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.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Lightstream the way a machine reads it — 15 machine-readable artifacts across 10 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Lightstream scores 54.9/100 (developing), with a separate agent-readiness read of 78/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Lightstream
Each block below is one kind of artifact we hold for Lightstream. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 10
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
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 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 within the panel for all 10 ·
MCP Servers 1
Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.
Model Context Protocol servers that expose these APIs to AI agents.
lightstream-mcp.yml
MCP SERVEREvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
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...
ASYNCAPISecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Lightstream — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 4
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 6
Pagination, idempotency, versioning, errors, and events
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/lightstream · machine-readable index on apis.io