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API Terms/Marketing
Category

Marketing APIs

43 Marketing APIs with verified auth, pricing and rate limits. 32 offer a free tier; 14 document an MCP server. Every field carries the source URL that states it.

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APICategoryAuthPricingFree tierLimitsOpenAPIMCPChecked
RankParserankparse.comMarketingAPI keyusage based✓✓✓✓2026-08-17
WhereParcelwhereparcel.comMarketingAPI keyfreemium✓✓✓n/d2026-07-12
Customer.io APIcustomer.ioMarketingotherpaid✓n/dn/d✓2026-07-26
Drip APIdrip.comMarketingAPI keyusage based✓✓n/dn/d2026-07-16
Mixpanel APImixpanel.comMarketingotherfreemium✓n/dn/d✓2026-07-26
PostHog APIposthog.comMarketingAPI keyusage based✓n/dn/d✓2026-07-13
Amplitude APIamplitude.comMarketingAPI keyfreemium✓n/dn/d✓2026-07-13
ClickMeter API (now Rebrandly)clickmeter.comMarketingAPI keyfreemium✓n/dn/d✓2026-07-12
HubSpot APIhubspot.comMarketingOAuth 2.0freemium✓✓n/dn/d2026-07-12
Klaviyo APIklaviyo.comMarketingn/dfreemium✓n/d✓✓2026-07-16
Metabasemetabase.comMarketingAPI keyfreemium✓n/dn/d✓2026-07-08
Simple Analyticssimpleanalytics.comMarketingAPI keyfreemium✓n/dn/dn/d2026-07-26
ActiveCampaign APIactivecampaign.comMarketingn/dpaid✓n/dn/d✓2026-07-26
Braze APIbraze.comMarketingn/dcontact sales✓n/dn/d✓2026-07-26
Kit (ConvertKit) APIconvertkit.comMarketingn/dfreemium✓n/dn/d✓2026-07-26
Fullstory APIfullstory.comMarketingn/dfreemium✓n/dn/d✓2026-07-26
Hotjar APIhotjar.comMarketingn/dfreemium✓n/dn/d✓2026-07-26
Postmonpostmon.com.brMarketingno authfree✓n/dn/dn/d2026-07-12
AfterShipaftership.comMarketingn/dfreemium✓n/dn/dn/d2026-07-26
bluedoorbluedoor.shMarketingn/dfree✓n/dn/dn/d2026-07-27
Brevo APIbrevo.comMarketingn/dfreemium✓n/dn/dn/d2026-07-26
Constant Contact APIconstantcontact.comMarketingn/dfreemium✓n/dn/dn/d2026-07-26
Countlycount.lyMarketingn/dfreemium✓n/dn/dn/d2026-07-26
GetResponse APIgetresponse.comMarketingn/dfreemium✓n/dn/dn/d2026-07-26
Heap APIheap.ioMarketingn/dfreemium✓n/dn/dn/d2026-07-26
Keen IOkeen.ioMarketingn/dpaid✓n/dn/dn/d2026-07-26
Segment API (Twilio Segment)segment.comMarketingn/dfreemium✓n/dn/dn/d2026-07-26
SheerSEO APIsheerseo.comMarketingn/dfreemium✓n/dn/dn/d2026-07-26
TSAPItsapi.netMarketingn/dfree✓n/dn/dn/d2026-07-12
WeCanTrackwecantrack.comMarketingn/dusage based✓n/dn/dn/d2026-07-26
WhatPulsewhatpulse.orgMarketingn/dfreemium✓n/dn/dn/d2026-07-26
Marketo Engage APImarketo.comMarketingn/dcontact salesn/dn/dn/d✓2026-07-26
PitchAgentpitchagent.comMarketingn/dfree✓n/dn/dn/d2026-08-03
Adobe Experience Manager (AEM) APIadobe.comMarketingn/dcontact salesn/dn/dn/dn/d2026-07-26
Botify APIbotify.comMarketingn/dcontact salesn/dn/dn/dn/d2026-07-26
Correioscorreios.com.brMarketingn/dn/dn/dn/dn/dn/d2026-07-12
Custom Behavioral Events APIhubapi.comMarketingn/dn/dn/dn/dn/dn/d2026-07-12
Iterable APIiterable.comMarketingn/dn/dn/dn/dn/dn/d2026-07-16
Jirafe Eventsjirafe.comMarketingn/dn/dn/dn/dn/dn/d2026-07-26
Native Ads Publisher APInativeads.comMarketingn/dn/dn/dn/dn/dn/d2026-07-12
Pixelapixe.laMarketingn/dn/dn/dn/dn/dn/d2026-07-12
PostNordpostnord.comMarketingn/dn/dn/dn/dn/dn/d2026-07-26
Vestorly APIvestorly.comMarketingn/dn/dn/dn/dn/dn/d2026-07-12