Stream website screenshot

Stream

Stream provides realtime APIs for chat messaging, video and audio (calls and rooms), activity feeds and moderation. Hosted on a global edge network with native SDKs for web, mobile (iOS, Android, Flutter, React Native) and game engines (Unity, Unreal). Stream publishes full OpenAPI specifications for its Chat, Video and Moderation server-side APIs.

Stream publishes 5 APIs on the APIs.io network, including product:chat API, product:common API, product:feeds API, and 2 more. Tagged areas include Real-Time, Chat, Messaging, Video, and Audio.

The Stream catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Stream’s developer surface includes authentication, documentation, pricing, GitHub presence, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub
38.6/100 thin ▬ flat Agent 39/100 agent ready Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessFreemiumSelf serve⚡ Free to try
6 APIs
Real-TimeChatMessagingVideoAudioActivity FeedsModerationSDK

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 38.6/100 · thin
Contract Quality 15.3 / 25
Developer Ergonomics 4.3 / 20
Access Clarity 6.8 / 20
Operational Transparency 3.4 / 13
Contract Governance 1.4 / 12
Discoverability 7.4 / 10
Agent readiness — 39/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 6 / 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 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
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/stream-io: 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 6

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

Stream Activity Feeds API

Server-side REST API for activity feeds — flat, aggregated, notification and ranked feeds, follow graph, reactions and personalisation. Powered by Stream's original feed engine.

Stream product:chat API

The product:chat API from Stream — 194 operation(s) for product:chat.

Stream product:common API

The product:common API from Stream — 54 operation(s) for product:common.

Stream product:feeds API

The product:feeds API from Stream — 69 operation(s) for product:feeds.

Stream product:moderation API

The product:moderation API from Stream — 56 operation(s) for product:moderation.

Stream product:video API

The product:video API from Stream — 121 operation(s) for product:video.

Open Collections 10

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Stream API

OPEN COLLECTION

Stream API

OPEN COLLECTION

Stream product:chat API

OPEN COLLECTION

Stream product:chat product:common API

OPEN COLLECTION

Stream product:chat product:feeds API

OPEN COLLECTION

Stream product:chat product:moderation API

OPEN COLLECTION

Stream product:chat product:video API

OPEN COLLECTION

Stream API

OPEN COLLECTION

Stream API

OPEN COLLECTION

Scroll for all 10

Pricing Plans 1

Published pricing tiers and plan structures.

Stream Io Plans Pricing

8 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Stream Io Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Stream Io Finops

FINOPS

Event Specifications 1

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

Stream Chat WebSocket API

AsyncAPI description of the Stream (GetStream) Chat realtime WebSocket API. Clients connect to `wss://chat.stream-io-api.com/connect` with a JWT user token and receive a stream ...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Stream API Rules

6 rules · 1 errors 5 warnings

SPECTRAL

Security Posture 4

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

Stream Io Authentication

apiKey · 3 schemes

SECURITY

Stream Io Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Stream Io Vulnerability Disclosure

disclosure policy published

SECURITY

Stream Io Trust Center

SOC 2, ISO 27001, HIPAA, GDPR

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Stream Io Agentic Access

659 operations · 497 acting · 18 human-in-the-loop

659 operations · 497 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

ProtocolPortal
ProtocolPortal

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub
GitHub

Access & Security 4

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 2

Status, limits, changes, and where to get help

StatusPage
StatusPage
 RateLimits
RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 Plans
Plans
 FinOps
FinOps

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: stream-io
url: https://raw.githubusercontent.com/api-evangelist/stream-io/refs/heads/main/apis.yml
name: Stream
kind: company
description: Stream provides realtime APIs for chat messaging, video and audio (calls and rooms), activity feeds and moderation.
  Hosted on a global edge network with native SDKs for web, mobile (iOS, Android, Flutter, React Native) and game engines
  (Unity, Unreal). Stream publishes full OpenAPI specifications for its Chat, Video and Moderation server-side APIs.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/stream-io.png
tags:
- Real-Time
- Chat
- Messaging
- Video
- Audio
- Activity Feeds
- Moderation
- SDK
tags_raw:
- Realtime
- Chat
- Messaging
- Video
- Audio
- Activity Feeds
- Moderation
- SDK
created: '2026-05-08'
modified: '2026-05-29'
specificationVersion: '0.23'
apis:
- aid: stream-io:feeds
  name: Stream Activity Feeds API
  description: Server-side REST API for activity feeds — flat, aggregated, notification and ranked feeds, follow graph, reactions
    and personalisation. Powered by Stream's original feed engine.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://getstream.io/activity-feeds/docs/
  baseURL: https://api.stream-io-api.com
  tags:
  - REST
  - Activity Feeds
  - Social
  properties:
  - type: Documentation
    url: https://getstream.io/activity-feeds/docs/
  - type: APIReference
    url: https://getstream.io/activity-feeds/docs/rest/
- aid: stream-io:stream-io-product-chat-api
  name: Stream product:chat API
  description: The product:chat API from Stream — 194 operation(s) for product:chat.
  humanURL: https://getstream.io/chat/docs/
  baseURL: https://chat.stream-io-api.com
  tags:
  - product:chat
  properties:
  - type: OpenAPI
    url: openapi/stream-io-product-chat-api-openapi.yml
  - type: Documentation
    url: https://getstream.io/chat/docs/
  - type: APIReference
    url: https://getstream.github.io/protocol/?urls.primaryName=Chat
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/chat-openapi.yaml
  - type: AsyncAPI
    url: asyncapi/stream-io-asyncapi.yml
  - type: SDKs
    url: https://getstream.io/chat/sdk/
  - type: Documentation
    url: https://getstream.io/video/docs/
  - type: APIReference
    url: https://getstream.github.io/protocol/?urls.primaryName=Video
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/video-openapi.yaml
  - type: SDKs
    url: https://getstream.io/video/sdk/
  - type: Documentation
    url: https://getstream.io/moderation/docs/
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/moderation-openapi.yaml
- aid: stream-io:stream-io-product-common-api
  name: Stream product:common API
  description: The product:common API from Stream — 54 operation(s) for product:common.
  humanURL: https://getstream.io/chat/docs/
  baseURL: https://chat.stream-io-api.com
  tags:
  - product:common
  properties:
  - type: OpenAPI
    url: openapi/stream-io-product-common-api-openapi.yml
  - type: Documentation
    url: https://getstream.io/chat/docs/
  - type: APIReference
    url: https://getstream.github.io/protocol/?urls.primaryName=Chat
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/chat-openapi.yaml
  - type: AsyncAPI
    url: asyncapi/stream-io-asyncapi.yml
  - type: SDKs
    url: https://getstream.io/chat/sdk/
  - type: Documentation
    url: https://getstream.io/video/docs/
  - type: APIReference
    url: https://getstream.github.io/protocol/?urls.primaryName=Video
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/video-openapi.yaml
  - type: SDKs
    url: https://getstream.io/video/sdk/
  - type: Documentation
    url: https://getstream.io/moderation/docs/
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/moderation-openapi.yaml
- aid: stream-io:stream-io-product-feeds-api
  name: Stream product:feeds API
  description: The product:feeds API from Stream — 69 operation(s) for product:feeds.
  humanURL: https://getstream.io/chat/docs/
  baseURL: https://chat.stream-io-api.com
  tags:
  - Product Feeds
  tags_raw:
  - product:feeds
  properties:
  - type: OpenAPI
    url: openapi/stream-io-product-feeds-api-openapi.yml
  - type: Documentation
    url: https://getstream.io/chat/docs/
  - type: APIReference
    url: https://getstream.github.io/protocol/?urls.primaryName=Chat
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/chat-openapi.yaml
  - type: AsyncAPI
    url: asyncapi/stream-io-asyncapi.yml
  - type: SDKs
    url: https://getstream.io/chat/sdk/
  - type: Documentation
    url: https://getstream.io/video/docs/
  - type: APIReference
    url: https://getstream.github.io/protocol/?urls.primaryName=Video
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/video-openapi.yaml
  - type: SDKs
    url: https://getstream.io/video/sdk/
  - type: Documentation
    url: https://getstream.io/moderation/docs/
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/moderation-openapi.yaml
- aid: stream-io:stream-io-product-moderation-api
  name: Stream product:moderation API
  description: The product:moderation API from Stream — 56 operation(s) for product:moderation.
  humanURL: https://getstream.io/chat/docs/
  baseURL: https://chat.stream-io-api.com
  tags:
  - product:moderation
  properties:
  - type: OpenAPI
    url: openapi/stream-io-product-moderation-api-openapi.yml
  - type: Documentation
    url: https://getstream.io/chat/docs/
  - type: APIReference
    url: https://getstream.github.io/protocol/?urls.primaryName=Chat
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/chat-openapi.yaml
  - type: AsyncAPI
    url: asyncapi/stream-io-asyncapi.yml
  - type: SDKs
    url: https://getstream.io/chat/sdk/
  - type: Documentation
    url: https://getstream.io/video/docs/
  - type: APIReference
    url: https://getstream.github.io/protocol/?urls.primaryName=Video
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/video-openapi.yaml
  - type: SDKs
    url: https://getstream.io/video/sdk/
  - type: Documentation
    url: https://getstream.io/moderation/docs/
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/moderation-openapi.yaml
- aid: stream-io:stream-io-product-video-api
  name: Stream product:video API
  description: The product:video API from Stream — 121 operation(s) for product:video.
  humanURL: https://getstream.io/chat/docs/
  baseURL: https://chat.stream-io-api.com
  tags:
  - product:video
  properties:
  - type: OpenAPI
    url: openapi/stream-io-product-video-api-openapi.yml
  - type: Documentation
    url: https://getstream.io/chat/docs/
  - type: APIReference
    url: https://getstream.github.io/protocol/?urls.primaryName=Chat
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/chat-openapi.yaml
  - type: AsyncAPI
    url: asyncapi/stream-io-asyncapi.yml
  - type: SDKs
    url: https://getstream.io/chat/sdk/
  - type: Documentation
    url: https://getstream.io/video/docs/
  - type: APIReference
    url: https://getstream.github.io/protocol/?urls.primaryName=Video
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/video-openapi.yaml
  - type: SDKs
    url: https://getstream.io/video/sdk/
  - type: Documentation
    url: https://getstream.io/moderation/docs/
  - type: OpenAPISource
    url: https://raw.githubusercontent.com/GetStream/protocol/main/openapi/moderation-openapi.yaml
common:
- type: AgenticAccess
  url: agentic-access/stream-io-agentic-access.yml
- type: TrustCenter
  url: security/stream-io-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/stream-io-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/stream-io-domain-security.yml
- type: Authentication
  url: authentication/stream-io-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/getstream
- type: Website
  url: https://getstream.io/
- type: Documentation
  url: https://getstream.io/docs/
- type: Pricing
  url: https://getstream.io/pricing/
- type: GitHub
  url: https://github.com/GetStream
- type: ProtocolPortal
  url: https://getstream.github.io/protocol/
- type: StatusPage
  url: https://status.getstream.io/
- type: Plans
  url: plans/stream-io-plans-pricing.yml
- type: RateLimits
  url: rate-limits/stream-io-rate-limits.yml
- type: FinOps
  url: finops/stream-io-finops.yml
- type: Integrations
  url: https://getstream.io/partners/
integrations:
- name: Stream
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com