DeckCast — Paste Your Pitch Deck, Get a 3-Minute Investor Podcast Episode in 90 Seconds
Investors skim 30 decks before breakfast and remember zero of them. DeckCast turns your pitch deck into a narrated audio story with chapter markers, a transcript, and a shareable Spotify-ready episode link — the format investors actually finish during their commute.
Difficulty
beginner
Category
Creator Tool
Market Demand
High
Revenue Score
7/10
Platform
Web App
Vibe Code Friendly
No
Hackathon Score
🏆 8/10
What is it?
Founders spend 40 hours perfecting a slide deck that a VC partner speed-reads in 4 minutes while checking email. Audio is the underused format: investors listen to podcasts during commutes, workouts, and flights, but no tool makes it trivial to convert a pitch into a polished audio story. DeckCast takes a PDF deck, extracts the narrative arc using Claude, generates a structured script, and voices it with ElevenLabs — outputting an MP3 with chapter markers and a shareable landing page with transcript. Founders get a unique link to share in cold emails alongside the PDF. Buildable in 2 weeks: Next.js, Claude API for script generation, ElevenLabs for TTS, Supabase for storage, and a static shareable player page per episode.
Why now?
ElevenLabs API dropped latency and price in Q1 2026, making real-time TTS narration at $19-per-episode margins viable for the first time — and investor inbox competition in the May 2026 fundraising season makes audio differentiation genuinely compelling.
- ▸PDF deck parser that extracts slide text and speaker notes ordered by narrative arc (Implementation note: pdf-parse npm library with Claude structuring)
- ▸Claude script generator that turns deck content into a 3-minute investor podcast script with hook, problem, solution, traction, ask
- ▸ElevenLabs TTS narration with chapter markers per deck section exported as MP3 with ID3 tags
- ▸Shareable player page with embedded audio, transcript, and chapter navigation hosted on a unique URL
Target Audience
Pre-seed and seed founders doing investor outreach — estimated 200k active fundraising decks circulating globally at any time.
Example Use Case
James uploads his SaaS pitch deck on Sunday night, shares the DeckCast link in 12 cold VC emails Monday morning, gets 4 replies asking to meet — his reply rate triples compared to the PDF-only cold email he sent last month.
User Stories
- ▸As a pre-seed founder, I want to convert my pitch deck PDF into a narrated audio episode in under 2 minutes, so that investors can listen during their commute instead of skimming my slides.
- ▸As a founder doing cold VC outreach, I want a shareable player URL to include in my cold email, so that my pitch stands out from the 30 PDF attachments in an investor inbox.
- ▸As a repeat fundraiser, I want an unlimited monthly subscription, so that I can generate a tailored episode for each investor tier without paying per episode.
Done When
- ✓Deck Upload: done when user drags a PDF onto the upload zone and sees a processing spinner appear within 2 seconds of drop.
- ✓Episode Generation: done when narrated MP3 with at least 4 chapter markers is ready and player URL is displayed within 90 seconds of upload.
- ✓Public Player Page: done when shareable URL opens in incognito browser and audio plays with chapter navigation and full transcript visible without login.
- ✓Stripe Payment: done when user clicks remove watermark, completes $19 Stripe checkout, and player page reloads without DeckCast watermark branding.
Is it worth building?
$19 x 200 one-time purchases/month = $3.8k MRR equivalent. $49/month x 50 subscribers = $2.4k MRR. Combined $6k+ at month 3 with 5% conversion from ProductHunt launch traffic.
Unit Economics
CAC: $5 via Twitter/X organic demo posts. LTV: $147 (3 fundraising cycles at $49/month for 1 month each). Payback: immediate on $19 one-time. Gross margin: 78%.
Business Model
Pay-per-episode $19, or $49/month unlimited
Monetization Path
Free tier generates 1 episode with DeckCast watermark, paid removes watermark and unlocks custom voice and chapter editing.
Revenue Timeline
First dollar: week 2 via first paid episode. $1k MRR: month 2. $5k MRR: month 5.
Estimated Monthly Cost
Claude API: $20, ElevenLabs API: $40 (based on 200 episodes/month), Supabase: $25, Vercel: $20, Stripe fees: $15. Total: ~$120/month at launch.
Profit Potential
$5k-$10k MRR viable, very low churn on subscription tier due to ongoing fundraising cycles.
Scalability
High — add team plans for agencies, custom voice cloning, branded player pages, and analytics on listen-through rate.
Success Metrics
Week 2: 50 free episodes generated. Month 1: 30 paid episodes or 10 subscribers. Month 3: 80 paid conversions/month.
Launch & Validation Plan
Post a demo episode converted from a famous public YC pitch deck on Twitter/X and r/startups, measure organic shares before building.
Customer Acquisition Strategy
First customer: post the Airbnb 2009 deck converted to audio on Twitter/X tagging startup community accounts — let the demo do the selling. Ongoing: ProductHunt launch, cold outreach to YC and Techstars alumni Slack groups, r/startups, FounderSpace communities.
What's the competition?
Competition Level
Low
Similar Products
Murf.ai (generic TTS, no deck parsing), Pitch.com (visual deck sharing, no audio), Descript (audio editing, no deck-to-script). Gap: none automate the full deck-to-narrated-episode pipeline in one click.
Competitive Advantage
Only tool that combines deck-to-script AI with professional TTS narration and a shareable player page in a single $19 workflow.
Regulatory Risks
Low regulatory risk. ElevenLabs terms require disclosure that audio is AI-generated — add footer to player page. No financial advice liability as tool only narrates founder-provided content.
What's the roadmap?
Feature Roadmap
V1 (launch): PDF parse, Claude script, ElevenLabs narration, shareable player, Stripe checkout. V2 (month 2-3): custom voice selection, chapter edit before narration. V3 (month 4+): listen-through analytics, branded player pages, Spotify RSS publishing.
Milestone Plan
Phase 1 (Week 1-2): full generation pipeline working end-to-end with public player URL. Phase 2 (Week 3-4): Stripe payment, watermark logic, Resend email delivery, 20 beta users. Phase 3 (Month 2): 80 paid episodes sold, chapter editing UI shipped.
How do you build it?
Tech Stack
Next.js, Claude API, ElevenLabs TTS API, Supabase Storage, Stripe, Resend — build with Lovable for UI, Cursor for API routes, v0 for player page component
Suggested Frameworks
-
Time to Ship
2 weeks
Required Skills
Next.js, Claude API, ElevenLabs API, Supabase Storage, Stripe one-time payment.
Resources
ElevenLabs API docs, Claude API docs, pdf-parse npm library, Supabase Storage quickstart.
MVP Scope
app/page.tsx (landing + upload UI), app/api/parse/route.ts (PDF text extraction with pdf-parse), app/api/script/route.ts (Claude script generator), app/api/narrate/route.ts (ElevenLabs TTS with chapter markers), app/api/publish/route.ts (Supabase Storage upload + shareable URL generation), app/episode/[id]/page.tsx (public player page with transcript), lib/db/schema.ts (episodes schema), .env.example (Claude, ElevenLabs, Supabase keys), seed.ts (demo episode pre-loaded)
Core User Journey
Upload deck PDF -> receive narrated episode URL in 90 seconds -> share link in investor cold email -> pay to remove watermark.
Architecture Pattern
User uploads PDF -> pdf-parse extracts text -> Claude generates 3-minute script with chapters -> ElevenLabs narrates each chapter -> MP3 assembled with chapter markers -> uploaded to Supabase Storage -> unique player URL generated -> email with link sent via Resend.
Data Model
User has many Episodes. Episode has one Script, one AudioFile stored in Supabase Storage, and many Chapters. Episode has one PublicPlayerPage at unique URL.
Integration Points
pdf-parse for PDF text extraction, Claude API for script generation, ElevenLabs TTS API for narration, Supabase Storage for MP3 hosting, Stripe for one-time payment and subscription, Resend for episode delivery email.
V1 Scope Boundaries
V1 excludes: custom voice cloning, branded player pages, team accounts, listen-through analytics, mobile app, Spotify or Apple Podcasts direct publishing.
Success Definition
A founder finds DeckCast via Twitter, uploads their real deck, pays $19, shares the link in a cold VC email, and comes back to generate a second episode for a different investor tier.
Challenges
ElevenLabs API costs scale with audio length and voice quality — at $0.30 per 1k characters, a 3-minute episode costs ~$0.90 in TTS alone, which compresses margin on the $19 tier. Must enforce strict script length limits in V1.
Avoid These Pitfalls
Do not allow uploads over 50 slides or Claude context costs spiral — enforce a 30-slide limit in V1. Do not generate audio longer than 4 minutes or ElevenLabs costs kill the $19 price point. Do not build custom audio player from scratch — use a pre-built React audio component.
Security Requirements
Supabase Auth with Google OAuth optional (allow anonymous episode generation for V1 trial), Supabase Storage bucket private with signed URLs for watermarked episodes, public bucket for paid episodes, rate limiting 10 episodes/day per IP.
Infrastructure Plan
Vercel for Next.js app and API routes, Supabase for Postgres and Storage, Sentry for error tracking, GitHub Actions for CI. Total: ~$120/month at launch.
Performance Targets
500 DAU at launch post-ProductHunt, 100 episode generations/day. Generation pipeline under 90 seconds end-to-end. Player page under 1.5s LCP. Supabase Storage CDN for MP3 streaming.
Go-Live Checklist
- ☐Security audit complete.
- ☐Stripe payment tested end-to-end.
- ☐Sentry error tracking live.
- ☐Vercel monitoring configured.
- ☐Custom domain with SSL set up.
- ☐AI-generated audio disclosure on player page published.
- ☐Privacy policy published.
- ☐10 beta founders signed off on episode quality.
- ☐Twitter/X demo post and ProductHunt submission drafted.
First Run Experience
On first run: landing page shows a pre-generated demo episode from a famous public startup deck with fully functional player, chapter markers, and transcript. User can immediately: listen to the full demo episode and click Upload Your Deck to start without creating an account. No manual config required: demo episode loads from Supabase Storage with no env vars needed for the player page.
How to build it, step by step
1. Define Supabase schema: users, episodes, chapters, audio_files tables with Supabase Storage bucket for MP3s. 2. Build PDF upload UI in Next.js with drag-and-drop and 30-slide limit validation. 3. Build /api/parse route using pdf-parse to extract slide text ordered by page number. 4. Build /api/script route calling Claude API to generate a 600-word 3-minute investor script with 5 chapter markers. 5. Build /api/narrate route calling ElevenLabs with script segments per chapter, concatenate MP3 output. 6. Upload assembled MP3 to Supabase Storage, generate public URL, store episode record in Postgres. 7. Build dynamic /episode/[id] player page with HTML audio element, chapter jump buttons, and auto-generated transcript. 8. Add Stripe checkout for $19 one-time (watermark removal) and $49/month subscription. 9. Wire Resend to send player link email immediately after episode generation completes. 10. Verify: upload a real 10-slide PDF, confirm episode generates in under 90 seconds, open player URL in incognito, confirm audio plays with chapter markers and transcript visible.
Generated
May 24, 2026
Model
claude-sonnet-4-6
Disclaimer: Ideas on this site are AI-generated and may contain inaccuracies. Revenue estimates, market demand figures, and financial projections are illustrative assumptions only — not financial advice. Do your own research before making any business or investment decisions. Technology availability, pricing, and market conditions change rapidly; always verify details independently.