Stream

Stream (GetStream.io) provides scalable, API-first infrastructure for in-app chat messaging, activity feeds, audio/video calling and livestreaming, and AI moderation. The server-side platform is a documented REST API (base https://chat.stream-io-api.com for Chat) with JWT authentication, complemented by client SDKs that open a persistent WebSocket connection to receive real-time events - message.new, typing.start, user.presence.changed, reaction.new, notification.* and periodic health.check heartbeats. Products are metered on monthly active users (Chat) and participant minutes (Video), with Free/Maker, Standard (Startup) and Enterprise tiers.

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 Chat, Messaging, Activity Feeds, Video, and Audio.

The Stream catalog on APIs.io includes 2 event-driven AsyncAPI specifications and 1 Spectral governance ruleset.

Stream’s developer surface includes authentication, documentation, engineering blog, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

52.5/100 developing ▬ flat Agent 28/100 agent aware Front door AI 5/6 prominent saas Full breakdown ↓
scored 2026-09-21 · rubric v0.22.0

AccessFreemiumSelf serve⚡ Free to try

6 APIs

Chat MessagingActivity FeedsVideo Audio Moderation WebSocket Real-Time

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Content Compliance & Standards Management

BC-3780

Moderation

Kin Score

Kin Score How this is scored →
scored 2026-09-21 · rubric v0.22.0

Composite quality — 52.5/100 · developing

Contract Quality 14.1 / 23

Developer Ergonomics 6.9 / 18

Access Clarity 8.5 / 18

Operational Transparency 4.0 / 12

Contract Governance 1.2 / 11

Discoverability 6.7 / 9

Create-or-Update Ergonomics 7.2 / 10

Agent readiness — 28/100 · agent aware

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

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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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/getstream: 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.

Stream Activity Feeds API

Build scalable activity feeds and timelines - add activities to feeds, follow and unfollow feeds, aggregate and rank activities, and fan out to followers. Powers social timeline...

Stream Video and Audio API

Create and manage audio/video calls and livestreams - get-or-create calls, manage call members and permissions, start and stop recording, transcription, and broadcasting. Metere...

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.

Scroll for all 7

Open Collections 14

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

API Collection

OPEN COLLECTION

Stream Chat API (Server-side REST) Application API

OPEN COLLECTION

Stream Chat API (Server-side REST) Application Campaigns API

OPEN COLLECTION

Stream Chat API (Server-side REST) Application Channels API

OPEN COLLECTION

Stream Chat API (Server-side REST) Application Devices API

OPEN COLLECTION

Stream Chat API (Server-side REST) Application Members API

OPEN COLLECTION

Stream Chat API (Server-side REST) Application Messages API

OPEN COLLECTION

Stream Chat API (Server-side REST) Application Moderation API

OPEN COLLECTION

Stream Chat API (Server-side REST) Application Permissions API

OPEN COLLECTION

Stream Chat API (Server-side REST) Application Reactions API

OPEN COLLECTION

Stream Chat API (Server-side REST) Application Roles API

OPEN COLLECTION

Stream Chat API (Server-side REST) Application Threads API

OPEN COLLECTION

Stream Chat API (Server-side REST) Application Users API

OPEN COLLECTION

Stream Chat API (Server-side REST)

OPEN COLLECTION

Scroll for all 14

Pricing Plans 1

Published pricing tiers and plan structures.

Getstream Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Getstream Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Getstream Finops

FINOPS

Event Specifications 2

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

Stream Chat Realtime WebSocket API

AsyncAPI 2.6 description of Stream (GetStream.io) Chat's **real-time WebSocket** surface. Unlike the request/response server-side REST API (`https://chat.stream-io-api.com`, mod...

ASYNCAPI

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

8 rules · 1 errors 7 warnings

SPECTRAL

Security Posture 4

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

Getstream Authentication

apiKey/http · 2 schemes

SECURITY

Getstream Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Getstream Vulnerability Disclosure

disclosure policy published

SECURITY

Getstream Trust Center

SOC 2, ISO 27001, HIPAA, GDPR

SECURITY

Agentic Access 1

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

Getstream Agentic Access

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

659 operations · 497 acting

AGENTIC

Resources

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

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: getstream
url: https://raw.githubusercontent.com/api-evangelist/getstream/refs/heads/main/apis.yml
name: Stream
kind: company
description: Stream (GetStream.io) provides scalable, API-first infrastructure for in-app chat messaging, activity feeds,
  audio/video calling and livestreaming, and AI moderation. The server-side platform is a documented REST API (base https://chat.stream-io-api.com
  for Chat) with JWT authentication, complemented by client SDKs that open a persistent WebSocket connection to receive real-time
  events - message.new, typing.start, user.presence.changed, reaction.new, notification.* and periodic health.check heartbeats.
  Products are metered on monthly active users (Chat) and participant minutes (Video), with Free/Maker, Standard (Startup)
  and Enterprise tiers.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/getstream.png
tags:
- Chat
- Messaging
- Activity Feeds
- Video
- Audio
- Moderation
- WebSocket
- Real-Time
tags_raw:
- Chat
- Messaging
- Activity Feeds
- Video
- Audio
- Moderation
- WebSocket
- Real Time
created: '2026-07-03'
modified: '2026-07-03'
specificationVersion: '0.23'
apis:
- aid: getstream:getstream-activity-feeds-api
  name: Stream Activity Feeds API
  tags:
  - Activity Feeds
  - Timelines
  - Social
  tags_raw:
  - Activity Feeds
  - Timeline
  - Social
  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
  properties:
  - url: https://getstream.io/activity-feeds/docs/
    type: Documentation
  - url: https://getstream.io/activity-feeds/docs/rest/
    type: APIReference
  description: Build scalable activity feeds and timelines - add activities to feeds, follow and unfollow feeds, aggregate
    and rank activities, and fan out to followers. Powers social timelines, notification feeds, and news feeds.
- aid: getstream:getstream-video-audio-api
  name: Stream Video and Audio API
  tags:
  - Video
  - Audio
  - Calling
  - Live Stream
  tags_raw:
  - Video
  - Audio
  - Calling
  - Livestream
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://getstream.io/video/docs/api/
  baseURL: https://video.stream-io-api.com
  properties:
  - url: https://getstream.io/video/docs/api/
    type: Documentation
  - url: https://getstream.github.io/protocol/?urls.primaryName=Video
    type: APIReference
  description: Create and manage audio/video calls and livestreams - get-or-create calls, manage call members and permissions,
    start and stop recording, transcription, and broadcasting. Metered on participant minutes.
- aid: getstream:getstream-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/activity-feeds/docs/
  baseURL: https://api.stream-io-api.com
  tags:
  - product:chat
  properties:
  - type: OpenAPI
    url: openapi/getstream-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: getstream:getstream-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/activity-feeds/docs/
  baseURL: https://api.stream-io-api.com
  tags:
  - product:common
  properties:
  - type: OpenAPI
    url: openapi/getstream-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: getstream:getstream-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/activity-feeds/docs/
  baseURL: https://api.stream-io-api.com
  tags:
  - Product Feeds
  tags_raw:
  - product:feeds
  properties:
  - type: OpenAPI
    url: openapi/getstream-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: getstream:getstream-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/activity-feeds/docs/
  baseURL: https://api.stream-io-api.com
  tags:
  - product:moderation
  properties:
  - type: OpenAPI
    url: openapi/getstream-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: getstream:getstream-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/activity-feeds/docs/
  baseURL: https://api.stream-io-api.com
  tags:
  - product:video
  properties:
  - type: OpenAPI
    url: openapi/getstream-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: CapabilityMap
  url: capabilities/getstream-capability-edges.yml
  name: Stream Business Capability Map
- type: AgenticAccess
  url: agentic-access/getstream-agentic-access.yml
- type: TrustCenter
  url: security/getstream-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/getstream-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/getstream-domain-security.yml
- type: Authentication
  url: authentication/getstream-authentication.yml
- type: GitHubOrganization
  url: https://github.com/GetStream
- type: LinkedIn
  url: https://www.linkedin.com/company/getstream
- type: Website
  url: https://getstream.io
- type: Documentation
  url: https://getstream.io/chat/docs/
- type: Plans
  url: plans/getstream-plans-pricing.yml
- type: RateLimits
  url: rate-limits/getstream-rate-limits.yml
- type: FinOps
  url: finops/getstream-finops.yml
- url: https://getstream.io/blog/rss.xml
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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