Vapi

Build, test, deploy, and improve voice AI agents while reducing infrastructure work and maintaining control as deployments scale.

Vapi platform

Vapi is a developer-first platform for building, testing, deploying, and managing voice AI agents. It combines a configurable API and dashboard with voice models, telephony, integrations, and production infrastructure. Teams can configure agent behavior, select models, run simulations, monitor production performance, and manage outbound campaigns. Developer tools include APIs, SDKs, a CLI, and MCP integrations. Agent Loop adds goal-based, human-reviewable agent improvement through tested changes to live traffic. Enterprise capabilities include security, compliance, and reliability features.

Category: Conversational AI Platforms

• Build And Deploy Voice Agents
  Create and configure voice agents, then deploy them using Vapi infrastructure rather than building that infrastructure from scratch.
• Choose And Compare Models
  Select model combinations based on goals and compare options using production-informed cost, latency, and quality measures, while retaining control over configuration changes.
• Respond In Real Time
  Support responsive voice conversations with platform responses under 500 milliseconds.
• Connect Business Data And Tools
  Ground agent responses in business context and enable agents to access data or trigger actions through connected APIs and tools.
• Test Agents Before Deployment
  Validate agent behavior with varied simulated conversations, review outcomes and recordings, and use quality gates to identify regressions or issues before changes reach production.
• Detect And Diagnose Call Issues
  Surface patterns across calls, understand which callers and agents are affected, and use issue context and recommendations to investigate and resolve problems.
• Compare And Roll Out Agent Changes
  Evaluate agent configurations against selected measures, test changes on a share of live calls, and use observed results to guide rollout or rollback.
• Protect Access And Data
  Use access controls, enterprise authentication options, AI guardrails, and compliance-related capabilities to support business requirements.
• Scale Calls With Resilience
  Support high-volume voice deployments with infrastructure designed to scale and recover from model or network failures.
• Build And Manage Through Developer Tools
  Integrate Vapi into development workflows using APIs, SDKs, and CLI tools for resource management, code generation, local webhook testing, logs, and IDE guidance.
• Improve Agents With Call Results
  Use business goals and call outcomes to identify issues, review evidence-backed proposals, test changes, and improve agents over time while retaining human approval and control.
• Coordinate Agents And Squads
  Coordinate multiple assistants in complex workflows and route conversations through intelligent handoffs.
• Shape Natural Conversations
  Tune voice and conversation behavior, including turn-taking and custom pronunciation, to fit the agent's use case.
• Manage Calls And Telephony
  Configure telephony for voice agents, including SIP connections, phone numbers, call transfers, voicemail detection, and DTMF.
• Run Personalized Outbound Campaigns
  Dial contact lists with tailored calls while controlling eligibility, calling windows, concurrency, and campaign progress.
• Serve Callers In 100+ Languages
  Configure agents to communicate with callers across more than 100 supported languages.
• Track Agent Performance
  Review usage and performance information to understand how agents are operating across calls.