ShortKit

ShortKit is a Y Combinator-backed short-form vertical video platform that gives product teams a drop-in, TikTok-quality video experience without the infrastructure complexity. It ships native SDKs for iOS, Android, Flutter, React Native, Expo and Web alongside a REST API for managing content, direct uploads, live streams, in-feed surveys, analytics events and ad configuration. The platform handles adaptive-bitrate HLS transcoding, global CDN delivery across 300+ points of presence, automatic caption generation with language detection, protected/signed playback, and native ad insertion (Google Ad Manager / VAST / IMA). Developer docs are partner-gated but the Mintlify API reference and the iOS SDK are published openly on GitHub.

ShortKit publishes 5 APIs on the APIs.io network, including Ad Configuration API, Analytics API, Content API, and 2 more. Tagged areas include Company, Video, Short-Form Video, Video SDK, and Streaming.

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

ShortKit’s developer surface includes documentation, API reference, getting-started guide, pricing, engineering blog, signup flow, sandbox, and 20 more developer resources.

🌐 Visit website 📡 Source on GitHub

42.7/100 developing ▬ flat Agent 24/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Video Short-Form VideoVideo SDKStreaming Live Streaming Content Delivery Analytics Advertising Y Combinator

Kin Score

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

Composite quality — 42.7/100 · developing

Contract Quality 13.6 / 23

Developer Ergonomics 8.9 / 18

Access Clarity 8.0 / 18

Operational Transparency 1.2 / 12

Contract Governance 0.5 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 24/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 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 0 / 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 0 / 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/shortkit: 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 5

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

ShortKit Ad Configuration API

How ad slots are interleaved into the feed.

ShortKit Analytics API

Events and metrics for user interaction with your content.

ShortKit Content API

Videos, image carousels, and video carousels in your feed.

ShortKit Live Streams API

Real-time broadcasts that appear in the feed alongside on-demand content.

ShortKit Surveys API

Short polls injected between content items in the feed.

Open Collections 6

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

API Collection

OPEN COLLECTION

ShortKit Ad Configuration API

OPEN COLLECTION

ShortKit Ad Configuration Analytics API

OPEN COLLECTION

ShortKit Ad Configuration Content API

OPEN COLLECTION

ShortKit Ad Configuration Live Streams API

OPEN COLLECTION

ShortKit Ad Configuration Surveys API

OPEN COLLECTION

Event Specifications 1

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

Shortkit Webhooks

ASYNCAPI

Security Posture 2

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

Shortkit Authentication

apiKey/http · 2 schemes

SECURITY

Shortkit Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Components

Conventions

ErrorCatalog

Conformance

Lifecycle

DataModel

Webhooks

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

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: shortkit
name: ShortKit
description: ShortKit is a Y Combinator-backed short-form vertical video platform that gives product teams a drop-in, TikTok-quality
  video experience without the infrastructure complexity. It ships native SDKs for iOS, Android, Flutter, React Native, Expo
  and Web alongside a REST API for managing content, direct uploads, live streams, in-feed surveys, analytics events and ad
  configuration. The platform handles adaptive-bitrate HLS transcoding, global CDN delivery across 300+ points of presence,
  automatic caption generation with language detection, protected/signed playback, and native ad insertion (Google Ad Manager
  / VAST / IMA). Developer docs are partner-gated but the Mintlify API reference and the iOS SDK are published openly on GitHub.
url: https://raw.githubusercontent.com/api-evangelist/shortkit/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: enriched
x-tier-reason: portfolio-lead
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://www.shortkit.dev/icon.svg
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Video
- Short-Form Video
- Video SDK
- Streaming
- Live Streaming
- Content Delivery
- Analytics
- Advertising
- Y Combinator
apis:
- aid: shortkit:shortkit-ad-configuration-api
  name: ShortKit Ad Configuration API
  description: How ad slots are interleaved into the feed.
  humanURL: https://www.shortkit.dev/docs
  baseURL: https://api.shortkit.dev/v1
  tags:
  - Ad Configuration
  properties:
  - type: OpenAPI
    url: openapi/shortkit-ad-configuration-api-openapi.yml
  - type: Documentation
    url: https://www.shortkit.dev/docs
  - type: APIReference
    url: https://www.shortkit.dev/docs/api/overview
  - type: Authentication
    url: authentication/shortkit-authentication.yml
- aid: shortkit:shortkit-analytics-api
  name: ShortKit Analytics API
  description: Events and metrics for user interaction with your content.
  humanURL: https://www.shortkit.dev/docs
  baseURL: https://api.shortkit.dev/v1
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/shortkit-analytics-api-openapi.yml
  - type: Documentation
    url: https://www.shortkit.dev/docs
  - type: APIReference
    url: https://www.shortkit.dev/docs/api/overview
  - type: Authentication
    url: authentication/shortkit-authentication.yml
- aid: shortkit:shortkit-content-api
  name: ShortKit Content API
  description: Videos, image carousels, and video carousels in your feed.
  humanURL: https://www.shortkit.dev/docs
  baseURL: https://api.shortkit.dev/v1
  tags:
  - Content
  properties:
  - type: OpenAPI
    url: openapi/shortkit-content-api-openapi.yml
  - type: Documentation
    url: https://www.shortkit.dev/docs
  - type: APIReference
    url: https://www.shortkit.dev/docs/api/overview
  - type: Authentication
    url: authentication/shortkit-authentication.yml
- aid: shortkit:shortkit-live-streams-api
  name: ShortKit Live Streams API
  description: Real-time broadcasts that appear in the feed alongside on-demand content.
  humanURL: https://www.shortkit.dev/docs
  baseURL: https://api.shortkit.dev/v1
  tags:
  - Live Streams
  properties:
  - type: OpenAPI
    url: openapi/shortkit-live-streams-api-openapi.yml
  - type: Documentation
    url: https://www.shortkit.dev/docs
  - type: APIReference
    url: https://www.shortkit.dev/docs/api/overview
  - type: Authentication
    url: authentication/shortkit-authentication.yml
- aid: shortkit:shortkit-surveys-api
  name: ShortKit Surveys API
  description: Short polls injected between content items in the feed.
  humanURL: https://www.shortkit.dev/docs
  baseURL: https://api.shortkit.dev/v1
  tags:
  - Surveys
  properties:
  - type: OpenAPI
    url: openapi/shortkit-surveys-api-openapi.yml
  - type: Documentation
    url: https://www.shortkit.dev/docs
  - type: APIReference
    url: https://www.shortkit.dev/docs/api/overview
  - type: Authentication
    url: authentication/shortkit-authentication.yml
common:
- type: CapabilityMap
  url: capabilities/shortkit-capability-edges.yml
  name: ShortKit Business Capability Map
- type: Overlay
  url: overlays/shortkit-openapi-overlay.yaml
- type: DomainSecurity
  url: security/shortkit-domain-security.yml
- type: Website
  url: https://www.shortkit.dev
- type: DeveloperPortal
  url: https://portal.shortkit.dev
- type: Documentation
  url: https://www.shortkit.dev/docs
- type: APIReference
  url: https://www.shortkit.dev/docs/api/overview
- type: GettingStarted
  url: https://www.shortkit.dev/docs/quickstart
- type: Pricing
  url: https://www.shortkit.dev/pricing
- type: Blog
  url: https://www.shortkit.dev/blog
- type: SignUp
  url: https://portal.shortkit.dev
- type: TermsOfService
  url: https://www.shortkit.dev/terms
- type: PrivacyPolicy
  url: https://www.shortkit.dev/privacy
- type: GitHubOrganization
  url: https://github.com/shortkit
- type: Packages
  url: packages/shortkit-packages.yml
- type: SDKs
  url: packages/shortkit-packages.yml
- type: Components
  url: components/shortkit-components.yml
- type: Conventions
  url: conventions/shortkit-conventions.yml
- type: ErrorCatalog
  url: errors/shortkit-problem-types.yml
- type: Conformance
  url: conformance/shortkit-conformance.yml
- type: Lifecycle
  url: lifecycle/shortkit-lifecycle.yml
- type: DataModel
  url: data-model/shortkit-data-model.yml
- type: Webhooks
  url: asyncapi/shortkit-webhooks.yml
- type: X-MCPServerCandidate
  url: mcp/shortkit-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/shortkit-llms.txt
- type: Sandbox
  url: sandbox/shortkit-sandbox.yml
- type: AgentSkill
  url: skills/_index.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 20
  pass: local-v1

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