Rainway

Rainway is a developer platform for interactive application streaming, letting you embed and run native apps anywhere in a few lines of code. Its Stream SDK is built on WebRTC and ships runtimes for the Web, React, Node.js (native), .NET and C++, handling secure peer connections, low-latency media streaming, network adaptation and input. A small RESTful Hub API exposes the active peers connected to the Rainway Network, authenticated with an API key pair, for building multi-peer architectures. Rainway originated as a consumer game-streaming app (2017; consumer app wound down in 2022) and pivoted to the Stream SDK; the docs, Hub, and published packages remain live.

Rainway publishes 1 API contract indexed on the APIs.io network: Peers API. Tagged areas include Company, Streaming, Application Streaming, WebRTC, and Game Streaming.

The Rainway catalog on APIs.io includes 1 Spectral governance ruleset.

Rainway’s developer surface includes documentation, getting-started guide, API reference, signup flow, authentication, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

25.2/100 emerging ▬ flat Agent 30/100 agent ready Front door AI 3/6 light Heartbeat 14/100 slowing saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 Agent Skills

Company StreamingApplication StreamingWebRTCGame StreamingSDK Real-Time Developer Platform

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 25.2/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 10.0 / 17

Access Clarity 1.1 / 17

Operational Transparency 2.0 / 11

Contract Governance 1.9 / 10

Discoverability 6.2 / 9

Regulatory Posture 2.5 / 15

Agent readiness — 30/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

5 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 6.6 — up to +18.7 composite points
Operational Transparency scores 18.4 — up to +10.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/rainway/apis.yml: open an issue on github.com/api-evangelist/rainway to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 1

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

Rainway Peers API

Access active Rainway peers connected to the Rainway Network.

Open Collections 1

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

Rainway Hub Peers API

OPEN COLLECTION

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

List Rainway network peers

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Rainway API Rules

56 rules · 54 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Rainway Hub Api Overlay

2 actions · update · rainway-hub-api-openapi.yml

DERIVED

Security Posture 2

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

Rainway Authentication

http · 1 scheme

SECURITY

Rainway Domain Security

TLSv1.3 · HSTS · DNSSEC

SECURITY

Agentic Access 1

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

Rainway Agentic Access

2 operations

2 operations · 0 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

AgentSkill

LLMsTxt

AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

DataModel

Lifecycle

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

StatusPage

StatusPage

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: rainway
name: Rainway
description: Rainway is a developer platform for interactive application streaming, letting you embed and run native apps
  anywhere in a few lines of code. Its Stream SDK is built on WebRTC and ships runtimes for the Web, React, Node.js (native),
  .NET and C++, handling secure peer connections, low-latency media streaming, network adaptation and input. A small RESTful
  Hub API exposes the active peers connected to the Rainway Network, authenticated with an API key pair, for building multi-peer
  architectures. Rainway originated as a consumer game-streaming app (2017; consumer app wound down in 2022) and pivoted to
  the Stream SDK; the docs, Hub, and published packages remain live.
url: https://raw.githubusercontent.com/api-evangelist/rainway/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
  generated: '2026-11-06'
  method: derived
image: https://avatars.githubusercontent.com/u/25223986?v=4
x-type: company
x-source: vc-portfolio
x-backed-by:
- bullpen-capital
x-tier: stub
x-tier-reason: portfolio-lead
x-status-note: Consumer game-streaming app shut down 2022-10-26; company pivoted to the Stream SDK. rainway.com currently
  redirects to an unrelated 6over3 site, but docs.rainway.com, hub.rainway.com and the @rainway npm/NuGet packages are live
  as of 2026-07.
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-04
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 16
  pass: local-v1
tags:
- Company
- Streaming
- Application Streaming
- WebRTC
- Game Streaming
- SDK
- Real-Time
- Developer Platform
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: rainway:rainway-peers-api
  name: Rainway Peers API
  description: Access active Rainway peers connected to the Rainway Network.
  humanURL: https://docs.rainway.com/docs/api-getting-started
  baseURL: https://hub-api.rainway.com/v0
  tags:
  - Peers
  properties:
  - type: OpenAPI
    url: openapi/rainway-peers-api-openapi.yml
  - type: APIReference
    url: https://docs.rainway.com/reference/getpeers
common:
- type: Website
  url: https://docs.rainway.com
- type: DeveloperPortal
  url: https://docs.rainway.com
- type: Documentation
  url: https://docs.rainway.com/docs/what-is-rainway
- type: GettingStarted
  url: https://docs.rainway.com/docs/api-getting-started
- type: APIReference
  url: https://docs.rainway.com/reference/getpeers
- type: SignUp
  url: https://hub.rainway.com
- type: GitHubOrganization
  url: https://github.com/RainwayApp
- type: StatusPage
  url: https://rainway.statuspage.io
- type: Packages
  url: packages/rainway-packages.yml
- type: SDKs
  url: packages/rainway-packages.yml
- type: Authentication
  url: authentication/rainway-authentication.yml
- type: Conventions
  url: conventions/rainway-conventions.yml
- type: ErrorCatalog
  url: errors/rainway-problem-types.yml
- type: DataModel
  url: data-model/rainway-data-model.yml
- type: Lifecycle
  url: lifecycle/rainway-lifecycle.yml
- type: Conformance
  url: conformance/rainway-conformance.yml
- type: X-MCPServerCandidate
  url: mcp/rainway-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: Overlay
  url: overlays/rainway-hub-api-overlay.yaml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/rainway-llms.txt
- type: DomainSecurity
  url: security/rainway-domain-security.yml
- type: AgenticAccess
  url: agentic-access/rainway-agentic-access.yml

Rainway API — frequently asked questions

Does Rainway have an API?

Yes. APIs.io lists 1 API from Rainway, including Rainway Peers API.

Is there an OpenAPI specification for the Rainway API?

Yes. APIs.io indexes 1 OpenAPI specification for Rainway, each linked for download from this page.

How do I authenticate with the Rainway API?

Rainway uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Rainway Authentication.

Is the Rainway API ready for AI agents?

Rainway has a Kin Score of 25.2 out of 100 (emerging) and an Agent Readiness score of 29.5 (agent-ready), scored by API Evangelist on 2026-11-06.

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