Klaviyo
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Klaviyo — Full Profile (English, 2026-09)
Boston MA; founded 2012 by Andrew Bialecki + Ed Hallen; Series D 30, ~930M+ rev FY26. Public-traded independent (not PE-private like Qualtrics, not VC-private like Supabase/Framer/Miro, not bootstrap, not acquired-kept, not sunset). Ships official Klaviyo MCP server (Claude/ChatGPT connector GA 2026) — joins Rezi/Miro/XMind/Feedly-CTI/Smartlead/Supabase/Framer/GitHub/Webflow/Netlify/Cloudflare/Lokalise cluster.
Website
Field Value Official Website https://www.klaviyo.com · pricing: https://www.klaviyo.com/pricing · developers REST: https://developers.klaviyo.com (v2026-01-15) · MCP: official “Klaviyo MCP” via Claude Connector / ChatGPT connector GA 2026 (no public mcp.kvyo.com URL, distributed through Klaviyo AI app directory) Company Klaviyo, Inc., Boston MA; founded 2012 Bialecki+Hallen; NYSE: KVYO (IPO Sep 20 2023, 778M raised, Series D $9.15B 2021; public independent, not acquired, not PE, not bootstrap, not open-source; 2.2B events/day, 7.3B profiles, 1.6B API calls/day; SOC 2 / ISO 27001 / GDPR / CCPA. Status Active, NYSE-public, not acquired, not shut down Category ai-productivity-data Pipeline Stage none Title
Field Value Product Klaviyo Descriptive Title Klaviyo — Autonomous B2C CRM for Consumer Brands: Email/SMS/RCS/Push/WhatsApp Flows + Klaviyo Data Platform (CDP) + Predictive Analytics (CLV/Churn/Send-Time) + Composer AI Agent + Customer Agent (resolves 65% autonomously) + Official MCP Server (Claude/ChatGPT) + 350+ integrations (Shopify/BigCommerce/Woo/Magento); Free ≤250 profiles / Email 15=1,250 / Enterprise custom (2012 Boston Bialecki+Hallen NYSE KVYO) One-line Positioning D2C brand connects Shopify/Woo → Klaviyo syncs profiles/orders/cart events in real time → marketer builds visual Flow (abandon-cart/welcome/win-back) or prompts Composer to generate one → Leo-style AI scores CLV/churn, picks send time, segments by behavior → Customer Agent handles 65% of support Qs pre-trained on brand → REST v2026 + webhooks + official MCP server let Claude/Cursor draft campaigns/audit flows from prompt; billing is per active profile (not per send, not per seat) auto-upgrades tier on threshold cross; MCP is all-paid-tiers not Free. Features
Field Value Channels Email, SMS/RCS, Mobile Push, WhatsApp, Social retargeting, Reviews; unified single customer profile (Klaviyo Data Platform) Flow Builder Visual drag-and-drop automation: 60+ prebuilt (abandon-cart, browse-abandon, post-purchase, win-back, VIP tier-up); event-triggered from Shopify/Woo/API; A/B split, conditional branches, quota logic Segmentation Dynamic segments by behavior/order history/predictive CLV/churn risk/engagement recency; 1st-party data only, no cookie dependency AI Layer Composer (autonomous marketing agent: audits flows/segments/forms, drafts on-brand campaign from one prompt), Customer Agent (24/7 support, 65% auto-resolution, pre-trained on brand), predictive analytics (CLV, churn probability, optimal send time, predicted gender), AI subject-line + body generator, Remix; AI included in paid plans no credit meter (plan-gated like Todoist/Miro not Motion) Analytics Revenue attribution per flow/email/SMS, benchmark by industry, cohort LTV, form performance, deliverability dashboard CDP / Data Klaviyo Data Platform: real-time event stream (2.5B events/day), 7.3B profiles, custom metrics API, warehouse sync, advanced KDP $500+/mo add-on Integrations 350+ native: Shopify (flagship), WooCommerce, BigCommerce, Magento/Adobe Commerce, Squarespace, Wix; Yotpo/Okendo/Stamped (reviews), Recharge/Bold/Skio (subscriptions), Smile/LoyaltyLion (loyalty), Gorgias/Zendesk (helpdesk), Zapier (9,000+ bridge), Segment/Snowflake/Fivetran (warehouse); MCP server GA 2026 for Claude Desktop/Cursor/ChatGPT Pro API REST v2026-01-15 (Private API key, Profiles/Lists/Segments/Campaigns/Flows/Events/Templates), legacy Track/Identify v1/v2 retired Jun 2024, webhooks on event/subscription, rate-limited per endpoint Security SOC 2 Type II, ISO 27001, GDPR, CCPA, SSO/SAML Enterprise, data residency US/EU Pricing (2026-09 USD, per active profile/mo, email plan; SMS billed as credit add-on)
Field Value Free **5 mobile credits (~150 SMS-equivalent), 10K Composer credits, Customer Hub basic, email support first 60 days only, Klaviyo branding on emails, no MCP, no AI agents Email 251-500 $20/mo — 5,000 sends, full feature set, no branding, chat+email support Email 501-1,000 $30/mo — 10,000 sends Email 1,501-2,500 $60/mo — 25,000 sends Email 3,501-5,000 $100/mo — 50,000 sends Email 6,501-10,000 $150/mo — 100,000 sends Email 15,001-25,000 $400/mo — 250,000 sends Email 45,001-50,000 $720/mo — 500,000 sends Email 95,001-100,000 $1,380/mo Email 200,001-250,000 $2,300/mo — above 250K → Enterprise custom Email + SMS bundles +35, 3,001-5,000 760) SMS credits 0.009-0.012/SMS US Add-ons Reviews 100/mo, Advanced KDP $500/mo, Customer Hub (service) beta-free for Shopify brands Enterprise Custom, >250K profiles, dedicated CSM, SLA, SSO, better deliverability infra; ~$2K-15K/mo typical mid-enterprise Type active-profile-metered-not-per-send-not-per-seat; auto-upgrade on threshold cross (no auto-downgrade unless toggled); starting_paid=$20; MCP included on all paid tiers (not Free) Note Feb 2025 billing change: switched from “emailed contacts” to “all active profiles” (incl. checkout-email-no-optin) → bill shocks common; suppress hard-bounces to control tier Reviews
Field Value G2 4.5/5 (~1,100+ across “Klaviyo” Marketing Automation / Email Marketing profiles, 2026) — primary B2B star; praise Shopify sync depth, Flow builder best-in-class, predictive CLV/churn actually useful, revenue attribution clear, AI Composer time-saver; gripes active-profile billing shock (Feb 2025 change), auto-upgrade-no-downgrade default, learning curve for non-marketers, support slow after 60-day free window, attribution window inflates revenue vs GA4/Shopify (Omnisend 300-review study confirms TP/G2/Capterra sentiment split) Capterra 4.5/5 (~330 verified, G2-owned Feb 2026 corpus separate) — auxiliary, aligned band; vendor-value 4.4, ease 4.3, support 4.0 Trustpilot 3.0-3.4/5 (~thin Klaviyo brand page, dominated by billing/auto-upgrade/support-rage barbell) — excluded from B2B avg (aligns Smartlead/Slack/Supabase/Framer/Motion/Todoist/Miro/XMind/Qualtrics/Feedly pattern); Omnisend study: TP pricing-complaints ~38 vs G2 ~32 vs Capterra ~48, TP support-rage ~45 vs G2 ~6 Gartner / Peer Insights Not a Gartner MQ product (email-marketing category overlaps); no Peer Insights profile of note Editorial ToolRadar 4.4, Omnisend comparative “leaving Klaviyo” 300-review study, StrategyMaven/Retainful pricing confirm, TipRanks earnings Q1’26 $358M rev +28% Praise Shopify integration is the moat (real-time cart/checkout events no other ESP matches), Flow builder + predictive segments let a 2-person team run enterprise-grade retention, Composer AI cuts campaign build from days to prompts, SMS+Email+Push+WhatsApp unified profile kills tool-sprawl, MCP server means Claude can audit flows = agentic marketing real Gripes Active-profile metering (not sent-volume) punishes large lazy lists — Feb 2025 switch doubled some bills overnight, auto-upgrade no auto-downgrade, 60-day-only email support on low tiers then community-only, attribution window too generous (overstates revenue vs GA4), learning curve steep for non-email-teams, SMS credits don’t roll over, no monthly Pro+ equivalent (annual-ish cadence on higher tiers) Review Sources Breakdown
Field Value G2.com 4.5/5 ~1,100 — primary B2B star, weight highest Capterra.com 4.5/5 ~330 — auxiliary, G2-acquired Feb 2026 corpus separate Trustpilot.com 3.0-3.4/5 thin — barbell billing/auto-upgrade/support rage, excluded from B2B avg Omnisend 300-review study directional: TP skews negative (unprompted), G2/Capterra skew positive (vendor-invited) — methodology note not a star Editorial (ToolRadar/Omnisend/StrategyMaven/Retainful/TipRanks) 4.4 band + pricing/billing-change confirm Conclusion Prints “G2 4.5 primary, Capterra 4.5 aux, Trustpilot 3.0-3.4 excluded thin, Omnisend study notes incentivized-G2/Capterra vs unprompted-TP skew” — same split-source rule as prior 41 cards Access
Field Value Web App https://app.klaviyo.com — Flow builder, segments, campaigns, dashboards, CDP, AI Composer/Customer Agent console; no desktop app, mobile app for monitoring/notifications only API REST v2026-01-15 (Private API key, revision header required): Profiles/Lists/Segments/Campaigns/Templates/Flows/Events/Custom Metrics; legacy Track/Identify v1/v2 retired; webhooks (subscription/event); rate-limited per endpoint; 1.6B API calls/day platform-wide MCP Official Klaviyo MCP server GA 2026 — distributed via Klaviyo AI app directory as “Klaviyo MCP” for Claude Desktop / Cursor / ChatGPT Pro (developer mode); tools cover profile/segment/flow/campaign read-write, Composer-invoke, approx 15-20 tools; all paid tiers (Pro $20+), NOT Free 250-plan; aligns Rezi/Miro/XMind/Supabase/Framer/GitHub/Webflow/Netlify/Cloudflare/Smartlead/Lokalise/Feedly-CTI cluster, but consumer-Free excluded (conditional-like Feedly but tier-wide not module-wide) Integrations Shopify/Woo/BigCommerce/Magento/Squarespace/Wix native; Yotpo/Okendo/Recharge/Smile/Gorgias/Zendesk; Zapier/Make; Segment/Snowflake/Fivetran; Slack (alerts); no Asana/Jira native task-sync Login Google/Microsoft SSO; workspace roles + partition admin; SSO/SAML Enterprise Self-host None — Klaviyo Cloud only, US/EU residency, no on-prem Best For
Field Value Audience 1 Shopify/Woo D2C brands ($1M-50M revenue) wanting abandon-cart/win-back flows with real-time event sync Audience 2 D2C subscription brands (Recharge/Bold) needing dunning/churn-winback automation Audience 3 Retention/CRM marketers who want predictive CLV + send-time optimization without a data scientist Audience 4 Agentic marketing teams using Claude/Cursor to audit flows + draft campaigns via MCP Audience 5 Multi-channel consumer brands unifying Email+SMS+Push+WhatsApp+RCS in one profile (kill Klaviyo+Postscript+Attentive sprawl) Not For
Field Value Exclude 1 B2B SaaS doing product-analytics/PLG activation (→ Customer.io/HubSpot, Klaviyo is B2C-commerce-shaped not event-taxonomy-agnostic) Exclude 2 Tiny newsletters / creators with <250 subs wanting plain broadcasts (→ Mailchimp free/Substack, Klaviyo overkill + active-profile metering bites) Exclude 3 Buyers refusing active-profile billing (you pay for checkout-email-no-optin until you suppress — infuriates list-hoarders) Exclude 4 Teams needing free-tier MCP / AI agents (Free 250 plan has no MCP, no Composer, no Customer Agent) Exclude 5 Brands on non-supported commerce (no native connector + unwilling to use REST Events API) Exclude 6 Pure transactional-email only (→ Postmark/SendGrid cheaper, Klaviyo is marketing+CDP not SMTP-relay) Competitors
Field Value Mailchimp (Intuit) Largest SMB email rival, cheaper at small lists, weaker Shopify event-sync, no predictive CLV depth, no MCP GA (2026) Omnisend Closest D2C Shopify rival, simpler, cheaper at 5-20K, no CDP depth, no Composer agent Postscript / Attentive / SMSBump SMS-only specialists, deeper carrier routing, no email-flow parity HubSpot Marketing Hub B2B-shaped, CRM-native, weaker commerce-event triggers, pricier per-seat Braze Enterprise cross-channel, dev-first, no Shopify-no-code Flow ease, 5-10x Klaviyo price Customer.io (in our pool) Event-taxonomy-agnostic B2B/SaaS, no built-in CDP-commerce sync, no MCP (Klaviyo has MCP, Customer.io doesn’t — reverse cluster)