aid: vapi-ai
url: https://raw.githubusercontent.com/api-evangelist/vapi-ai/refs/heads/main/apis.yml
apis:
- aid: vapi-ai:vapi-assistants-api
  name: Vapi Assistants API
  tags:
  - Assistants
  - Voice AI
  - Agents
  humanURL: https://docs.vapi.ai/api-reference/assistants/list
  properties:
  - url: https://docs.vapi.ai/api-reference/assistants/list
    type: Documentation
  - url: openapi/vapi-assistants-api-openapi.yml
    type: OpenAPI
  - url: json-schema/vapi-assistant-schema.json
    type: JSONSchema
  - url: json-structure/vapi-assistant-structure.json
    type: JSONStructure
  - url: examples/vapi-assistant-example.json
    type: Example
  - type: NaftikoCapability
    url: capabilities/assistants-assistants.yaml
  description: Create and manage Vapi voice assistants. An assistant bundles a transcriber, LLM, voice (TTS),
    server URL, tools, first message, system prompt, voicemail handling, and call analysis plan into a reusable
    voice agent configuration that can be attached to inbound or outbound phone numbers, web calls, or squads.
- aid: vapi-ai:vapi-calls-api
  name: Vapi Calls API
  tags:
  - Calls
  - Voice AI
  - Telephony
  humanURL: https://docs.vapi.ai/api-reference/calls/list
  properties:
  - url: https://docs.vapi.ai/api-reference/calls/list
    type: Documentation
  - url: openapi/vapi-calls-api-openapi.yml
    type: OpenAPI
  - url: json-schema/vapi-call-schema.json
    type: JSONSchema
  - url: json-structure/vapi-call-structure.json
    type: JSONStructure
  - url: examples/vapi-call-example.json
    type: Example
  - type: NaftikoCapability
    url: capabilities/calls-calls.yaml
  description: Create outbound calls, accept inbound calls, list and filter calls, fetch call status and analysis,
    delete call data, and download per-call artifacts including mono and stereo recordings, customer/assistant
    isolated recordings, video recordings, PCAP packet captures, and structured call logs.
- aid: vapi-ai:vapi-phone-numbers-api
  name: Vapi Phone Numbers API
  tags:
  - Phone Numbers
  - Telephony
  - Voice AI
  humanURL: https://docs.vapi.ai/api-reference/phone-numbers/list
  properties:
  - url: https://docs.vapi.ai/api-reference/phone-numbers/list
    type: Documentation
  - url: openapi/vapi-phone-numbers-api-openapi.yml
    type: OpenAPI
  - url: json-schema/vapi-phone-number-schema.json
    type: JSONSchema
  - url: json-structure/vapi-phone-number-structure.json
    type: JSONStructure
  - url: examples/vapi-phone-number-example.json
    type: Example
  - type: NaftikoCapability
    url: capabilities/phone-numbers-phone-numbers.yaml
  description: Buy, BYO-import, and manage phone numbers from Vapi (vapi.phoneNumber), Twilio, Telnyx, Vonage,
    and SIP trunks. Attach an assistant or squad to a number for inbound routing and configure outbound caller-id
    behavior.
- aid: vapi-ai:vapi-squads-api
  name: Vapi Squads API
  tags:
  - Squads
  - Voice AI
  - Agents
  humanURL: https://docs.vapi.ai/api-reference/squads/list
  properties:
  - url: https://docs.vapi.ai/api-reference/squads/list
    type: Documentation
  - url: openapi/vapi-squads-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/squads-squads.yaml
  description: Compose multiple assistants into a Squad — a multi-agent workflow where the active assistant can
    hand off a live call to another assistant in the squad based on tools, intents, or transfer destinations.
- aid: vapi-ai:vapi-tools-api
  name: Vapi Tools API
  tags:
  - Tools
  - Voice AI
  - Function Calling
  humanURL: https://docs.vapi.ai/api-reference/tools/list
  properties:
  - url: https://docs.vapi.ai/api-reference/tools/list
    type: Documentation
  - url: openapi/vapi-tools-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/tools-tools.yaml
  description: Define and manage Tools (function tools, transfer-call tools, end-call tools, DTMF tools, hangup
    tools, voicemail tools, MCP tools, query tools, Make/Zapier tools, knowledge-base tools, and Google/Slack/
    GoHighLevel integrations) that the assistant LLM can invoke during a call.
- aid: vapi-ai:vapi-files-api
  name: Vapi Files API
  tags:
  - Files
  - Voice AI
  - Knowledge Base
  humanURL: https://docs.vapi.ai/api-reference/files/list
  properties:
  - url: https://docs.vapi.ai/api-reference/files/list
    type: Documentation
  - url: openapi/vapi-files-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/files-files.yaml
  description: Upload, list, retrieve, update, and delete files used as inputs to knowledge bases and other
    assistant-side artifacts.
- aid: vapi-ai:vapi-chats-api
  name: Vapi Chats API
  tags:
  - Chats
  - Voice AI
  - Text
  humanURL: https://docs.vapi.ai/api-reference/chats/list
  properties:
  - url: https://docs.vapi.ai/api-reference/chats/list
    type: Documentation
  - url: openapi/vapi-chats-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/chats-chats.yaml
  description: Text-based conversation surface that reuses the same assistant configuration as voice calls,
    including an OpenAI-compatible /chat/responses endpoint for drop-in replacement of OpenAI chat completions.
- aid: vapi-ai:vapi-sessions-api
  name: Vapi Sessions API
  tags:
  - Sessions
  - Voice AI
  - State
  humanURL: https://docs.vapi.ai/api-reference/sessions/list
  properties:
  - url: https://docs.vapi.ai/api-reference/sessions/list
    type: Documentation
  - url: openapi/vapi-sessions-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/sessions-sessions.yaml
  description: Stateful sessions that persist conversation history across calls and chats so an assistant can
    pick up where the customer left off.
- aid: vapi-ai:vapi-campaigns-api
  name: Vapi Campaigns API
  tags:
  - Campaigns
  - Voice AI
  - Outbound
  humanURL: https://docs.vapi.ai/api-reference/campaigns/list
  properties:
  - url: https://docs.vapi.ai/api-reference/campaigns/list
    type: Documentation
  - url: openapi/vapi-campaigns-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/campaigns-campaigns.yaml
  description: Outbound calling campaigns — upload a customer list and schedule batched outbound calls against
    one or more assistants and phone numbers with concurrency and retry policies.
- aid: vapi-ai:vapi-analytics-api
  name: Vapi Analytics API
  tags:
  - Analytics
  - Voice AI
  - Reporting
  humanURL: https://docs.vapi.ai/api-reference/analytics/create
  properties:
  - url: https://docs.vapi.ai/api-reference/analytics/create
    type: Documentation
  - url: openapi/vapi-analytics-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/analytics-analytics.yaml
  description: Run aggregate analytics queries across calls — group by assistant, time bucket, status,
    end-reason, success evaluation, cost, and duration — for dashboards and chargeback reporting.
- aid: vapi-ai:vapi-insight-api
  name: Vapi Insight API
  tags:
  - Insight
  - Voice AI
  - Observability
  humanURL: https://docs.vapi.ai/api-reference/insights/list
  properties:
  - url: https://docs.vapi.ai/api-reference/insights/list
    type: Documentation
  - url: openapi/vapi-insight-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/insight-insight.yaml
  description: Define and run Insight queries across call data, including preview-before-save and on-demand
    runs, to extract structured signals from conversation transcripts.
- aid: vapi-ai:vapi-observability-api
  name: Vapi Observability Scorecard API
  tags:
  - Observability
  - Scorecard
  - Voice AI
  - Evaluation
  humanURL: https://docs.vapi.ai/api-reference/scorecards/list
  properties:
  - url: https://docs.vapi.ai/api-reference/scorecards/list
    type: Documentation
  - url: openapi/vapi-observability-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/observability-observability.yaml
  description: Define LLM-graded scorecards that automatically evaluate every call against your defined
    success criteria and produce structured scores for trend analysis and regression detection.
- aid: vapi-ai:vapi-eval-api
  name: Vapi Eval API
  tags:
  - Eval
  - Voice AI
  - Testing
  humanURL: https://docs.vapi.ai/api-reference/evals/list
  properties:
  - url: https://docs.vapi.ai/api-reference/evals/list
    type: Documentation
  - url: openapi/vapi-eval-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/eval-eval.yaml
  description: Create test suites that simulate end-user behavior against an assistant, run them on demand,
    and inspect per-run pass/fail and judge output for regression testing of voice agents.
- aid: vapi-ai:vapi-structured-outputs-api
  name: Vapi Structured Outputs API
  tags:
  - Structured Outputs
  - Voice AI
  humanURL: https://docs.vapi.ai/api-reference/structured-outputs/list
  properties:
  - url: https://docs.vapi.ai/api-reference/structured-outputs/list
    type: Documentation
  - url: openapi/vapi-structured-outputs-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/structured-outputs-structured-outputs.yaml
  description: Define JSON-Schema-driven structured outputs that the assistant must populate from a call,
    plus an on-demand /structured-output/run endpoint to backfill outputs against an existing transcript.
- aid: vapi-ai:vapi-provider-resources-api
  name: Vapi Provider Resources API
  tags:
  - Provider Resources
  - Voice AI
  - Integrations
  humanURL: https://docs.vapi.ai/api-reference/provider-resources/list
  properties:
  - url: https://docs.vapi.ai/api-reference/provider-resources/list
    type: Documentation
  - url: openapi/vapi-provider-resources-api-openapi.yml
    type: OpenAPI
  - type: NaftikoCapability
    url: capabilities/provider-resources-provider-resources.yaml
  description: Generic CRUD over provider-side resources (e.g. ElevenLabs voices, Cartesia voices, Deepgram
    custom models) so they can be created and managed through Vapi without leaving the platform.
name: Vapi
tags:
- AI
- Voice AI
- Voice Agents
- Conversational AI
- Telephony
- Real-Time
- Transcription
- Text-to-Speech
- LLM
- Agents
- MCP
kind: contract
image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
access: 3rd-Party
common:
- url: https://vapi.ai
  type: Portal
- url: https://docs.vapi.ai
  name: Vapi Docs
  type: Documentation
- url: https://api.vapi.ai/api
  name: Swagger UI
  type: Documentation
- url: https://api.vapi.ai/api-json
  name: Raw OpenAPI JSON
  type: OpenAPI
- url: https://docs.vapi.ai/quickstart
  name: Quickstart
  type: GettingStarted
- url: https://dashboard.vapi.ai
  name: Vapi Dashboard
  type: SignUp
- url: https://status.vapi.ai
  name: Vapi Status
  type: StatusPage
- url: https://vapi.ai/pricing
  name: Vapi Pricing
  type: Pricing
- url: https://discord.gg/pUFNcf2WmH
  name: Vapi Discord
  type: Forum
- url: https://vapi.ai/blog
  name: Vapi Blog
  type: Blog
- url: https://vapi.ai/changelog
  name: Vapi Changelog
  type: ChangeLog
- url: https://github.com/VapiAI
  name: Vapi GitHub
  type: GitHubOrganization
- url: https://github.com/VapiAI/server-sdk-typescript
  name: TypeScript Server SDK
  type: SDK
- url: https://github.com/VapiAI/server-sdk-python
  name: Python Server SDK
  type: SDK
- url: https://github.com/VapiAI/server-sdk-csharp
  name: C# Server SDK
  type: SDK
- url: https://github.com/VapiAI/server-sdk-ruby
  name: Ruby Server SDK
  type: SDK
- url: https://github.com/VapiAI/server-sdk-php
  name: PHP Server SDK
  type: SDK
- url: https://github.com/VapiAI/client-sdk-web
  name: Web Client SDK
  type: SDK
- url: https://github.com/VapiAI/client-sdk-python
  name: Python Client SDK
  type: SDK
- url: https://github.com/VapiAI/client-sdk-react-native
  name: React Native Client SDK
  type: SDK
- url: https://github.com/VapiAI/client-sdk-ios
  name: iOS Client SDK
  type: SDK
- url: https://github.com/VapiAI/client-sdk-html-script-tag
  name: HTML Script Tag Client SDK
  type: SDK
- url: https://github.com/VapiAI/mcp-server
  name: Vapi MCP Server
  type: Tool
- url: https://github.com/VapiAI/skills
  name: Vapi Agent Skills
  type: Tool
- url: https://github.com/VapiAI/gitops
  name: Vapi GitOps
  type: Tool
- url: https://github.com/VapiAI/docs
  name: Vapi Docs Repo
  type: CodeExamples
- url: https://docs.vapi.ai/server-url
  name: Server URL (Webhooks)
  type: Webhooks
- url: https://docs.vapi.ai/server-url/events
  name: Server Events
  type: Webhooks
- url: https://trust.vapi.ai
  name: Vapi Trust Center
  type: TrustCenter
- url: https://vapi.ai/privacy
  type: PrivacyPolicy
- url: https://vapi.ai/terms-of-service
  type: TermsOfService
- url: https://vapi.ai/aup
  type: TermsOfService
- url: https://x.com/Vapi_AI
  type: Twitter
- url: https://www.linkedin.com/company/vapi-ai
  type: LinkedIn
- url: https://www.ycombinator.com/companies/vapi
  name: Y Combinator Profile
  type: Documentation
- url: plans/vapi-ai-plans-pricing.yml
  type: Plans
- url: rate-limits/vapi-ai-rate-limits.yml
  type: RateLimits
- url: finops/vapi-ai-finops.yml
  type: FinOps
- type: Features
  data:
  - Sub-700ms voice-to-voice latency orchestration layer
  - Transcriber + LLM + voice (TTS) modular pipeline with multi-provider choice
  - Bring your own provider keys to pay providers at cost
  - Assistants, Squads (multi-agent handoff), Sessions (persistent state)
  - Inbound and outbound calling over Twilio, Telnyx, Vonage, vapi.phoneNumber, and SIP
  - Campaigns for batched outbound calling with concurrency/retry
  - Tools (function, transfer-call, end-call, DTMF, hangup, voicemail, MCP, query, Make, Zapier, GHL, KB)
  - Server URL webhooks for real-time call events and function execution
  - Per-call mono/stereo/customer/assistant/video recordings, PCAP packet captures, call logs
  - Analytics, Insights, Observability Scorecards, and Evals for production monitoring and regression testing
  - Structured Outputs for JSON-schema-constrained extraction from calls
  - Chats API (text channel) and OpenAI-compatible /chat/responses
  - Official SDKs - server (TS, Python, C#, Ruby, PHP) and client (Web, Python, React Native, iOS, HTML)
  - Vapi MCP Server for Model Context Protocol integration
  - HIPAA and Zero Data Retention add-ons; SOC2 and PCI on Scale plan
  - $0.05/min Vapi orchestration fee on Build plan; model and voice costs passed at cost
  sources:
  - https://vapi.ai/pricing
  - https://docs.vapi.ai
  - https://api.vapi.ai/api
  - https://github.com/VapiAI
  - https://status.vapi.ai
  updated: '2026-05-24'
created: '2026-05-24T00:00:00.000Z'
modified: '2026-05-24'
position: Consuming
description: Vapi is a San Francisco-based voice AI platform that lets developers build real-time, low-latency
  voice agents over phone, web, and SIP. It orchestrates three modular components — a transcriber (STT), an
  LLM, and a voice (TTS) — into a sub-700ms voice-to-voice pipeline, with first-class support for tools/function
  calling, multi-agent squads, outbound campaigns, persistent sessions, structured outputs, recording artifacts,
  evaluation scorecards, and a full REST API plus official SDKs in TypeScript, Python, C#, Ruby, PHP, and
  client SDKs for Web, React Native, iOS, and Python. Vapi is a Y Combinator company.
maintainers:
- FN: Kin Lane
  email: info@apievangelist.com
  X: apievangelist
  url: https://apievangelist.com
specificationVersion: '0.16'