Google Assistant

The Google Assistant API enables developers to embed the Google Assistant into devices and applications. It provides conversational interfaces through gRPC and REST endpoints for sending text or audio queries and receiving responses. The API supports device model and instance registration, custom Actions with intents and scenes, and the Actions SDK for building conversational experiences that extend the Assistant's capabilities.

Google Assistant publishes 1 API on the APIs.io network: Assistant API. Tagged areas include Actions on Google, Conversational AI, Google Assistant, Natural Language, and Smart Home.

The Google Assistant catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Google Assistant’s developer surface includes getting-started guide, pricing, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

46.3/100 developing ▬ flat Agent 22/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemium

1 APIs

Actions on GoogleConversational AIGoogle AssistantNatural LanguageSmart HomeVoice Assistant

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 46.3/100 · developing

Contract Quality 15.5 / 25

Developer Ergonomics 2.2 / 20

Commercial Clarity 10.0 / 20

Operational Transparency 4.8 / 13

Governance 7.0 / 12

Discoverability 6.9 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

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 7 / 7

Typed Event Surface 0 / 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

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/google-assistant: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Rate Limits 1

Documented rate limits and quota policies.

Google Assistant Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Source (apis.yml)

aid: google-assistant
name: Google Assistant
description: The Google Assistant API enables developers to embed the Google Assistant into devices and applications. It provides
  conversational interfaces through gRPC and REST endpoints for sending text or audio queries and receiving responses. The
  API supports device model and instance registration, custom Actions with intents and scenes, and the Actions SDK for building
  conversational experiences that extend the Assistant's capabilities.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/google-assistant.png
url: https://raw.githubusercontent.com/api-evangelist/google-assistant/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-05-19'
specificationVersion: '0.19'
tags:
- Actions on Google
- Conversational AI
- Google Assistant
- Natural Language
- Smart Home
- Voice Assistant
apis:
- aid: google-assistant:google-assistant-assistant-api
  name: Google Assistant Assistant API
  description: Interact with Google Assistant
  humanURL: https://developers.google.com/assistant
  baseURL: https://embeddedassistant.googleapis.com
  tags:
  - Assistant
  properties:
  - type: OpenAPI
    url: openapi/google-assistant-assistant-api-openapi.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/google-assistant/refs/heads/main/json-schema/google-assistant.json
  - type: JSONLD
    url: https://raw.githubusercontent.com/api-evangelist/google-assistant/refs/heads/main/json-ld/google-assistant.jsonld
common:
- type: AgenticAccess
  url: agentic-access/google-assistant-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/google-assistant-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/google-assistant-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/googlesamples
- type: GettingStarted
  url: https://developers.google.com/assistant/sdk/overview
- type: Pricing
  url: https://developers.google.com/assistant
- type: JSONLD
  url: https://raw.githubusercontent.com/api-evangelist/google-assistant/refs/heads/main/json-ld/google-assistant.jsonld
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Google Assistant

Kin Score

APIs 1

Google Assistant Assistant API

Open Collections 1

Google Assistant API

Pricing Plans 1

Google Assistant Plans Pricing

Rate Limits 1

Google Assistant Rate Limits

FinOps 1

Google Assistant Finops

Semantic Vocabularies 1

Google Assistant Context

Spectral Rules 1

Google Assistant API Rules

JSON Schema 1

Google Assistant API Schema

Security Posture 2

Google Assistant Domain Security

Google Assistant Vulnerability Disclosure

Agentic Access 1

Google Assistant Agentic Access

Resources