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SPECIFICTION
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Twilio Studio

twilio.com

Free plan WebAPI
Visit twilio.com
Spec score 7.4 #14 of 20 in Interactive Voice Response Software

What it is

Twilio Studio is a visual builder for creating, editing, and managing communication workflows with low-code or no-code tools and optional custom code. Users place widgets on a canvas, and flows can start from inbound messages, voice calls, webhooks, or other Studio Flows. Workflows can handle voice, messaging, and other communication applications, and Studio can exchange data with backend systems to add context to Twilio-powered conversations. Twilio lists IVRs, appointment reminders, SMS surveys, call center workflows, autoresponders, and call forwarding as use cases. Its documentation includes tutorials for Slack, WhatsApp customer support menus, Twilio Conversations, and RCS messaging. The free tier includes 1,000 flow executions per month. A Flow can contain up to 2,000 widgets, including Subflows; an Execution ends after 1,000 steps or 30 days, and Execution and Step data is retained for 30 days after an Execution starts. Outbound HTTP requests from specified widgets are limited to 10 seconds. Additional Twilio communications charges are separate.

Spec sheet

What it does
Twilio Studio is a low-code/no-code visual builder for creating, editing, and managing communication workflows.Read 30 Sep 2026 · twilio.com
Integrations
Studio documentation includes tutorials for Slack, WhatsApp customer support menus, Twilio Conversations, and RCS messaging.Read 30 Sep 2026 · twilio.com
Support
Twilio directs Studio users to its support team and the Twilio tag on Stack Overflow for help.Read 30 Sep 2026 · twilio.com
Founded
2008Read 28 Sep 2026 · twilio.com
Authentication
Studio automatically generates an API key for Twilio API requests during a Flow Execution, so users do not need to provide their Twilio Auth Token to Studio.Read 30 Sep 2026 · twilio.com
Backend connections
Studio can send data to and from backend systems to add context to Twilio-powered conversations.Read 30 Sep 2026 · twilio.com
Channels
Studio workflows can handle voice, messaging, and other communication applications.Read 30 Sep 2026 · twilio.com
Execution data retention
Studio retains Execution and Step data for 30 days after an Execution starts.Read 30 Sep 2026 · twilio.com
Flow limits
A Flow is limited to 2,000 widgets including Subflows, and an Execution ends after 1,000 steps or 30 days.Read 30 Sep 2026 · twilio.com
PCI limitation
Studio does not support the PCI Mode setting in Programmable Voice, and its Gather Input widget does not redact collected Gather data.Read 30 Sep 2026 · twilio.com
Request limit
Outbound HTTP requests from the HTTP Request and Run Function widgets are limited to 10 seconds.Read 30 Sep 2026 · twilio.com
Security certifications
Twilio states that its services are certified under ISO/IEC 27001 and have attestations to ISO/IEC 27017 and ISO/IEC 27018.Read 30 Sep 2026 · twilio.com
Triggers
Flows can be triggered by inbound messages, inbound voice calls, webhooks, or other Studio Flows.Read 30 Sep 2026 · twilio.com
Use cases
Twilio identifies IVRs, appointment reminders, SMS surveys, call center workflows, autoresponders, and call forwarding as Studio use cases.Read 30 Sep 2026 · twilio.com
Visual builder
Users build workflows by dragging widgets onto a canvas and can add code for custom logic.Read 30 Sep 2026 · twilio.com

Plans and prices

Free tier Free 1,000 flow executions per month are free Read 30 Sep 2026 · twilio.com
Pay-as-you-go Free per flow execution 1,000 flow executions per month are free · unlimited flows · additional Twilio communications charges are separate Read 30 Sep 2026 · twilio.com

Every Twilio Studio plan and price →

Strong points and limits

Strong points

  • Visual workflow builder supports low-code and no-code use.
  • Flows can start from messages, calls, webhooks, or other flows.
  • Free tier includes 1,000 executions per month.
  • Can exchange data with backend systems.
  • API access is listed.

Limits

  • Flows are limited to 2,000 widgets.
  • Executions end after 1,000 steps or 30 days.
  • Specified outbound HTTP requests are limited to 10 seconds.
  • Additional Twilio communications charges are separate.

Who it suits

Studio suits teams building communication flows across voice and messaging, including for reminders, surveys, or call-center workflows. It also fits users who want to connect flows to backend systems or add custom code.

Verdict

Twilio Studio provides visual workflow creation for communication use cases, with triggers, backend connections, and a monthly free execution allowance. Review its widget, execution, request-time, and separate communications-charge limits before designing a flow.

Where Specifiction places it

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