Lightstream website screenshot

Lightstream

Lightstream (Infiniscene, Inc.) is a Techstars-backed live video company best known for Lightstream Studio, a browser-based streaming studio used by creators to broadcast to Twitch, YouTube and other destinations without installing desktop encoding software. Lightstream also operates API.stream, its developer platform, which exposes the same cloud video pipeline to development partners as three API-first services: a Live API for managing collections, projects, sources, destinations and broadcasts; a Layout API for building and animating layered scene compositions; and an Event API for publishing and subscribing to real-time events across collaborators, guests and renderers. All three services are defined as gRPC Protobuf contracts and fronted by gRPC-Web and REST gateways, secured with a JWT access-token model and role-based permissions (HOST, COHOST, CONTRIBUTOR, GUEST, VIEWER), with first-party JavaScript/TypeScript SDKs and a Studio Kit for embedding a full studio experience.

Lightstream publishes 10 APIs on the APIs.io network, including AuthenticationService API, BackendAuthenticationService API, CollectionService API, and 7 more. Tagged areas include Company, Video, Live Streaming, Broadcasting, and WebRTC.

The Lightstream catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Lightstream’s developer surface includes documentation, API reference, getting-started guide, authentication, support, engineering blog, pricing, and 25 more developer resources.

🌐 Visit website 📡 Source on GitHub
54.9/100 developing ▬ flat Agent 78/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
10 APIs 1 MCP Servers
CompanyVideoLive StreamingBroadcastingWebRTCRTMPMediaCompositingReal TimeEventsgRPCCreator Tools

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 54.9/100 · developing
Contract Quality 15.1 / 25
Developer Ergonomics 16.1 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 78/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
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/lightstream: 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 10

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

Lightstream AuthenticationService API

The Authentication Service provides token services for clients

Lightstream BackendAuthenticationService API

The Backend Authentication Service provides token services for partner backend systems

Lightstream CollectionService API

The Collection Service operates on collections, which contain projects and collection live sources used in projects.

Lightstream DestinationService API

The Destination Service operates on Project Destinations. Destinations designate where a Broadcast associated with a Project is distributed downstream.

Lightstream EventService API

The event API provides a mechanism for you to subscribe and publish events between your backend services and the composition, as well as receive events from the live and layout ...

Lightstream LayerService API

Layers

Lightstream LayoutService API

Layouts

Lightstream ProjectService API

The Project Service operates on a Project.

Lightstream PublicAuthenticationService API

The Public Authentication Service provides token verification services

Lightstream SourceService API

The Source Service operates on Collection Live Sources and Project Sources.

Scroll for all 10

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

lightstream-mcp.yml

MCP SERVER

Event Specifications 1

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

API.stream Event API

Event-driven view of the API.stream Event API. The Event API provides a bidirectional publish/subscribe channel between a partner's backend services, the compositor and connecte...

ASYNCAPI

Security Posture 2

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

Lightstream Authentication

apiKey · 2 schemes

SECURITY

Lightstream Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Lightstream Agentic Access

45 operations · 30 acting · 2 human-in-the-loop

45 operations · 30 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Sandbox
Sandbox

Documentation 3

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference
 AsyncAPI
AsyncAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 AgentSkill
AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Lifecycle
Lifecycle
 Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance
 DataModel
DataModel
 Components
Components

Build 4

SDKs, sample code, and the tooling you integrate with

SDKs
SDKs
 Packages
Packages
 GitHubOrganization
GitHubOrganization
 Examples
Examples

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 4

Status, limits, changes, and where to get help

Support
Support
 Community
Community
 StatusPage
StatusPage
 ChangeLog
ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: lightstream
name: Lightstream
description: 'Lightstream (Infiniscene, Inc.) is a Techstars-backed live video company best known for Lightstream Studio,
  a browser-based streaming studio used by creators to broadcast to Twitch, YouTube and other destinations without installing
  desktop encoding software. Lightstream also operates API.stream, its developer platform, which exposes the same cloud video
  pipeline to development partners as three API-first services: a Live API for managing collections, projects, sources, destinations
  and broadcasts; a Layout API for building and animating layered scene compositions; and an Event API for publishing and
  subscribing to real-time events across collaborators, guests and renderers. All three services are defined as gRPC Protobuf
  contracts and fronted by gRPC-Web and REST gateways, secured with a JWT access-token model and role-based permissions (HOST,
  COHOST, CONTRIBUTOR, GUEST, VIEWER), with first-party JavaScript/TypeScript SDKs and a Studio Kit for embedding a full studio
  experience.'
url: https://raw.githubusercontent.com/api-evangelist/lightstream/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://raw.githubusercontent.com/golightstream/api.stream-sdk/main/build/logo-dark.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- techstars
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Video
- Live Streaming
- Broadcasting
- WebRTC
- RTMP
- Media
- Compositing
- Real Time
- Events
- gRPC
- Creator Tools
apis:
- aid: lightstream:lightstream-authenticationservice-api
  name: Lightstream AuthenticationService API
  description: The Authentication Service provides token services for clients
  humanURL: https://www.api.stream/docs/api/live/rest/
  baseURL: https://live.api.stream/live/v2
  tags:
  - AuthenticationService
  properties:
  - type: OpenAPI
    url: openapi/lightstream-authenticationservice-api-openapi.yml
  - type: Documentation
    url: https://www.api.stream/docs/api/live/
  - type: APIReference
    url: https://www.api.stream/docs/api/live/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/layout/
  - type: APIReference
    url: https://www.api.stream/docs/api/layout/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/event/
  - type: APIReference
    url: https://www.api.stream/docs/api/event/rest/
- aid: lightstream:lightstream-backendauthenticationservice-api
  name: Lightstream BackendAuthenticationService API
  description: 'The Backend Authentication Service provides token services for partner

    backend systems'
  humanURL: https://www.api.stream/docs/api/live/rest/
  baseURL: https://live.api.stream/live/v2
  tags:
  - BackendAuthenticationService
  properties:
  - type: OpenAPI
    url: openapi/lightstream-backendauthenticationservice-api-openapi.yml
  - type: Documentation
    url: https://www.api.stream/docs/api/live/
  - type: APIReference
    url: https://www.api.stream/docs/api/live/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/layout/
  - type: APIReference
    url: https://www.api.stream/docs/api/layout/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/event/
  - type: APIReference
    url: https://www.api.stream/docs/api/event/rest/
- aid: lightstream:lightstream-collectionservice-api
  name: Lightstream CollectionService API
  description: 'The Collection Service operates on collections, which contain projects and

    collection live sources used in projects.'
  humanURL: https://www.api.stream/docs/api/live/rest/
  baseURL: https://live.api.stream/live/v2
  tags:
  - CollectionService
  properties:
  - type: OpenAPI
    url: openapi/lightstream-collectionservice-api-openapi.yml
  - type: Documentation
    url: https://www.api.stream/docs/api/live/
  - type: APIReference
    url: https://www.api.stream/docs/api/live/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/layout/
  - type: APIReference
    url: https://www.api.stream/docs/api/layout/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/event/
  - type: APIReference
    url: https://www.api.stream/docs/api/event/rest/
- aid: lightstream:lightstream-destinationservice-api
  name: Lightstream DestinationService API
  description: 'The Destination Service operates on Project Destinations. Destinations

    designate where a Broadcast associated with a Project is distributed

    downstream.'
  humanURL: https://www.api.stream/docs/api/live/rest/
  baseURL: https://live.api.stream/live/v2
  tags:
  - DestinationService
  properties:
  - type: OpenAPI
    url: openapi/lightstream-destinationservice-api-openapi.yml
  - type: Documentation
    url: https://www.api.stream/docs/api/live/
  - type: APIReference
    url: https://www.api.stream/docs/api/live/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/layout/
  - type: APIReference
    url: https://www.api.stream/docs/api/layout/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/event/
  - type: APIReference
    url: https://www.api.stream/docs/api/event/rest/
- aid: lightstream:lightstream-eventservice-api
  name: Lightstream EventService API
  description: 'The event API provides a mechanism for you to subscribe and publish events between

    your backend services and the composition, as well as receive events from the live and layout api.'
  humanURL: https://www.api.stream/docs/api/live/rest/
  baseURL: https://live.api.stream/live/v2
  tags:
  - EventService
  properties:
  - type: OpenAPI
    url: openapi/lightstream-eventservice-api-openapi.yml
  - type: Documentation
    url: https://www.api.stream/docs/api/live/
  - type: APIReference
    url: https://www.api.stream/docs/api/live/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/layout/
  - type: APIReference
    url: https://www.api.stream/docs/api/layout/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/event/
  - type: APIReference
    url: https://www.api.stream/docs/api/event/rest/
- aid: lightstream:lightstream-layerservice-api
  name: Lightstream LayerService API
  description: Layers
  humanURL: https://www.api.stream/docs/api/live/rest/
  baseURL: https://live.api.stream/live/v2
  tags:
  - LayerService
  properties:
  - type: OpenAPI
    url: openapi/lightstream-layerservice-api-openapi.yml
  - type: Documentation
    url: https://www.api.stream/docs/api/live/
  - type: APIReference
    url: https://www.api.stream/docs/api/live/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/layout/
  - type: APIReference
    url: https://www.api.stream/docs/api/layout/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/event/
  - type: APIReference
    url: https://www.api.stream/docs/api/event/rest/
- aid: lightstream:lightstream-layoutservice-api
  name: Lightstream LayoutService API
  description: Layouts
  humanURL: https://www.api.stream/docs/api/live/rest/
  baseURL: https://live.api.stream/live/v2
  tags:
  - LayoutService
  properties:
  - type: OpenAPI
    url: openapi/lightstream-layoutservice-api-openapi.yml
  - type: Documentation
    url: https://www.api.stream/docs/api/live/
  - type: APIReference
    url: https://www.api.stream/docs/api/live/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/layout/
  - type: APIReference
    url: https://www.api.stream/docs/api/layout/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/event/
  - type: APIReference
    url: https://www.api.stream/docs/api/event/rest/
- aid: lightstream:lightstream-projectservice-api
  name: Lightstream ProjectService API
  description: The Project Service operates on a Project.
  humanURL: https://www.api.stream/docs/api/live/rest/
  baseURL: https://live.api.stream/live/v2
  tags:
  - ProjectService
  properties:
  - type: OpenAPI
    url: openapi/lightstream-projectservice-api-openapi.yml
  - type: Documentation
    url: https://www.api.stream/docs/api/live/
  - type: APIReference
    url: https://www.api.stream/docs/api/live/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/layout/
  - type: APIReference
    url: https://www.api.stream/docs/api/layout/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/event/
  - type: APIReference
    url: https://www.api.stream/docs/api/event/rest/
- aid: lightstream:lightstream-publicauthenticationservice-api
  name: Lightstream PublicAuthenticationService API
  description: The Public Authentication Service provides token verification services
  humanURL: https://www.api.stream/docs/api/live/rest/
  baseURL: https://live.api.stream/live/v2
  tags:
  - PublicAuthenticationService
  properties:
  - type: OpenAPI
    url: openapi/lightstream-publicauthenticationservice-api-openapi.yml
  - type: Documentation
    url: https://www.api.stream/docs/api/live/
  - type: APIReference
    url: https://www.api.stream/docs/api/live/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/layout/
  - type: APIReference
    url: https://www.api.stream/docs/api/layout/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/event/
  - type: APIReference
    url: https://www.api.stream/docs/api/event/rest/
- aid: lightstream:lightstream-sourceservice-api
  name: Lightstream SourceService API
  description: The Source Service operates on Collection Live Sources and Project Sources.
  humanURL: https://www.api.stream/docs/api/live/rest/
  baseURL: https://live.api.stream/live/v2
  tags:
  - SourceService
  properties:
  - type: OpenAPI
    url: openapi/lightstream-sourceservice-api-openapi.yml
  - type: Documentation
    url: https://www.api.stream/docs/api/live/
  - type: APIReference
    url: https://www.api.stream/docs/api/live/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/layout/
  - type: APIReference
    url: https://www.api.stream/docs/api/layout/rest/
  - type: Documentation
    url: https://www.api.stream/docs/api/event/
  - type: APIReference
    url: https://www.api.stream/docs/api/event/rest/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/lightstream-agentic-access.yml
- type: Website
  url: https://golightstream.com/
- type: DeveloperPortal
  url: https://www.api.stream/
- type: Documentation
  url: https://www.api.stream/docs/
- type: APIReference
  url: https://www.api.stream/docs/api/live/rest/
- type: GettingStarted
  url: https://www.api.stream/docs/
- type: Authentication
  url: authentication/lightstream-authentication.yml
- type: SDKs
  url: packages/lightstream-packages.yml
- type: Packages
  url: packages/lightstream-packages.yml
- type: GitHubOrganization
  url: https://github.com/golightstream
- type: Support
  url: https://golightstream.com/support/
- type: Community
  url: https://discord.gg/lightstream
- type: Blog
  url: https://golightstream.com/blog
- type: StatusPage
  url: https://status.api.stream/
- type: Lifecycle
  url: lifecycle/lightstream-lifecycle.yml
- type: Pricing
  url: https://golightstream.com/studio/#plans
- type: SignUp
  url: https://studio.golightstream.com/welcome
- type: TermsOfService
  url: https://api.stream/terms-of-service/
- type: PrivacyPolicy
  url: https://api.stream/privacy-policy/
- type: Conventions
  url: conventions/lightstream-conventions.yml
- type: ErrorCatalog
  url: errors/lightstream-problem-types.yml
- type: Conformance
  url: conformance/lightstream-conformance.yml
- type: DataModel
  url: data-model/lightstream-data-model.yml
- type: DomainSecurity
  url: security/lightstream-domain-security.yml
- type: MCPServer
  url: mcp/lightstream-mcp.yml
- type: LLMsTxt
  url: llms/lightstream-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: Examples
  url: examples/lightstream-examples.yml
- type: AsyncAPI
  url: asyncapi/lightstream-event-asyncapi.yml
- type: Sandbox
  url: sandbox/lightstream-sandbox.yml
- type: Components
  url: components/lightstream-components.yml
- type: ChangeLog
  url: changelog/lightstream-changelog.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence