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) is listed with 8 APIs on the APIs.io network. Tagged areas include Finance, 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.

🌐 Visit website 📡 Profile data on GitHub

53.2/100 developing ▬ flat Agent 15/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

8 APIs 1 MCP Servers 1 Agent Skills

Finance Market Data Stocks Exchange Trading Derivatives Indices Reference Data Japan

Kin Score

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

Composite quality — 53.2/100 · developing

Contract Quality 0.0 / 21

Developer Ergonomics 13.4 / 17

Access Clarity 14.3 / 17

Operational Transparency 8.1 / 11

Contract Governance 1.9 / 10

Discoverability 6.5 / 9

Regulatory Posture 4.3 / 15

Agent readiness — 15/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 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

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

8 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Contract Governance scores 18.2 — up to +9.8 composite points
Developer Ergonomics scores 78.6 — up to +4.3 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/jpx/apis.yml: open an issue on github.com/api-evangelist/jpx 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Capital Markets and Trading	covered	34.5 (thin)	-	-
Japan FSA Registered Fintech (crypto exchanges, stablecoin intermediaries, funds transfer, bank-API agents, prepaid)	covered	34.5 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

Agent Skills

measured — observed by APIs.io (published)

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 (Japan Exchange Group) MCP Server

Local (stdio) MCP server; 7 tools listed.

MCP SERVER

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

jquants-cli-usage

AGENT SKILL

JPX (Japan Exchange Group) API pricing

Prices published by JPX (Japan Exchange Group), read 2026-10-28 from jpx-jquants.com/en#pricing.

Plan	Price
Free plan	¥0 Includes: 2 years History [12 weeks delayed]; Listed Issue Master; Stock Prices (OHLC); Financial Data (Summar
Light plan	¥1,650 Includes: 5 years History; Listed Issue Master; Stock Prices (OHLC); Financial Data (Summary only); TOPIX Pric
Standard plan	¥3,300 Includes: 10 years History; Indices Data (including TOPIX); Margin Trading Data; Index Option Prices (OHLC)
Premium plan	¥16,500 Includes: All periods offered (up to 20 years); Futures & Options Prices (OHLC); Cash Dividend Data; Breakdown
Add-on: Stock Prices (minute-OHLC, Tick) (2 years)	¥5,500/month Includes: Available on Light, Standard, Premium
Add-on: TDnet/Company Disclosure (5 years)	¥11,000/month Includes: Available on Light, Standard, Premium

Plan details, limits and sources →

Rate limits

Free plan: 5 requests per minute
Light plan: 60 requests per minute
Standard plan: 120 requests per minute

All 8 limits →

Billed by: add-on · FinOps profile →

Pricing Plans 1

Published pricing tiers and plan structures.

Jpx Plans

6 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Jpx Rate Limits

8 limits

RATE LIMITS

FinOps 1

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

Jpx Finops

FINOPS

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

GettingStarted

GettingStarted

Portal

Portal

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

AgentSkill

AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Conformance

Lifecycle

Build 4

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

CLI

CLI

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 6

Status, limits, changes, and where to get help

StatusPage

Deprecation

ChangeLog

ReleaseNotes

RateLimits

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Source (apis.yml)

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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/jpx.png
tags:
- Finance
- Market Data
- Stocks
- Exchange
- Trading
- Derivatives
- Indices
- Reference Data
- Japan
tags_raw:
- Financial
- Market Data
- Stocks
- Exchange
- Trading
- Derivatives
- Indices
- Reference Data
- Japan
created: '2026-07-21'
modified: '2026-07-22'
specificationVersion: '0.23'
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
  - File
  tags_raw:
  - 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

JPX (Japan Exchange Group) API — frequently asked questions

Does JPX (Japan Exchange Group) have an API?

Yes. APIs.io lists 8 APIs from JPX (Japan Exchange Group), including J-Quants Equities API, J-Quants Markets API and J-Quants Indices API, and 5 more.

How do I authenticate with the JPX (Japan Exchange Group) API?

JPX (Japan Exchange Group) uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Jpx Authentication.

How much does the JPX (Japan Exchange Group) API cost?

JPX (Japan Exchange Group) publishes its prices; its Free plan plan is ¥0 as of 2026-10-28. APIs.io lists 6 pricing plans for JPX (Japan Exchange Group), with each plan's price, limits and inclusions under Pricing on this page.

Does JPX (Japan Exchange Group) have an MCP server?

Yes. APIs.io lists 1 MCP server for JPX (Japan Exchange Group): Local (stdio) MCP server; 7 tools listed.

Is the JPX (Japan Exchange Group) API ready for AI agents?

JPX (Japan Exchange Group) has a Kin Score of 53.2 out of 100 (developing) and an Agent Readiness score of 15.0 (agent-aware), scored by API Evangelist on 2026-11-06.

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