Bart

Bay Area Rapid Transit (BART) provides public transit services across the San Francisco Bay Area. It offers real‑time departure information, schedule data, station details, fare information, and developer resources for building applications that integrate transit data. The BART API enables developers to access schedule, real‑time, and system information to create journey planners, alerts, and transit‑related services.

Bart is listed with 1 API on the APIs.io network. Tagged areas include Transit, Public Transport, Real-Time Data, and Bay Area.

Bart’s developer surface includes signup flow, pricing, documentation, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

21.5/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

1 API

TransitPublic TransportReal-Time DataBay Area

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 21.5/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 11.2 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.6 / 9

Regulatory Posture 1.5 / 15

Agent readiness — 0/100 · 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 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 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

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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<a href="https://apis.io/providers/bart/"><img src="https://apis.io/badge/bart/card.svg" alt="Bart on APIs.io — Kin Score by API Evangelist"></a>

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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/bart: 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 1

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

BART API

Public transit data API providing schedules, real-time departures, station info and fare data.

Pricing Plans 1

Published pricing tiers and plan structures.

Bart Plans Pricing

35 plans

PLANS

Security Posture 1

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

Bart Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

PrivacyPolicy

PrivacyPolicy

Pricing

Pricing

Company 2

The organization behind the API

Newsroom

Newsroom

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: bart
name: Bart
description: Bay Area Rapid Transit (BART) provides public transit services across the San Francisco Bay Area. It offers real‑time
  departure information, schedule data, station details, fare information, and developer resources for building applications
  that integrate transit data. The BART API enables developers to access schedule, real‑time, and system information to create
  journey planners, alerts, and transit‑related services.
url: https://raw.githubusercontent.com/api-evangelist/bart/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment pass 2026-09-27 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-09-27'
modified: '2026-09-27'
tags:
- Transit
- Public Transport
- Real-Time Data
- Bay Area
tags_raw:
- Transit
- Public Transport
- API
- Real-time Data
- Bay Area
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/bart-plans-pricing.yml
- type: LLMsTxt
  url: llms/bart-llms.txt
- type: Hosts
  url: hosts/bart-hosts.yml
- type: Vendors
  url: vendors/bart-vendors.yml
- type: SignUp
  url: https://www.bart.gov/signup
- type: PrivacyPolicy
  url: https://www.bart.gov/siteinfo/privacy
- type: Pricing
  url: https://www.bart.gov/guide/parking/pricing
- type: Newsroom
  url: https://www.bart.gov/news/articles
- type: Documentation
  url: https://api.bart.gov/docs/bsa/
- type: DeveloperPortal
  url: https://www.bart.gov/about/developers
- type: DomainSecurity
  url: security/bart-domain-security.yml
- type: Website
  url: https://www.bart.gov
apis:
- name: BART API
  description: Public transit data API providing schedules, real-time departures, station info and fare data.
  humanURL: https://www.bart.gov/about/developers
  baseURL: null
  aid: bart:bart-api
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: API documentation is served as HTML pages without a machine‑readable OpenAPI spec.
  evidence:
  - url: https://api.bart.gov/docs
    status: 200
  checked: '2026-09-27'
x-enrichment:
  date: '2026-09-27'
  status: enriched
  artifacts_added: 7
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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