Vertical agent crew · v0 early cohort

Autonomous agents that runyour solo digital storefrontend-to-end.

Mercastra replaces the stitching — GPT prompts, Stable Diffusion runs, Canva exports, Buffer slots, Mailchimp autoresponders — with one tight crew of specialists that handle ideation, copy, visuals, distribution, capture, instant delivery, and daily KPIs as a continuous loop.

Join the waitlistSee the workflowor email mercastra@polsia.app.
~ 9 min
from brief to published SKU
6 agents
parallel crew, one queue
24–72 h
warm-list first-sale window
Crew dashboard
Live · day 284
Today's revenue
$ 1,284+ 22%
Orders
47+ 9
Refund rate
1.4 %- 0.3 pt
  1. just nowStudiorendered hero· Notion OS Pack v2 · 3 variants
  2. 1m agoListingshipped copy· Gumroad · AI Prompt Vault 49
  3. 2m agoOutpostqueued 4 pins· Pinterest · printable leads
  4. 3m agoScoutspotted upsell· Carrd × Ko-fi follow-up
  5. 4m agoAtlassent digest· $ 1,284 today · 87 visits
Next scheduled: Scout scan — 14 minall agents green
3 hero variantsper SKU · vetted · on-brand
4 storesGumroad · Etsy · Ko-fi · Carrd
1 queueapprove · nudge · ship
0 RPMsno Zapier chains to debug
The crew

Six specialists. One queue. No brittle glue.

Each agent owns one part of the storefront loop and reports into a single Approve list — the same place you already check every morning. Crew members are briefed on Gumroad, Etsy, Ko-fi, Carrd, and lightweight Google Sites pages out of the box.

  • AGENT · 01Idea triage
    Scout
    Surfaces product angles, gaps in your catalog, and the niches that convert on Gumroad this week.
    SurfaceBrief · ranked · weekly
  • AGENT · 02Visual generation
    Studio
    Renders three on-brand hero variants per SKU. Rate-aware, copyright-vetted, and Carrd-sized by default.
    SurfacePNG · layered · 1080 × 1350
  • AGENT · 03Copy & pricing
    Listing
    Drafts three hooks per listing, picks a price inside your band, and writes the FAQ buyers actually ask.
    SurfaceGumroad · Etsy · Ko-fi
  • AGENT · 04Distribution
    Outpost
    UTM-tagged posting to Pinterest and Buffer. Printables get the pins they deserve, prompt packs get the threads.
    SurfacePinterest · Buffer · Ko-fi
  • AGENT · 05Capture & delivery
    Captive
    Email capture, gated downloads, instant delivery — wired into Gumroad webhooks without a Zapier chain.
    SurfaceMail · Drive · webhook
  • AGENT · 06KPIs & refunds
    Atlas
    A six o’clock digest: revenue, refund rate, top SKU, and a queued refund-routing decision for you to approve.
    Surface6 am · daily · Slack
A typical day

From morning brief to first sale — and the digest right after.

The crew runs as one continuous loop so you spend the day approving, not switching tabs. A 500-follower warm list usually sees its first paid order inside 24 to 72 hours; Atlas then queues a 6 am digest with the refund routing already mapped.

  1. 00:00BriefScout pushes a ranked shortlist of new SKUs into the crew.1
  2. 00:03RenderStudio drafts three hero variants per pick.2
  3. 00:06ListListing uploads copy, price, and assets to Gumroad / Etsy / Ko-fi.3
  4. 00:09DistributeOutpost queues UTM-tagged pins and threads — your first buffer hit.4
  5. 24–72hFirst saleA warm ~ 500 followers typically converts inside the window.5
  6. + 1dDigestAtlas emails a revenue summary and a refund-routing decision at 6 am.6
Manual vs. agent

Six tools. One Zapier chain. Or one crew.

The traditional path knits ChatGPT, Stable Diffusion, Canva, Buffer, and Mailchimp through a free-tier Zapier or Make route — fragile, rate-limited, and yours to debug. Mercastra ships a single crew that absorbs the same surface area and respects the constraints (free-tier caps, Pinterest dominance, Etsy outperforming Gumroad on printables) that generalist autonomy tools still trip on.

Toggle the panel to feel the workload delta.

~ 9 minutes · you approve
  • IdeationScout triages — you pick from a ranked shortlist
  • Hero visualStudio renders 3 on-brand variants, vetted
  • Listing copyListing drafts 3 hooks, you approve one
  • UTM + schedulingOutpost queues to Pinterest + Buffer with tags
  • Delivery + emailCaptured emails get instant gated delivery
  • Daily KPIsAtlas sends a 6 am digest, refund route live
Stores & channels

Stores the crew already speaks.

Mercastra is built for the indie-commerce band that actually pays — Notion & prompt packs at $ 9 – $ 79 on Gumroad, printable PDFs that crush on Etsy because of Pinterest, Ko-fi memberships and mini-courses up to ~ $ 300, plus Carrd and Google Sites landing pages. The crew routes to whichever platform fits the SKU, not the other way around.

  • Gumroad
    Default
    Notion & prompt packs · $ 9 – $ 79 · the default lane.
  • Etsy
    First-class
    Printables outperform Gumroad for pure image-led SKUs.
  • Ko-fi
    First-class
    Mini-courses up to ~ $ 300 · tip jar for the long tail.
  • Pinterest
    Source
    The dominant organic source for printable traffic — pinned by Outpost.
  • Carrd · Google Sites
    Hosted
    Light landing-page builders where one product can live.
  • Mail · Buffer · Slack
    Wired
    Email capture, post scheduling, digest delivery.
Pricing

Early-cohort access, no surprise bill.

Mercastra ships cohort by cohort so the crew can stay tuned to a single storefront lane at a time. The waitlist is the only door in right now, and when you write, you’ll hear back within a couple of business days with pricing for your cohort.

We don’t publish a price card yet because we’re still learning the right shape — the waitlist is where we set that with you.

Cohort 03 — gated
Waitlist
Bringing around 40 solo digital-product operators on board this quarter. Onboarding is hands-on, in English, over email.
  • All six agents · unlimited SKUs during cohort
  • Gumroad + Etsy + Ko-fi + Carrd + Google Sites
  • Affiliate & refund routing wired in
  • Direct line to the crew operators
Direct line · mercastra@polsia.app
Request access
FAQ

What creators ask first.

A short list of the questions that come up most often — chime in at mercastra@polsia.app if yours isn’t here.

One inbox · one decision

Bring your catalog. Take the crew home.

Send a link to your Gumroad, Etsy, or Ko-fi page and the time window you’d like Mercastra to own. You’ll get back a short crew brief and an onboarding slot.

Email mercastra@polsia.appReplies within two business days.