Maryland Transit Administration

The Maryland Transit Administration (MDOT MTA) supports open transit data initiatives and makes resources available to developers and applications. It primarily uses the General Transit Feed Specification (GTFS) and GTFS-RT to convey schedule, geographic, fare, vehicle position, and trip update data for Local Bus, Light Rail, Metro Subway, MARC Train, and Commuter Bus services in a standardized format.

Maryland Transit Administration publishes 6 APIs on the APIs.io network. Tagged areas include Government, GTFS, GTFS-RT, Public Transportation, and Transit.

Maryland Transit Administration’s developer surface includes developer portal, engineering blog, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

14.1/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

AccessFreemium

6 APIs

Government GTFSGTFS-RTPublic Transportation Transit Bus RailSubway

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 14.1/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 2.7 / 17

Operational Transparency 0.9 / 11

Contract Governance 0.0 / 10

Discoverability 6.3 / 9

Regulatory Posture 3.3 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 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 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 0 / 4

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.

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/.

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/maryland-transit-administration: 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 6

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

Rate Limits 1

Documented rate limits and quota policies.

Maryland Transit Administration Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Get Started 1

Portal, sign-up, and the first successful call

Portal

Portal

Documentation 2

Reference material describing how the API behaves

GTFS Specification

GTFS Specification

Swiftly Documentation

Swiftly Documentation

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: maryland-transit-administration
name: Maryland Transit Administration
description: The Maryland Transit Administration (MDOT MTA) supports open transit data initiatives and makes resources available
  to developers and applications. It primarily uses the General Transit Feed Specification (GTFS) and GTFS-RT to convey schedule,
  geographic, fare, vehicle position, and trip update data for Local Bus, Light Rail, Metro Subway, MARC Train, and Commuter
  Bus services in a standardized format.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/maryland-transit-administration.png
tags:
- Government
- GTFS
- GTFS-RT
- Public Transportation
- Transit
- Bus
- Rail
- Subway
url: https://raw.githubusercontent.com/api-evangelist/maryland-transit-administration/refs/heads/main/apis.yml
created: '2025-05-02'
modified: '2026-04-28'
specificationVersion: '0.23'
apis:
- aid: maryland-transit-administration:mta-local-bus-gtfs
  name: MDOT MTA Local Bus GTFS
  description: Static GTFS feed and GTFS-RT vehicle positions and trip updates for MDOT MTA Local Bus service. Includes GTFS-Fares
    V2 fare data.
  humanURL: https://www.mta.maryland.gov/developer-resources
  baseURL: https://feeds.mta.maryland.gov/gtfs/local-bus
  tags:
  - GTFS
  - Bus
  - Public Transportation
  properties:
  - type: Documentation
    url: https://www.mta.maryland.gov/developer-resources
  - type: GTFS
    url: https://feeds.mta.maryland.gov/gtfs/local-bus
- aid: maryland-transit-administration:mta-light-rail-gtfs
  name: MDOT MTA Light Rail GTFS
  description: Static GTFS feed and GTFS-RT vehicle positions and trip updates for MDOT MTA Light Rail service. Includes GTFS-Fares
    V2 fare data.
  humanURL: https://www.mta.maryland.gov/developer-resources
  baseURL: https://feeds.mta.maryland.gov/gtfs/light-rail
  tags:
  - GTFS
  - Light Rail
  - Public Transportation
  properties:
  - type: Documentation
    url: https://www.mta.maryland.gov/developer-resources
  - type: GTFS
    url: https://feeds.mta.maryland.gov/gtfs/light-rail
- aid: maryland-transit-administration:mta-metro-subway-gtfs
  name: MDOT MTA Metro Subway GTFS
  description: Static GTFS feed and GTFS-RT vehicle positions and trip updates for MDOT MTA Metro Subway service. Includes
    GTFS-Fares V2 fare data.
  humanURL: https://www.mta.maryland.gov/developer-resources
  baseURL: https://feeds.mta.maryland.gov/gtfs/metro
  tags:
  - GTFS
  - Subway
  - Public Transportation
  properties:
  - type: Documentation
    url: https://www.mta.maryland.gov/developer-resources
  - type: GTFS
    url: https://feeds.mta.maryland.gov/gtfs/metro
- aid: maryland-transit-administration:mta-marc-train-gtfs
  name: MDOT MTA MARC Train GTFS
  description: Static GTFS feed and GTFS-RT vehicle positions and trip updates for MDOT MTA MARC commuter rail service.
  humanURL: https://www.mta.maryland.gov/developer-resources
  baseURL: https://feeds.mta.maryland.gov/gtfs/marc
  tags:
  - GTFS
  - Rail
  - Public Transportation
  properties:
  - type: Documentation
    url: https://www.mta.maryland.gov/developer-resources
  - type: GTFS
    url: https://feeds.mta.maryland.gov/gtfs/marc
  - type: GTFS-RT Trip Updates
    url: https://mdotmta-gtfs-rt.s3.amazonaws.com/MARC+RT/marc-tu.pb
  - type: GTFS-RT Vehicle Positions
    url: https://mdotmta-gtfs-rt.s3.amazonaws.com/MARC+RT/marc-vp.pb
- aid: maryland-transit-administration:mta-commuter-bus-gtfs
  name: MDOT MTA Commuter Bus GTFS
  description: Static GTFS feed and GTFS-RT vehicle positions and trip updates for MDOT MTA Commuter Bus service.
  humanURL: https://www.mta.maryland.gov/developer-resources
  baseURL: https://feeds.mta.maryland.gov/gtfs/commuter-bus
  tags:
  - GTFS
  - Bus
  - Public Transportation
  properties:
  - type: Documentation
    url: https://www.mta.maryland.gov/developer-resources
  - type: GTFS
    url: https://feeds.mta.maryland.gov/gtfs/commuter-bus
- aid: maryland-transit-administration:mta-service-alerts
  name: MDOT MTA Service Alerts
  description: System-wide GTFS-RT service alerts feed for all MDOT MTA modes.
  humanURL: https://www.mta.maryland.gov/developer-resources
  baseURL: https://feeds.mta.maryland.gov/alerts.pb
  tags:
  - GTFS-RT
  - Alerts
  - Public Transportation
  properties:
  - type: Documentation
    url: https://www.mta.maryland.gov/developer-resources
  - type: GTFS-RT Alerts
    url: https://feeds.mta.maryland.gov/alerts.pb
common:
- type: VulnerabilityDisclosure
  url: security/maryland-transit-administration-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/maryland-transit-administration-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/mtamaryland
- type: Portal
  url: https://www.mta.maryland.gov/developer-resources
- type: Website
  url: https://www.mta.maryland.gov/
- type: GTFS Specification
  url: https://gtfs.org/
- type: Swiftly Documentation
  url: https://swiftly-inc.stoplight.io/docs/realtime-standalone/
- type: Integrations
  url: https://www.mta.maryland.gov/integrations
- type: Blog
  url: https://www.mta.maryland.gov/articles
integrations:
- name: State of Maryland
- name: Maryland Transit Administration
- name: Governor's Office
- name: MDOT
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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Maryland Transit Administration

Kin Score

APIs 6

MDOT MTA Local Bus GTFS

MDOT MTA Light Rail GTFS

MDOT MTA Metro Subway GTFS

MDOT MTA MARC Train GTFS

MDOT MTA Commuter Bus GTFS

MDOT MTA Service Alerts

Pricing Plans 1

Maryland Transit Administration Plans Pricing