AI-powered event communication
AI-Powered Event Communication | Automate Participant Messaging
Your event uses email. Your attendees read texts.
AI event SMS changes how organizers communicate. MustardSMS is the only AI-powered SMS platform built for events. It answers participant questions, tracks RSVPs in real time, and sends emergency alerts, all hands-free. No app download. No manual replies.
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98%
SMS open rate
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3 min
Avg time to read a text
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80%
Questions resolved by AI
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12 hrs
Avg staff time saved per event
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0
Apps for attendees to download
By texting "Text me a link," you agree to receive SMS messages from Hexoglyph Holdings LLC dba MustardSMS. Msg & data rates apply. Reply STOP to opt out. Reply HELP for help. We will not share mobile information with third parties for marketing purposes. See our Privacy Policy and Terms for details.
How it works
Set it up once. Let AI handle the rest.
From the moment a participant opts in to the final post-event follow-up, MustardSMS runs the entire communication flow for you.
- 1
Create your event and go live in minutes
Enter your event details. MustardSMS provisions a dedicated phone number and generates a unique QR code and opt-in page, ready to share immediately.
Setup in minutes - 2
Participants text in, AI handles every reply
When attendees text your event number, the AI reads their message and responds instantly from your Knowledge Base. RSVPs are tracked, dietary flags are logged, questions are answered.
Zero manual replies needed - 3
Broadcast updates and monitor in real time
Send time-sensitive updates to your entire participant list in one tap. Track sentiment, spot question hotspots, and get instant alerts if anything needs your attention.
Full visibility, hands-free - 4
Automated Storyline workflows run on schedule
Build a 4-stage message sequence: invite text, welcome SMS, RSVP confirmation, then pre-event nudges. Set it once and MustardSMS executes it automatically.
Workflow automation
See it in action
What your participants actually experience
A real conversation flow. A participant texts your event number and MustardSMS AI responds in seconds, no human required — until it decides one is actually needed.
Built for your event type
Whatever your event, the AI adapts
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Sports events and races
From bib number questions to course changes, MustardSMS keeps athletes informed and your team free to focus on the event.
- Real-time broadcast to all participants
- Emergency brake for safety alerts
- AI answers check-in and logistics questions
- Per-event dedicated phone number
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Corporate and social events
Manage RSVPs, dietary requests, and schedule updates across hundreds of participants without a single team member manually texting.
- AI RSVP with dietary flag detection
- Storyline workflows for timed communications
- Multi-staff management with permissions
- Branded PDF participant export
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Community and municipal events
MustardSMS fills a gap no competitor targets: municipal or community events, handling parking questions, schedule updates, and emergency alerts.
- Knowledge base for venue and parking info
- Emergency broadcast for safety alerts
- Topic hotspot detection for crowd issues
- WhatsApp support for diverse communities
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International and hybrid events
MustardSMS is the only event platform with both SMS and WhatsApp in one dashboard. Reach international participants by WhatsApp, everyone else by text.
- WhatsApp Business API built in
- AI responds across both channels
- No app download for participants
- 10DLC and international compliance
Race day reality
What changes when your AI handles the texts
A 500-person sprint triathlon. Same event, same athletes, same questions. The only difference is whether you're answering them manually or letting MustardSMS handle it.
Without MustardSMS
- 200+ texts asking about parking, wetsuits, cutoff times, and packet pickup. Each one needs a manual reply.
- Three volunteers pulled off course setup to answer phones and respond to messages.
- A course detour at mile 6 gets communicated by word of mouth. Half the field misses it.
- Post-race: you discover 40 athletes never got the schedule change because the email went to spam.
- You spend two hours after the race replying to complaints about missing information.
12+ hrs staff time spent on race-week texting
With MustardSMS
- 200+ texts answered automatically. Wetsuit call, parking lots, cutoff times, all from your Knowledge Base.
- All three volunteers stay on course setup. Nobody pulled away to handle texts.
- Course detour broadcast reaches every athlete in under 60 seconds. 98% open rate. Nobody misses it.
- Sentiment analysis flags a spike in “parking” messages at 6:45 AM. You broadcast overflow lot directions before it grows.
- Post-race: four texts escalated to you all week. The AI handled the other 800+.
< 30 min total organizer time on race-week texting
AI-powered features
Capabilities built for events, not generic SMS blasting
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AI-Powered Q&A Assistant
Your AI reads every participant text, matches it to your Knowledge Base using cosine similarity, and replies instantly. When it's unsure, it escalates to you.
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Autonomous AI Mode
Flip the switch and let the AI manage all participant conversations independently. It learns from your corrections and gets smarter with every event.
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AI RSVP Tracking
Participants text “yes,” “can't make it,” or anything in between. The AI detects RSVP intent and updates your participant list automatically.
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Emergency Brake System
One tap broadcasts an urgent safety alert to every attendee. The AI pauses autonomous replies so you have full, direct control.
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Real-Time Sentiment Analysis
The platform reads the emotional tone of every inbound message, flagging frustration, urgency, and distress before it escalates.
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6 Switchable AI Personas
Match your AI's tone to your event: Casual Host, Pro Planner, Family Organizer, Corporate Host, Sports Director, or a custom persona.
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Storyline Workflow Automation
A visual 4-stage timeline sequences communications from invite to post-event, with personalized tokens for names, details, and dates.
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WhatsApp Business API
The only event SMS platform with built-in WhatsApp support, reaching international and WhatsApp-first attendees from the same dashboard.
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Topic Hotspot Detection
When a topic like parking or schedule changes suddenly spikes in participant messages, MustardSMS flags it so you can broadcast proactively.
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Full Consent Audit Trail
Every participant opt-in is logged with IP address, timestamp, and user agent. Every opt-out is honored immediately.
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Dedicated Event Phone Number + QR Code
Every event gets its own number, not a shared keyword on a pool number. No confusion, no overlap between events.
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Knowledge Base with Learning Mode
Upload your FAQ, schedule, or event guide. When the AI hits a gap, it asks you and learns for next time.
How we compare
Capabilities other event SMS tools don't offer
| Feature | MustardSMS | TextMyGuests | Evant | Text-Em-All | Textedly |
|---|---|---|---|---|---|
| AI Q&A assistant (two-way) | ✓ | ✗ | ✗ | ✗ | ✗ |
| WhatsApp integration for events | ✓ | ✗ | ✗ | ✗ | ✗ |
| Emergency brake + safety toggle | ✓ | ✗ | ✗ | ✗ | ✗ |
| Real-time sentiment analysis | ✓ | ✗ | ✗ | ✗ | NLP only |
| Dedicated per-event phone number | ✓ | ✗ | ✗ | ✗ | ✗ |
| Autonomous AI mode | ✓ | ✗ | ✗ | ✗ | ✗ |
| Storyline workflow automation | ✓ | ✗ | ✗ | Drip only | Drip only |
| Full consent audit trail | ✓ | ✗ | ✗ | Basic | ✗ |
| Topic hotspot detection | ✓ | ✗ | ✗ | ✗ | ✗ |
| Knowledge base with learning mode | ✓ | ✗ | ✗ | ✗ | ✗ |
| SMS broadcast messaging | ✓ | ✓ | ✓ | ✓ | ✓ |
Feature data based on publicly available product information as of February 2026. "Drip only" indicates automated sequences without event-specific stage logic. "NLP only" indicates general-purpose language processing without event-specific sentiment modeling. All trademarks and company names are the property of their respective owners.
Transparent pricing
What does MustardSMS cost for my event?
Every plan includes all features. You only pay for message volume.
| Participants | Recommended plan | Price | Messages included |
|---|---|---|---|
| 200 | Standard | $99 per event | 750 |
| 400 | Pro | $149 per event | 2,000 |
| 800 | Elite | $299 per event | 5,000 |
| 1,600 | Elite | $299 per event | 5,000 |
| 1,800+ | Big Jug | $199 /mo | 10,000 /mo |
Estimates assume roughly 60% attendee opt-in and 4–5 messages per opted-in participant. Top-ups available on all plans. Events under 200 participants start at $39 per event. See full pricing.
Built compliant from day one
The deepest compliance stack in event SMS
With the FCC's one-to-one consent rule now enforced, your opt-in process and audit trail are not optional. Ours are complete, automatic, and built in.
- 10DLC Registered
- Consent Audit Trail
- Auto STOP Handling
- Anti-Blast Rate Limiting
- FCC 2026 Ready
FAQ
Everything you need to know about AI event SMS
What is an AI event SMS assistant?
An AI event SMS assistant automatically answers attendee questions, tracks RSVPs, sends broadcast updates, and handles two-way conversations without the organizer manually responding to each text. MustardSMS uses advanced AI as its reasoning engine with a Knowledge Base trained on your event's specific information.
How does SMS RSVP with AI work?
When participants text your event number, the AI reads their reply, detects RSVP intent, and updates your participant list automatically, including dietary preferences and plus-ones. You review confirmations in your dashboard before they lock in, so you always stay in control.
Can event SMS handle emergency alerts automatically?
Yes. MustardSMS includes an Emergency Brake system that lets organizers broadcast urgent safety alerts to every participant instantly. When activated, the AI pauses autonomous replies and escalates all inbound messages to you, so participants who respond reach a human, not a bot.
What is event SMS workflow automation?
MustardSMS calls this Storyline, a visual 4-stage timeline that sequences messages across your event lifecycle: an invite text, a welcome SMS, an RSVP confirmation, and timed broadcasts or nudges before the event. You build it once and the platform runs it automatically.
Does MustardSMS support WhatsApp for events?
Yes, and it's the only event SMS platform that does. MustardSMS has native WhatsApp Business API integration, so you can communicate via both SMS and WhatsApp from one dashboard.
Do my participants need to download an app?
No. Participants receive and reply to texts in the standard messages app on any phone. There's no download, no account creation, no new platform to learn.
How does MustardSMS stay compliant with SMS regulations?
MustardSMS has 10DLC registration support, a full consent audit trail capturing IP address, timestamp, and user agent at every opt-in, automatic STOP handling, and an anti-blast rate limiter that prevents sending spikes that could flag your number.
What is event SMS sentiment analysis?
MustardSMS analyzes the emotional tone and urgency of inbound participant messages in real time. If frustration, distress, or a sudden spike in questions around a topic is detected, the platform flags it as a hotspot so you can address it proactively.
How is MustardSMS different from general SMS broadcast tools?
General SMS tools offer broadcast messaging. MustardSMS adds a true AI Q&A assistant, autonomous AI mode, a cosine-matching Knowledge Base, emergency brake, sentiment analysis, 6 AI personas, topic hotspot detection, Storyline workflows, WhatsApp integration, per-event dedicated phone numbers, and a full consent audit trail.
How quickly can I get started?
Most organizers are live within minutes. Sign in, create your event, and MustardSMS provisions a dedicated phone number automatically. Upload your Knowledge Base content, customize your Storyline workflow, and share your QR code or opt-in link.
What does MustardSMS cost?
MustardSMS starts with a free tier called Little Packet, no credit card required, including a dedicated event phone number, AI Q&A, Knowledge Base, and basic Storyline workflows. Paid plans scale with your participant list on either the per-event or monthly track. See exact tiers on the pricing page.
Ready to run your next event on autopilot?
Join event organizers who've stopped manually answering texts.
No app for participants. No spam. No ads, ever. Setup in minutes.