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 — 25 machine-readable artifacts across 3 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 45.7/100 (developing), with a separate agent-readiness read of 28/100 (agent aware). 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. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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title="Lightstream on API Evangelist — API profile and Kin Score">
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</a>More shapes, themes and sizes → · Score as JSON · How badges work
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 ·
Open Collections 11
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONEvent AuthenticationService API
OPEN COLLECTIONEvent AuthenticationService BackendAuthenticationService API
OPEN COLLECTIONEvent AuthenticationService CollectionService API
OPEN COLLECTIONEvent AuthenticationService DestinationService API
OPEN COLLECTIONEvent AuthenticationService EventService API
OPEN COLLECTIONEvent AuthenticationService LayerService API
OPEN COLLECTIONEvent AuthenticationService LayoutService API
OPEN COLLECTIONEvent AuthenticationService ProjectService API
OPEN COLLECTIONEvent AuthenticationService PublicAuthenticationService API
OPEN COLLECTIONEvent AuthenticationService SourceService API
OPEN COLLECTIONScroll within the panel for all 11 ·
Event 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
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/lightstream · machine-readable index on apis.io
This is an independent, third-party profile of Lightstream, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.