What does Vapi use?

As of October 2026, runsonwhat has found 52 tools at Vapi (vapi.ai) in public records. Edge & Hosting: Cloudflare and Vercel. Application: React, Tailwind CSS and Next.js. Data & Observability: Google Analytics, Google Tag Manager and Sentry. Go-to-market: Google Ads, Meta Pixel and LinkedIn Insight Tag. Company Ops: Microsoft 365, Google Workspace and Let's Encrypt. Last checked October 7, 2026.

Vapi uses Vercel for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Vercel through a subdomain that points at Vercel and a DNS verification record. Vercel is used by 45,736 companies runsonwhat tracks.

Vapi uses HubSpot for its CRM, alongside Apollo.io, Vector and Propensity, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on vapi.ai. HubSpot is used by 90,529 companies runsonwhat tracks.

Vapi uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 694,640 companies runsonwhat tracks.

Vapi uses Discord for customer support and documentation, alongside Canny and Atlas, according to runsonwhat (October 2026). runsonwhat found Discord through Discord code on vapi.ai. Discord is used by 3,643 companies runsonwhat tracks.

Vapi uses Stripe for payments and billing, according to runsonwhat (October 2026). runsonwhat found Stripe through a subdomain that points at Stripe. Stripe is used by 25,570 companies runsonwhat tracks.

Vapi has used Okta since at least August 2026, going by the first public certificate of the vapi.ai subdomain that points at Okta.

Yes. runsonwhat found Cloudflare at Vapi through DNS records that point at Cloudflare and email records. Cloudflare is a CDN & Edge tool used by 685,458 companies runsonwhat tracks.

Yes. runsonwhat has found Anthropic and Modal at Vapi; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Vapi may use more AI tools than these.

The companies with the stacks most like Vapi's are Thera, Mailmodo Technologies, Blink and 21st, according to runsonwhat (October 2026). Each shares 8 to 17 tools with Vapi, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

runsonwhat reads public records only. Of the 52 tools at Vapi, 22 were found through code on vapi.ai, 18 through DNS records, 9 through subdomains that point at the vendor, 2 through email records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and vapi.ai about monthly.