Every viewer. Their offer.
WebinarStack is the only webinar platform built around a single question: what does this person actually need to convert? Six features, one outcome.
The same webinar pitches a different offer to a different person.
A poll mid-webinar isn't a survey. It's a routing decision. The viewer who picks “ready to scale” sees your $997 offer. The viewer who picks “just exploring” sees your $37 starter.
Every signal — answers, behavior, watch time — narrows the offer until it's the one most likely to convert this person.
Set it up once. Personalize forever.
One webinar, many paths. Each viewer follows the journey their answers earn them — with its own pacing, its own follow-up, and its own offer endpoint.
The branching engine is visual, version-controlled, and replayable. Tweak a path today; the next attendee gets the new flow without re-recording a single second.
- Visual branch editor
- Version-pinned paths per cohort
- Per-branch analytics
- Conditional re-routing mid-webinar
Pre-recorded webinar.
Live human support.
Your customer success team answers attendees in real time — from inside the Slack they already use. The viewer feels like a host is on the line. Your team feels like they're doing inbox triage.
[14:32:08] attendee.watched_pct=87 → tag:hot-lead[14:32:08] attendee.watched_pct=87 → POST /webhook/crm[14:33:14] poll.budget=high → email:premium-followup[14:34:02] attendee.click=cta-pro → tag:intent:pro[14:36:41] attendee.left_at=12:04 → email:come-back[14:38:29] quiz.score>=8 → POST /webhook/zapier[14:39:44] attendee.scroll=pricing → tag:warm[14:41:12] attendee.replay_at=05:12 → email:resume-watch[14:42:10] attendee.completed=true → sequence:nurture-4w
Behavior is the rule. Action is the reward.
Watched 87%? Tag them hot. Picked the high-budget answer? Send the premium follow-up. Left at minute 12? Send the come-back email. Every action runs through Inngest with retry, replay, and observability built in.
Your visitor doesn't wait. Neither does your webinar.
Scheduled webinars lose 60% of registrants between sign-up and showtime. Just-in-Time delivery starts the moment a visitor lands — no waiting, no calendar anxiety, no second-guessing.
The viewer feels the urgency of live. You get the flexibility of pre-recorded.
An open API. And an MCP server, too.
Every feature in WebinarStack is reachable from a single, versioned REST API. Webhooks. Registrations. Branches. Triggers. Everything.
And because we ship a native MCP server, your AI tools — Claude, GPT, Cursor — can read, write, and orchestrate webinars directly. No bridge code. No glue scripts.
curl -X POST https://api.webinarstack.co/v1/webinars/wbn_8a/registrants \
-H "Authorization: Bearer ws_live_..." \
-H "Content-Type: application/json" \
-d '{
"email": "ada@example.com",
"first_name": "Ada",
"tags": ["partner-lp", "q2-launch"]
}'{
"id": "reg_4f9c2b",
"join_url": "https://join.webinarstack.co/r/4f9c2b",
"session_at": "2026-04-29T14:30:00Z",
"branch": "auto-routed"
}Talk to your webinar.
In plain English.
Drop the WebinarStack MCP server into Claude (claude.ai), ChatGPT, or Cursor and just ask. Add automations. Pull analytics. Re-route attendees.
No dashboard hunting. No copy-paste. The AI you already use becomes the fastest way to operate your webinar.
Set the schedule once. Run it forever.
Pick the days and the hours. Pin a timezone. Add blackout dates for the weeks you're away. Sessions get computed on the fly — your calendar isn't a database to maintain, it's a rule the platform follows.
Edit the rule today; tomorrow's attendees register against the new schedule automatically. No re-creating sessions. No spreadsheet maintenance.
- Weekly, daily, or fully custom recurrence
- Host timezone respected — attendees see their local time
- Blackout dates for holidays + planned outages
- Sessions computed lazily — never stale, never bloated
Know which webinar made the money.
Connect Stripe and every purchase ties itself back to the attendee who made it, the webinar they watched, and the offer that converted them. No spreadsheets, no UTM gymnastics, no guessing which funnel did the work.
Refunds and chargebacks net out automatically. ROI per webinar isn't a quarterly export — it's a number on your dashboard.
The rest of the platform.
Everything you'd expect from a serious webinar platform — registration, analytics, embeds, isolation, deliverability — quietly engineered to disappear behind the things you actually came here for.
<script> on any landing page.What other webinar tools don't do.
Most webinar software was built before behavior-driven automation was possible. Here's what changes when it's built in from day one.
| Capability | Other tools | WebinarStack |
|---|---|---|
| Smart Offers (per-viewer) | ||
| Live Slack chat → CS team replies in real time | ||
| Branching webinar paths | ||
| Behavioral triggers (email / webhook / tag) | ||
| Just-in-Time delivery | ||
| Recurring schedules with timezone + blackouts | partial | |
| Stripe revenue attribution per attendee | ||
| MCP / native AI tools | ||
| Open REST API | partial | |
| Multi-tenant Row Level Security | ||
| Watch-time analytics | ||
| Embeddable widget | partial |
Built for selling. Not just streaming.
Run your first adaptive webinar in under an hour. 14-day free trial. No credit card required.