Polyai

PolyAI builds enterprise-grade voice and chat AI agents that handle real customer service conversations across 24+ languages, with 99.994% production uptime. The PolyAI Platform exposes three REST API families — an Agents API to create, branch, configure and deploy agents through environments; a Conversations API to retrieve transcripts, audio, metrics and session data; and a Webhooks & Alerts surface for real-time event notifications — plus Chat, SMS, Outbound Calling, Handoff, DNI, External Events, Messaging (WebSocket) and a WebRTC Gateway. Authentication is header-based (x-api-key) with region-scoped keys, and a Python Agent Development Kit (ADK) offers a Git-like local build-pull-push workflow. Backed by Khosla Ventures and profiled in the API Evangelist network.

Polyai publishes 1 API on the APIs.io network. Tagged areas include Company, Conversational AI, Voice AI, Customer Service, and Contact Center.

The Polyai catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Polyai’s developer surface includes documentation, API reference, getting-started guide, authentication, CLI, and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub

35.6/100 thin ▬ flat Agent 23/100 agent aware library Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Conversational AI Voice AI Customer Service Contact Center Agents Speech Recognition Text-to-Speech Webhook Enterprise

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 35.6/100 · thin

Contract Quality 10.4 / 25

Developer Ergonomics 11.4 / 20

Access Clarity 1.6 / 20

Operational Transparency 2.4 / 13

Contract Governance 2.2 / 12

Discoverability 7.6 / 10

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/polyai: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

PolyAI Platform API

Build, run and observe PolyAI voice and chat agents from your own systems. Three REST API families (Agents, Conversations, Webhooks & Alerts) plus Chat, SMS, Outbound Calling, H...

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Polyai Webhooks

ASYNCAPI

Security Posture 2

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

Polyai Authentication

apiKey · 1 scheme

SECURITY

Polyai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

Lifecycle

Webhooks

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

CLI

CLI

Access & Security 3

Authentication, authorization, and security posture

Compliance

Compliance

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Deprecation

Deprecation

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: polyai
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/polyai.png
name: Polyai
description: PolyAI builds enterprise-grade voice and chat AI agents that handle real customer service conversations across
  24+ languages, with 99.994% production uptime. The PolyAI Platform exposes three REST API families — an Agents API to create,
  branch, configure and deploy agents through environments; a Conversations API to retrieve transcripts, audio, metrics and
  session data; and a Webhooks & Alerts surface for real-time event notifications — plus Chat, SMS, Outbound Calling, Handoff,
  DNI, External Events, Messaging (WebSocket) and a WebRTC Gateway. Authentication is header-based (x-api-key) with region-scoped
  keys, and a Python Agent Development Kit (ADK) offers a Git-like local build-pull-push workflow. Backed by Khosla Ventures
  and profiled in the API Evangelist network.
url: https://raw.githubusercontent.com/api-evangelist/polyai/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- khosla-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Conversational AI
- Voice AI
- Customer Service
- Contact Center
- Agents
- Speech Recognition
- Text-to-Speech
- Webhook
- Enterprise
tags_raw:
- Company
- Conversational AI
- Voice AI
- Customer Service
- Contact Center
- Agents
- Speech Recognition
- Text to Speech
- Webhooks
- Enterprise
apis:
- name: PolyAI Platform API
  description: Build, run and observe PolyAI voice and chat agents from your own systems. Three REST API families (Agents,
    Conversations, Webhooks & Alerts) plus Chat, SMS, Outbound Calling, Handoff, DNI, External Events, Messaging (WebSocket)
    and WebRTC Gateway. Header auth via x-api-key with region-scoped keys.
  humanURL: https://docs.poly.ai/api-reference/introduction
  baseURL: https://api.us.poly.ai
  tags:
  - Conversational AI
  - Voice AI
  - Agents
  - Webhook
  tags_raw:
  - Conversational AI
  - Voice AI
  - Agents
  - Webhooks
  properties:
  - type: Documentation
    url: https://docs.poly.ai/api-reference/introduction
  - type: GettingStarted
    url: https://docs.poly.ai/api-reference/quickstart
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.polyai.com/
- type: DeveloperPortal
  url: https://docs.poly.ai/
- type: Documentation
  url: https://docs.poly.ai/api-reference/introduction
- type: APIReference
  url: https://docs.poly.ai/api-reference/introduction
- type: GettingStarted
  url: https://docs.poly.ai/api-reference/quickstart
- type: GitHubOrganization
  url: https://github.com/PolyAI-LDN
- type: Compliance
  url: https://docs.poly.ai/legal/compliance
- type: LLMsTxt
  url: llms/polyai-llms.txt
- type: ErrorCatalog
  url: errors/polyai-error-codes.yml
- type: Authentication
  url: authentication/polyai-authentication.yml
- type: Conventions
  url: conventions/polyai-conventions.yml
- type: Lifecycle
  url: lifecycle/polyai-lifecycle.yml
- type: Deprecation
  url: lifecycle/polyai-lifecycle.yml
- type: Webhooks
  url: asyncapi/polyai-webhooks.yml
- type: Packages
  url: packages/polyai-packages.yml
- type: CLI
  url: cli/polyai-cli.yml
- type: Conformance
  url: conformance/polyai-conformance.yml
- type: DomainSecurity
  url: security/polyai-domain-security.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 10
  pass: local-v1

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