JPX (Japan Exchange Group) website screenshot

JPX (Japan Exchange Group)

JPX (Japan Exchange Group) operates the Tokyo Stock Exchange, Osaka Exchange, and Tokyo Commodity Exchange, and sells Japanese market data through its JPX Market Innovation & Research arm. Its developer-facing product is the J-Quants API - a self-serve, subscription REST API (Free/Light/Standard/Premium plans, x-api-key auth, base https://api.jquants.com/v2) delivering historical equities OHLCV/minute/tick bars, indices, derivatives, financial statements, short-selling and margin data, EDINET filings, and TDnet disclosures, plus bulk CSV download, an MCP server, and a CLI - licensed to individual investors only. Institutional real-time data (FLEX Standard and FLEX MBO order-book feeds) and corporate historical data (J-Quants Pro via API/SFTP/Snowflake, J-Quants DataCube) are sales-gated services.

JPX (Japan Exchange Group) publishes 8 APIs on the APIs.io network. Tagged areas include Financial, Market Data, Stocks, Exchange, and Trading.

JPX (Japan Exchange Group)’s developer surface includes CLI, authentication, changelog, release notes, getting-started guide, API reference, developer portal, and 24 more developer resources.

51.7/100 developing ▬ flat Agent 40/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessFreemiumSelf serve⚡ Free to try
8 APIs 1 MCP Servers
FinancialMarket DataStocksExchangeTradingDerivativesIndicesReference DataJapan

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 51.7/100 · developing
Contract Quality 0.0 / 25
Developer Ergonomics 16.1 / 20
Commercial Clarity 15.3 / 20
Operational Transparency 9.9 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 40/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
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/jpx: 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 8

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

J-Quants Equities API

Listed issue master, daily and morning-session OHLCV, minute bars and tick trades (add-on), earnings calendar, and weekly trading by investor type for Tokyo Stock Exchange equit...

J-Quants Markets API

Market-structure datasets under /v2/markets/* - trading calendar, short sale position reports, short ratio by sector, weekly margin interest, daily margin alerts, and breakdown ...

J-Quants Indices API

Daily OHLC for TOPIX and other JPX indices under /v2/indices/* endpoints, with plan-gated access (TOPIX from Light, full index set from Standard).

J-Quants Financials API

Corporate financial data under /v2/fins/* - summary report figures (EPS, forecasts), detailed BS/PL/CF statements, and cash dividend data sourced from TDnet disclosures.

J-Quants Derivatives API

Daily OHLC for Osaka Exchange futures and options under /v2/derivatives/*, including Nikkei 225 options (Standard plan) and the full futures/options universe (Premium plan).

J-Quants EDINET Data API

Structured data extracted from EDINET regulatory filings under /v2/edinet/* - major shareholders, cross-shareholdings (policy holdings), and large volume holding reports.

J-Quants TDnet Disclosure API

Add-on access to TDnet timely-disclosure documents - a disclosure index (/td/list), document file retrieval (/td/files), and bulk CSV download (/td/bulk) covering five years of ...

J-Quants Bulk Download API

File-based delivery alongside the REST endpoints - list available bulk files (/bulk/list) and download gzipped CSV extracts (/bulk/get) for supported datasets.

Scroll for all 8

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

jpx-mcp.yml

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Jpx Plans

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Jpx Rate Limits

8 limits

RATE LIMITS

Security Posture 2

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

Jpx Authentication

apiKey · 1 scheme

SECURITY

Jpx Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Build 4

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 6

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: jpx
url: https://raw.githubusercontent.com/api-evangelist/jpx/refs/heads/main/apis.yml
name: JPX (Japan Exchange Group)
kind: company
description: JPX (Japan Exchange Group) operates the Tokyo Stock Exchange, Osaka Exchange, and Tokyo Commodity Exchange, and
  sells Japanese market data through its JPX Market Innovation & Research arm. Its developer-facing product is the J-Quants
  API - a self-serve, subscription REST API (Free/Light/Standard/Premium plans, x-api-key auth, base https://api.jquants.com/v2)
  delivering historical equities OHLCV/minute/tick bars, indices, derivatives, financial statements, short-selling and margin
  data, EDINET filings, and TDnet disclosures, plus bulk CSV download, an MCP server, and a CLI - licensed to individual investors
  only. Institutional real-time data (FLEX Standard and FLEX MBO order-book feeds) and corporate historical data (J-Quants
  Pro via API/SFTP/Snowflake, J-Quants DataCube) are sales-gated services.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/jpx.png
tags:
- Financial
- Market Data
- Stocks
- Exchange
- Trading
- Derivatives
- Indices
- Reference Data
- Japan
created: '2026-07-21'
modified: '2026-07-22'
specificationVersion: '0.19'
apis:
- aid: jpx:j-quants-equities-api
  name: J-Quants Equities API
  tags:
  - Stocks
  - OHLCV
  - Tick Data
  - Listed Issues
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://jpx-jquants.com/en/spec/eq-master
  baseURL: https://api.jquants.com/v2
  properties:
  - url: https://jpx-jquants.com/en/spec/eq-master
    type: Documentation
  - url: https://jpx-jquants.com/en/spec/eq-bars-daily
    type: APIReference
  description: Listed issue master, daily and morning-session OHLCV, minute bars and tick trades (add-on), earnings calendar,
    and weekly trading by investor type for Tokyo Stock Exchange equities, under /v2/equities/* endpoints.
- aid: jpx:j-quants-markets-api
  name: J-Quants Markets API
  tags:
  - Short Selling
  - Margin Trading
  - Trading Calendar
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://jpx-jquants.com/en/spec/mkt-cal
  baseURL: https://api.jquants.com/v2
  properties:
  - url: https://jpx-jquants.com/en/spec/mkt-cal
    type: Documentation
  - url: https://jpx-jquants.com/en/spec/mkt-short-sale
    type: APIReference
  description: Market-structure datasets under /v2/markets/* - trading calendar, short sale position reports, short ratio
    by sector, weekly margin interest, daily margin alerts, and breakdown trading data.
- aid: jpx:j-quants-indices-api
  name: J-Quants Indices API
  tags:
  - Indices
  - TOPIX
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://jpx-jquants.com/en/spec/idx-bars-daily
  baseURL: https://api.jquants.com/v2
  properties:
  - url: https://jpx-jquants.com/en/spec/idx-bars-daily
    type: Documentation
  - url: https://jpx-jquants.com/en/spec/idx-bars-daily-topix
    type: APIReference
  description: Daily OHLC for TOPIX and other JPX indices under /v2/indices/* endpoints, with plan-gated access (TOPIX from
    Light, full index set from Standard).
- aid: jpx:j-quants-financials-api
  name: J-Quants Financials API
  tags:
  - Financial Statements
  - Dividends
  - Fundamentals
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://jpx-jquants.com/en/spec/fin-summary
  baseURL: https://api.jquants.com/v2
  properties:
  - url: https://jpx-jquants.com/en/spec/fin-summary
    type: Documentation
  - url: https://jpx-jquants.com/en/spec/fin-details
    type: APIReference
  description: Corporate financial data under /v2/fins/* - summary report figures (EPS, forecasts), detailed BS/PL/CF statements,
    and cash dividend data sourced from TDnet disclosures.
- aid: jpx:j-quants-derivatives-api
  name: J-Quants Derivatives API
  tags:
  - Futures
  - Options
  - Derivatives
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://jpx-jquants.com/en/spec/drv-bars-daily-fut
  baseURL: https://api.jquants.com/v2
  properties:
  - url: https://jpx-jquants.com/en/spec/drv-bars-daily-fut
    type: Documentation
  - url: https://jpx-jquants.com/en/spec/drv-bars-daily-opt
    type: APIReference
  description: Daily OHLC for Osaka Exchange futures and options under /v2/derivatives/*, including Nikkei 225 options (Standard
    plan) and the full futures/options universe (Premium plan).
- aid: jpx:j-quants-edinet-api
  name: J-Quants EDINET Data API
  tags:
  - EDINET
  - Shareholders
  - Filings
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://jpx-jquants.com/en/spec/edinet-major-shareholders
  baseURL: https://api.jquants.com/v2
  properties:
  - url: https://jpx-jquants.com/en/spec/edinet-major-shareholders
    type: Documentation
  - url: https://jpx-jquants.com/en/spec/edinet-cross-shareholdings
    type: APIReference
  description: Structured data extracted from EDINET regulatory filings under /v2/edinet/* - major shareholders, cross-shareholdings
    (policy holdings), and large volume holding reports.
- aid: jpx:j-quants-tdnet-api
  name: J-Quants TDnet Disclosure API
  tags:
  - TDnet
  - Disclosures
  - Documents
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://jpx-jquants.com/en/spec/td-list
  baseURL: https://api.jquants.com/v2
  properties:
  - url: https://jpx-jquants.com/en/spec/td-list
    type: Documentation
  - url: https://jpx-jquants.com/en/spec/td-files
    type: APIReference
  description: Add-on access to TDnet timely-disclosure documents - a disclosure index (/td/list), document file retrieval
    (/td/files), and bulk CSV download (/td/bulk) covering five years of filings.
- aid: jpx:j-quants-bulk-download-api
  name: J-Quants Bulk Download API
  tags:
  - Bulk
  - CSV
  - Files
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://jpx-jquants.com/en/spec/bulk
  baseURL: https://api.jquants.com/v2
  properties:
  - url: https://jpx-jquants.com/en/spec/bulk
    type: Documentation
  - url: https://jpx-jquants.com/en/spec/bulk-list
    type: APIReference
  description: File-based delivery alongside the REST endpoints - list available bulk files (/bulk/list) and download gzipped
    CSV extracts (/bulk/get) for supported datasets.
common:
- type: DomainSecurity
  url: security/jpx-domain-security.yml
- type: LLMsTxt
  url: llms/jpx-llms.txt
- type: MCPServer
  url: mcp/jpx-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Packages
  url: packages/jpx-packages.yml
- type: SDKs
  url: packages/jpx-packages.yml
- type: CLI
  url: cli/jpx-cli.yml
- type: Authentication
  url: authentication/jpx-authentication.yml
- type: Conventions
  url: conventions/jpx-conventions.yml
- type: ErrorCatalog
  url: errors/jpx-problem-types.yml
- type: Conformance
  url: conformance/jpx-conformance.yml
- type: Lifecycle
  url: lifecycle/jpx-lifecycle.yml
- type: StatusPage
  url: https://jpx-jquants.com/en/help/incident
- type: Deprecation
  url: https://jpx-jquants.com/en/spec/migration-v1-v2
- type: ChangeLog
  url: changelog/jpx-changelog.yml
- type: ReleaseNotes
  url: https://jpx-jquants.com/en/spec/release
- type: RateLimits
  url: rate-limits/jpx-rate-limits.yml
- type: Plans
  url: plans/jpx-plans.yml
- type: GettingStarted
  url: https://jpx-jquants.com/en/spec/quickstart
- type: APIReference
  url: https://jpx-jquants.com/en/spec
- type: Website
  url: https://www.jpx.co.jp/english/
- type: Portal
  url: https://jpx-jquants.com/en
- type: Documentation
  url: https://jpx-jquants.com/en/spec
- type: GitHubOrganization
  url: https://github.com/J-Quants
- type: LinkedIn
  url: https://www.linkedin.com/company/japan-exchange-group
- type: Blog
  url: https://qiita.com/j_quants
- type: Pricing
  url: https://jpx-jquants.com/en#pricing
- type: SignUp
  url: https://jpx-jquants.com/en/register
- type: TermsOfService
  url: https://www.jpx.co.jp/english/term-of-use/index.html
- type: PrivacyPolicy
  url: https://www.jpx.co.jp/english/corporate/governance/security/personal-information/index.html
- type: Support
  url: https://jpx-jquants.com/en/help
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com