated, ordered by most-recently updated.
- Add Categories to Catalog Item
Add Categories to Catalog Item
- Add Items to Catalog Category
Add Items to Catalog Category
- Add Profiles to List
Add Profiles to List
- Add Profile to List
Add an existing profile to a list by profile ID.
- Bulk Create Catalog Categories
Bulk Create Catalog Categories
- Bulk Create Catalog Items
Bulk Create Catalog Items
- Bulk Create Catalog Variants
Bulk Create Catalog Variants
- Bulk Create Coupon Codes
Bulk Create Coupon Codes
- Bulk Create Events
Bulk Create Events
- Bulk Delete Catalog Categories
Bulk Delete Catalog Categories
- Bulk Delete Catalog Items
Bulk Delete Catalog Items
- Bulk Delete Catalog Variants
Bulk Delete Catalog Variants
- Bulk Import Profiles
Bulk Import Profiles
- Bulk Subscribe Profiles
Bulk Subscribe Profiles
- Bulk Suppress Profiles
Bulk Suppress Profiles
- Bulk Unsubscribe Profiles
Bulk Unsubscribe Profiles
- Bulk Unsuppress Profiles
Bulk Unsuppress Profiles
- Bulk Update Catalog Categories
Bulk Update Catalog Categories
- Bulk Update Catalog Items
Bulk Update Catalog Items
- Bulk Update Catalog Variants
Bulk Update Catalog Variants
- Cancel Campaign Send
Cancel Campaign Send
- Clone Campaign
Clone Campaign
- Clone Template
Clone Template
- Create Back In Stock Subscription
Create Back In Stock Subscription
- Create Campaign
Create Campaign
- Create Campaign Clone
Create Campaign Clone
- Create Catalog Category
Create Catalog Category
- Create Catalog Item
Create Catalog Item
- Create Catalog Variant
Create Catalog Variant
- Create Coupon
Create Coupon
- Create Coupon Code
Create Coupon Code
- Create Event
Track an event for a profile (e.g. a custom metric like "Placed Order").
- Create Flow
Create Flow
- Create List
Create a new list.
- Create or Update Profile
Create a profile if it doesn't exist, otherwise update the matching profile (upsert by email/phone/id).
- Create Profile
Create a new profile. Errors if a profile with the email already exists.
- Create Segment
Create Segment
- Create Tag
Create Tag
- Create Template
Create Template
- Delete Campaign
Delete Campaign
- Delete Catalog Category
Delete Catalog Category
- Delete Catalog Item
Delete Catalog Item
- Delete Catalog Variant
Delete Catalog Variant
- Delete Coupon
Delete Coupon
- Delete Coupon Code
Delete Coupon Code
- Delete Flow
Delete Flow
- Delete List
Delete List
- Delete Segment
Delete Segment
- Delete Tag
Delete Tag
- Delete Template
Delete Template
- Get Campaign
Get Campaign
- Get Campaign Recipient Estimation
Get Campaign Recipient Estimation
- Get Campaigns
Get Campaigns
- Get Catalog Categories
Get Catalog Categories
- Get Catalog Category
Get Catalog Category
- Get Catalog Item
Get Catalog Item
- Get Catalog Items
Get Catalog Items
- Get Catalog Variant
Get Catalog Variant
- Get Catalog Variants
Get Catalog Variants
- Get Coupon
Get Coupon
- Get Coupon Code
Get Coupon Code
- Get Coupon Codes
Get Coupon Codes
- Get Coupons
Get Coupons
- Get Event
Get Event
- Get Events
Retrieve events, optionally filtered (e.g. by metric or profile).
- Get Flow
Get Flow
- Get Flows
Get Flows
- Get Flows Triggered by List
Get Flows Triggered by List
- Get Flows Triggered by Metric
Get Flows Triggered by Metric
- Get Flows Triggered by Segment
Get Flows Triggered by Segment
- Get Form
Get Form
- Get Forms
Get Forms
- Get Form Version
Get Form Version
- Get Image
Get Image
- Get Images
Get Images
- Get List
Get List
- Get List Profiles
Get all profiles that are members of a given list.
- Get Lists
Retrieve all lists in the account.
- Get Metric
Get Metric
- Get Metrics
Retrieve all metrics in the account.
- Get Profile
Get Profile
- Get Profile by Email
Fetch a single profile by its email address. Emits empty values if no profile is found.
- Get Profile by ID
Fetch a single profile by its Klaviyo profile ID.
- Get Profiles
List profiles, optionally filtered by email or other attributes.
- Get Push Tokens
Get Push Tokens
- Get Reviews
Get Reviews
- Get Segment
Get Segment
- Get Segment Profiles
Get all profiles in a given segment.
- Get Segments
Retrieve all segments in the account.
- Get Tag
Get Tag
- Get Tags
Get Tags
- Get Template
Get Template
- Get Templates
Get Templates
- Merge Profiles
Merge Profiles
- Query Campaign Values
Query Campaign Values
- Query Flow Series
Query Flow Series
- Query Flow Values
Query Flow Values
- Query Form Series
Query Form Series
- Query Form Values
Query Form Values
- Query Metric Aggregates
Query Metric Aggregates
- Query Segment Series
Query Segment Series
- Query Segment Values
Query Segment Values
- Refresh Campaign Recipient Estimation
Refresh Campaign Recipient Estimation
- Remove Categories from Catalog Item
Remove Categories from Catalog Item
- Remove Items from Catalog Category
Remove Items from Catalog Category
- Remove Profile from List
Remove a profile from a list by profile ID.
- Remove Profiles from List
Remove Profiles from List
- Remove Tag from Campaigns
Remove Tag from Campaigns
- Remove Tag from Flows
Remove Tag from Flows
- Remove Tag from Lists
Remove Tag from Lists
- Remove Tag from Segments
Remove Tag from Segments
- Render Template
Render Template
- Request Profile Deletion
Request Profile Deletion
- Send Campaign
Send Campaign
- Subscribe Profile
Subscribe a profile (email/SMS consent) to a given list.
- Suppress Profile
Suppress a profile from receiving email marketing (global suppression).
- Tag Campaigns
Tag Campaigns
- Tag Flows
Tag Flows
- Tag Lists
Tag Lists
- Tag Segments
Tag Segments
- Unsubscribe Profile
Unsubscribe a profile from email/SMS marketing for a given list.
- Update Campaign
Update Campaign
- Update Catalog Category
Update Catalog Category
- Update Catalog Item
Update Catalog Item
- Update Catalog Variant
Update Catalog Variant
- Update Categories for Catalog Item
Update Categories for Catalog Item
- Update Coupon
Update Coupon
- Update Coupon Code
Update Coupon Code
- Update Flow Status
Update Flow Status
- Update Image
Update a Klaviyo image. Reads the image first, overlays only the values you supply, then saves the merged result — so anything you leave blank keeps its current value.
- Update Items for Catalog Category
Update Items for Catalog Category
- Update List
Update List
- Update Profile
Update an existing profile by its Klaviyo profile ID.
- Update Segment
Update Segment
- Update Tag
Update Tag
- Update Template
Update Template
- Upload Image From File
Upload Image From File
- Upload Image From URL
Upload Image From URL
- Add Contact to Segment
Adds a contact to a Resend segment. You can identify the contact by its ID or email address.
- Add Suppression
Adds an email address to your Resend suppression list so no further mail is sent to it.
- Cancel Email
Cancels a scheduled Resend email that has not been sent yet.
- Create API Key
Creates a new Resend API key. The key itself is returned once, so store it right away.
- Create Contact
Creates a contact in Resend. Returns the new contact's ID.
- Create Domain
Adds a sending domain to Resend. Returns the DNS records you need to add at your domain host to verify it.
- Create Segment
Creates a new segment in Resend for grouping contacts.
- Delete API Key
Deletes a Resend API key so it can no longer be used.
- Delete Contact
Deletes a contact from Resend. You can identify the contact by its ID or email address.
- Delete Domain
Removes a sending domain from Resend.
- Delete Segment
Deletes a segment from Resend. The contacts themselves are not deleted.
- List API Keys
Returns the API keys on your Resend account, with each key's name and when it was last used. The key values themselves are never returned.
- List Contacts
Returns the contacts in your Resend account, optionally limited to one segment.
- List Domains
Returns the sending domains on your Resend account and each one's verification status.
- List Segments
Returns the contact segments in your Resend account.
- List Sent Emails
Returns the emails you have sent through Resend, newest first, with each email's id, sender, recipients, subject, send time and latest delivery event. Supports paging before or after a given email id.
- List Suppressions
Returns the email addresses on your Resend suppression list, showing for each one the address, why it was suppressed (bounce, complaint or added manually), the email that triggered it and when it was added.
- Remove Contact From Segment
Removes a contact from one of your Resend segments. Identify the contact by its ID or by its email address, and name the segment to take it out of. The contact itself is not deleted.
- Remove Suppression
Takes an email address off your Resend suppression list so you can send to it again. Identify it by the suppression ID or by the email address itself.
- Retrieve Contact
Returns one contact from your Resend audience, including their name, email address, whether they have unsubscribed, when they were added, and any custom properties stored on them. Look the contact up by its ID or by its email address.
- Retrieve Domain
Returns one of your Resend sending domains, including its name, verification status, sending region, tracking settings and the DNS records it needs with each record's current status.
- Retrieve Segment
Returns one of your Resend segments by its ID, with the segment's name and when it was created.
- Retrieve Sent Email
Returns one email you sent through Resend, with its sender, recipients, subject, HTML and text body, tags, send time and latest delivery event.
- Send Batch Emails
Sends up to 100 emails through Resend in a single call. Give it a list of emails, each with a sender, recipients, subject and body, and it returns the id of every email it created.
- Send Email
Sends an email through Resend. Set the sender, recipients and subject, provide an HTML or plain text body, and optionally add CC/BCC, reply-to, attachments, tags or a send time.
- Update Contact
Updates a contact in your Resend audience. Identify the contact by ID or email address, then change the name, the subscribed/unsubscribed state, or the custom properties. Anything you leave blank stays as it is.
- Update Email
Reschedules an email you already queued in Resend, moving it to a new send date and time. Only emails that have not gone out yet can be changed.
- Verify Domain
Asks Resend to re-check the DNS records for one of your sending domains and start verifying it. Verification runs in the background, so the domain shows as pending until it finishes.
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
Reviews
What our customers say
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Questions
Klaviyo and Resend, answered
What can start an automation from Klaviyo?
Any of Klaviyo's 2 triggers in the catalog, including New Event and New or Updated Profile. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Resend when something happens in Klaviyo?
Any of Resend's 28 actions, including Create API Key, Create Contact, Create Domain and Create Segment. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Resend to Klaviyo?
Resend has no triggers in the catalog today, so automations start in Klaviyo. If you need the other direction, ask: your agent reads Resend's API documentation and adds it.
Do I have to build a connector for Klaviyo or Resend?
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 Klaviyo and Resend 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.