Sierra is an enterprise conversational AI platform co-founded by Bret Taylor that builds and operates customer-facing AI agents across chat, SMS, WhatsApp, email, voice, and ChatGPT. Its Agent OS includes Agent Studio for building agents, Ghostwriter for agent generation from SOPs and transcripts, Insights for analytics, an Agent Data Platform for personalization, Voice Agents, and Live Assist for human handoff. Sierra is enterprise sales-led with no self-serve public developer API; integrations and Agent SDK access are provisioned through customer engagements.
Sierra publishes 1 API on the APIs.io network. Tagged areas include Agents, Artificial Intelligence, Chat, Conversational AI, and Customer Experience.
Sierra’s developer surface includes engineering blog, pricing, support, developer portal, documentation, and 15 more developer resources.
Sierra Agent OS is the enterprise platform for building, deploying, and operating customer-facing AI agents. It includes Agent Studio, Ghostwriter, Insights, the Agent Data Plat...
aid: sierra
name: Sierra
description: Sierra is an enterprise conversational AI platform co-founded by Bret Taylor that builds and operates customer-facing
AI agents across chat, SMS, WhatsApp, email, voice, and ChatGPT. Its Agent OS includes Agent Studio for building agents,
Ghostwriter for agent generation from SOPs and transcripts, Insights for analytics, an Agent Data Platform for personalization,
Voice Agents, and Live Assist for human handoff. Sierra is enterprise sales-led with no self-serve public developer API;
integrations and Agent SDK access are provisioned through customer engagements.
accessModel:
pricing: free
onboarding: unknown
trial: false
try_now: false
public: false
label: Free
confidence: medium
source:
- plans
generated: '2026-07-22'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sierra.png
url: https://raw.githubusercontent.com/api-evangelist/sierra/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-08-08'
specificationVersion: '0.23'
type: Index
access: 3rd-Party
position: Producer
tags:
- Agents
- Artificial Intelligence
- Chat
- Conversational AI
- Customer Experience
- Customer Service
- Enterprise
- Voice
tags_raw:
- Agents
- AI
- Chat
- Conversational AI
- Customer Experience
- Customer Service
- Enterprise
- Voice
apis:
- aid: sierra:agent-os
name: Sierra Agent OS
description: Sierra Agent OS is the enterprise platform for building, deploying, and operating customer-facing AI agents.
It includes Agent Studio, Ghostwriter, Insights, the Agent Data Platform, Voice Agents, and Live Assist. Sierra references
an Agent SDK in product materials but does not publish a public API reference; access is provisioned through enterprise
engagement.
humanURL: https://sierra.ai/platform
tags:
- Agents
- Conversational AI
- Enterprise
- SDK
- Voice
properties:
- type: Documentation
url: https://sierra.ai/platform
common:
- type: TrustCenter
url: security/sierra-trust-center.yml
- type: VulnerabilityDisclosure
url: security/sierra-vulnerability-disclosure.yml
- type: DomainSecurity
url: security/sierra-domain-security.yml
- type: Website
url: https://sierra.ai
- type: Blog
url: https://sierra.ai/blog
- type: Customers
url: https://sierra.ai/customers
- type: Pricing
url: https://sierra.ai/contact
- type: TermsOfService
url: https://sierra.ai/legal/terms-of-service
- type: PrivacyPolicy
url: https://sierra.ai/legal/privacy-policy
- type: Support
url: https://sierra.ai/contact
- type: GitHubOrganization
url: https://github.com/sierra-ai
- type: LinkedIn
url: https://www.linkedin.com/company/sierra-ai
- type: Login
url: https://app.sierra.ai
- type: Features
data:
- name: Agent Studio
description: Dashboard for building, configuring, optimizing, and managing customer-facing AI agents.
- name: Ghostwriter
description: Agent-building agent that generates production-ready agents from SOPs, transcripts, or plain English descriptions.
- name: Insights
description: Analytics suite covering conversation Explorer, proactive Monitors, multivariate Experiments, and tool-call
Observability.
- name: Agent Data Platform
description: Integrates customer context, conversation history, and data warehouses for personalization.
- name: Voice Agents
description: AI agents deployable across voice, chat, SMS, WhatsApp, email, and ChatGPT channels.
- name: Live Assist
description: Seamless escalation and human-in-the-loop handoff from AI agents to live customer service reps.
- type: UseCases
data:
- name: Customer Service Automation
description: Resolve customer support inquiries autonomously across channels.
- name: Voice IVR Replacement
description: Replace traditional IVR with natural conversational voice agents.
- name: Subscription Retention
description: Reduce subscription cancellations through proactive agent engagement.
- type: Customers
data:
- name: Rocket Mortgage
- name: SoFi
- name: Chime
- name: Brex
- name: Gap Inc.
- name: SiriusXM
- name: Wayfair
- name: Sutter Health
- name: Discord
- name: Redfin
- name: Rivian
- name: ADT
- name: CLEAR
- name: Singtel
- name: Tubi
- type: Integrations
data:
- name: Google Cloud
description: Data connectivity and infrastructure partner.
- name: Databricks
description: Data warehouse and ML platform connector for agent context.
- name: Snowflake
description: Data warehouse connector for the Agent Data Platform.
- name: Redis
description: Real-time data and cache integration.
- name: AWS
description: Cloud infrastructure and data connector.
- type: Compliance
data:
- name: SOC 2
- name: ISO 27001
- name: ISO 42001
- name: HIPAA
- name: GDPR
- name: EU AI Act
- type: Portal
url: https://sierra.ai
- type: Documentation
url: https://docs.sierra.ai
- type: Resources
url: https://sierra.ai/resources
- type: Careers
url: https://sierra.ai/careers
- type: Contact
url: https://sierra.ai/contact
- type: Events
url: https://sierra.ai/summit
- type: X
url: https://twitter.com/sierraplatform
- type: Solutions
data:
- name: Financial Services
description: Vertical solution for banks, fintechs, and lenders with compliance tooling and case templates.
- name: Healthcare
description: HIPAA-aligned deployments for payers, providers, and digital health.
- name: Telecommunications
description: Carrier-grade agents for plan changes, troubleshooting, and retention.
- name: Media and Subscriptions
description: Subscription lifecycle and content support.
- name: Travel and Hospitality
description: Booking, itinerary changes, and concierge experiences (Woodside Collection).
- name: Retail
description: Pre-purchase, post-purchase, and loyalty agents.
- name: Technology
description: Developer tools and SaaS support workflows.
url: ''
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
url: https://apievangelist.com
x-merged-from:
- sierra-ai