Railway

Railway is a cloud application deployment platform (PaaS) that builds, deploys, and scales services, databases, and cron jobs from a Git repository or Docker image. Its programmatic surface is a GraphQL-first Public API served at https://backboard.railway.com/graphql/v2 - the same API that powers the Railway dashboard. There is no REST API; all queries and mutations are issued as GraphQL POST requests, and real-time build, deployment, and environment log streams are delivered as GraphQL subscriptions over a WebSocket endpoint at wss://backboard.railway.com/graphql/v2.

Railway is listed with 13 APIs on the APIs.io network, including Logs API, and 12 more. Tagged areas include Deployment, Platform-as-a-Service, Cloud, Infrastructure, and GraphQL.

The Railway catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Railway’s developer surface includes documentation, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

28.6/100 thin ▬ flat Agent 15/100 agent aware Front door AI 1/6 silent Heartbeat 86/100 alive saas Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

AccessFreemium

13 APIs

Deployment Platform-as-a-Service Cloud Infrastructure GraphQL DevOps Real-Time

Kin Score

Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0

Composite quality — 28.6/100 · thin

Contract Quality 10.5 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 2.7 / 17

Operational Transparency 1.2 / 11

Contract Governance 1.2 / 10

Discoverability 6.1 / 9

Regulatory Posture 1.6 / 15

Agent readiness — 15/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 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

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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

10 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 15.8 — up to +16.8 composite points
Developer Ergonomics scores 19.0 — up to +16.2 composite points
Contract Quality scores 49.6 — up to +12.6 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/railway-app/apis.yml: open an issue on github.com/api-evangelist/railway-app 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
Network Edge (CDN, networking, peering, edge compute)	mixed	40.2	1	1
Agent Skills (SKILL.md packages)	mixed	40.2	1	1
Stripe App Marketplace and Partner Ecosystem (builders on Stripe)	mixed	40.2	1	1
Raycast Store Extensions (first-party publishers + community-wrapped products)	mixed	40.2	1	1

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 2

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.

GraphQL

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

AsyncAPI

measured — observed by APIs.io (published)

APIs 13

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

Railway Projects API

GraphQL operations for creating, reading, updating, and deleting Railway projects - the top-level container for services and environments. Queries include project and projects; ...

Railway Services API

GraphQL operations for managing services and their per-environment service instances. Queries include service and serviceInstance; mutations include serviceCreate, serviceUpdate...

Railway Deployments API

GraphQL operations for triggering and managing deployments. Queries include deployment and deployments; mutations include serviceInstanceDeployV2, serviceInstanceRedeploy, deplo...

Railway Environments API

GraphQL operations for isolated project environments (for example production and staging). Queries include environment and environments; mutations include environmentCreate, env...

Railway Variables API

GraphQL operations for service and environment configuration variables. Queries include variables; mutations include variableUpsert, variableDelete, and variableCollectionUpsert...

Railway Volumes API

GraphQL operations for persistent volumes attached to services. Queries include volume; mutations include volumeCreate, volumeUpdate, volumeDelete, and volumeInstanceUpdate for ...

Railway Plugins API

GraphQL operations for legacy plugins (managed database add-ons such as Postgres, MySQL, Redis, and MongoDB). Queries include plugin; mutations include pluginCreate, pluginUpdat...

Railway Custom Domains API

GraphQL operations for attaching custom and Railway-provided domains to a service. Queries include customDomain and domains; mutations include customDomainCreate, customDomainDe...

Railway TCP Proxies API

GraphQL operations for exposing a service over raw TCP. Queries include tcpProxies; mutations include tcpProxyCreate and tcpProxyDelete.

Railway Usage and Metrics API

GraphQL operations for reading resource consumption and cost. Queries include usage, estimatedUsage, and metrics for per-service vCPU, memory, network egress, and disk utilization.

Railway Teams and Workspaces API

GraphQL operations for the authenticated account, its workspaces, teams, and members. Queries include me, workspace, and workspaces; mutations include workspaceUpdate and teamMe...

Railway Webhooks API

GraphQL operations for project webhooks that notify external URLs of deployment status changes. Queries include projectWebhooks; mutations include webhookCreate, webhookUpdate, ...

Railway Logs API

GraphQL log surface for builds, deployments, environments, and HTTP traffic. Available both as point-in-time queries (buildLogs, deploymentLogs, environmentLogs, httpLogs) and a...

Scroll for all 13

Open Collections 1

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

Railway GraphQL Public API

OPEN COLLECTION

GraphQL 1

GraphQL schemas published by this provider.

Railway GraphQL Public API

Railway is a cloud application deployment platform (PaaS). Its entire programmatic surface is a **GraphQL API** - there is no REST API. The Public API is the same API that power...

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Railway App Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Railway App Rate Limits

6 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Railway App Finops

FINOPS

Event Specifications 1

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

Railway GraphQL Subscriptions (WebSocket)

AsyncAPI 2.6 description of Railway's **real-time log streaming** surface. Unlike many providers in this catalog, Railway **does** publish a documented public WebSocket transpor...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Railway — asyncapi rules

7 rules · 1 errors 6 warnings

SPECTRAL

Security Posture 2

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

Railway App Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Railway App Trust Center

SOC 2, HIPAA, GDPR

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: railway-app
url: https://raw.githubusercontent.com/api-evangelist/railway-app/refs/heads/main/apis.yml
name: Railway
kind: company
description: Railway is a cloud application deployment platform (PaaS) that builds, deploys, and scales services, databases,
  and cron jobs from a Git repository or Docker image. Its programmatic surface is a GraphQL-first Public API served at https://backboard.railway.com/graphql/v2
  - the same API that powers the Railway dashboard. There is no REST API; all queries and mutations are issued as GraphQL
  POST requests, and real-time build, deployment, and environment log streams are delivered as GraphQL subscriptions over
  a WebSocket endpoint at wss://backboard.railway.com/graphql/v2.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-02'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/railway-app.png
tags:
- Deployment
- Platform-as-a-Service
- Cloud
- Infrastructure
- GraphQL
- DevOps
- Real-Time
tags_raw:
- Deployment
- PaaS
- Cloud
- Infrastructure
- GraphQL
- DevOps
- Real-Time
created: '2026-07-02'
modified: '2026-07-02'
specificationVersion: '0.23'
apis:
- aid: railway-app:railway-app-projects-api
  name: Railway Projects API
  tags:
  - Project
  - GraphQL
  tags_raw:
  - Projects
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/reference/public-api
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/reference/public-api
    type: Documentation
  - url: https://docs.railway.com/integrations/api/graphql-overview
    type: APIReference
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for creating, reading, updating, and deleting Railway projects - the top-level container
    for services and environments. Queries include project and projects; mutations include projectCreate, projectUpdate, and
    projectDelete.
- aid: railway-app:railway-app-services-api
  name: Railway Services API
  tags:
  - Services
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/integrations/api/manage-services
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/integrations/api/manage-services
    type: Documentation
  - url: https://docs.railway.com/integrations/api/manage-services
    type: APIReference
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for managing services and their per-environment service instances. Queries include service
    and serviceInstance; mutations include serviceCreate, serviceUpdate, serviceInstanceUpdate, serviceConnect, serviceDisconnect,
    and serviceDelete.
- aid: railway-app:railway-app-deployments-api
  name: Railway Deployments API
  tags:
  - Deployment
  - GraphQL
  tags_raw:
  - Deployments
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/integrations/api/manage-services
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/integrations/api/manage-services
    type: Documentation
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for triggering and managing deployments. Queries include deployment and deployments; mutations
    include serviceInstanceDeployV2, serviceInstanceRedeploy, deploymentRedeploy, deploymentRestart, deploymentStop, deploymentCancel,
    and deploymentRemove.
- aid: railway-app:railway-app-environments-api
  name: Railway Environments API
  tags:
  - Environment
  - GraphQL
  tags_raw:
  - Environments
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/reference/public-api
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/reference/public-api
    type: Documentation
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for isolated project environments (for example production and staging). Queries include
    environment and environments; mutations include environmentCreate, environmentDelete, and environmentPatchCommitStage.
- aid: railway-app:railway-app-variables-api
  name: Railway Variables API
  tags:
  - Variables
  - Configuration
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/reference/public-api
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/reference/public-api
    type: Documentation
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for service and environment configuration variables. Queries include variables; mutations
    include variableUpsert, variableDelete, and variableCollectionUpsert for bulk updates.
- aid: railway-app:railway-app-volumes-api
  name: Railway Volumes API
  tags:
  - Volumes
  - Storage
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/reference/public-api
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/reference/public-api
    type: Documentation
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for persistent volumes attached to services. Queries include volume; mutations include volumeCreate,
    volumeUpdate, volumeDelete, and volumeInstanceUpdate for per-environment mounts.
- aid: railway-app:railway-app-plugins-api
  name: Railway Plugins API
  tags:
  - Plugins
  - Database
  - GraphQL
  tags_raw:
  - Plugins
  - Databases
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/reference/public-api
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/reference/public-api
    type: Documentation
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for legacy plugins (managed database add-ons such as Postgres, MySQL, Redis, and MongoDB).
    Queries include plugin; mutations include pluginCreate, pluginUpdate, pluginRestart, and pluginDelete.
- aid: railway-app:railway-app-custom-domains-api
  name: Railway Custom Domains API
  tags:
  - Custom Domains
  - Networking
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/reference/public-api
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/reference/public-api
    type: Documentation
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for attaching custom and Railway-provided domains to a service. Queries include customDomain
    and domains; mutations include customDomainCreate, customDomainDelete, and serviceDomainCreate.
- aid: railway-app:railway-app-tcp-proxies-api
  name: Railway TCP Proxies API
  tags:
  - TCP Proxy
  - Networking
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/reference/public-api
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/reference/public-api
    type: Documentation
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for exposing a service over raw TCP. Queries include tcpProxies; mutations include tcpProxyCreate
    and tcpProxyDelete.
- aid: railway-app:railway-app-usage-metrics-api
  name: Railway Usage and Metrics API
  tags:
  - Usage
  - Metrics
  - Billing
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/reference/public-api
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/reference/public-api
    type: Documentation
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for reading resource consumption and cost. Queries include usage, estimatedUsage, and metrics
    for per-service vCPU, memory, network egress, and disk utilization.
- aid: railway-app:railway-app-teams-api
  name: Railway Teams and Workspaces API
  tags:
  - Team
  - Workspace
  - Members
  - GraphQL
  tags_raw:
  - Teams
  - Workspaces
  - Members
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/reference/public-api
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/reference/public-api
    type: Documentation
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for the authenticated account, its workspaces, teams, and members. Queries include me, workspace,
    and workspaces; mutations include workspaceUpdate and teamMemberInvite.
- aid: railway-app:railway-app-webhooks-api
  name: Railway Webhooks API
  tags:
  - Webhook
  - Event
  - GraphQL
  tags_raw:
  - Webhooks
  - Events
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/reference/public-api
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/reference/public-api
    type: Documentation
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  description: GraphQL operations for project webhooks that notify external URLs of deployment status changes. Queries include
    projectWebhooks; mutations include webhookCreate, webhookUpdate, and webhookDelete.
- aid: railway-app:railway-app-logs-api
  name: Railway Logs API
  tags:
  - Logs
  - Subscription
  - WebSocket
  - GraphQL
  tags_raw:
  - Logs
  - Subscriptions
  - WebSocket
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.railway.com/reference/public-api
  baseURL: https://backboard.railway.com/graphql/v2
  properties:
  - url: https://docs.railway.com/reference/public-api
    type: Documentation
  - url: graphql/railway-app-graphql.md
    type: GraphQL
  - url: graphql/railway-app-schema.graphql
    type: GraphQL
  - url: asyncapi/railway-app-asyncapi.yml
    type: AsyncAPI
  description: GraphQL log surface for builds, deployments, environments, and HTTP traffic. Available both as point-in-time
    queries (buildLogs, deploymentLogs, environmentLogs, httpLogs) and as real-time GraphQL subscriptions over WebSocket at
    wss://backboard.railway.com/graphql/v2.
common:
- type: TrustCenter
  url: security/railway-app-trust-center.yml
- type: DomainSecurity
  url: security/railway-app-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/railwayapp
- type: LinkedIn
  url: https://www.linkedin.com/company/railwayapp
- type: Website
  url: https://railway.com/
- type: Documentation
  url: https://docs.railway.com
- type: Plans
  url: plans/railway-app-plans-pricing.yml
- type: RateLimits
  url: rate-limits/railway-app-rate-limits.yml
- type: FinOps
  url: finops/railway-app-finops.yml
- type: Blog
  url: https://blog.railway.com/rss.xml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Railway API — frequently asked questions

Does Railway have an API?

Yes. APIs.io lists 13 APIs from Railway, including Railway Projects API, Railway Services API and Railway Deployments API, and 10 more.

How much does the Railway API cost?

APIs.io lists 5 pricing plans for Railway, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the Railway API ready for AI agents?

Railway has a Kin Score of 28.6 out of 100 (thin) and an Agent Readiness score of 14.7 (agent-aware), scored by API Evangelist on 2026-11-02.

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