Yupno
No-login RSVP tool with REST API and webhooks
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Hi HN,I got tired of having to register and having friends having to register accounts just for accepting a party or dinner invitation (also plenty of friends have left social media) so I coded a minimal, no-login event tool: https://yupno.comDev-friendly stuff: Full REST API, async webhooks for RSVPs with Slack/Discord-adapted payloads. Auto-generates Ical, JSCalendar and JSON-LD. No auth, uses admin/user tokens in url. Should be possible connect to other stuff in fun ways.Free to use, no ads, no tracking. I just wanted a simple tool that respects my time and privacy. Might figure out some way to monetize it if it gets traction, perhaps Stripe integration for tickets to events or something.Docs/API details: https://yupno.io/docs.html
HN · launched Jan 22, 2026 · 5 upvotes (top 90%) · 0 views
Niche: event management and ticketing software · 117 launches, 14 in the last 7 days ▲ +8% · Explore this niche →
Category and tags
- Horizontal
- Workflow automation
- B2B
- Not AI
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 117 launches in event management and ticketing software →
Could you build this?
Yes It is a straightforward CRUD RSVP tool featuring public/tokenized URLs, a simple SQLite/Postgres backend, REST endpoints, and webhook dispatches.
Discussion
1 comment analyzed.
Competitors
Other products that read as similar to this one : 136 launches clear the similarity bar, closest 8 shown.
Attention rank: #134 of 137 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 68 days after the earliest competitor.
- Hootenanny · ph · 2026-09-10 · 2 upvotes · similarity 0.44
- Pybly · ph · 2026-09-10 · 2 upvotes · similarity 0.42
- Jevdit · hn · 2026-09-27 · 11 upvotes · similarity 0.42
- SnapInvites · ph · 2026-11-12 · 2 upvotes · similarity 0.41
- An old school forum on an open protocol · hn · 2026-09-30 · 17 upvotes · similarity 0.41
- Anonymous age verification with passkey-powered encryption · hn · 2026-08-19 · 45 upvotes · similarity 0.40
- Inviteme: Digital Event Invitations · ph · 2026-09-30 · 1 upvotes · similarity 0.40
- VowForever Online Invitation Maker · ph · 2026-11-07 · 4 upvotes · similarity 0.39
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