Raised $72M across disclosed rounds.[2][3][4][5][6][8]

Series B closed May 2026, led by Peak XV.[2][3][4][5][6][8]

post-money valuation is not publicly disclosed.

Named investors include Peak XV, M12 (Microsoft's Venture Fund), Kleiner Perkins, Bessemer Venture Partners, Y Combinator, Abstract Ventures, AI Grant, Saga Ventures, Michael Ovitz.[1][2][3][4][5]

Bland AI · bland.ai · Same developer-facing API model for production voice agents handling high-volume inbound and outbound calls; named alongside Vapi in the 2026 AI Voice Agent Vendor Landscape market map as a direct infrastructure-layer competitor.[18]

Retell AI · retellai.com · Directly competes on the same API-native, low-latency voice agent infrastructure layer for developers; co-listed with Vapi in the 2026 AI Voice Agent Vendor Landscape market map under the developer platform category.[18]

Twilio · twilio.com · Vapi's own tech stack lists Twilio as a component, and Vapi explicitly positions its value as abstracting telephony internals—the layer Twilio historically owned; both compete for the engineering budget that routes production voice calls.[1][3]

Nuance Communications (Microsoft) · nuance.com · Vapi's tech stack lists Nuance as a component it displaces or integrates with; both target enterprise voice automation in regulated verticals (healthcare, financial services) with HIPAA-grade compliance requirements.[1]

The customer proof is company-sourced only. No independent source in this ledger confirms it.[10]

Ask for one referenceable production customer.

Not a recommendation. The first thing this ledger cannot answer.

Filled in the side panel for invited readers. This card carries sourced facts only.