OneBusAway

OneBusAway is an open-source real-time transit information platform managed by the Open Transit Software Foundation. It provides transit riders with real-time arrival predictions, service alerts, and schedule data for buses, trains, and other transit modes. The platform exposes a RESTful API that lets developers access agency information, stop data, route details, trip information, real-time arrivals and departures, vehicle positions, and service alerts. Authentication uses an API key passed as a query parameter. The reference deployment runs at api.pugetsound.onebusaway.org; many transit agencies host their own OneBusAway instances using the same API contract. Official SDKs are published for Go, Java, Kotlin, JavaScript/Node.js, Python, and Ruby, all generated from a shared OpenAPI 3.0 specification in the sdk-config repository.

OneBusAway publishes 2 APIs on the APIs.io network: default API and Where API. Tagged areas include Transit, Public Transit, Real-Time, Arrivals, and Departures.

The OneBusAway catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

OneBusAway’s developer surface includes authentication, developer portal, documentation, getting-started guide, and 24 more developer resources.

🌐 Visit website 📡 Source on GitHub

33.0/100 thin ▬ flat Agent 23/100 agent aware self hosted · Apache-2.0 Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreeSelf serve⚡ Free to try

1 APIs

Transit Public Transit Real-Time Arrivals Departures Bus GTFS Open-SourceStop DataTrip Planning Service AlertsVehicle PositionsOpen Data

Kin Score

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

Composite quality — 33.0/100 · thin

Contract Quality 9.3 / 19

Developer Ergonomics 7.5 / 15

Access Clarity 3.2 / 15

Operational Transparency 0.3 / 10

Contract Governance 0.9 / 9

Discoverability 5.1 / 8

Regulatory Posture 4.7 / 15

Open Source Surface 0.0 / 10

Agent readiness — 23/100 · agent aware

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 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector 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.

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against 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 75 points between them, because both conditional facets apply and carry 25 points together. 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/.

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/onebusaway: 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 2

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

OneBusAway default API

The default API from OneBusAway — 13 operation(s) for default.

OneBusAway Where API

The Where API from OneBusAway — 17 operation(s) for where.

Open Collections 3

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

API Collection

OPEN COLLECTION

OneBusAway default API

OPEN COLLECTION

OneBusAway default Where API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Onebusaway Plans Pricing

2 plans

PLANS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

context Context

152 classes · 0 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

OneBusAway API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 61

Standalone JSON Schema definitions for this provider's data models.

Agency

10 properties

JSON SCHEMA

AgencyResponse

2 properties

JSON SCHEMA

ArrivalDepartureForStop

34 properties

JSON SCHEMA

ArrivalDepartureForStopResponse

2 properties

JSON SCHEMA

ArrivalsDeparturesForLocationResponse

2 properties

JSON SCHEMA

ArrivalsDeparturesForStopResponse

2 properties

JSON SCHEMA

BlockConfiguration

3 properties

JSON SCHEMA

BlockEntry

2 properties

JSON SCHEMA

BlockResponse

2 properties

JSON SCHEMA

BlockStopTime

4 properties

JSON SCHEMA

BlockTrip

4 properties

JSON SCHEMA

Config

5 properties

JSON SCHEMA

ConfigResponse

2 properties

JSON SCHEMA

Coverage

5 properties

JSON SCHEMA

CoverageResponse

3 properties

JSON SCHEMA

CurrentTime

2 properties

JSON SCHEMA

CurrentTimeResponse

2 properties

JSON SCHEMA

DetailedScheduleStopTime

8 properties

JSON SCHEMA

Location

2 properties

JSON SCHEMA

Polylines

3 properties

JSON SCHEMA

Reference

6 properties

JSON SCHEMA

ResponseWrapper

4 properties

JSON SCHEMA

Route

10 properties

JSON SCHEMA

RouteIDsForAgencyResponse

3 properties

JSON SCHEMA

RouteResponse

2 properties

JSON SCHEMA

RoutesForAgencyResponse

3 properties

JSON SCHEMA

RoutesForLocationResponse

4 properties

JSON SCHEMA

ScheduleEntry

4 properties

JSON SCHEMA

ScheduleForRouteResponse

1 properties

JSON SCHEMA

ScheduleForStopEntry

3 properties

JSON SCHEMA

ScheduleForStopResponse

2 properties

JSON SCHEMA

ScheduleFrequency

6 properties

JSON SCHEMA

ScheduleStopTime

7 properties

JSON SCHEMA

SearchRouteResponse

4 properties

JSON SCHEMA

SearchStopResponse

4 properties

JSON SCHEMA

ShapeResponse

2 properties

JSON SCHEMA

Situation

12 properties

JSON SCHEMA

Stop

11 properties

JSON SCHEMA

StopGrouping

4 properties

JSON SCHEMA

StopIDsForAgencyResponse

3 properties

JSON SCHEMA

StopResponse

2 properties

JSON SCHEMA

StopRouteDirectionSchedule

3 properties

JSON SCHEMA

StopRouteSchedule

2 properties

JSON SCHEMA

StopTime

6 properties

JSON SCHEMA

StopTripGrouping

5 properties

JSON SCHEMA

StopsForAgencyResponse

4 properties

JSON SCHEMA

StopsForLocationResponse

4 properties

JSON SCHEMA

StopsForRouteResponse

2 properties

JSON SCHEMA

TimeWindow

2 properties

JSON SCHEMA

Trip

11 properties

JSON SCHEMA

TripDetails

6 properties

JSON SCHEMA

TripDetailsResponse

2 properties

JSON SCHEMA

TripEntry

6 properties

JSON SCHEMA

TripResponse

2 properties

JSON SCHEMA

TripSchedule

5 properties

JSON SCHEMA

TripStatus

27 properties

JSON SCHEMA

TripVehicleResponse

2 properties

JSON SCHEMA

TripWithStopTimes

2 properties

JSON SCHEMA

TripsForLocationResponse

4 properties

JSON SCHEMA

VehicleStatus

11 properties

JSON SCHEMA

VehiclesForAgencyResponse

3 properties

JSON SCHEMA

Scroll for all 61

Examples 30

Example request and response payloads for these APIs.

Getarrivalsanddeparturesforlocation

7 fields

EXAMPLE

Get_Api_Where_Agencies With Coverage.Json

6 fields

EXAMPLE

Get_Api_Where_Agency_Agencyid.Json

7 fields

EXAMPLE

Get_Api_Where_Arrival And Departure For Stop_Stopid.Json

7 fields

EXAMPLE

Get_Api_Where_Arrivals And Departures For Stop_Stopid.Json

7 fields

EXAMPLE

Get_Api_Where_Block_Blockid.Json

6 fields

EXAMPLE

Get_Api_Where_Config.Json

6 fields

EXAMPLE

Get_Api_Where_Current Time.Json

6 fields

EXAMPLE

Get_Api_Where_Route Ids For Agency_Agencyid.Json

6 fields

EXAMPLE

Get_Api_Where_Route_Routeid.Json

7 fields

EXAMPLE

Get_Api_Where_Routes For Agency_Agencyid.Json

7 fields

EXAMPLE

Get_Api_Where_Routes For Location.Json

7 fields

EXAMPLE

Get_Api_Where_Schedule For Route_Routeid.Json

7 fields

EXAMPLE

Get_Api_Where_Schedule For Stop_Stopid.Json

7 fields

EXAMPLE

Get_Api_Where_Shape_Shapeid.Json

7 fields

EXAMPLE

Get_Api_Where_Stop Ids For Agency_Agencyid.Json

6 fields

EXAMPLE

Get_Api_Where_Stop_Stopid.Json

6 fields

EXAMPLE

Get_Api_Where_Stops For Agency_Agencyid.Json

6 fields

EXAMPLE

Get_Api_Where_Stops For Location.Json

7 fields

EXAMPLE

Get_Api_Where_Stops For Route_Routeid.Json

6 fields

EXAMPLE

Get_Api_Where_Trip Details_Tripid.Json

7 fields

EXAMPLE

Get_Api_Where_Trip For Vehicle_Vehicleid.Json

7 fields

EXAMPLE

Get_Api_Where_Trip_Tripid.Json

6 fields

EXAMPLE

Get_Api_Where_Trips For Location.Json

7 fields

EXAMPLE

Get_Api_Where_Trips For Route_Routeid.Json

7 fields

EXAMPLE

Get_Api_Where_Vehicles For Agency_Agencyid.Json

6 fields

EXAMPLE

Reportproblemwithstop

7 fields

EXAMPLE

Reportproblemwithtrip

7 fields

EXAMPLE

Searchroute

7 fields

EXAMPLE

Searchstop

7 fields

EXAMPLE

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Security Posture 2

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

Onebusaway Authentication

apiKey · 1 scheme

SECURITY

Onebusaway Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Onebusaway Agentic Access

30 operations

30 operations · 0 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

GettingStarted

GettingStarted

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

Documentation

Documentation

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 14

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

GitHubOrganization

GitHubRepository

GitHubRepository

GitHubRepository

GitHubRepository

GitHubRepository

GitHubRepository

GitHubRepository

GitHubRepository

GitHubRepository

GitHubRepository

GitHubRepository

GitHubRepository

Scroll for all 14

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Commercial 2

Pricing, plans, and the legal terms of use

License

License

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

AppStore

AppStore

PlayStore

PlayStore

Source (apis.yml)

aid: onebusaway
name: OneBusAway
description: OneBusAway is an open-source real-time transit information platform managed by the Open Transit Software Foundation.
  It provides transit riders with real-time arrival predictions, service alerts, and schedule data for buses, trains, and
  other transit modes. The platform exposes a RESTful API that lets developers access agency information, stop data, route
  details, trip information, real-time arrivals and departures, vehicle positions, and service alerts. Authentication uses
  an API key passed as a query parameter. The reference deployment runs at api.pugetsound.onebusaway.org; many transit agencies
  host their own OneBusAway instances using the same API contract. Official SDKs are published for Go, Java, Kotlin, JavaScript/Node.js,
  Python, and Ruby, all generated from a shared OpenAPI 3.0 specification in the sdk-config repository.
type: Index
deliveryModel:
  model: self-hosted
  license: Apache-2.0
  open_source: true
  commercial: false
  callable_host: true
  label: Self-hosted open source · you run it yourself
  confidence: high
  source:
  - license
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
position: Producing
access: Open
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/onebusaway.png
tags:
- Transit
- Public Transit
- Real-Time
- Arrivals
- Departures
- Bus
- GTFS
- Open-Source
- Stop Data
- Trip Planning
- Service Alerts
- Vehicle Positions
- Open Data
tags_raw:
- Transit
- Public Transit
- Real-Time
- Arrivals
- Departures
- Bus
- GTFS
- Open Source
- Stop Data
- Trip Planning
- Service Alerts
- Vehicle Positions
- Open Data
url: https://raw.githubusercontent.com/api-evangelist/onebusaway/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
apis:
- aid: onebusaway:onebusaway-default-api
  name: OneBusAway default API
  description: The default API from OneBusAway — 13 operation(s) for default.
  humanURL: https://developer.onebusaway.org/api/where
  baseURL: https://api.pugetsound.onebusaway.org
  tags: []
  tags_raw:
  - default
  properties:
  - type: OpenAPI
    url: openapi/onebusaway-default-api-openapi.yml
  - type: Documentation
    url: https://developer.onebusaway.org/api/where
  - type: Documentation
    url: https://developer.onebusaway.org/api/where/methods
  - type: Documentation
    url: https://developer.onebusaway.org/api/where/elements
  - type: SDKs
    url: https://developer.onebusaway.org/api/sdk
  - type: GitHubRepository
    url: https://github.com/OneBusAway/sdk-config
- aid: onebusaway:onebusaway-where-api
  name: OneBusAway Where API
  description: The Where API from OneBusAway — 17 operation(s) for where.
  humanURL: https://developer.onebusaway.org/api/where
  baseURL: https://api.pugetsound.onebusaway.org
  tags:
  - Where
  properties:
  - type: OpenAPI
    url: openapi/onebusaway-where-api-openapi.yml
  - type: Documentation
    url: https://developer.onebusaway.org/api/where
  - type: Documentation
    url: https://developer.onebusaway.org/api/where/methods
  - type: Documentation
    url: https://developer.onebusaway.org/api/where/elements
  - type: SDKs
    url: https://developer.onebusaway.org/api/sdk
  - type: GitHubRepository
    url: https://github.com/OneBusAway/sdk-config
common:
- type: IssueTracker
  url: https://github.com/OneBusAway/sdk-config/issues
- type: License
  name: Apache-2.0
  url: https://github.com/OneBusAway/sdk-config/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/onebusaway-agentic-access.yml
- type: DomainSecurity
  url: security/onebusaway-domain-security.yml
- type: Authentication
  url: authentication/onebusaway-authentication.yml
- type: Website
  url: https://opentransitsoftwarefoundation.org/onebusaway/
- type: Portal
  url: https://developer.onebusaway.org/
- type: Documentation
  url: https://developer.onebusaway.org/api/where
- type: Documentation
  url: https://developer.onebusaway.org/api/where/methods
- type: Documentation
  url: https://developer.onebusaway.org/api/where/elements
- type: GettingStarted
  url: https://developer.onebusaway.org/guides/api-webapp-configuration-guide
- type: SDKs
  url: https://developer.onebusaway.org/api/sdk
- type: GitHubOrganization
  url: https://github.com/OneBusAway
- type: GitHubRepository
  url: https://github.com/OneBusAway/onebusaway-application-modules
  name: Core Application Modules (Java)
- type: GitHubRepository
  url: https://github.com/OneBusAway/maglev
  name: Maglev — Next-Gen OBA REST API Server (Go)
- type: GitHubRepository
  url: https://github.com/OneBusAway/sdk-config
  name: OpenAPI Specification and SDK Config
- type: GitHubRepository
  url: https://github.com/OneBusAway/js-sdk
  name: JavaScript / Node.js SDK
- type: GitHubRepository
  url: https://github.com/OneBusAway/python-sdk
  name: Python SDK
- type: GitHubRepository
  url: https://github.com/OneBusAway/go-sdk
  name: Go SDK
- type: GitHubRepository
  url: https://github.com/OneBusAway/java-sdk
  name: Java SDK
- type: GitHubRepository
  url: https://github.com/OneBusAway/kotlin-sdk
  name: Kotlin SDK
- type: GitHubRepository
  url: https://github.com/OneBusAway/ruby-sdk
  name: Ruby SDK
- type: GitHubRepository
  url: https://github.com/OneBusAway/onebusaway-android
  name: Android App
- type: GitHubRepository
  url: https://github.com/OneBusAway/onebusaway-ios
  name: iOS App
- type: GitHubRepository
  url: https://github.com/OneBusAway/wayfinder
  name: Wayfinder Web App (SvelteKit)
- type: AppStore
  url: https://apps.apple.com/app/onebusaway/id329380089
- type: PlayStore
  url: https://play.google.com/store/apps/details?id=com.joulespersecond.seattlebusbot
- type: PrivacyPolicy
  url: https://opentransitsoftwarefoundation.org/privacy-policy/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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