Marketing Automation · Integration

beehiiv

Add beehiiv to your product for your customers, and give your AI agents governed access to it.

beehiiv is a newsletter platform where the publication is the unit everything hangs from, so an integration works one publication at a time: its subscriptions, its posts, its segments and its stats. Subscriptions are the object people actually integrate, and they carry more than an email address, since a subscriber has a status, a source, custom fields the writer defined, and on paid newsletters a tier that decides what they are allowed to read. Posts can be created, scheduled and published, and the numbers come back afterwards at both the post level and the individual level, which is what lets a product act on somebody who never opens anything. Automations can be started for a subscriber directly, so a signup in your product can begin a welcome sequence the writer built. fastn keeps each publication's key per tenant and follows the API as it moves.

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In your product

Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.

Let each writer connect their own publication so signups in your product become subscriptions in theirs.

Create a subscription with the custom fields and tier that publication uses, and update it when the reader's status changes.

Publish or schedule a post from your product so an issue goes out without anybody opening the beehiiv editor.

Read open and click stats back per post and per subscriber, so your product can act on the people who never engage.

For your AI agents

Governed, audited access for the agents you build, through the MCP server.

An agent reports how the last few issues performed and which subject lines did better than the average.

An agent finds subscribers who have not opened anything in months and drafts a re-engagement send.

An agent enrols a new subscriber in the right automation within scoped permissions, with the action logged.

Example prompt

Which of our last five beehiiv issues had the best click rate, and who upgraded to a paid tier after reading one?

Set up beehiiv in 4 steps

  1. 01Enable the beehiiv connector in your fastn dashboard.
  2. 02Have each customer authorise their own publication, so sends and stats stay inside their account.
  3. 03Map the subscription fields and tiers your product writes, then choose which post events you react to.
  4. 04Call it from your product and expose the same governed connection to your agents.

Why teams use the beehiiv integration

What you get by embedding it with fastn instead of building it yourself.

  • Ship a beehiiv integration without building it. Your customers connect their own beehiiv account inside your product and work their campaigns, segments and subscribers there, with no per-customer code on your side.
  • Handle the part that actually costs time: engagement data arrives as a high-volume event stream, so ordering and deduplication matter. fastn owns the auth, token refresh, rate limits, pagination and breaking-change fixes, so a beehiiv update is not your on-call problem.
  • One integration serves your product and your agents. The same governed beehiiv connection powers in-product features and gives AI agents scoped, audited access, so you trigger and measure campaigns from inside your product without wiring it twice.

Used by these teams

SalesMarketing

Compare with

MailchimpKlaviyoCampaign Monitor

Often used alongside

Tools the same teams tend to run next to beehiiv, across other categories.

SalesforceHubSpotPipedriveZoho CRM

beehiiv integration FAQ

How do I add a beehiiv integration to my product?

Enable the beehiiv connector in your fastn dashboard, then let each customer authenticate their own beehiiv account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no beehiiv client code in your app and no per-customer branch in your codebase. Setup is 4 steps.

Do my customers each connect their own beehiiv account?

Yes. Every connection is scoped to the individual customer, so each authorises their own beehiiv account and only ever sees their own campaigns, segments and subscribers. That per-tenant isolation is the point of an embedded integration: you support the long tail of customer setups without maintaining an integration per customer.

Can AI agents use this beehiiv integration?

Yes. The same connection is exposed to your agents through the fastn MCP gateway, with permissions scoped per tenant and every call audited. An agent reports how the last few issues performed and which subject lines did better than the average.

Who maintains the beehiiv integration?

fastn does. When beehiiv changes an endpoint, deprecates a field or alters its auth, the fix lands in the connector rather than in your backlog, and your customers' connections keep working.

Can I trigger a beehiiv campaign from an event in my product?

Yes. Product events can start a campaign, add a contact to a segment, or enrol someone in a journey, so lifecycle messaging follows what a user actually did rather than a nightly export.

Can I read engagement results back from beehiiv?

Yes. Results come back scoped per tenant, so your product can act on them without one customer's data mixing with another's. What you get depends on the channel: opens, clicks, bounces and unsubscribes where there are sends, and impressions, spend and conversions where there are campaigns.

What can I build with the beehiiv integration?

A common starting point: let each writer connect their own publication so signups in your product become subscriptions in theirs. Teams also use it for the other use cases listed above, and expose it to agents for governed reads and writes.

How much does the beehiiv integration cost?

It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding beehiiv does not change your per-connector cost. You can start free with 3 connected accounts.

Add beehiiv to your product

Start free with 3 connected accounts. No sales call required, and no per-customer integration code.

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