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 27 more developer resources.

🌐 Visit website 📡 Source on GitHub

45.7/100 developing ▬ flat Agent 28/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

3 APIs

Company Video Live Streaming Broadcasting WebRTC RTMP MediaCompositingReal-Time Event gRPC Creator Tools

Kin Score

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

Composite quality — 45.7/100 · developing

Contract Quality 13.8 / 23

Developer Ergonomics 12.3 / 18

Access Clarity 3.8 / 18

Operational Transparency 4.0 / 12

Contract Governance 0.5 / 11

Discoverability 7.3 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 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/lightstream: 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 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

Open Collections 11

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

API Collection

OPEN COLLECTION

Event AuthenticationService API

OPEN COLLECTION

Event AuthenticationService BackendAuthenticationService API

OPEN COLLECTION

Event AuthenticationService CollectionService API

OPEN COLLECTION

Event AuthenticationService DestinationService API

OPEN COLLECTION

Event AuthenticationService EventService API

OPEN COLLECTION

Event AuthenticationService LayerService API

OPEN COLLECTION

Event AuthenticationService LayoutService API

OPEN COLLECTION

Event AuthenticationService ProjectService API

OPEN COLLECTION

Event AuthenticationService PublicAuthenticationService API

OPEN COLLECTION

Event AuthenticationService SourceService API

OPEN COLLECTION

Scroll for all 11

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

GettingStarted

SignUp

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

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conventions

ErrorCatalog

Conformance

DataModel

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

Community

StatusPage

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

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

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
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-09-03'
  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: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Video
- Live Streaming
- Broadcasting
- WebRTC
- RTMP
- Media
- Compositing
- Real-Time
- Event
- gRPC
- Creator Tools
tags_raw:
- 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: CapabilityMap
  url: capabilities/lightstream-capability-edges.yml
  name: Lightstream Business Capability Map
- type: Overlay
  url: overlays/lightstream-event-overlay.yaml
- 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: X-MCPServerCandidate
  url: mcp/lightstream-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- 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

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