SJ

SJ is a company surfaced via the API Evangelist harvest backlog (source: stockholm-trip) and added to the network as a stub for full-pipeline profiling.

SJ is listed with 11 APIs on the APIs.io network, including Availabilities API, Booking API, Bookings API, and 8 more. Tagged areas include Company.

The SJ catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

SJ’s developer surface includes documentation and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

14.6/100 emerging ▬ flat Agent 13/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

11 APIs

Company

Kin Score

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

Composite quality — 14.6/100 · emerging

Contract Quality 4.6 / 19

Developer Ergonomics 0.7 / 15

Access Clarity 0.8 / 15

Operational Transparency 0.8 / 10

Contract Governance 1.8 / 9

Discoverability 3.1 / 8

Regulatory Posture 1.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 13/100 · agent aware

Machine-Readable Contract 18 / 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 0 / 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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

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

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
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

13 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 4.8 — up to +19.0 composite points
Contract Quality scores 24.4 — up to +18.9 composite points
Access Clarity scores 5.3 — up to +18.9 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/sj-se/apis.yml: open an issue on github.com/api-evangelist/sj-se 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 →

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 11

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

SJ API

Explore available APIs and their documentation, including Reseller API and Customer API.

SJ Availabilities API

The Availabilities API from SJ — 2 operation(s) for availabilities.

SJ Booking API

The Booking API from SJ — 2 operation(s) for booking.

SJ Bookings API

The Bookings API from SJ — 2 operation(s) for bookings.

SJ Contacts API

The Contacts API from SJ — 1 operation(s) for contacts.

SJ Exchange Offers API

The Exchange Offers API from SJ — 1 operation(s) for exchange offers.

SJ Exchange Operations API

The Exchange Operations API from SJ — 1 operation(s) for exchange operations.

SJ Fulfillments API

The Fulfillments API from SJ — 1 operation(s) for fulfillments.

SJ Offers API

The Offers API from SJ — 2 operation(s) for offers.

SJ Passenger API

The Passenger API from SJ — 1 operation(s) for passenger.

SJ Tenant Id API

The Tenant Id API from SJ — 1 operation(s) for tenant id.

Scroll for all 11

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Sj Se Context

16 classes · 21 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

SJ API Rules

9 rules · 8 errors 1 info

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

PatchPassengerRequest

2 properties

JSON SCHEMA

PostBookingRequest

5 properties

JSON SCHEMA

PostBookingRequest2

3 properties

JSON SCHEMA

PostContactsContactidResponse

2 properties

JSON SCHEMA

PostOffersRequest

4 properties

JSON SCHEMA

PostOffersRequest2

4 properties

JSON SCHEMA

Security Posture 1

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

Sj Se Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

StatusPage

StatusPage

Commercial 1

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: sj-se
name: SJ
description: 'SJ is a company surfaced via the API Evangelist harvest backlog (source: stockholm-trip) and added to the network
  as a stub for full-pipeline profiling.'
url: https://raw.githubusercontent.com/api-evangelist/sj-se/refs/heads/main/apis.yml
x-type: company
x-source: harvest:stockholm-trip
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-15 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: none
  source:
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.20'
created: '2026-10-15'
modified: '2026-10-15'
tags:
- Company
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/sj-se-rules.yml
- type: JSONLD
  url: json-ld/sj-se-context.jsonld
- type: Vocabulary
  url: vocabulary/sj-se-vocabulary.yml
- type: DataModel
  url: data-model/sj-se-data-model.yml
- type: Conformance
  url: conformance/sj-se-conformance.yml
- type: Hosts
  url: hosts/sj-se-hosts.yml
- type: Vendors
  url: vendors/sj-se-vendors.yml
- type: TermsOfService
  url: https://developer.sj.se/terms-and-conditions
- type: StatusPage
  url: https://developer.sj.se/status
- type: Documentation
  url: https://developer.sj.se/
- type: DomainSecurity
  url: security/sj-se-domain-security.yml
- type: Website
  url: https://sj.se/
apis:
- name: SJ API
  description: Explore available APIs and their documentation, including Reseller API and Customer API.
  humanURL: https://developer.sj.se/apis
  baseURL: null
  x-coverage:
    state: unreadable
    reason: no-machine-readable-spec
    detail: Developer portal lists APIs but no machine‑readable OpenAPI spec was found on any host.
    evidence:
    - url: https://developer.sj.se/apis
      status: 200
    checked: '2026-10-15'
  properties: []
  aid: sj-se:sj-api
- aid: sj-se:sj-se-availabilities-api
  name: SJ Availabilities API
  description: The Availabilities API from SJ — 2 operation(s) for availabilities.
  humanURL: https://developer.sj.se/apis
  baseURL: https://login.microsoftonline.com
  tags:
  - Availabilities
  properties:
  - type: OpenAPI
    url: openapi/sj-se-availabilities-api-openapi.yml
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-patch-passenger-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-contacts-contactid-response-schema.json
- aid: sj-se:sj-se-booking-api
  name: SJ Booking API
  description: The Booking API from SJ — 2 operation(s) for booking.
  humanURL: https://developer.sj.se/apis
  baseURL: https://login.microsoftonline.com
  tags:
  - Booking
  properties:
  - type: OpenAPI
    url: openapi/sj-se-booking-api-openapi.yml
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-patch-passenger-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-contacts-contactid-response-schema.json
- aid: sj-se:sj-se-bookings-api
  name: SJ Bookings API
  description: The Bookings API from SJ — 2 operation(s) for bookings.
  humanURL: https://developer.sj.se/apis
  baseURL: https://login.microsoftonline.com
  tags:
  - Booking
  tags_raw:
  - Bookings
  properties:
  - type: OpenAPI
    url: openapi/sj-se-bookings-api-openapi.yml
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-patch-passenger-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-contacts-contactid-response-schema.json
- aid: sj-se:sj-se-contacts-api
  name: SJ Contacts API
  description: The Contacts API from SJ — 1 operation(s) for contacts.
  humanURL: https://developer.sj.se/apis
  baseURL: https://login.microsoftonline.com
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/sj-se-contacts-api-openapi.yml
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-patch-passenger-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-contacts-contactid-response-schema.json
- aid: sj-se:sj-se-exchange-offers-api
  name: SJ Exchange Offers API
  description: The Exchange Offers API from SJ — 1 operation(s) for exchange offers.
  humanURL: https://developer.sj.se/apis
  baseURL: https://login.microsoftonline.com
  tags:
  - Exchange Offers
  properties:
  - type: OpenAPI
    url: openapi/sj-se-exchange-offers-api-openapi.yml
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-patch-passenger-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-contacts-contactid-response-schema.json
- aid: sj-se:sj-se-exchange-operations-api
  name: SJ Exchange Operations API
  description: The Exchange Operations API from SJ — 1 operation(s) for exchange operations.
  humanURL: https://developer.sj.se/apis
  baseURL: https://login.microsoftonline.com
  tags:
  - Exchange Operations
  properties:
  - type: OpenAPI
    url: openapi/sj-se-exchange-operations-api-openapi.yml
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-patch-passenger-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-contacts-contactid-response-schema.json
- aid: sj-se:sj-se-fulfillments-api
  name: SJ Fulfillments API
  description: The Fulfillments API from SJ — 1 operation(s) for fulfillments.
  humanURL: https://developer.sj.se/apis
  baseURL: https://login.microsoftonline.com
  tags:
  - Fulfillments
  properties:
  - type: OpenAPI
    url: openapi/sj-se-fulfillments-api-openapi.yml
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-patch-passenger-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-contacts-contactid-response-schema.json
- aid: sj-se:sj-se-offers-api
  name: SJ Offers API
  description: The Offers API from SJ — 2 operation(s) for offers.
  humanURL: https://developer.sj.se/apis
  baseURL: https://login.microsoftonline.com
  tags:
  - Offers
  properties:
  - type: OpenAPI
    url: openapi/sj-se-offers-api-openapi.yml
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-patch-passenger-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-contacts-contactid-response-schema.json
- aid: sj-se:sj-se-passenger-api
  name: SJ Passenger API
  description: The Passenger API from SJ — 1 operation(s) for passenger.
  humanURL: https://developer.sj.se/apis
  baseURL: https://login.microsoftonline.com
  tags:
  - Passenger
  properties:
  - type: OpenAPI
    url: openapi/sj-se-passenger-api-openapi.yml
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-patch-passenger-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-contacts-contactid-response-schema.json
- aid: sj-se:sj-se-tenant-id-api
  name: SJ Tenant Id API
  description: The Tenant Id API from SJ — 1 operation(s) for tenant id.
  humanURL: https://developer.sj.se/apis
  baseURL: https://login.microsoftonline.com
  tags:
  - Tenant Id
  properties:
  - type: OpenAPI
    url: openapi/sj-se-tenant-id-api-openapi.yml
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-offers-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-booking-request2-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-patch-passenger-request-schema.json
  - type: JSONSchema
    url: json-schema/sj-se-post-contacts-contactid-response-schema.json
x-coverage:
  state: none
  reason: no-developer-program
  method: derived
  generated: '2026-10-15'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company publishes no developer documentation host and no machine-readable contract on its own domain
  evidence:
  - url: https://sj.se/
    status: 200
x-enrichment:
  date: '2026-10-15'
  status: enriched
  artifacts_added: 17
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

SJ API — frequently asked questions

Does SJ have an API?

Yes. APIs.io lists 11 APIs from SJ, including SJ API, SJ Availabilities API and SJ Booking API, and 8 more.

Is there an OpenAPI specification for the SJ API?

Yes. APIs.io indexes 10 OpenAPI specifications for SJ, each linked for download from this page.

Is the SJ API ready for AI agents?

SJ has a Kin Score of 14.6 out of 100 (emerging) and an Agent Readiness score of 12.7 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

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One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

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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