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 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

19.0/100 emerging ▬ flat Agent 0/100 human only Heartbeat 72/100 alive Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaid

1 API

Transit Public Transport Real-Time DataBay Area

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 19.0/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 9.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.6 / 9

Regulatory Posture 0.6 / 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

MCP Tool Quality 6 / 6

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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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
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) Ask about this →
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) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →

13 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 Ask about this →
Developer Ergonomics scores 19.0 — up to +16.2 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/bart/apis.yml: open an issue on github.com/api-evangelist/bart 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 →

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.

Bart API pricing

Prices published by Bart, read 2026-09-27 from www.bart.gov/guide/parking/pricing.

Plan	Price
Antioch Daily Fee	$3.40
Ashby Daily Fee	$3.80
Bay Fair Daily Fee	$3.40
Castro Valley Daily Fee	$3.40
Coliseum Daily Fee	$4.00
Colma Daily Fee	$3.40
Concord Daily Fee	$3.40
Daly City Daily Fee	$3.40

All 35 plans, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Bart Plans Pricing

35 plans

PLANS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Bart

11 quoted statements, read from Bart's own page on 2026-11-09.

PRIVACY

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 3

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

DataProcessing

DataProcessing

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)
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: low
  probe_state: unreadable
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
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
- type: DataProcessing
  url: privacy/bart-privacy-policy.yml
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

Bart API — frequently asked questions

Does Bart have an API?

Yes. APIs.io lists 1 API from Bart, including BART API.

How much does the Bart API cost?

Bart publishes its prices; its Antioch Daily Fee plan is $3.40 as of 2026-09-27. APIs.io lists 35 pricing plans for Bart, with each plan's price, limits and inclusions under Pricing on this page.

Is the Bart API ready for AI agents?

Bart has a Kin Score of 19.0 out of 100 (emerging) and an Agent Readiness score of 0.0 (human-only), scored by API Evangelist on 2026-11-13.

Work with this as data

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Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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Call it yourself

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Every operation they expose

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How their score was established

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