Transit
Transit is a Montreal-based mobility app that provides real-time public transit, multimodal trip planning, and shared-mobility navigation across 1,000+ cities worldwide. The consumer app displays nearby buses, subways, trains, bikeshare, scooters, carshare, and on-demand transit the moment it opens, and is augmented by "GO" crowdsourced vehicle locations contributed by millions of riders. Transit operates a partner program for transit agencies, mobility operators, and third-party developers, exposing its routing, real-time, alerts, and shared-mobility surface through the public Transit API (api-doc.transitapp.com, v4 stable). The v4 API is a single OpenAPI 3.1 contract covering nearby routes and stops, stop departures, multimodal trip planning, placemarks for shared-mobility vehicles and docks, available networks, route and trip details, service alerts, and real-time vehicle positions. Authentication is an apiKey header; the free tier allows 5 requests per minute and 1,500 calls per month after key approval, with custom commercial plans available through [email protected].
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Transit the way a machine reads it — 7 machine-readable artifacts across 3 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Transit scores 34.0/100 (thin), with a separate agent-readiness read of 41/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Transit
Each block below is one kind of artifact we hold for Transit. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 3
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Transit Map Layers API
The Map Layers API from Transit — 2 operation(s) for map layers.
Transit Public API
The Public API from Transit — 13 operation(s) for public.
Transit Vehicles API
The Vehicles API from Transit — 1 operation(s) for vehicles.
Open Collections 1
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Transit API (Stable)
OPEN COLLECTIONSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Transit — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 4
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 5
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 8
The organization behind the API
Scroll within the panel for all 8 ·
Other 4
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/transit-app · machine-readable index on apis.io