Stannp Review 2026: Direct Mail as an API — Pricing, Fit, and When Paper Beats Email
Stannp is not marketing software in the usual sense. It prints and posts physical mail — postcards, letters, cheques — triggered from your systems via an API or a dashboard upload. It solves one specific problem: reaching people who no longer open your emails.
What Stannp Actually Does
Stannp is a direct-mail platform with a developer API. You send it an address and a template; it prints the item, franks it, and puts it in the postal system. There is no subscription gate and no minimum order — you pay per item dispatched, and unit costs fall as volume rises.
That model is the important part. Traditional direct mail meant a print run, a minimum quantity, and a lead time measured in weeks. Stannp makes a single postcard a programmatic event, the same way a transactional email is.
Stannp Integrations: What It Actually Connects To (2026)
Stannp's own integrations page lists four named connectors plus a REST API. Everything else reaches it through one of those — there is no deep native embed anywhere in the list, which is the single most useful thing to know before you promise anyone a one-click setup.
| Integration | How it connects | What that means in practice |
|---|---|---|
| Zapier | Official Stannp app | Stannp's own figure is 7,000+ apps reachable this way. The default route for stacks without a developer. |
| Make.com | Official Stannp module | Stannp lists 2,000+ apps via Make — the alternative if your team already standardised on Make rather than Zapier. |
| HubSpot | HubSpot's webhook action, inside a workflow | No native marketplace app. A HubSpot workflow calls Stannp and pulls contact data onto the mail piece. |
| Klaviyo | Klaviyo's webhook step, inside a flow | Same pattern as HubSpot — the flow calls Stannp, not the other way round. |
| REST API | Direct | Post an address and a template; Stannp prints, franks and posts it. The only route with full control over triggers and formats. |
| Salesforce, Mailchimp, Shopify and most CRMs | Via Zapier or Make | No native connector. Stannp documents Salesforce specifically as a Zapier recipe, not a direct integration. |
The practical test: if the tool that holds your postal addresses has a Zapier or Make connector, Stannp is reachable today with no developer time. If it does not, you are writing against the REST API — budget for that before you cost the campaign.
Integration details here come from Stannp's published integrations page and can change; confirm them against your own stack before committing.
Pricing Model
Stannp uses pay-as-you-use pricing:
- No subscription and no minimum spend — sign-up is free
- Per-item cost charged on dispatch, covering print and postage
- Volume discounts — the more you send, the lower the per-item rate
Exact per-item rates depend on format (postcard, letter, size), destination country, and your volume tier, and they change with postal rates. We are deliberately not quoting a figure here that would be stale within a quarter — check the live pricing page for your country and format before you model a campaign.
When Physical Mail Is Actually the Right Call
Re-engaging lapsed customers
If someone has ignored six emails, a seventh will not work. A physical item lands in a channel with almost no competition, which is precisely why it costs more per contact.
Regulated and formal communication
Renewal notices, policy changes, and account documents often need a postal record. An API that produces one on demand beats a manual mail-merge afternoon.
High-value B2B accounts
When the contract value is in the thousands, a per-item cost in the low single digits stops being a marketing expense and starts being a rounding error on customer acquisition cost.
Triggered follow-up
Because it is an API, mail can fire on a condition — a trial that expired, a cart abandoned above a value threshold, a customer who has not ordered in 90 days.
Direct mail is personal data processing. A postal address is personal data under GDPR, so the usual obligations apply: a lawful basis for the mailing, a suppression process for people who ask you to stop, and accurate records. Postal marketing to businesses is generally easier to justify than email under the ePrivacy rules, but "easier" is not "exempt" — see our GDPR compliance checklist before you build a list.
Pros and Cons
What works well
- True pay-per-item — no subscription, no minimum order
- Proper API, so mail can be triggered by events in your own systems
- Reaches a channel that is not saturated the way inboxes are
- Volume discounts scale sensibly as campaigns grow
Limitations to know
- Cost per contact is far higher than email — unit economics must justify it
- Slow feedback loop; you cannot iterate daily the way you can on email
- You need accurate postal addresses, which most SMB databases lack
- API integration needs developer time unless you use the dashboard upload
Who should use Stannp?
- Businesses with high customer lifetime value where a few pounds per contact is defensible
- Teams that already hold verified postal addresses — subscription boxes, insurers, property, professional services
- Developers who want to trigger mail from an existing CRM or billing workflow
- Anyone sending formal notices who currently does it by hand
Not ideal for: early-stage businesses testing messaging — use email, where iteration is free. Also a poor fit if your contact database is email-only, since address acquisition will cost more than the campaign.
Our Verdict
Stannp is a well-targeted piece of infrastructure, and the pay-per-item model with no subscription removes the usual reason small businesses avoid direct mail. Judged as what it is — a direct-mail API — it is a sound choice.
The honest caveat is that the tool is rarely the hard part. Whether direct mail works for you depends on address data quality and unit economics, both of which you should settle before signing up. Model the cost per acquisition on paper first; if it works there, Stannp is a straightforward way to execute it.
Check Stannp's Per-Item Pricing
Free sign-up, no subscription, and no minimum order to test a small run.
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