Best AI Voice Agents for JSON

Voiceflow is an operating system for AI customer experience that helps businesses create conversational agents for customer support, sales, lead generation, call centers, and self-service automation. It enables teams to design AI workflows visually while also giving developers access to APIs, code functions, integrations, and customization tools. The platform is built for teams that want to ship AI agents faster, test changes with confidence, and roll out improvements that remain compatible as usage grows. Voiceflow supports web, phone, and mobile experiences, helping companies serve customers across multiple channels from one platform. Its agent builder combines agentic playbooks with deterministic workflows, allowing teams to balance AI flexibility with structured business logic. The observability suite uses LLM-powered evaluations, logs, and metrics to help teams understand agent behavior and make faster iteration decisions. Production environments support a real development pipeline from design to staging and final launch, all hosted on Voiceflow. Businesses can connect agents to tools such as Zendesk, Salesforce, Shopify, HubSpot, Airtable, Google Sheets, Make, Gmail, and other applications. With model flexibility, enterprise compliance, and collaboration features, Voiceflow helps organizations automate customer conversations while maintaining control, visibility, and security.

Grok Voice Agent Builder serves as xAI’s no-code solution for swiftly setting up production voice agents on Grok Voice in less than two minutes. Tailored for both operators and developers, it allows the creation of high-volume voice agents without the need to construct the entire infrastructure from the ground up, integrating telephony, knowledge retrieval, tools, guardrails, MCPs, and observability all in one comprehensive platform. Rather than piecing together different APIs for speech-to-text, language models, and text-to-speech, the Voice Agent Builder provides a unified interface designed for a seamless speech-to-speech experience closely integrated with the Grok Voice model. Users have the ability to articulate a straightforward description of call flows, upload relevant documents, connect necessary tools, implement guardrails, and transition effortlessly from concept to a fully functional agent. Additionally, it can access and retrieve information from various uploaded knowledge bases in widely used formats, including plain text, Markdown, Word, PowerPoint, Excel, HTML, JSON, and more, making it a versatile tool for voice agent development. This flexibility ensures that users can leverage existing resources effectively while streamlining the agent creation process.

Dasha is a platform offering conversational AI as a service that enables the integration of lifelike voice and text interactions into various applications or products. By utilizing a straightforward integration process, developers can create intelligent conversational applications for multiple platforms, including web, desktop, mobile, IoT devices, and call centers. The platform features DashaScript, an event-driven declarative programming language designed to facilitate the creation of complex dialogues that can effectively pass a limited Turing test. This technology allows for the automation of call center interactions, the replication of the Google Duplex demo with fewer than 400 lines of code, or the development of user-friendly no-code graphical interfaces that translate into DashaScript. Any device with internet connectivity and access to a microphone or speaker is capable of running a Dasha application. Developers can leverage their existing infrastructure, such as databases and external services like Airtable, Zendesk, and TalkDesk, to enhance their voice and chat applications. Conversations can be executed across various platforms, and custom data can be incorporated into Dasha, allowing users to obtain results that deliver maximum value in their specific contexts. This flexibility ensures that Dasha remains a powerful tool for businesses looking to improve their conversational AI capabilities.