Limrun

Limrun (Limrun, Inc.) is a Y Combinator-backed cloud infrastructure company for mobile development, built so cloud coding agents and Linux CI runners can build, run, and test iOS and Android apps without a Mac. Limrun exposes three composable cloud services behind one REST control plane at api.limrun.com: iOS simulators running on real Macs (streamable in a browser and drivable programmatically through taps, screenshots, accessibility element trees, video recording, and app lifecycle), remote Xcode and Bazel build sandboxes that accept synced sources and run xcodebuild or remote build execution, and accelerated Android emulators reachable over an ADB tunnel by Android Studio, Appium, or scrcpy. Gradle build sandboxes and a managed Asset Storage service for .apk and .app build artifacts round out the platform. Every instance is created through the control plane with an org API key and returns its own per-instance token, data-plane URLs, a signed browser stream URL, and its own Model Context Protocol server, which makes Limrun one of the few providers shipping a per-instance MCP endpoint alongside first-party Agent Skills for coding agents.

Limrun publishes 7 API contracts indexed on the APIs.io network, including Analytics API, Android Instances API, Assets API, and 4 more. Tagged areas include Company, Mobile, iOS, Android, and Simulator.

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

Limrun’s developer surface includes documentation, API reference, getting-started guide, signup flow, developer console, support, CLI, and 26 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

39.9/100 developing ▬ flat Agent 44/100 agent native Front door AI 4/6 moderate Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 MCP Servers 5 Agent Skills

Company Mobile iOS Android SimulatorEmulatorsCloud Infrastructure Continuous Integration Developer Tools Testing Agents MCP SandboxXcode

Kin Score

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

Composite quality — 39.9/100 · developing

Contract Quality 6.5 / 19

Developer Ergonomics 11.4 / 15

Access Clarity 0.0 / 15

Operational Transparency 3.6 / 10

Contract Governance 1.6 / 9

Discoverability 5.4 / 8

Regulatory Posture 4.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 44/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 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 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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):

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
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)

4 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 0.0 — up to +20.0 composite points
Contract Quality scores 34.5 — up to +16.4 composite points
Contract Governance scores 18.2 — up to +9.8 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/limrun/apis.yml: open an issue on github.com/api-evangelist/limrun 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Agent Skills (SKILL.md packages)	distribution	19.2 (thin)	-	2
Apple Accessory & Device Ecosystem (MFi, Matter, Apple partners)	distribution	19.2 (thin)	-	2
Mobile SDK Publishers (Play SDK Index, CocoaPods, ADA certification)	distribution	19.2 (thin)	-	2

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 6

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

Agent Skills

measured — observed by APIs.io (published)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

OpenID Connect

measured — observed by APIs.io (declared)

APIs 7

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

Limrun Analytics API

The Analytics API from Limrun — 3 operation(s) for analytics.

Limrun Android Instances API

The Android Instances API from Limrun — 2 operation(s) for android instances.

Limrun Assets API

The Assets API from Limrun — 2 operation(s) for assets.

Limrun Downloads API

The Downloads API from Limrun — 1 operation(s) for downloads.

Limrun Gradle Instances API

The Gradle Instances API from Limrun — 2 operation(s) for gradle instances.

Limrun Ios Instances API

The Ios Instances API from Limrun — 2 operation(s) for ios instances.

Limrun Xcode Instances API

The Xcode Instances API from Limrun — 4 operation(s) for xcode instances.

Scroll for all 7

Open Collections 7

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

Limrun Analytics API

OPEN COLLECTION

Limrun Analytics Android Instances API

OPEN COLLECTION

Limrun Analytics Assets API

OPEN COLLECTION

Limrun Analytics Downloads API

OPEN COLLECTION

Limrun Analytics Gradle Instances API

OPEN COLLECTION

Limrun Analytics Ios Instances API

OPEN COLLECTION

Limrun Analytics Xcode Instances API

OPEN COLLECTION

Scroll for all 7

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Limrun MCP Server

Limrun ships a per-instance MCP server rather than one shared endpoint. Every iOS and Android instance exposes its own Model Context Protocol HTTP endpoint at status.mcpUrl once...

MCP SERVER

Agent Skills 5

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

limrun-detox-testing

AGENT SKILL

limrun-expo-development

AGENT SKILL

limrun-ios-simulator

AGENT SKILL

limrun-xcode-bazel

AGENT SKILL

limrun-xcode

AGENT SKILL

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Limrun

SLA

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Limrun API Rules

40 rules · 34 errors 4 warnings 2 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.

Limrun Api Overlay

12 actions · servers · limrun-openapi-original.yml

DERIVED

Security Posture 3

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

Limrun Authentication

http/oauth2/openIdConnect · 5 schemes

SECURITY

Limrun Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Limrun Vulnerability Disclosure

Hackerone · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Limrun Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Agentic Access 1

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

Limrun Agentic Access

26 operations · 11 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Console

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

MCPServer

AgentSkill

WellKnown

AgenticAccess

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Components

Conventions

Idempotency

ErrorCatalog

Lifecycle

Conformance

DataModel

Scroll for all 7

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 5

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 3

Status, limits, changes, and where to get help

StatusPage

StatusPage

Support

Support

ChangeLog

ChangeLog

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: limrun
name: Limrun
description: 'Limrun (Limrun, Inc.) is a Y Combinator-backed cloud infrastructure company for mobile development, built so
  cloud coding agents and Linux CI runners can build, run, and test iOS and Android apps without a Mac. Limrun exposes three
  composable cloud services behind one REST control plane at api.limrun.com: iOS simulators running on real Macs (streamable
  in a browser and drivable programmatically through taps, screenshots, accessibility element trees, video recording, and
  app lifecycle), remote Xcode and Bazel build sandboxes that accept synced sources and run xcodebuild or remote build execution,
  and accelerated Android emulators reachable over an ADB tunnel by Android Studio, Appium, or scrcpy. Gradle build sandboxes
  and a managed Asset Storage service for .apk and .app build artifacts round out the platform. Every instance is created
  through the control plane with an org API key and returns its own per-instance token, data-plane URLs, a signed browser
  stream URL, and its own Model Context Protocol server, which makes Limrun one of the few providers shipping a per-instance
  MCP endpoint alongside first-party Agent Skills for coding agents.'
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
  - scopes
  - security
  - sandbox
  - url: https://lim.run
    status: 301
    note: declared website redirects to https://limrun.com/ — a different registrable domain (lim.run -> limrun.com), possible
      rename or acquisition (probed 2026-09-03, roadmap#169)
  generated: '2026-11-06'
  method: derived
image: https://lim.run/logo-inner-filled-no-border.svg
url: https://raw.githubusercontent.com/api-evangelist/limrun/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Mobile
- iOS
- Android
- Simulator
- Emulators
- Cloud Infrastructure
- Continuous Integration
- Developer Tools
- Testing
- Agents
- MCP
- Sandbox
- Xcode
tags_raw:
- Company
- Mobile
- iOS
- Android
- Simulators
- Emulators
- Cloud Infrastructure
- Continuous Integration
- Developer Tools
- Testing
- Agents
- Model Context Protocol
- Sandboxes
- Xcode
apis:
- aid: limrun:limrun-analytics-api
  name: Limrun Analytics API
  description: The Analytics API from Limrun — 3 operation(s) for analytics.
  humanURL: https://docs.limrun.com/docs/reference/sdk
  baseURL: https://api.limrun.com
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/limrun-analytics-api-openapi.yml
  - type: Documentation
    url: https://docs.limrun.com/docs
  - type: APIReference
    url: https://docs.limrun.com/docs/reference/sdk
- aid: limrun:limrun-android-instances-api
  name: Limrun Android Instances API
  description: The Android Instances API from Limrun — 2 operation(s) for android instances.
  humanURL: https://docs.limrun.com/docs/reference/sdk
  baseURL: https://api.limrun.com
  tags:
  - Android Instances
  properties:
  - type: OpenAPI
    url: openapi/limrun-android-instances-api-openapi.yml
  - type: Documentation
    url: https://docs.limrun.com/docs
  - type: APIReference
    url: https://docs.limrun.com/docs/reference/sdk
- aid: limrun:limrun-assets-api
  name: Limrun Assets API
  description: The Assets API from Limrun — 2 operation(s) for assets.
  humanURL: https://docs.limrun.com/docs/reference/sdk
  baseURL: https://api.limrun.com
  tags:
  - Assets
  properties:
  - type: OpenAPI
    url: openapi/limrun-assets-api-openapi.yml
  - type: Documentation
    url: https://docs.limrun.com/docs
  - type: APIReference
    url: https://docs.limrun.com/docs/reference/sdk
- aid: limrun:limrun-downloads-api
  name: Limrun Downloads API
  description: The Downloads API from Limrun — 1 operation(s) for downloads.
  humanURL: https://docs.limrun.com/docs/reference/sdk
  baseURL: https://api.limrun.com
  tags:
  - Downloads
  properties:
  - type: OpenAPI
    url: openapi/limrun-downloads-api-openapi.yml
  - type: Documentation
    url: https://docs.limrun.com/docs
  - type: APIReference
    url: https://docs.limrun.com/docs/reference/sdk
- aid: limrun:limrun-gradle-instances-api
  name: Limrun Gradle Instances API
  description: The Gradle Instances API from Limrun — 2 operation(s) for gradle instances.
  humanURL: https://docs.limrun.com/docs/reference/sdk
  baseURL: https://api.limrun.com
  tags:
  - Gradle Instances
  properties:
  - type: OpenAPI
    url: openapi/limrun-gradle-instances-api-openapi.yml
  - type: Documentation
    url: https://docs.limrun.com/docs
  - type: APIReference
    url: https://docs.limrun.com/docs/reference/sdk
- aid: limrun:limrun-ios-instances-api
  name: Limrun Ios Instances API
  description: The Ios Instances API from Limrun — 2 operation(s) for ios instances.
  humanURL: https://docs.limrun.com/docs/reference/sdk
  baseURL: https://api.limrun.com
  tags:
  - Ios Instances
  properties:
  - type: OpenAPI
    url: openapi/limrun-ios-instances-api-openapi.yml
  - type: Documentation
    url: https://docs.limrun.com/docs
  - type: APIReference
    url: https://docs.limrun.com/docs/reference/sdk
- aid: limrun:limrun-xcode-instances-api
  name: Limrun Xcode Instances API
  description: The Xcode Instances API from Limrun — 4 operation(s) for xcode instances.
  humanURL: https://docs.limrun.com/docs/reference/sdk
  baseURL: https://api.limrun.com
  tags:
  - Xcode Instances
  properties:
  - type: OpenAPI
    url: openapi/limrun-xcode-instances-api-openapi.yml
  - type: Documentation
    url: https://docs.limrun.com/docs
  - type: APIReference
    url: https://docs.limrun.com/docs/reference/sdk
common:
- type: Overlay
  url: overlays/limrun-api-overlay.yaml
- type: Website
  url: https://lim.run
- type: DeveloperPortal
  url: https://docs.limrun.com/docs
- type: Documentation
  url: https://docs.limrun.com/docs
- type: APIReference
  url: https://docs.limrun.com/docs/reference/sdk
- type: GettingStarted
  url: https://docs.limrun.com/docs/quickstart
- type: SignUp
  url: https://console.limrun.com
- type: Console
  url: https://console.limrun.com
- type: GitHubOrganization
  url: https://github.com/limrun-inc
- type: StatusPage
  url: https://status.limrun.com
- type: Support
  url: mailto:contact@limrun.com
- type: LLMsTxt
  url: llms/limrun-llms.txt
- type: Packages
  url: packages/limrun-packages.yml
- type: SDKs
  url: packages/limrun-packages.yml
- type: CLI
  url: cli/limrun-cli.yml
- type: Components
  url: components/limrun-components.yml
- type: MCPServer
  url: mcp/limrun-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Authentication
  url: authentication/limrun-authentication.yml
- type: OAuthScopes
  url: scopes/limrun-scopes.yml
- type: WellKnown
  url: well-known/limrun-well-known.yml
- type: Conventions
  url: conventions/limrun-conventions.yml
- type: Idempotency
  url: conventions/limrun-conventions.yml
- type: ErrorCatalog
  url: errors/limrun-problem-types.yml
- type: Lifecycle
  url: lifecycle/limrun-lifecycle.yml
- type: ChangeLog
  url: changelog/limrun-changelog.yml
- type: Conformance
  url: conformance/limrun-conformance.yml
- type: DataModel
  url: data-model/limrun-data-model.yml
- type: Sandbox
  url: sandbox/limrun-sandbox.yml
- type: DomainSecurity
  url: security/limrun-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/limrun-vulnerability-disclosure.yml
- type: Security
  url: https://github.com/limrun-inc/typescript-sdk/blob/main/SECURITY.md
- type: AgenticAccess
  url: agentic-access/limrun-agentic-access.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Limrun API — frequently asked questions

Does Limrun have an API?

Yes. APIs.io lists 7 APIs from Limrun, including Limrun Analytics API, Limrun Android Instances API and Limrun Assets API, and 4 more.

Is there an OpenAPI specification for the Limrun API?

Yes. APIs.io indexes 7 OpenAPI specifications for Limrun, each linked for download from this page.

How do I authenticate with the Limrun API?

Limrun documents its authentication (http/oauth2/openIdConnect · 5 schemes). The details are profiled on APIs.io as Limrun Authentication.

Does Limrun have an MCP server?

Yes. APIs.io lists 1 MCP server for Limrun: Limrun ships a per-instance MCP server rather than one shared endpoint. Every iOS and Android instance exposes its own Model Context Protocol HTTP endpoint at status.mcpUrl once the instance reaches t

Is the Limrun API ready for AI agents?

Limrun has a Kin Score of 39.9 out of 100 (developing) and an Agent Readiness score of 44.4 (agent-native), scored by API Evangelist on 2026-11-06.

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