It's an MCP (Model Context Protocol) server that connects Klaviyo to your AI, giving the agent tools to act on your data, through a single remote link.

Which AI clients does it work with?

Any MCP-compatible client: Claude (web, desktop and mobile), Cursor, ChatGPT with connectors, OpenClaw and other agents.

No. Paste the remote URL into your client, authenticate once, and you're done. No packages to install, no code to write.

Is it secure? Can the AI change my data?

Access is authorized by you and can be revoked anytime. Permissions follow what Klaviyo exposes; you approve them when connecting.

Is my customers' data stored on mcp.ai?

No. Whatever Klaviyo returns passes through our infrastructure solely to reach the AI assistant you chose, and that content is not stored. By design we don't persist tool-call payloads: the log keeps metadata only (which tool, timestamp, status, duration, size and a hash of the arguments). Your credentials are stored encrypted and you can revoke the connection at any time. Retention periods and details are in the Privacy Policy at mcp.ai/privacy.

Is my data used to train AI models?

No. Nothing that flows through the connector is used to train or improve AI models, nor shared with third parties for that purpose. The conversation itself, meaning your prompts and the AI's answers, is processed by the AI provider you choose (Claude, ChatGPT and the like), under their own privacy policy.

How much does it cost?

You start free and upgrade when you need more usage. Billing and limits are managed in your mcp.ai account.

Can I cancel anytime?

Yes. Plans are monthly and can be cancelled at any time, with no lock-in.

Klaviyo MCP Server and REST API

Klaviyo

Connect your Klaviyo account and use 225 tools for marketing automation straight from your AI agent. Connect with your own API key. Klaviyo is a data-driven email and SMS marketing platform that allows e-commerce brands to deliver targeted messages, track conversions, and scale customer relationships.

Install in your client

MCP server URL

https://api.mcp.ai/p_klaviyo

Secure connection via OAuth 2.0

Tools (225)

For developers

API & agent docs

Machine-readable docs to plug this server into an agent or call it over REST.

Skill (how to use)

Markdown: use via MCP or via the direct REST API.

Open

llms.txt

Agent-readable spec of this server.

Open

For agents

Install prompt — paste into Claude, ChatGPT, Cursor or any MCP agent and it sets itself up.

Open

Postman collection

Import the REST API into Postman.

Download

Guides

Guides and tutorials

Step-by-step walkthroughs with copy-paste prompts.

Needs your own key

Como oferecer um MCP dentro do seu produto

Cada usuário do seu app conecta a conta dele: connect sessions com client_ref, webhook de conexão, leitura por API e as páginas de conexão no seu domínio.

Guides

Needs your own key

Cada usuário do seu app com o MCP dele

Em vez de consumir a API no seu backend, cada usuário final pluga o MCP dele no Claude/ChatGPT: toolkit e convite por usuário, isolamento de fábrica e a URL no seu domínio.

Guides

FAQ

Klaviyo

Tools (225)

API & agent docs

Guides and tutorials

Como oferecer um MCP dentro do seu produto

Cada usuário do seu app com o MCP dele

Frequently asked questions

Example prompts

Related tags

Klaviyo

Tools (225)

klaviyo_add_profile_to_listAdd profiles to a Klaviyo list by profile IDs or email addresses. This action subscribes profiles to a marketing list, which is ideal for giving marketing consent. You can add up to 1000 profiles per

klaviyo_assign_campaign_message_templateCreates a non-reusable version of the template and assigns it to the message.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:write`

klaviyo_bulk_create_client_eventsUse the client-side endpoint with a public API key to track profile activity. It accepts up to 1000 events/request with rates of 10/s burst and 150/m steady. For server-side, use the bulk create event

klaviyo_bulk_create_eventsBulk create events for multiple profiles in a single request. Accepts up to 1,000 events with a 5MB max payload. Each event requires a profile identifier (email, phone_number, or external_id) and a me

klaviyo_cancel_campaign_sendCancel or revert a campaign send job. Use 'cancel' to permanently stop a campaign (status becomes CANCELED), or 'revert' to return it to DRAFT for editing. This action modifies a campaign send job tha

klaviyo_create_back_in_stock_subscriptionUse the server-side endpoint to subscribe to restock alerts, following the Back in Stock API guide. For client-side, use the POST endpoint provided. Rate limits: 350/s burst and 3500/m steady. Require

klaviyo_create_campaignCreates a campaign given a set of parameters, then returns it.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:write`

klaviyo_create_campaign_cloneClones an existing campaign, returning a new campaign based on the original with a new ID and name.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:write`

klaviyo_create_campaign_recipient_estimation_jobStart an asynchronous task to estimate the number of recipients for a campaign. This action creates a background job that calculates how many profiles would receive the campaign based on its current a

klaviyo_create_campaign_send_jobTrigger a campaign to send asynchronously<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:write`

klaviyo_create_catalog_categoryCreate a new catalog category.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `700/m` **Scopes:** `catalogs:write`

klaviyo_create_catalog_category_relationships_itemsCreate a new item relationship for the given category ID.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `700/m` **Scopes:** `catalogs:write`

klaviyo_create_catalog_itemCreate a new catalog item.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `700/m` **Scopes:** `catalogs:write`

klaviyo_create_catalog_item_relationships_categoriesCreate a new catalog category relationship for the given item ID.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `700/m` **Scopes:** `catalogs:write`

klaviyo_create_catalog_variantCreate a new variant for a related catalog item.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `700/m` **Scopes:** `catalogs:write`

klaviyo_create_client_back_in_stock_subscriptionUse the endpoint for client-side back in stock notifications with a public API key. For server-side, use POST /api/back-in-stock-subscriptions. Limits are 350 requests per second and 3500 per minute.

klaviyo_create_client_event2Create a client-side event in Klaviyo to track user interactions. This action uses the company_id in the request body instead of as a query parameter. Use when tracking events from publicly-browseable

klaviyo_create_client_subscriptionEndpoint manages email/SMS opt-ins using consent and requires public API key for client use. Allows single-channel with details. Rate limit: 100/s burst, 700/m steady, under 'subscriptions:write'.

klaviyo_create_couponCreates a new coupon.<br><br>*Rate limits*:<br>Burst: `3/s`<br>Steady: `60/m` **Scopes:** `coupons:write`

klaviyo_create_coupon_codeSynchronously creates a coupon code for the given coupon.<br><br>*Rate limits*:<br>Burst: `350/s`<br>Steady: `3500/m` **Scopes:** `coupon-codes:write`

klaviyo_create_eventCreate or update a profile event with minimum identifiers and metric name. Success means validation, not completion. Burst limit: 350/s, Steady: 3500/m. Scope required: `events:write`.

klaviyo_create_listCreate a new list.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m`<br>Daily: `100/d` **Scopes:** `lists:write`

klaviyo_create_or_update_client_profileUpdate user profiles without tracking using a public client-side API; use a private server-side API for identifier changes. Burst rate is 350 requests/sec and 3500 requests/min with 'profiles:write' a

klaviyo_create_or_update_client_push_tokenThis endpoint for mobile SDKs (iOS & Android) creates/updates push tokens using a public API key. Push notifications must be enabled. For migrating tokens use the server-side POST endpoint. Rate limit

klaviyo_create_or_update_profileCreate or update a profile in Klaviyo with the given attributes. This action allows you to create a new profile or update an existing one if it already exists (based on email or other identifiers). Re

klaviyo_create_or_update_push_tokenCreate or update a push token for mobile push notifications. This server-side endpoint is used for migrating push tokens from other platforms to Klaviyo. For creating tokens from mobile devices, use K

klaviyo_create_profileCreate a new profile.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `700/m` **Scopes:** `profiles:write`

klaviyo_create_segmentCreate a segment.<br><br>*Rate limits*:<br>Burst: `1/s`<br>Steady: `15/m`<br>Daily: `100/d` **Scopes:** `segments:write`

klaviyo_create_tagSummary: Instructions on creating a tag within an account's designated tag group with a maximum of 500 tags, with optional tag group specification. Rate limits are 3/s burst and 60/min steady. Tag: #T

klaviyo_create_tag_groupCreate tag groups up to 50 per account, defaulting to non-exclusive unless specified. Related resources can have multiple non-exclusive tags but only one if exclusive. Rate limits: 3/s burst, 60/m ste

klaviyo_create_tag_relationshipsAssociate a tag with other resources (flows, lists, segments, or campaigns) in Klaviyo. Use when you need to link a tag to one or more resources for organizational purposes. Note: A resource can have

klaviyo_create_templateSummary: Custom HTML templates can be created unless an account reaches 1,000 template limit. Use sparse fieldsets to request specific fields. Rate limits are 10 per second and 150 per minute. Require

klaviyo_create_template_cloneClone a template by its ID, but cloning fails if account has 1,000+ templates. API limit: 1,000 templates. Rate limits are 10 per second and 150 per minute. Requires `templates:write` scope.

klaviyo_create_template_renderRender an email template with specific context and sparse fieldsets, then get HTML/plain text. Rate limit: 3/s burst, 60/m steady. Scope: templates:read.

klaviyo_create_webhookCreate a new Webhook to receive real-time notifications when specific events occur in Klaviyo (e.g., email clicks, SMS sent). Rate limits: Burst: 1/s, Steady: 15/m Required scopes: webhooks:write, eve

klaviyo_delete_campaignDelete a campaign with the given campaign ID.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:write`

klaviyo_delete_catalog_categoryDelete a catalog category using the given category ID.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `700/m` **Scopes:** `catalogs:write`

klaviyo_delete_catalog_category_relationships_itemsDelete item relationships for the given category ID.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `700/m` **Scopes:** `catalogs:write`

klaviyo_delete_catalog_itemDelete a catalog item with the given item ID.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `700/m` **Scopes:** `catalogs:write`

klaviyo_delete_catalog_item_relationships_categoriesDelete catalog category relationships for the given item ID.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `700/m` **Scopes:** `catalogs:write`

klaviyo_delete_catalog_variantDelete a catalog item variant with the given variant ID.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `700/m` **Scopes:** `catalogs:write`

klaviyo_delete_couponDelete the coupon with the given coupon ID.<br><br>*Rate limits*:<br>Burst: `3/s`<br>Steady: `60/m` **Scopes:** `coupons:write`

klaviyo_delete_coupon_codeDeletes a coupon code specified by the given identifier synchronously. If a profile has been assigned to the coupon code, an exception will be raised<br><br>*Rate limits*:<br>Burst: `350/s`<br>Steady:

klaviyo_delete_flowDelete a flow with the given flow ID.<br><br>*Rate limits*:<br>Burst: `3/s`<br>Steady: `60/m` **Scopes:** `flows:write`

klaviyo_delete_listDelete a list with the given list ID.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `lists:write`

klaviyo_delete_segmentDelete a segment with the given segment ID.<br><br>*Rate limits*:<br>Burst: `3/s`<br>Steady: `60/m` **Scopes:** `segments:write`

klaviyo_delete_tagDelete the tag with the given tag ID. Any associations between the tag and other resources will also be removed.<br><br>*Rate limits*:<br>Burst: `3/s`<br>Steady: `60/m` **Scopes:** `tags:read` `tags:w

klaviyo_delete_tag_groupDelete a specified tag group and its contents; associated resource links will be removed. The default group is undeletable. Rate limits: 3/s burst, 60/m steady. Requires tags:read and tags:write permi

klaviyo_delete_tag_relationshipsRemove a tag's association with other resources like flows, campaigns, lists, or segments. Use when you need to untag resources without deleting the tag itself.

klaviyo_delete_templatePermanently delete a template from your Klaviyo account using its unique template ID. This action is destructive and cannot be undone. Rate limits: Burst 10/s, Steady 150/m. Requires 'templates:write'

klaviyo_delete_webhookPermanently delete a webhook subscription from your Klaviyo account. This action removes the webhook configuration, stopping all future event notifications to the webhook's endpoint URL. This operatio

klaviyo_get_accountRetrieve a single account object by its account ID. You can only request the account by which the private API key was generated.<br><br>*Rate limits*:<br>Burst: `1/s`<br>Steady: `15/m` **Scopes:** `ac

klaviyo_get_accountsUse a private API key to fetch an associated account's details like contact info, timezone, and currency, as well as validate the key. Rate limit: 1 request/second, 15 requests/minute. Scope required:

klaviyo_get_bulk_create_coupon_codes_jobTool to get a coupon code bulk create job with the given job ID. Use when you need to check the status of a previously initiated bulk coupon code creation job. Rate limits: 75/s burst, 700/m steady. R

klaviyo_get_bulk_delete_catalog_items_jobGet a catalog item bulk delete job with the given job ID. Use this to check the status and progress of a bulk delete operation for catalog items. Rate limits: 350/s burst, 3500/m steady. Required scop

klaviyo_get_bulk_profile_import_jobGet a bulk profile import job with the given job ID.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `lists:read` `profiles:read`

klaviyo_get_bulk_profile_import_job_errorsGet import errors for the bulk profile import job with the given ID.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `profiles:read`

klaviyo_get_bulk_profile_import_job_listsGet list for the bulk profile import job with the given ID.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `lists:read`

klaviyo_get_bulk_profile_import_job_profilesGet profiles for the bulk profile import job with the given ID.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `profiles:read`

klaviyo_get_bulk_profile_import_job_relationships_listsGet list relationship for the bulk profile import job with the given ID.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `lists:read`

klaviyo_get_bulk_profile_import_job_relationships_profilesGet profile relationships for the bulk profile import job with the given ID.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `profiles:read`

klaviyo_get_bulk_profile_import_jobsGet all bulk profile import jobs. Returns a maximum of 100 jobs per request.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `lists:read` `profiles:read`

klaviyo_get_bulk_update_catalog_items_jobGet a catalog item bulk update job with the given job ID. An `include` parameter can be provided to get the following related resource data: `items`.

klaviyo_get_bulk_update_categories_jobRetrieve a catalog category bulk update job by its ID from Klaviyo. This action fetches the status and details of a bulk update job for catalog categories, including progress metrics (total, completed

klaviyo_get_bulk_update_variants_jobTool to retrieve a catalog variant bulk update job by its ID. Use when you need to check the status, progress, or results of a bulk update operation on catalog variants.

klaviyo_get_campaignRetrieve a specific campaign by its ID from Klaviyo. This action fetches detailed information about a single campaign including its name, status, audience settings, send strategy, and optionally relat

klaviyo_get_campaign_campaign_messagesReturn all messages that belong to the given campaign.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:read`

klaviyo_get_campaign_messageReturns a specific message based on a required id.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:read`

klaviyo_get_campaign_message_campaignReturn the related campaign<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:read`

klaviyo_get_campaign_message_relationships_campaignReturns the ID of the related campaign<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:read`

klaviyo_get_campaign_message_relationships_templateReturns the ID of the related template<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:read` `templates:read`

klaviyo_get_campaign_message_templateReturn the related template<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:read` `templates:read`

klaviyo_get_campaign_recipient_estimationGet estimated recipients for a given campaign ID using `Create Campaign Recipient Estimation Job`. Rate limits are 10/s burst and 150/m steady. Required scope: `campaigns:read`.

klaviyo_get_campaign_recipient_estimation_jobRetrieve the status of a recipient estimation job triggered with the `Create Campaign Recipient Estimation Job` endpoint.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaig

klaviyo_get_campaign_relationships_campaign_messagesReturns the IDs of all messages associated with the given campaign.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:read`

klaviyo_get_campaign_relationships_tagsReturns the IDs of all tags associated with the given campaign.<br><br>*Rate limits*:<br>Burst: `3/s`<br>Steady: `60/m` **Scopes:** `campaigns:read` `tags:read`

klaviyo_get_campaign_send_jobGet a campaign send job<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m` **Scopes:** `campaigns:read`

klaviyo_get_campaign_tagsReturn all tags that belong to the given campaign.<br><br>*Rate limits*:<br>Burst: `3/s`<br>Steady: `60/m` **Scopes:** `campaigns:read` `tags:read`