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AI Voice Agents

Discover how our AI voice agents can transform your business

How to Supercharge Your AI Voice Agents With API, Make, and Zapier Integrations

Rounded Team03 June 2025

Unlock the full potential of your AI voice agents with Rounded's API, Make, Zapier, and n8n. Learn how to automate calls, personalize conversations, and connect your voice agents to your business systems — without writing code.

Why a Voice Agent That Can’t Act Won’t Help Your Business

Many voicebots still do little more than answer a call or deliver static information. They are glorified answering machines — not business drivers

With Rounded, it’s different: voice agents can act

They can

Send a text (SMS)Update a CRMBook an appointmentChange a lead statusTrigger a payment processAnd many more!👉 This is what AI that acts, not just talks really means.

How Rounded API and Integrations Unlock Real Automation Power

The true strength of Rounded voice agents lies in their ability to integrate seamlessly with your tools and systems — to truly act, not just speak.🔗 What you can do with Rounded’s API:1. Custom Tools to call your own APIsDuring the conversation, your agent can perform API calls (POST, GET, PUT…) via Custom Tools — enabling it to interact live with your systems

Example: check a subscription status, update a customer record, trigger a backend process.2. Inject variables via API to personalize callsYou can inject variables into the Call Context:when triggering a call via APIvia CSV (for outbound campaigns)These variables personalize the conversation and drive logic throughout the call.3. React to real-time webhook eventsRounded emits webhook events during key moments of the call:call status updatesvariable changestool usagepost-call eventsYour systems can react automatically to what happens during the conversation.4. Control Rounded via public APIWith Rounded API, you can:trigger callsretrieve call detailsupdate call datamanage agents and campaigns programmaticallyand more…

How Rounded Works With Make, Zapier, and n8n

The real magic happens when Rounded is connected to automation platforms:➤ MakeA powerful visual no-code platform to create complex, multi-step workflows — without code:trigger a Rounded callhandle webhook eventsupdate CRMs, databases, or third-party appssend follow-ups➤ ZapierThe easiest way to connect Rounded to 5,000+ popular apps:trigger calls from simple events (form submission, new contact…)log call resultsautomate notifications➤ n8nAn open-source automation tool, highly customizable:advanced logiccomplex data parsingfull control over workflowsself-hosted options👉 Combined with Rounded’s API, these tools give you the power to make your AI voice agents truly actionable — fully connected to your business stack.5 Powerful Voice Agent Integration Use CasesHere are 5 high-impact use cases that Rounded customers already deploy:1. SMS Follow-Up After a Call (Twilio, SMSAPI, MessageBird...)Send an appointment confirmationDeliver a payment linkShare a personalized form2. Automated CRM Updates (HubSpot, Notion, Airtable...)Move a contact to "follow-up needed" or "appointment confirmed"Add or update CRM fields based on call variables3. Support Ticket Creation (Zendesk, Notion, Intercom...)Automatically open a ticket based on call outcomesPre-fill the ticket with call data4. Manage Appointment Scheduling (Google Calendar, Cal.com...)Book or update appointments from the voice agentTrigger calendar invites or confirmations after the callYou can watch our Youtube video on this topic!5. Optimize Follow-Up Campaigns (Automated outbound call campaigns)Trigger outbound calls automatically — for example

When a new lead enters the CRMWhen a customer reaches a follow-up stageWhen no response was received to emailsYou can watch our Youtube video on this topic!

Conclusion: AI Voice Agents That Truly Drive Business Actions

With Rounded’s APIs and integrations with Make, Zapier, and n8n, your voice agents can do far more than talk

They can:✅ Act in real time✅ Connect to your tools✅ Trigger automated workflows✅ Drive business outcomes — not just conversations👉 Ready to build voice agents that act, not just talk? Rounded makes it easy — with no code and endless possibilities.‍

Support & Assistance

Questions about our articles

Everything you need to know about our solutions and articles

Implementation is simple and fast. Our teams guide you step by step, from initial configuration to production deployment, usually in less than a week.
Yes, our solutions natively integrate with over 2000 applications. Whether you use Salesforce, HubSpot, SAP or other tools, integration is done without custom development.
Our pricing is transparent and usage-based. Start with a 14-day free trial including €10 in credits, then choose the plan that fits your needs.
We offer different support levels based on your plan: community support, ticket support, dedicated Slack channel, and priority support with dedicated manager for Enterprise plans.

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