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Vapi

vapi.ai

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Spec score 8.6 #5 of 32 in AI Voice Agents

What it is

Vapi is a voice-call platform available on the web and iOS. It supports inbound and outbound calls, human handoff, concurrent calls, and custom phone numbers. The usage-based No Success Package is listed at free and includes $5 in starter credits, one Vapi phone number, four concurrent calls, and full platform access. Core costs $29 a month, billed monthly, and includes five phone numbers, 10 concurrent calls, 30 days of raw data retention, and email support. Pro costs $999 a month, billed monthly, and includes 10 phone numbers, 30 concurrent calls, 180 days of raw data retention, RBAC, ZDR, and a 99% uptime SLA. Premier uses custom pricing; its listed options include custom phone-number counts and custom RBAC, ZDR, and SSO, with dedicated SIP available. The service listing says there is no free plan, although the No Success Package is presented at no cost with starter credits. Plan allowances vary, so the listed overall concurrent-call figure of 10 is not the allowance for every package.

Spec sheet

What it does
Vapi provides infrastructure for building, deploying and improving conversational voice agents for calls and applications.Read 15 Oct 2026 · vapi.ai
Product
Vapi describes itself as a platform for builders to build, deploy, and improve voice agents.Read 10 Oct 2026 · vapi.ai
Intended users
Vapi describes the platform as developer-first and says it is built for developers and ready for business.Read 10 Oct 2026 · vapi.ai
Integrations
Documented prebuilt or standard integrations include Make, n8n, Google Calendar, Google Sheets, Slack and GoHighLevel.Read 15 Oct 2026 · docs.vapi.ai
Compliance
Vapi's FAQ states HIPAA and GDPR compliance and directs customers to its trust portal for documentation.Read 15 Oct 2026 · docs.vapi.ai
Support
The free-start package includes peer-to-peer support through Discord and email support without an SLA; paid packages list response SLAs and additional support options.Read 10 Oct 2026 · vapi.ai
Analytics
Vapi offers reporting and analytics dashboards plus exports for usage, performance and conversation quality.Read 15 Oct 2026 · vapi.ai
API and webhooks
Vapi exposes REST endpoints and POST webhooks for call events, tool calls, assistant requests and transfer-destination requests.Read 15 Oct 2026 · docs.vapi.ai
API key security
Vapi separates public client keys from private server keys and recommends origin restrictions and server-side secret storage.Read 15 Oct 2026 · docs.vapi.ai
Automated testing
The platform includes test suites and simulations intended to identify hallucination and behavior risks before deployment.Read 15 Oct 2026 · vapi.ai
Changelog news
On October 5, 2026 Vapi documented GPT-6 Luna, ElevenLabs v4 Turbo, Deepgram nova-3-pharma, Soniox confidence filtering and simulation latency limits.Read 15 Oct 2026 · docs.vapi.ai
CLI
The Vapi CLI can initialize projects and forward webhooks from local development servers.Read 15 Oct 2026 · docs.vapi.ai
Company facts
LinkedIn lists Vapi as a privately held San Francisco software-development company founded in 2023 with 51–200 employees.Read 15 Oct 2026 · linkedin.com
Company scale claim
Vapi's LinkedIn page says its platform has powered more than one billion calls.Read 15 Oct 2026 · linkedin.com
Configuration as code
The open-source GitOps repository stores assistants, squads, tools, structured outputs, simulations and evals as YAML and Markdown synchronized by CLI.Read 15 Oct 2026 · docs.vapi.ai
Conversation features
The platform supports turn-taking, human-like voices, and custom pronunciation and keywords.Read 10 Oct 2026 · vapi.ai
Documentation depth
Documentation includes quickstarts, API reference, SDK links, CLI guides, webhook schemas, security material and a dated changelog.Read 15 Oct 2026 · docs.vapi.ai
Funding
Crunchbase lists a Vapi Series A led by Bessemer Venture Partners with eight investors, while the amount is not displayed publicly.Read 15 Oct 2026 · crunchbase.com
Languages
Vapi says agents can converse in English, Spanish, Mandarin, and more than 100 other supported languages.Read 10 Oct 2026 · vapi.ai
Latency
Vapi says its platform delivers responses in under 500ms for real-time conversation.Read 10 Oct 2026 · vapi.ai
Latency claim
The platform advertises voice responses in under 500 milliseconds.Read 15 Oct 2026 · vapi.ai
Legal maker name
The published Flutter SDK identifies the copyright holder as Vapi Labs Inc.Read 15 Oct 2026 · pub.dev
Licence
The hosted Vapi service is proprietary; its Flutter client package is published under the MIT licence.Read 15 Oct 2026 · pub.dev
Limit: dashboard complexity
G2 reviewers say the dashboard exposes many options and can require developer knowledge, suggesting simpler basic and advanced modes.Read 15 Oct 2026 · g2.com
Limit: latency
A G2 reviewer reports latency that can vary from roughly 800–1,000 milliseconds to 4–5 seconds.Read 15 Oct 2026 · g2.com
Limit: Product Hunt themes
Product Hunt reviewers ask for better production debugging, observability, interruption handling, latency control, memory and analytics.Read 15 Oct 2026 · producthunt.com
Limit: Trustpilot complaints
Trustpilot's visible reviews include complaints about high pricing for HIPAA voice receptionists and a large one-star share.Read 15 Oct 2026 · trustpilot.com
Model choice
Customers can bring their own transcription, language-model and text-to-speech providers or select from Vapi's managed catalog.Read 15 Oct 2026 · vapi.ai
Models
Vapi says customers can bring their own model or choose from a managed list of 200+ models and integrations.Read 10 Oct 2026 · vapi.ai
Multilingual support
Vapi says assistants can converse in more than 100 languages.Read 15 Oct 2026 · vapi.ai
Platform
Vapi says its platform handles orchestration, real-time monitoring, and enterprise configurability.Read 10 Oct 2026 · vapi.ai
Praise: Product Hunt themes
Product Hunt reviewers repeatedly praise fast deployment, developer friendliness, integrations, documentation, provider flexibility and natural voices.Read 15 Oct 2026 · producthunt.com
Praise: setup and API
G2 reviewers describe quick setup, straightforward integration, a developer-friendly API, useful debugging and adequate documentation.Read 15 Oct 2026 · g2.com
Provider keys
Users may connect their own provider credentials and are billed directly by those providers instead of through Vapi for that usage.Read 15 Oct 2026 · docs.vapi.ai
Rating on G2
3.6 out of 5 from 6 reviews.Read 15 Oct 2026 · g2.com
Rating on GetApp
0 out of 5 from 0 reviews; the listing says no reviews.Read 15 Oct 2026 · getapp.com
Rating on Product Hunt
4.9 out of 5 from 25 reviews.Read 15 Oct 2026 · producthunt.com
Rating on Trustpilot
2.4 out of 5 from 15 reviews.Read 15 Oct 2026 · trustpilot.com
SDK ecosystem
Official resources list real-time SDKs for Web, Flutter, React Native, iOS, Python and Vanilla JavaScript.Read 15 Oct 2026 · docs.vapi.ai
Security and compliance
The Trust Center lists CCPA, GDPR, HIPAA, SOC 2, PCI DSS v4.0.1, and SOC 3 compliance resources.Read 10 Oct 2026 · security.vapi.ai
Security certifications
Vapi states that it is SOC 2 Type II attested and undergoes annual third-party audits.Read 15 Oct 2026 · docs.vapi.ai
Self-hosting
Vapi's FAQ states that on-premise deployment is not supported.Read 15 Oct 2026 · docs.vapi.ai
SSO
SAML 2.0 and OIDC single sign-on are available with Enterprise or Premier; SCIM provisioning is not supported.Read 15 Oct 2026 · docs.vapi.ai
Telephony
Telephony capabilities include custom SIP, warm transfers, voicemail detection, phone number management, and DTMF support.Read 10 Oct 2026 · vapi.ai
Testing and analytics
Vapi lists automated test suites, reporting and analytics dashboards and exports, and A/B experiments for prompts, voices, and flows.Read 10 Oct 2026 · vapi.ai
Tool calling
Assistants can invoke built-in, API-request, webhook function, transfer, handoff, voicemail, client-side, query and MCP tools.Read 15 Oct 2026 · docs.vapi.ai
Tools and data
Agents can use external data and trigger tools, including MCP, during live calls.Read 10 Oct 2026 · vapi.ai
Trust Center
The trust center lists CCPA, GDPR, SOC 2 and PCI DSS v4.0.1 materials, including penetration-test and network documents.Read 15 Oct 2026 · security.vapi.ai
TrustRadius listing
TrustRadius describes Vapi as infrastructure and APIs for deploying human-like voice agents but shows pricing as sales-contact only.Read 15 Oct 2026 · trustradius.com
Usage limits
The free-start package includes 4 concurrent calls and 14 days of raw data retention.Read 10 Oct 2026 · vapi.ai
Web installation
The web client is installed from npm or Yarn as the @vapi-ai/web package.Read 15 Oct 2026 · vapi.mintlify.app

Plans and prices

No Success Package Free $0 to start; pre-paid, $0.05/min Vapi hosting; models pass-through at cost $5 free credits · 2 organizations · 1 included Vapi phone number · 4 concurrent calls · 14 days raw data retention · full model catalog · full platform access · peer-to-peer Discord support · email support without SLA Read 10 Oct 2026 · vapi.ai
Core $29 a month Pre-paid, auto-renew 2 organizations · 5 Vapi phone numbers · 10 concurrent calls · 30 days raw-data retention · zero-data-retention included · email support · two-business-day response SLA Read 15 Oct 2026 · vapi.ai
Pro $999 a month 10% of Vapi hosting fee; $999 monthly minimum; provider costs pass through 10 organizations · 10 Vapi phone numbers · 30 concurrent calls · 180 days raw-data retention · RBAC and zero-data-retention · dedicated Slack support · one-business-day response SLA · 99% uptime SLA Read 15 Oct 2026 · vapi.ai
Premier Priced on request Custom contract; provider costs pass through Custom organizations, concurrency, retention and phone numbers · named support team · one-hour P0 response SLA · 99.9% uptime SLA · custom RBAC, zero-data-retention and SSO · dedicated SIP available Read 15 Oct 2026 · vapi.ai
No Success Package / Usage only Free Pre-paid usage; $0.05/min Vapi hosting, provider costs pass through $5 free credits · 2 organizations · 1 Vapi phone number · 4 concurrent calls · 14 days raw-data retention · full platform access · Discord and email support without SLA Read 15 Oct 2026 · vapi.ai

Every Vapi plan and price →

Strong points and limits

Strong points

  • Supports inbound and outbound calls.
  • Human handoff is supported.
  • Core includes five Vapi phone numbers.
  • Pro includes 30 concurrent calls.
  • Premier lists dedicated SIP as available.

Limits

  • No free plan is listed.
  • Core costs $29 a month.
  • Pro costs $999 a month.
  • Premier pricing is custom.

Who it suits

Vapi suits users seeking a platform for inbound and outbound voice calls, including human handoff. Its plans offer different phone-number and concurrent-call allowances, while Premier is listed with custom pricing.

Verdict

Vapi lists a usage-based starting package alongside monthly Core and Pro plans, with custom pricing for Premier. Check the package-specific call limits, retention periods, and price before selecting a plan.

Where Specifiction places it

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