Sendloop Integrations: Native, Zapier, and API
Sendloop names 12 native integrations, of which only 5 still have a dedicated landing page in the sitemap. Everything else routes through Zapier: Sendloop’s copy claims 1,000+ integrations while Zapier’s own listing puts the reachable catalogue at 9,000+ apps, the vendor figure is stale, not inflated. The Zapier app itself is narrow, exposing 4 triggers and 2 actions, all subscriber-level. Direct API work is possible against the v3 HTTP API, but the developer docs URL referenced by Sendloop’s own SDK returns HTTP 404, so the count of documented API integrations is 0.
Read the directory with that in mind. The connector list, the Zapier app and the SDKs all predate the blog going silent on May 26, 2023. If you need a connector that does more than add or remove a subscriber, you are either building against an undocumented API or choosing a more actively maintained ESP-EmailOctopus, MailerLite, Sender or Moosend.
help.sendloop.com resolves only to the IPv6 discard address 100:: and its Notion replacement renders blank, so no working setup documentation exists for any connector below. Test end to end before you depend on one.
At a glance
Integrations directory
The 30 entries below come from Sendloop’s integrations page, its features page, the official Zapier listing and the third-party toolkits wrapping the API. A card pointing at the generic integrations index means no per-connector page exists, a signal in itself.
Automation & agent platforms (4)
Sendloop’s primary integration surface, exposing 4 triggers and 2 subscriber actions to Zapier’s 9,000+ app catalogue.
Third-party agent platform wrapping the Sendloop API as five read-only tools exposed over MCP.
Third-party workflow platform listing Sendloop as a connectable app for custom API workflows.
Outbound webhooks are a Pro-plan feature; no public payload schema is published.
Lead capture & forms (8)
Popup and opt-in form builder writing captured leads directly into Sendloop lists.
AI-assisted popup and website widget builder connected to Sendloop subscriber lists.
Website popup and embedded form tool that syncs collected contacts to Sendloop.
Opt-in form and widget builder that feeds signups into Sendloop lists.
Embeddable widgets collecting subscriber details straight into Sendloop lists.
Lead-capture popup builder that forwards signups to Sendloop via Zapier.
Sends Typeform respondents into Sendloop subscriber lists.
Routes Unbounce landing-page form submissions to Sendloop lists.
List hygiene & deliverability (5)
Octeth’s own list verification service, used to scrub Sendloop lists before sending.
Bulk and real-time address validation to reduce Sendloop bounce rates.
Email verification service used to clean Sendloop lists prior to campaign sends.
Email verification service connected to Sendloop lists through Zapier.
Inbox placement and deliverability monitoring wired to Sendloop campaign events.
CRM, commerce & payments (7)
Sendloop’s own Shopify app, announced on the blog in the pre-2018 app-store era.
Syncs Shopify customers and order events into Sendloop lists for e-commerce campaigns.
Adds Stripe customers to Sendloop lists when payments or subscriptions are created.
Moves Salesforce leads and contacts into Sendloop subscriber lists.
Pushes Pipedrive pipeline contacts into Sendloop for nurture campaigns.
Lead scoring and website-visit tracking layered on Sendloop subscriber activity.
Product recommendation engine whose segments can be pushed into Sendloop.
Neither Shopify path is modern and neither exposes live cart state, so abandoned-cart flows are out of reach. There is no product-catalogue sync, no documented revenue attribution and no CRM connector that writes engagement back into the source system.
Email design & content (3)
Third-party drag-and-drop template builder whose designs push into Sendloop campaigns.
Converts PSD email designs into HTML templates ready to import into Sendloop.
Translates Sendloop email content for multi-language campaigns.
Ads, support & communication (3)
Pulls leads captured by Facebook Lead Ads into Sendloop lists; named on the features page.
Connects Help Scout mailbox activity to Sendloop subscriber records.
Posts Sendloop campaign and subscriber events into Slack channels.
Frequently asked questions
What integrations does Sendloop support?
12 native connectors, concentrated in lead capture (OptinMonster, Poper, Poptin, Optingun, Lead Generation Widgets), list hygiene (Cleanify, QuickEmailVerification, Bounceless) and email design (Stripo, Email Slicer, Translation Exchange), plus SalesWings and Facebook Lead Ads. Everything else is a Zapier connection, and only 5 of the natives still have a landing page behind them.
Does Sendloop integrate with Shopify?
Two ways, both with caveats. Sendloop’s own Shopify app, Sendloop Marketer, was announced in the pre-2018 app-store era and has no current product page. The practical route is Zapier, creating a subscriber from a customer or order event. Neither path exposes live cart state, so abandoned-cart automation is out of reach; compare Omnisend or MailerLite if that matters.
How do I connect Sendloop to Zapier?
Authenticate the Sendloop app on Zapier, then build Zaps against the 4 triggers. New Subscriber, New Unsubscriber, New Email Open, New Hard Bounce, and the 2 actions, Add Subscriber and Remove Subscriber. Those six operations are the entire surface: no action sends a campaign, and there is no trigger for clicks, complaints or soft bounces. Zapier files Sendloop under “Transactional Email”, a legacy classification from the 2016 gateway era, not evidence of a transactional product today.
Does Sendloop have a WordPress plugin?
No WordPress plugin appears on Sendloop’s integrations page, features page or sitemap, and none is maintained in the Octeth GitHub organisation, every Sendloop repository there carries a “legacy” prefix and was last touched between 2013 and 2017. Connect WordPress through a popup tool with its own Sendloop connector, such as OptinMonster or Poptin, or through Zapier via a form plugin’s webhook. A WordPress SMTP plugin cannot be pointed at Sendloop: no hostname is published, and smtp.sendloop.com resolves only because *.sendloop.com is a wildcard aimed at the web app load balancer.
Can Sendloop sync with Salesforce or HubSpot?
Salesforce and Pipedrive connect through Zapier, moving leads and contacts into Sendloop lists in one direction only, no write-back of engagement into the CRM is documented. HubSpot is not named on any current Sendloop page, so a HubSpot link means a custom Zap or a direct API build. With no public endpoint catalogue, treat a custom CRM sync as a reverse-engineering project.
How do I connect a form builder like Typeform to Sendloop?
Typeform, Unbounce and Mailmunch reach Sendloop through Zapier: trigger on the submission, then run the Add Subscriber action against a chosen list. For a first-party path, use a native form tool. OptinMonster, Poptin, Poper or Optingun, which writes into Sendloop lists without a Zap. Either way, verify custom-field mapping on a test submission: no field-mapping reference is published.
This review follows our email infrastructure testing methodology. We disclose affiliate relationships in our editorial independence policy.
