AI-powered RSVP & event coordination

Event Types We Support

MustardSMS is your AI text teammate. It answers participant questions, analyzes sentiment, predicts engagement, and collects RSVPs by text.

Yes, I'll be there! Can I bring a plus-one?

AI · logged as Yes +1 Got it, marking you and your guest down as attending. See you there!

Actually I have a nut allergy, is that ok to flag?

AI · dietary flag added Noted and added to your RSVP. The organizer will see it in their dashboard.

Know who's coming without chasing people

Three simple steps to stress-free RSVP management.

1
Invite participants by text

No apps or logins required.
2
Participants reply naturally

Yes, No, +1s, and dietaries are captured automatically.
3
AI handles the rest

Real-time counts, sentiment tracking, and smart follow-ups.

What you manage

AI intelligence suite

Core AI features are available on every plan. Advanced analytics and optimization unlock with higher tiers.

AI Persona Selector

Choose your assistant's personality. From casual host to formal coordinator, your AI matches your event's vibe.
Sentiment Analysis

Understand how your participants are feeling. AI detects excitement, confusion, or concerns in real-time conversations.
Participant Segmentation

Automatically group participants by response patterns, engagement level, and dietary preferences for targeted outreach.
Predictive Insights

Forecast attendance rates and identify participants at risk of dropping off before they do.
Adaptive Templates

Templates that learn from response rates. A/B testing and performance scoring optimize every message automatically.

RSVPs update live. No spreadsheets, no guesswork.