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 7 APIs on the APIs.io network, including Product:chat API, Product:common API, Product:feeds API, and 4 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

51.2/100 developing ▬ flat Agent 28/100 agent aware Front door AI 5/6 prominent saas Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0

AccessFreemiumSelf serve⚡ Free to try

6 published contracts

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 2026-10-04 · rubric v0.23.0

Composite quality — 51.2/100 · developing

Contract Quality 11.0 / 19

Developer Ergonomics 5.7 / 15

Access Clarity 6.6 / 15

Operational Transparency 3.0 / 10

Contract Governance 1.0 / 9

Discoverability 5.4 / 8

Regulatory Posture 3.4 / 15

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

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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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