Siena

Siena AI is an empathic AI agent platform built for commerce brands. It combines AI automation with human empathy to handle customer service across email, chat, SMS, social, and WhatsApp, and integrates with Shopify, Gorgias, Zendesk, Kustomer, Recharge, Klaviyo and 20+ commerce tools. Its agents cover support, shopping, reviews, QA, order tracking, and post-purchase workflows, letting brands automate 60-80% of support tickets while preserving brand voice. Siena is backed by Sierra Ventures and holds SOC 2 Type II, GDPR, CPRA, and HIPAA compliance.

Siena is profiled on the APIs.io network. Tagged areas include Company, AI, AI Agents, Customer Service, and Customer Experience.

Siena’s developer surface includes documentation, pricing, engineering blog, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub
24.4/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyAIAI AgentsCustomer ServiceCustomer ExperienceConversational AIEcommerceSupport Automation

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 24.4/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 3.4 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/siena: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Siena Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Siena Vulnerability Disclosure

Hackerone · contact published

SECURITY

Siena Trust Center

SOC 2 Type II, GDPR, CPRA, HIPAA

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login
Login

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle
Lifecycle

Access & Security 5

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 TrustCenter
TrustCenter
 Compliance
Compliance
 VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security

Operate 1

Status, limits, changes, and where to get help

StatusPage
StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: siena
name: Siena
description: Siena AI is an empathic AI agent platform built for commerce brands. It combines AI automation with human empathy
  to handle customer service across email, chat, SMS, social, and WhatsApp, and integrates with Shopify, Gorgias, Zendesk,
  Kustomer, Recharge, Klaviyo and 20+ commerce tools. Its agents cover support, shopping, reviews, QA, order tracking, and
  post-purchase workflows, letting brands automate 60-80% of support tickets while preserving brand voice. Siena is backed
  by Sierra Ventures and holds SOC 2 Type II, GDPR, CPRA, and HIPAA compliance.
url: https://raw.githubusercontent.com/api-evangelist/siena/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://framerusercontent.com/assets/FHZo6GH2CeM1egfYU9t6ZdbpY.jpg
x-type: company
x-source: vc-portfolio
x-backed-by:
- sierra-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- AI
- AI Agents
- Customer Service
- Customer Experience
- Conversational AI
- Ecommerce
- Support Automation
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://siena.cx/
- type: Documentation
  url: https://docs.siena.cx/
- type: Pricing
  url: https://www.siena.cx/pricing
- type: Blog
  url: https://www.siena.cx/blog
- type: Login
  url: https://app.siena.cx/
- type: TermsOfService
  url: https://www.siena.cx/terms-of-service
- type: PrivacyPolicy
  url: https://www.siena.cx/privacy-policy
- type: Integrations
  url: https://www.siena.cx/integrations
- type: StatusPage
  url: https://status.siena.cx/
- type: LLMsTxt
  url: llms/siena-llms.txt
- type: DomainSecurity
  url: security/siena-domain-security.yml
- type: Lifecycle
  url: lifecycle/siena-lifecycle.yml
- type: TrustCenter
  url: security/siena-trust-center.yml
- type: Compliance
  url: https://sienaai.trust.site/
- type: VulnerabilityDisclosure
  url: security/siena-vulnerability-disclosure.yml
- type: Security
  url: security/siena-vulnerability-disclosure.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 6
  pass: local-v1