Transit

Transit (the Transit App) is a real-time public transit trip planning and departures platform covering 1,100+ cities in 37 countries. The Transit REST API delivers real-time departures, nearby routes and stops, route details, multimodal trip planning, and service alerts, plus shared-mobility availability for bikes, scooters, and carshare. The API is publicly documented at api-doc.transitapp.com but access is key-gated - developers request a key that grants a free tier (5 requests/minute, 1,500 requests/month), and higher volumes are arranged with the partnerships team. Requests are authenticated with an apiKey header against https://external.transitapp.com/v3.

Transit publishes 7 APIs on the APIs.io network, including Locations API, Nearby Routes API, Nearby Stops API, and 4 more. Tagged areas include Transit, Public Transportation, Real-Time, Mobility, and Trip Planning.

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

🌐 Visit website 📡 Source on GitHub

36.3/100 thin ▬ flat Agent 23/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreeSelf serve⚡ Free to try

7 APIs

Transit Public Transportation Real-Time Mobility Trip Planning Departures GTFS MaaS

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 36.3/100 · thin

Contract Quality 14.0 / 25

Developer Ergonomics 4.8 / 20

Access Clarity 5.8 / 20

Operational Transparency 4.4 / 13

Contract Governance 0.0 / 12

Discoverability 7.4 / 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 0 / 7

Rate-Limit Signaling 7 / 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 Surface 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/transitapp: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 7

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

Rate Limits 1

Documented rate limits and quota policies.

Transitapp Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

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: transitapp
url: https://raw.githubusercontent.com/api-evangelist/transitapp/refs/heads/main/apis.yml
name: Transit
kind: company
description: Transit (the Transit App) is a real-time public transit trip planning and departures platform covering 1,100+
  cities in 37 countries. The Transit REST API delivers real-time departures, nearby routes and stops, route details, multimodal
  trip planning, and service alerts, plus shared-mobility availability for bikes, scooters, and carshare. The API is publicly
  documented at api-doc.transitapp.com but access is key-gated - developers request a key that grants a free tier (5 requests/minute,
  1,500 requests/month), and higher volumes are arranged with the partnerships team. Requests are authenticated with an apiKey
  header against https://external.transitapp.com/v3.
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/transitapp.png
tags:
- Transit
- Public Transportation
- Real-Time
- Mobility
- Trip Planning
- Departures
- GTFS
- MaaS
created: '2026-07-03'
modified: '2026-07-03'
specificationVersion: '0.23'
apis:
- aid: transitapp:transitapp-locations-api
  name: Transit Locations API
  description: Available transit networks and coverage near a location.
  humanURL: https://api-doc.transitapp.com/
  baseURL: https://external.transitapp.com/v3
  tags:
  - Locations
  properties:
  - type: OpenAPI
    url: openapi/transitapp-locations-api-openapi.yml
  - type: Documentation
    url: https://transitapp.com/partners/apis
  - type: APIReference
    url: https://api-doc.transitapp.com/
  - type: PostmanCollection
    url: collections/transitapp.postman_collection.json
  - type: OpenCollection
    url: collections/transitapp.opencollection.json
  - type: Documentation
    url: https://resources.transitapp.com/article/461-alerts
- aid: transitapp:transitapp-nearby-routes-api
  name: Transit Nearby Routes API
  description: Public transit routes near a location with real-time departures.
  humanURL: https://api-doc.transitapp.com/
  baseURL: https://external.transitapp.com/v3
  tags:
  - Nearby Routes
  properties:
  - type: OpenAPI
    url: openapi/transitapp-nearby-routes-api-openapi.yml
  - type: Documentation
    url: https://transitapp.com/partners/apis
  - type: APIReference
    url: https://api-doc.transitapp.com/
  - type: PostmanCollection
    url: collections/transitapp.postman_collection.json
  - type: OpenCollection
    url: collections/transitapp.opencollection.json
  - type: Documentation
    url: https://resources.transitapp.com/article/461-alerts
- aid: transitapp:transitapp-nearby-stops-api
  name: Transit Nearby Stops API
  description: Public transit stops near a location.
  humanURL: https://api-doc.transitapp.com/
  baseURL: https://external.transitapp.com/v3
  tags:
  - Nearby Stops
  properties:
  - type: OpenAPI
    url: openapi/transitapp-nearby-stops-api-openapi.yml
  - type: Documentation
    url: https://transitapp.com/partners/apis
  - type: APIReference
    url: https://api-doc.transitapp.com/
  - type: PostmanCollection
    url: collections/transitapp.postman_collection.json
  - type: OpenCollection
    url: collections/transitapp.opencollection.json
  - type: Documentation
    url: https://resources.transitapp.com/article/461-alerts
- aid: transitapp:transitapp-route-details-api
  name: Transit Route Details API
  description: Itineraries, stops, and geometry for a specific route.
  humanURL: https://api-doc.transitapp.com/
  baseURL: https://external.transitapp.com/v3
  tags:
  - Route Details
  properties:
  - type: OpenAPI
    url: openapi/transitapp-route-details-api-openapi.yml
  - type: Documentation
    url: https://transitapp.com/partners/apis
  - type: APIReference
    url: https://api-doc.transitapp.com/
  - type: PostmanCollection
    url: collections/transitapp.postman_collection.json
  - type: OpenCollection
    url: collections/transitapp.opencollection.json
  - type: Documentation
    url: https://resources.transitapp.com/article/461-alerts
- aid: transitapp:transitapp-service-alerts-api
  name: Transit Service Alerts API
  description: Service alerts and disruptions for routes, stops, and networks.
  humanURL: https://api-doc.transitapp.com/
  baseURL: https://external.transitapp.com/v3
  tags:
  - Service Alerts
  properties:
  - type: OpenAPI
    url: openapi/transitapp-service-alerts-api-openapi.yml
  - type: Documentation
    url: https://transitapp.com/partners/apis
  - type: APIReference
    url: https://api-doc.transitapp.com/
  - type: PostmanCollection
    url: collections/transitapp.postman_collection.json
  - type: OpenCollection
    url: collections/transitapp.opencollection.json
  - type: Documentation
    url: https://resources.transitapp.com/article/461-alerts
- aid: transitapp:transitapp-stop-departures-api
  name: Transit Stop Departures API
  description: Upcoming departures for a specific stop.
  humanURL: https://api-doc.transitapp.com/
  baseURL: https://external.transitapp.com/v3
  tags:
  - Stop Departures
  properties:
  - type: OpenAPI
    url: openapi/transitapp-stop-departures-api-openapi.yml
  - type: Documentation
    url: https://transitapp.com/partners/apis
  - type: APIReference
    url: https://api-doc.transitapp.com/
  - type: PostmanCollection
    url: collections/transitapp.postman_collection.json
  - type: OpenCollection
    url: collections/transitapp.opencollection.json
  - type: Documentation
    url: https://resources.transitapp.com/article/461-alerts
- aid: transitapp:transitapp-trip-planning-api
  name: Transit Trip Planning API
  description: Multimodal origin-to-destination trip planning.
  humanURL: https://api-doc.transitapp.com/
  baseURL: https://external.transitapp.com/v3
  tags:
  - Trip Planning
  properties:
  - type: OpenAPI
    url: openapi/transitapp-trip-planning-api-openapi.yml
  - type: Documentation
    url: https://transitapp.com/partners/apis
  - type: APIReference
    url: https://api-doc.transitapp.com/
  - type: PostmanCollection
    url: collections/transitapp.postman_collection.json
  - type: OpenCollection
    url: collections/transitapp.opencollection.json
  - type: Documentation
    url: https://resources.transitapp.com/article/461-alerts
common:
- type: AgenticAccess
  url: agentic-access/transitapp-agentic-access.yml
- type: DomainSecurity
  url: security/transitapp-domain-security.yml
- type: Authentication
  url: authentication/transitapp-authentication.yml
- type: GitHubOrganization
  url: https://github.com/TransitApp
- type: LinkedIn
  url: https://www.linkedin.com/company/transit-app
- type: Website
  url: https://transitapp.com
- type: Documentation
  url: https://api-doc.transitapp.com/
- type: Plans
  url: plans/transitapp-plans-pricing.yml
- type: RateLimits
  url: rate-limits/transitapp-rate-limits.yml
- type: FinOps
  url: finops/transitapp-finops.yml
- url: https://blog.transitapp.com/feed/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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