GuestStack - Podcast Guest Pipeline CRM for Independent Podcast Hosts
Every podcast host over 10 episodes has a spreadsheet graveyard of potential guests, a Gmail folder of forgotten pitch replies, and zero idea who to follow up with this week. GuestStack is a dead-simple guest pipeline CRM built exclusively for podcasters — from cold outreach to episode live, with automated follow-up sequences and a one-click guest briefing doc generator.
Difficulty
beginner
Category
Creator Tool
Market Demand
High
Revenue Score
7/10
Platform
Web App
Vibe Code Friendly
⚡ YesHackathon Score
🏆 7/10
Validated by Real Pain
— seeded from real developer complaints
Podcast hosts on r/podcasting regularly describe losing track of guest pitches in Gmail, forgetting to follow up with interested guests, and spending 45-plus minutes researching each guest before recording — expressing that no existing tool handles the full guest pipeline workflow without requiring a custom Notion or Airtable setup that breaks at scale.
What is it?
There are over 4 million active podcasts globally, and hosts doing 2-plus episodes per week spend 3-5 hours per week on guest logistics — pitch emails, scheduling, pre-interview research, and follow-ups. No existing CRM is built for this workflow. HubSpot is overkill. Notion templates break down at 50 guests. GuestStack gives podcast hosts a Kanban pipeline (Pitching, Replied, Scheduled, Recorded, Live), automated follow-up email sequences via Resend, and a one-click guest briefing doc that pulls the guest's LinkedIn and recent Twitter/X posts into a 1-page interview prep sheet using the Exa API for web search. Why fully buildable now: Exa API for research enrichment launched in 2024 and is stable, Resend handles drip sequences easily, and the Kanban UI is a 2-hour v0 build.
Why now?
The April 2026 vibe-coding wave has produced dozens of micro-SaaS CRMs for niche audiences, and the Exa API for real-time web research enrichment is now stable and cheap enough to make a one-click briefing doc genuinely magical — this combination did not exist 18 months ago.
- ▸Kanban guest pipeline with 5 stages: Pitching, Replied, Scheduled, Recorded, Live, with drag-and-drop card management.
- ▸Automated 3-step follow-up email sequence via Resend triggered when guest card sits in Pitching stage for 7 days.
- ▸One-click guest briefing doc generator using Exa API to pull recent articles, LinkedIn bio, and Twitter/X posts into a formatted 1-page PDF.
- ▸Episode calendar view showing all scheduled recordings with guest card links and prep status.
Target Audience
Independent podcast hosts producing 2-plus episodes per week with 1k-plus listeners, estimated 200k hosts in this tier globally based on Spotify for Podcasters active show data.
Example Use Case
Priya hosts a tech interview podcast at 3 episodes per week, uses GuestStack to manage 80 active pitches, auto-sends 3-email follow-up sequences, and generates a guest briefing doc 10 minutes before each recording instead of spending 45 minutes on manual research.
User Stories
- ▸As a podcast host recording 3 episodes per week, I want a Kanban pipeline for all my guest pitches with automated follow-ups, so that I never lose a potential guest to inbox neglect.
- ▸As a solo podcaster, I want a one-click briefing doc generated from a guest's online presence, so that I walk into every interview prepared without spending 45 minutes on manual research.
- ▸As a podcast host managing 50 active pitches, I want to see all my scheduled recordings in a calendar view linked to guest prep status, so that I never double-book or under-prepare.
Acceptance Criteria
Kanban Board: done when guest cards can be dragged between all 5 stages and position persists on page reload. Briefing Doc: done when Exa API returns research and a formatted 1-page markdown doc renders in under 10 seconds for any public figure. Auto Follow-Up: done when Resend sequence is triggered automatically for guests in Pitching stage for exactly 7 days with no manual action. Free Tier Gate: done when users with 11-plus guests see an upgrade prompt and cannot add more without paid access.
Is it worth building?
$19/month x 80 hosts = $1,520 MRR at month 3. $19/month x 400 hosts = $7,600 MRR at month 9.
Unit Economics
CAC: $10 via organic podcast community posts. LTV: $228 (12 months at $19/month). Payback: under 1 month. Gross margin: 87%.
Business Model
SaaS subscription
Monetization Path
Free tier: up to 10 guests in pipeline. Paid $19/month: unlimited guests, auto follow-up sequences, briefing doc generator.
Revenue Timeline
First dollar: week 2 via beta paid tier. $1k MRR: month 3. $5k MRR: month 8. $10k MRR: month 15.
Estimated Monthly Cost
Vercel: $20, Supabase: $25, Resend: $15, Exa API: $20, Stripe fees: $10. Total: ~$90/month at launch.
Profit Potential
Strong side income at $2k-$5k MRR, full-time viable at $8k MRR.
Scalability
Medium — can add Calendly integration, episode CRM linking, and sponsorship deal tracking in V2.
Success Metrics
Week 2: 100 beta signups. Month 1: 20 paid. Month 3: 80 paid, 85% month-2 retention.
Launch & Validation Plan
Post in r/podcasting and the Podcasters Support Group Facebook Group asking how hosts manage guest outreach, collect 40 replies, DM active hosts with a Loom walkthrough of the prototype.
Customer Acquisition Strategy
First customer: DM 20 podcast hosts in the Podcast Movement Facebook Group offering 3 months free in exchange for a 20-minute Loom feedback session. Ongoing: r/podcasting weekly posts, Podcast Movement community, Indie Hackers, ProductHunt launch.
What's the competition?
Competition Level
Low
Similar Products
Podchaser is a podcast database not a CRM, Notion templates require manual maintenance and break at scale, Airtable templates exist but have no automation or enrichment — none combine pipeline, drip sequences, and AI briefing docs for podcasters.
Competitive Advantage
Only CRM with a podcast-native Kanban and AI briefing doc generation — no generic CRM competitor will build this niche workflow.
Regulatory Risks
GDPR compliance required for guest email data. Exa API web scraping results must not be stored beyond session. Data deletion endpoint required for EU users.
What's the roadmap?
Feature Roadmap
V1 (launch): Kanban pipeline, Resend drip sequences, Exa briefing doc, episode calendar. V2 (month 2-3): Calendly embed for scheduling, guest rating system, CSV import from existing spreadsheets. V3 (month 4+): sponsorship deal CRM lane, multi-host team accounts, podcast analytics integration.
Milestone Plan
Phase 1 (Week 1-2): Supabase schema, Kanban board, guest detail page, Exa briefing doc generation live. Phase 2 (Week 3-4): Resend drip sequences, Stripe billing, cron follow-up trigger, 20 beta host signups. Phase 3 (Month 2): 20 paid hosts, ProductHunt launch, r/podcasting case study post.
How do you build it?
Tech Stack
Next.js, Supabase, Resend, Exa API, Stripe — build with Lovable for full UI, Cursor for Exa enrichment logic and Resend sequences, v0 for Kanban board component
Suggested Frameworks
-
Time to Ship
2 weeks
Required Skills
Next.js, Supabase, Resend drip sequences, Exa API for enrichment.
Resources
Exa API docs, Resend sequence docs, Supabase quickstart, Next.js docs.
MVP Scope
pages/pipeline.tsx for Kanban board, pages/guest/[id].tsx for guest detail, pages/calendar.tsx for recording schedule, lib/exaEnrich.ts for briefing doc generation, lib/resendSequence.ts for follow-up drip, api/cron/followup.ts for 7-day trigger, Supabase schema for guests/pipelines/sequences tables, Stripe checkout for paid tier.
Core User Journey
Sign up -> add first guest -> drag through pipeline stages -> auto follow-up fires on day 7 -> generate briefing doc before recording -> mark episode live.
Architecture Pattern
Host adds guest -> Supabase record created -> 7-day cron checks Pitching stage -> Resend sequence triggered -> host clicks briefing doc -> Exa API fetches guest research -> PDF generated and served -> guest moves to Scheduled.
Data Model
Host has many Guests. Guest has one PipelineStage. Guest has many EmailSequenceEvents. Host has one StripeSubscription.
Integration Points
Supabase for guest and pipeline data, Resend for automated follow-up email sequences, Exa API for guest research enrichment, Stripe for subscription billing, Vercel for hosting.
V1 Scope Boundaries
V1 excludes: Calendly integration, episode analytics, sponsorship CRM, guest rating system, multi-host team accounts, mobile app.
Success Definition
A podcast host the founder has never spoken to signs up, adds 10 guests to their pipeline, receives an auto follow-up sequence, generates a briefing doc, and upgrades to paid within the free trial without any founder involvement.
Challenges
Distribution is the primary challenge — podcast hosts are fragmented across Discord servers, Facebook Groups, and Slack communities with no single dominant channel, so CAC via paid ads is prohibitively high for a $19/month product.
Avoid These Pitfalls
Do not build Calendly integration in V1 — scheduling is a rabbit hole that delays the core CRM value by weeks. Do not auto-send emails without explicit user review of the sequence copy — one spammy auto-email from your tool under a podcaster's name destroys their guest relationships and your reputation. Finding first 10 paying hosts will take longer than building; budget 3x more time on podcast community outreach than on feature polish.
Security Requirements
Supabase Auth with Google OAuth. RLS on all guest and sequence tables. Exa API results not stored beyond session. Rate limiting 60 req/min per user. GDPR: guest email deletion endpoint required.
Infrastructure Plan
Next.js on Vercel with cron jobs for follow-up trigger. Supabase for Postgres and auth. Resend for transactional and sequence emails. Sentry for errors. GitHub Actions for CI. Dev/staging/prod via Vercel preview environments.
Performance Targets
200 DAU at launch, 2,000 req/day. Kanban board load under 1.5s LCP. Exa briefing doc generation under 10s. Supabase reads under 200ms. CDN for static assets via Vercel Edge.
Go-Live Checklist
- ☐Security audit complete
- ☐Stripe billing tested end-to-end
- ☐Sentry live
- ☐Monitoring configured
- ☐Custom domain with SSL
- ☐Privacy policy covering guest email data published
- ☐5 beta podcast hosts signed off
- ☐Rollback plan documented
- ☐ProductHunt and r/podcasting launch posts drafted.
How to build it, step by step
1. Run npx create-next-app gueststack and install Supabase, Resend, Stripe, Exa SDK, and @hello-pangea/dnd for drag-and-drop. 2. Set up Supabase schema for hosts, guests, pipeline_stages, and email_events tables with RLS. 3. Build pages/pipeline.tsx as a 5-column Kanban board with drag-and-drop guest cards using v0 for the component structure. 4. Build pages/guest/[id].tsx for full guest detail view with notes, email history, and briefing doc button. 5. Build lib/exaEnrich.ts that calls Exa API with the guest name and company, parses top 5 results, and formats a 1-page briefing markdown doc. 6. Build lib/resendSequence.ts that creates a 3-email drip sequence template for each new guest added. 7. Build api/cron/followup.ts as a Vercel cron that fires daily, checks for guests in Pitching stage for 7 days, and triggers Resend sequence. 8. Implement Stripe checkout for $19/month paid tier with usage gate at 10 free guests. 9. Build pages/calendar.tsx showing scheduled recording dates pulled from guests with Scheduled status. 10. Deploy to Vercel, configure Resend domain, seed with 5 demo guests, and post Loom walkthrough in r/podcasting.
Generated
April 15, 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.