Cresta

aid: cresta
name: Cresta
description: Cresta is a Mountain View / Sunnyvale, California contact center AI company spun out of the Stanford AI Lab and
  founded in 2017 by Zayd Enam, Tim Shi, and Sebastian Thrun. The platform unifies human and AI agents for the enterprise
  contact center across voice, chat, and SMS, combining real-time agent assist, autonomous voice and digital AI agents, conversation
  intelligence, a knowledge agent, and automated quality management. Cresta runs a multi-model architecture composed of 20+
  large and small language models, fine-tuned on customer-specific transcripts and synthetic data, with enterprise guardrails,
  supervisory models, and a no-code orchestration surface. The AI Agent supports API-based function calling and Model Context
  Protocol (MCP) for standardized tool access. Voice integrations span Five9, Genesys (Cloud CX and Engage), NICE CXone, Amazon
  Connect, Twilio Flex, Talkdesk, 8x8, Vonage, Gladly, TCN, RingCX, Avaya Infinity, Cisco UCCE/PCCE/UCCX, and SIPREC across
  Oracle, Ribbon, Avaya SBC, and Cisco CUBE via SIP, PSTN transfer, CCaaS native streaming, WebSocket, gRPC, and raw RTP.
  Cresta is privately held with $270M+ raised across rounds led by Greylock, Andreessen Horowitz, Sequoia, and Tiger Global,
  with strategic investors including Genesys, Five9, Accenture, Comcast, Qualcomm, JP Morgan, and Workday Ventures. The Cresta
  API and SDK are private and gated behind a customer / partner engagement; there is no public OpenAPI specification, no public
  SDK release, and no public developer self-service portal.
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/cresta.png
tags:
- AI
- Artificial Intelligence
- Contact Center
- Contact Center AI
- CCaaS
- Customer Experience
- Conversational AI
- Voice AI
- Agent Assist
- Conversation Intelligence
- Knowledge Agent
- Quality Management
- Real-Time Coaching
- After-Call Automation
- Enterprise AI
- MCP
url: https://raw.githubusercontent.com/api-evangelist/cresta/refs/heads/main/apis.yml
created: '2026-05-24'
modified: '2026-05-24'
specificationVersion: '0.20'
apis: []
common:
- type: TrustCenter
  url: security/cresta-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/cresta-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/cresta-domain-security.yml
- type: Website
  url: https://cresta.com
- type: Portal
  url: https://cresta.com/ai-platform
- type: Documentation
  url: https://docs.cresta.com
- type: Documentation
  url: https://developers.cresta.com
- type: Product
  url: https://cresta.com/ai-agent
- type: Product
  url: https://cresta.com/agent-assist
- type: Product
  url: https://cresta.com/conversation-intelligence
- type: Product
  url: https://cresta.com/knowledge-agent
- type: Product
  url: https://cresta.com/quality-management
- type: Company
  url: https://cresta.com/about
- type: Careers
  url: https://cresta.com/careers
- type: Blog
  url: https://cresta.com/blog
- type: Newsroom
  url: https://cresta.com/news
- type: Webinars
  url: https://cresta.com/webinars
- type: Customers
  url: https://cresta.com/customers
- type: TrustCenter
  url: https://cresta.com/trust
- type: PrivacyPolicy
  url: https://cresta.com/privacy
- type: TermsOfService
  url: https://cresta.com/terms
- type: Security
  url: https://cresta.com/security
- type: Support
  url: https://cresta.com/support
- type: Login
  url: https://cresta.com/login
- type: StatusPage
  url: https://cresta.com/status
- type: ContactSales
  url: https://cresta.com/demo
- type: GitHubOrganization
  url: https://github.com/cresta
- type: LinkedIn
  url: https://www.linkedin.com/company/cresta-inc
- type: Twitter
  url: https://twitter.com/Cresta
- type: YouTube
  url: https://www.youtube.com/@CrestaAI
- type: Integrations
  data:
  - name: Five9
    description: Voice integration with Five9 Intelligent CX Platform via native streaming.
  - name: Genesys Cloud CX
    description: Native real-time voice and digital streaming integration with Genesys Cloud CX.
  - name: Genesys Engage
    description: On-premise / hybrid integration with Genesys Engage.
  - name: NICE CXone
    description: Real-time voice and digital integration with NICE CXone.
  - name: Amazon Connect
    description: Real-time voice integration with Amazon Connect via Kinesis Video Streams.
  - name: Twilio Flex
    description: Real-time voice and digital integration with Twilio Flex via Media Streams.
  - name: Talkdesk
    description: Voice and digital channel integration with Talkdesk.
  - name: 8x8
    description: Voice integration with 8x8 contact center.
  - name: Vonage
    description: Voice integration with Vonage Contact Center.
  - name: Gladly
    description: Digital channel integration with Gladly.
  - name: TCN
    description: Voice integration with TCN cloud contact center.
  - name: RingCX
    description: Voice integration with RingCentral RingCX.
  - name: Avaya Infinity
    description: Voice integration with Avaya Infinity Experience Platform.
  - name: Cisco UCCE / PCCE / UCCX
    description: On-premise Cisco contact center integration via desktop capture and SIP.
  - name: Avaya (on-prem)
    description: On-premise Avaya integration.
  - name: SIPREC
    description: SIPREC recording integration across Oracle, Ribbon, Avaya SBC, and Cisco CUBE.
  - name: Salesforce
    description: CRM integration for customer context and screen pop.
  - name: Model Context Protocol (MCP)
    description: Standardized tool access for AI Agent function calling.
- type: Investors
  data:
  - Greylock
  - Andreessen Horowitz (a16z)
  - Sequoia Capital
  - Tiger Global
  - Accenture
  - Comcast Ventures
  - Five9 (strategic)
  - Genesys (strategic)
  - JP Morgan
  - LG Ventures
  - Qatar Investment Authority
  - Qualcomm Ventures
  - World Innovation Lab
  - Workday Ventures
- type: Features
  data:
  - Cresta AI Agent — autonomous voice, chat, and SMS agents resolving end-to-end across 30+ languages
  - Agent Assist — real-time AI guidance, knowledge surfacing, and next-best-action for live human agents
  - Conversation Intelligence — automated analysis of 100% of customer conversations for insight and revenue surfacing
  - Knowledge Agent — proactive real-time answer retrieval from enterprise knowledge bases
  - Quality Management — automated QA scoring across 100% of contact center conversations
  - Multi-model architecture combining 20+ large and small language models tuned for contact center tasks
  - Fine-tuning on customer-proprietary transcripts plus purpose-built synthetic datasets
  - No-code Discover / Build / Test / Deploy / Optimize lifecycle for AI workflows
  - Agent Operations Center for real-time monitoring, supervision, and intervention
  - Enterprise guardrails, supervisory models, and continuous threat detection
  - API-based function calling and Model Context Protocol (MCP) tool access from AI Agent
  - Bidirectional metadata exchange (caller ID, IVR selections, routing data, conversation summaries) during transfers and
    handoffs
  - Voice transport via SIP trunking, PSTN transfer, CCaaS native streaming, WebSocket, gRPC, and raw RTP
  - Pull-mode audio retrieval from cloud storage (e.g., AWS KVS) or direct desktop capture
  - Warm transfer, cold transfer, conference bridge, and multi-party call tracking
  - Shared conversation memory across channels and human ↔ AI handoffs
  - Configurable voice persona — tone, empathy, communication style, pacing, pronunciation
  - SOC 2, ISO 27001, HIPAA, and GDPR compliance posture
  - Private, gated API and SDK — no public OpenAPI, no public SDK release, no self-service developer signup
  sources:
  - https://cresta.com
  - https://cresta.com/ai-platform
  - https://cresta.com/ai-agent
  - https://cresta.com/blog/the-three-pillars-of-voice-integration-building-hybrid-ai-contact-centers-that-work-with-your-existing-infrastructure
  - https://docs.cresta.com
  - https://developers.cresta.com
  updated: '2026-05-24'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com