Expo

Expo is a React Native development platform providing cloud infrastructure for building, submitting, updating, and managing mobile apps. Expo Application Services (EAS) delivers REST and CLI-driven APIs for EAS Build (cloud compilation and code signing for Android and iOS), EAS Submit (automated App Store and Google Play submissions), EAS Update (over-the-air JavaScript bundle delivery), EAS Workflows (CI/CD pipelines with cron and Slack integration), EAS Hosting (edge deployment of Expo Router and React Native web apps), EAS Insights (analytics), EAS Observe (performance monitoring), and a Push Notifications broker. All services are accessible programmatically via the eas-cli, Personal Access Tokens, or Robot User tokens, and support webhooks for build and submission events.

Expo publishes 7 APIs on the APIs.io network. Tagged areas include React Native, Mobile Development, Build Automation, Over-the-Air Updates, and CI/CD.

The Expo catalog on APIs.io includes 1 JSON-LD context.

Expo’s developer surface includes documentation, engineering blog, pricing, changelog, CLI, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

34.6/100 thin ▬ flat Agent 9/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemium

7 APIs

React Native Mobile Development Build Automation Over-the-Air Updates CI/CDApp Store SubmissionPush NotificationsCloud BuildDeveloper Tools

Kin Score

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

Composite quality — 34.6/100 · thin

Contract Quality 3.6 / 25

Developer Ergonomics 6.2 / 20

Access Clarity 11.6 / 20

Operational Transparency 5.8 / 13

Contract Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 9/100 · agent aware

Machine-Readable Contract 0 / 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 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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/expo: 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 7

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

EAS Build API

Cloud compilation and code-signing service for Android and iOS React Native apps. Submits build jobs via eas-cli or programmatic token access, returns build artifacts, and fires...

EAS Submit API

Automated upload service that publishes compiled app binaries to the Apple App Store and Google Play Store directly from the cloud. Fires SUBMIT webhooks on completion. Removes ...

EAS Update API

Over-the-air update delivery service that pushes JavaScript bundle fixes directly to end users without requiring a full app store submission. Tracks Monthly Active Users (MAU) a...

EAS Workflows API

CI/CD automation service for React Native apps supporting scheduled cron jobs, Slack integration, and automated build and release pipelines. Extends EAS Build and Submit with wo...

EAS Hosting API

Edge deployment service for Expo Router and React Native web applications, including API routes. Provides 100,000 monthly requests, 1 million CPU-ms, and 1 GB storage on all pla...

Push Notifications API

Expo's hosted push notification broker that abstracts Apple APNs and Google FCM into a single REST endpoint. Delivers push messages to iOS and Android devices registered with th...

EAS Webhooks API

Event notification system that delivers HTTP POST payloads to configured endpoints when EAS Build or EAS Submit jobs complete. Payloads are signed with HMAC-SHA1 using a shared ...

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Expo Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Expo Rate Limits

0 limits

RATE LIMITS

FinOps 1

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

Expo Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Expo Context

11 classes · 33 properties

JSON-LD

Security Posture 3

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

Expo Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Expo Vulnerability Disclosure

security.txt · contact published

SECURITY

Expo Trust Center

SOC 2, GDPR

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

CLI

CLI

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

StatusPage

StatusPage

ChangeLog

ChangeLog

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: expo
name: Expo
description: 'Expo is a React Native development platform providing cloud infrastructure for building, submitting, updating,
  and managing mobile apps. Expo Application Services (EAS) delivers REST and CLI-driven APIs for EAS Build (cloud compilation
  and code signing for Android and iOS), EAS Submit (automated App Store and Google Play submissions), EAS Update (over-the-air
  JavaScript bundle delivery), EAS Workflows (CI/CD pipelines with cron and Slack integration), EAS Hosting (edge deployment
  of Expo Router and React Native web apps), EAS Insights (analytics), EAS Observe (performance monitoring), and a Push Notifications
  broker. All services are accessible programmatically via the eas-cli, Personal Access Tokens, or Robot User tokens, and
  support webhooks for build and submission events.

  '
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
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/expo.png
url: https://raw.githubusercontent.com/api-evangelist/expo/refs/heads/main/apis.yml
created: 2026-06-13
modified: 2026-06-13
specificationVersion: '0.23'
tags:
- React Native
- Mobile Development
- Build Automation
- Over-the-Air Updates
- CI/CD
- App Store Submission
- Push Notifications
- Cloud Build
- Developer Tools
apis:
- name: EAS Build API
  description: 'Cloud compilation and code-signing service for Android and iOS React Native apps. Submits build jobs via eas-cli
    or programmatic token access, returns build artifacts, and fires BUILD webhooks on completion. Supports Android (medium/large)
    and iOS (medium/large) resource classes with priority queues.

    '
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.expo.dev/build/introduction/
  baseURL: https://api.expo.dev
  tags:
  - Builds
  - Android
  - iOS
  - Code Signing
  - Cloud
  tags_raw:
  - Build
  - Android
  - iOS
  - Code Signing
  - Cloud
  properties:
  - type: Documentation
    url: https://docs.expo.dev/build/introduction/
  - type: Authentication
    url: https://docs.expo.dev/accounts/programmatic-access/
  - type: Webhooks
    url: https://docs.expo.dev/eas/webhooks/
  - type: CLI
    url: https://docs.expo.dev/eas/cli/
- name: EAS Submit API
  description: 'Automated upload service that publishes compiled app binaries to the Apple App Store and Google Play Store
    directly from the cloud. Fires SUBMIT webhooks on completion. Removes manual upload steps and reduces submission errors.

    '
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.expo.dev/submit/introduction/
  baseURL: https://api.expo.dev
  tags:
  - Submission
  - App Store
  - Google Play
  - Distribution
  properties:
  - type: Documentation
    url: https://docs.expo.dev/submit/introduction/
  - type: Authentication
    url: https://docs.expo.dev/accounts/programmatic-access/
  - type: Webhooks
    url: https://docs.expo.dev/eas/webhooks/
- name: EAS Update API
  description: 'Over-the-air update delivery service that pushes JavaScript bundle fixes directly to end users without requiring
    a full app store submission. Tracks Monthly Active Users (MAU) and delivers updates via global edge bandwidth. Supports
    branching and rollout controls.

    '
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.expo.dev/eas-update/introduction/
  baseURL: https://api.expo.dev
  tags:
  - Over-the-Air Updates
  - OTA
  - JavaScript
  - Deployment
  properties:
  - type: Documentation
    url: https://docs.expo.dev/eas-update/introduction/
  - type: Authentication
    url: https://docs.expo.dev/accounts/programmatic-access/
- name: EAS Workflows API
  description: 'CI/CD automation service for React Native apps supporting scheduled cron jobs, Slack integration, and automated
    build and release pipelines. Extends EAS Build and Submit with workflow orchestration. Includes 60 minutes free on the
    Free plan with usage-based pricing on paid tiers.

    '
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.expo.dev/eas/workflows/
  baseURL: https://api.expo.dev
  tags:
  - CI/CD
  - Automation
  - Workflows
  - Cron
  properties:
  - type: Documentation
    url: https://docs.expo.dev/eas/workflows/
  - type: Authentication
    url: https://docs.expo.dev/accounts/programmatic-access/
- name: EAS Hosting API
  description: 'Edge deployment service for Expo Router and React Native web applications, including API routes. Provides
    100,000 monthly requests, 1 million CPU-ms, and 1 GB storage on all plans, with global CDN delivery.

    '
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.expo.dev/eas/hosting/introduction/
  baseURL: https://api.expo.dev
  tags:
  - Hosting
  - Edge
  - Web
  - API Routes
  properties:
  - type: Documentation
    url: https://docs.expo.dev/eas/hosting/introduction/
  - type: Authentication
    url: https://docs.expo.dev/accounts/programmatic-access/
- name: Push Notifications API
  description: 'Expo''s hosted push notification broker that abstracts Apple APNs and Google FCM into a single REST endpoint.
    Delivers push messages to iOS and Android devices registered with the Expo Push Token system.

    '
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.expo.dev/push-notifications/overview/
  baseURL: https://exp.host
  tags:
  - Push Notifications
  - APNs
  - FCM
  - Mobile
  tags_raw:
  - Push Notifications
  - APNs
  - FCM
  - Mobile
  properties:
  - type: Documentation
    url: https://docs.expo.dev/push-notifications/overview/
  - type: Authentication
    url: https://docs.expo.dev/accounts/programmatic-access/
- name: EAS Webhooks API
  description: 'Event notification system that delivers HTTP POST payloads to configured endpoints when EAS Build or EAS Submit
    jobs complete. Payloads are signed with HMAC-SHA1 using a shared secret. Supports exponential back-off retry for failed
    deliveries.

    '
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.expo.dev/eas/webhooks/
  baseURL: https://api.expo.dev
  tags:
  - Webhook
  - Event
  - HMAC
  - Notification
  tags_raw:
  - Webhooks
  - Events
  - HMAC
  - Notifications
  properties:
  - type: Documentation
    url: https://docs.expo.dev/eas/webhooks/
  - type: Authentication
    url: https://docs.expo.dev/accounts/programmatic-access/
common:
- type: TrustCenter
  url: security/expo-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/expo-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/expo-domain-security.yml
- type: Website
  url: https://expo.dev
- type: Documentation
  url: https://docs.expo.dev
- type: GitHubOrg
  url: https://github.com/expo
- type: LinkedIn
  url: https://www.linkedin.com/company/expo-dev
- type: Blog
  url: https://expo.dev/blog
- type: Pricing
  url: https://expo.dev/pricing
- type: StatusPage
  url: https://status.expo.dev
- type: X
  url: https://x.com/expo
- type: ChangeLog
  url: https://expo.dev/changelog
- type: CLI
  url: https://github.com/expo/eas-cli
- type: Plans
  url: plans/expo-plans-pricing.yml
- type: RateLimits
  url: rate-limits/expo-rate-limits.yml
- type: FinOps
  url: finops/expo-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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