Yokohama City Open Data

Yokohama City Open Data is a municipal government open-data portal for Japan running CKAN. It exposes the CKAN catalog API, a standardized machine-readable interface over approximately 657 datasets, supporting programmatic dataset search, metadata retrieval, and resource access. Because it runs CKAN, it shares a consistent API surface with every other CKAN portal, making it uniformly harvestable and integrable.

Yokohama City Open Data publishes 1 API on the APIs.io network. Tagged areas include Open Data, CKAN, Data Catalog, DCAT, and Government Data.

Yokohama City Open Data’s developer surface includes documentation and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

16.2/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFree

1 APIs

Open DataCKANData CatalogDCATGovernment DataMunicipal GovernmentJapan

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 16.2/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 1.7 / 20

Commercial Clarity 5.8 / 20

Operational Transparency 2.7 / 13

Governance 0.0 / 12

Discoverability 6.9 / 10

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

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 7 / 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

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/data-city-yokohama-lg-jp: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Rate Limits 1

Documented rate limits and quota policies.

Data City Yokohama Lg Jp Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Review

Review

Source (apis.yml)

aid: data-city-yokohama-lg-jp
name: Yokohama City Open Data
description: Yokohama City Open Data is a municipal government open-data portal for Japan running CKAN. It exposes the CKAN
  catalog API, a standardized machine-readable interface over approximately 657 datasets, supporting programmatic dataset
  search, metadata retrieval, and resource access. Because it runs CKAN, it shares a consistent API surface with every other
  CKAN portal, making it uniformly harvestable and integrable.
kind: government
accessModel:
  pricing: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/data-city-yokohama-lg-jp.png
url: https://raw.githubusercontent.com/api-evangelist/data-city-yokohama-lg-jp/refs/heads/main/apis.yml
tags:
- Open Data
- CKAN
- Data Catalog
- DCAT
- Government Data
- Municipal Government
- Japan
created: '2026-06-04'
modified: '2026-06-04'
specificationVersion: '0.19'
apis:
- aid: data-city-yokohama-lg-jp:catalog
  name: Yokohama City Open Data CKAN Action API
  description: CKAN Action API for Yokohama City Open Data, a consistent JSON-over-HTTP interface over a catalog of 657 datasets.
    Standard actions include package_search, package_show, package_list, organization_list, group_list, tag_list, and resource_search;
    datastore_search is available where the DataStore extension is enabled. Base URL https://data.city.yokohama.lg.jp/api/3/action/.
  humanURL: https://data.city.yokohama.lg.jp
  baseURL: https://data.city.yokohama.lg.jp/api/3/action
  tags:
  - CKAN
  - Action API
  - Open Data
  - Catalog
  - REST
  - JSON
  properties:
  - type: Documentation
    url: https://docs.ckan.org/en/latest/api/
  - type: Website
    url: https://data.city.yokohama.lg.jp
  - type: x-api-endpoint
    url: https://data.city.yokohama.lg.jp/api/3/action/status_show
common:
- type: DomainSecurity
  url: security/data-city-yokohama-lg-jp-domain-security.yml
- type: Website
  url: https://data.city.yokohama.lg.jp
- type: Documentation
  url: https://docs.ckan.org/en/latest/api/
- type: Plans
  url: plans/data-city-yokohama-lg-jp-plans-pricing.yml
- type: RateLimits
  url: rate-limits/data-city-yokohama-lg-jp-rate-limits.yml
- type: FinOps
  url: finops/data-city-yokohama-lg-jp-finops.yml
- type: Review
  url: review.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Yokohama City Open Data

Kin Score

APIs 1

Yokohama City Open Data CKAN Action API

Pricing Plans 1

Data City Yokohama Lg Jp Plans Pricing