Two-Way SMS
Hold real conversations over SMS. Receive inbound replies on your numbers and respond programmatically to build interactive, two-way messaging flows.
- 2-way
- messaging
- 190+
- countries
- 99.99%
- uptime SLA
curl -X POST https://api.conversa.in/v1/sms/messages \
-H "Authorization: Bearer $API_KEY" \
-d from="+14155550100" \
-d to="+919000000000" \
-d text="Reply YES to confirm your booking."Everything you need to ship Two-Way SMS
Inbound webhooks
Every reply is posted to your endpoint in real time for instant handling.
Threaded context
Messages are grouped by number pair so conversations stay in sync.
Keyword routing
Trigger automated actions on keywords like STOP, HELP, or YES.
Programmable replies
Respond dynamically from your app logic over the same REST API.
Built for how you use Two-Way SMS
- Customer support
- Booking confirmations
- Surveys & polls
- Conversational commerce
SLA
99.99%
uptime SLA
Enterprise-grade reliability with 24/7 support, dedicated routing, and transparent status reporting.
Common questions
How do I receive replies?
Point an inbound webhook at your server and we post every incoming message to it.
Can I automate opt-outs?
Yes — STOP and HELP keywords are handled automatically and honored on your numbers.
More SMS products
Every Conversa product shares the same API, dashboard, and billing.
Ready to launch Two-Way SMS?
Get API keys in minutes. Pay only for what you use.