TransCAPI

TransCAPI provides a public transport API covering the United Kingdom and Ireland, with extensions to the Netherlands and Belgium. It offers live bus and train timetables, journey planning, rail fare data, disruption alerts, bus punctuality metrics, reachability maps, and webhook notifications. The service includes a free tier of 100 requests per day and paid plans for higher volume.

TransCAPI publishes 7 API contracts indexed on the APIs.io network, including Airports API, Alerts API, Bus API, and 4 more. Tagged areas include Company, Transport, API, UK, and Ireland.

The TransCAPI catalog on APIs.io includes 1 Spectral governance ruleset.

TransCAPI’s developer surface includes changelog, authentication, documentation, API reference, getting-started guide, support, engineering blog, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

64.3/100 strong Agent 35/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract

Company TransportAPIUKIreland

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 64.3/100 · strong

Contract Quality 9.0 / 21

Developer Ergonomics 11.6 / 17

Access Clarity 12.4 / 17

Operational Transparency 5.5 / 11

Contract Governance 8.1 / 10

Discoverability 5.6 / 9

Regulatory Posture 5.1 / 15

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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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Agent readiness — checks not met, largest first (exact, from this profile):

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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 42.2 — up to +14.5 composite points
Operational Transparency scores 49.5 — up to +6.6 composite points
Developer Ergonomics scores 68.3 — up to +6.3 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/transcapi/apis.yml: open an issue on github.com/api-evangelist/transcapi 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 7

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

TransCAPI Airports API

The Airports API from TransCAPI — 2 operation(s) for airports.

TransCAPI Alerts API

The Alerts API from TransCAPI — 3 operation(s) for alerts.

TransCAPI Bus API

The Bus API from TransCAPI — 9 operation(s) for bus.

TransCAPI Disruptions API

The Disruptions API from TransCAPI — 1 operation(s) for disruptions.

TransCAPI Journey API

The Journey API from TransCAPI — 3 operation(s) for journey.

TransCAPI Places API

The Places API from TransCAPI — 1 operation(s) for places.

TransCAPI Rail API

The Rail API from TransCAPI — 7 operation(s) for rail.

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Transcapi Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Transcapi Rate Limits

8 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

TransCAPI API Rules

9 rules · 7 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Transcapi Openapi Overlay

0 actions · update

UNRECORDED

Security Posture 2

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

Transcapi Authentication

2 schemes

SECURITY

Transcapi Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Transcapi Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Transcapi Agentic Access

28 operations · 4 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

Conventions

ErrorCatalog

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Postman

Postman

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

RateLimits

ChangeLog

ChangeLog

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: transcapi
name: TransCAPI
image: https://www.transcapi.com/static/img/favicon.ico
description: TransCAPI provides a public transport API covering the United Kingdom and Ireland, with extensions to the Netherlands
  and Belgium. It offers live bus and train timetables, journey planning, rail fare data, disruption alerts, bus punctuality
  metrics, reachability maps, and webhook notifications. The service includes a free tier of 100 requests per day and paid
  plans for higher volume.
url: https://artifacts.apis.io/transcapi/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-30 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-30'
modified: '2026-10-30'
tags:
- Company
- Transport
- API
- UK
- Ireland
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/transcapi-agentic-access.yml
- type: RateLimits
  url: rate-limits/transcapi-rate-limits.yml
- type: Plans
  url: plans/transcapi-plans-pricing.yml
- type: Spectral
  url: rules/transcapi-rules.yml
- type: Vocabulary
  url: vocabulary/transcapi-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: ChangeLog
  url: changelog/transcapi-changelog.yml
- type: Conventions
  url: conventions/transcapi-conventions.yml
- type: Authentication
  url: authentication/transcapi-authentication.yml
- type: ErrorCatalog
  url: errors/transcapi-problem-types.yml
- type: Conformance
  url: conformance/transcapi-conformance.yml
- type: LLMsTxt
  url: llms/transcapi-llms.txt
- type: Hosts
  url: hosts/transcapi-hosts.yml
- type: ChangeLog
  url: https://www.transcapi.com/docs/changelog
- type: DeveloperPortal
  url: https://api.transcapi.com`
- type: DomainSecurity
  url: security/transcapi-domain-security.yml
- type: Website
  url: https://www.transcapi.com/
- type: Documentation
  url: https://www.transcapi.com/docs/
- type: APIReference
  url: https://api.transcapi.com/openapi.json
- type: GettingStarted
  url: https://www.transcapi.com/docs/getting-started
- type: Support
  url: https://www.transcapi.com/contact
- type: Blog
  url: https://www.transcapi.com/blog/
- type: GitHubOrganization
  url: https://github.com/tcdataconsultants
- type: Pricing
  url: https://www.transcapi.com/pricing
- type: SignUp
  url: https://www.transcapi.com/signup
- type: TermsOfService
  url: https://www.transcapi.com/terms
- type: PrivacyPolicy
  url: https://www.transcapi.com/privacy
- type: Postman
  url: https://www.transcapi.com/static/transcapi.postman_collection.json
apis:
- aid: transcapi:transcapi-airports-api
  name: TransCAPI Airports API
  description: The Airports API from TransCAPI — 2 operation(s) for airports.
  humanURL: https://www.transcapi.com/docs/reference
  baseURL: https://api.transcapi.com
  tags:
  - Airports
  properties:
  - type: OpenAPI
    url: openapi/transcapi-airports-api-openapi.yml
- aid: transcapi:transcapi-alerts-api
  name: TransCAPI Alerts API
  description: The Alerts API from TransCAPI — 3 operation(s) for alerts.
  humanURL: https://www.transcapi.com/docs/reference
  baseURL: https://api.transcapi.com
  tags:
  - Alerts
  properties:
  - type: OpenAPI
    url: openapi/transcapi-alerts-api-openapi.yml
- aid: transcapi:transcapi-bus-api
  name: TransCAPI Bus API
  description: The Bus API from TransCAPI — 9 operation(s) for bus.
  humanURL: https://www.transcapi.com/docs/reference
  baseURL: https://api.transcapi.com
  tags:
  - Bus
  properties:
  - type: OpenAPI
    url: openapi/transcapi-bus-api-openapi.yml
- aid: transcapi:transcapi-disruptions-api
  name: TransCAPI Disruptions API
  description: The Disruptions API from TransCAPI — 1 operation(s) for disruptions.
  humanURL: https://www.transcapi.com/docs/reference
  baseURL: https://api.transcapi.com
  tags:
  - Disruptions
  properties:
  - type: OpenAPI
    url: openapi/transcapi-disruptions-api-openapi.yml
- aid: transcapi:transcapi-journey-api
  name: TransCAPI Journey API
  description: The Journey API from TransCAPI — 3 operation(s) for journey.
  humanURL: https://www.transcapi.com/docs/reference
  baseURL: https://api.transcapi.com
  tags:
  - Journey
  properties:
  - type: OpenAPI
    url: openapi/transcapi-journey-api-openapi.yml
- aid: transcapi:transcapi-places-api
  name: TransCAPI Places API
  description: The Places API from TransCAPI — 1 operation(s) for places.
  humanURL: https://www.transcapi.com/docs/reference
  baseURL: https://api.transcapi.com
  tags:
  - Places
  properties:
  - type: OpenAPI
    url: openapi/transcapi-places-api-openapi.yml
- aid: transcapi:transcapi-rail-api
  name: TransCAPI Rail API
  description: The Rail API from TransCAPI — 7 operation(s) for rail.
  humanURL: https://www.transcapi.com/docs/reference
  baseURL: https://api.transcapi.com
  tags:
  - Rail
  properties:
  - type: OpenAPI
    url: openapi/transcapi-rail-api-openapi.yml
x-enrichment:
  date: '2026-10-30'
  status: enriched
  artifacts_added: 27
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

TransCAPI — frequently asked questions

Does TransCAPI have an API?

Yes. APIs.io lists 7 APIs from TransCAPI, including TransCAPI Airports API, TransCAPI Alerts API and TransCAPI Bus API, and 4 more.

Is there an OpenAPI specification for the TransCAPI?

Yes. APIs.io indexes 7 OpenAPI specifications for TransCAPI, each linked for download from this page.

How do I authenticate with the TransCAPI?

TransCAPI uses bearer-token authentication (2 schemes). The details are profiled on APIs.io as Transcapi Authentication.

How much does the TransCAPI cost?

APIs.io lists 4 pricing plans for TransCAPI, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the TransCAPI ready for AI agents?

TransCAPI has a Kin Score of 64.3 out of 100 (strong) and an Agent Readiness score of 35.1 (agent-ready), scored by API Evangelist on 2026-10-31.

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