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 is listed with 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 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

15.2/100 emerging ▬ flat Agent 1/100 human only Front door AI 1/6 silent Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemium

6 APIs

Government GTFSGTFS-RTPublic Transportation Transit Bus RailSubway

Kin Score

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

Composite quality — 15.2/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.6 / 17

Access Clarity 1.3 / 17

Operational Transparency 2.0 / 11

Contract Governance 0.0 / 10

Discoverability 6.1 / 9

Regulatory Posture 1.8 / 15

Agent readiness — 1/100 · 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

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 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.

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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
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

12 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 7.9 — up to +18.4 composite points
Developer Ergonomics scores 21.4 — up to +15.7 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/maryland-transit-administration/apis.yml: open an issue on github.com/api-evangelist/maryland-transit-administration 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
Rail Sales and Distribution (OSDM, railway union, EU railway licences)	undeclared	-	-	-

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 1

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.

GTFS

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

APIs 6

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

MDOT MTA Local Bus GTFS

Static GTFS feed and GTFS-RT vehicle positions and trip updates for MDOT MTA Local Bus service. Includes GTFS-Fares V2 fare data.

MDOT MTA Light Rail GTFS

Static GTFS feed and GTFS-RT vehicle positions and trip updates for MDOT MTA Light Rail service. Includes GTFS-Fares V2 fare data.

MDOT MTA Metro Subway GTFS

Static GTFS feed and GTFS-RT vehicle positions and trip updates for MDOT MTA Metro Subway service. Includes GTFS-Fares V2 fare data.

MDOT MTA MARC Train GTFS

Static GTFS feed and GTFS-RT vehicle positions and trip updates for MDOT MTA MARC commuter rail service.

MDOT MTA Commuter Bus GTFS

Static GTFS feed and GTFS-RT vehicle positions and trip updates for MDOT MTA Commuter Bus service.

MDOT MTA Service Alerts

System-wide GTFS-RT service alerts feed for all MDOT MTA modes.

Maryland Transit Administration API pricing

Not yet checked against Maryland Transit Administration's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Maryland Transit Administration's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Maryland Transit Administration Plans Pricing

3 plans

PLANS

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.

Maryland Transit Administration Finops

FINOPS

Security Posture 2

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

Maryland Transit Administration Domain Security

TLSv1.2 · HSTS · DNSSEC · DMARC

SECURITY

Maryland Transit Administration Vulnerability Disclosure

no policy recorded

SECURITY

Resources

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

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: 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
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  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: '2026-11-06'
  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: Plans
  url: plans/maryland-transit-administration-plans-pricing.yml
- type: RateLimits
  url: rate-limits/maryland-transit-administration-rate-limits.yml
- type: FinOps
  url: finops/maryland-transit-administration-finops.yml
- 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

Maryland Transit Administration API — frequently asked questions

Does Maryland Transit Administration have an API?

Yes. APIs.io lists 6 APIs from Maryland Transit Administration, including MDOT MTA Local Bus GTFS, MDOT MTA Light Rail GTFS and MDOT MTA Metro Subway GTFS, and 3 more.

How much does the Maryland Transit Administration API cost?

APIs.io lists 3 pricing plans for Maryland Transit Administration, with each plan's price, limits and inclusions under Pricing on this page.

Is the Maryland Transit Administration API ready for AI agents?

Maryland Transit Administration has a Kin Score of 15.2 out of 100 (emerging) and an Agent Readiness score of 0.6 (human-only), scored by API Evangelist on 2026-11-06.

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