🇯🇵Blockchain, Crypto & Web3 in Japan
6 blockchain, crypto & web3 providers in Japan, publishing 29 APIs.
Blockchain, Crypto & Web3 in Japan — 6 providers on the APIs.io network sit in both cohorts, and between them they publish 29 indexed APIs.
4 of the 6 publish at least one machine-readable API; 2 publish nothing indexed at all. That split is the first thing worth reading here — a vertical can be well represented in a market and still have almost no programmable surface.
By Kin Score band: 4 emerging, 1 strong, and 1 minimal.
Leading by rating: PAY.JP, bitbank, bitFlyer, Coincheck, Aerial Partners, and Taiyaki Studios.
Country membership reads a tag, a stated headquarters or a stated nationality. A provider lands in Japan when one of its own top-level tags names the country, when its own description states a headquarters that names the country or one of its cities, or when it describes itself by nationality (“a French company”; roadmap#542, #719). Region words (“Latin American”), language uses (“French-speaking”) and a city named outside a headquarters statement are not counted, so this cell is a floor, not a census.
Providers (6)
| Provider | Description | APIs | Rating |
|---|---|---|---|
| PAY.JP | PAY.JP is an online payment service operated by PAY, Inc. (PAY株式会社) in Japan. Its Stripe-style REST API lets merchants create charges, tokenize cards, manage customers, run subs... | 14 | strong |
| bitbank | Bitbank is a Japanese cryptocurrency exchange offering spot, margin, lending, staking, and API trading services. It provides a public API for market data and order execution, ta... | 7 | emerging |
| bitFlyer | bitFlyer is a Japanese cryptocurrency exchange. Its bitFlyer Lightning trading platform exposes a public and private HTTP API at api.bitflyer.com for market data, account assets... | 6 | emerging |
| Coincheck | Coincheck is a Japanese cryptocurrency exchange. It documents a REST Exchange API (public market data plus HMAC-signed private trading, account, deposit and withdrawal endpoints... | 2 | emerging |
| Aerial Partners | Aerial Partners (株式会社Aerial Partners, Roppongi, Minato-ku, Tokyo) builds digital-asset accounting, tax and data-management software for the Japanese market. Its current product ... | 0 | emerging |
| Taiyaki Studios | Taiyaki Studios is a Tokyo-based startup working to redefine how anime is consumed, delivering stories that are immediate, engaging, and satisfying. Surfaced as a portfolio comp... | 0 | minimal |
Indexed API documents (29)
Two numbers, both real: these providers publish 29 APIs as their own documents, which the catalog indexes split one-per-resource into 29 documents.
PAY.JP 3D Secure API
PAY.JP Account API
PAY.JP Balances API
PAY.JP Cards API
PAY.JP Charges API
PAY.JP Customers API
PAY.JP Events API
PAY.JP Plans API
PAY.JP Platform API
PAY.JP Statements API
PAY.JP Subscriptions API
PAY.JP Terms API
PAY.JP Tokens API
PAY.JP Transfers API
bitbank Applications API
bitbank Bitbank API
bitbank Copilot Install API
bitbank Octocat API
bitbank Organizations API
bitbank Orgs API
bitbank Path API
bitFlyer Account API
bitFlyer Assets API
bitFlyer Chat API
bitFlyer Deposits and Withdrawals API
bitFlyer Markets API
bitFlyer Trading API
Coincheck Private API
Coincheck Public API
Other industries in Japan
Blockchain, Crypto & Web3 elsewhere
This page is the intersection of two independently computed cohorts:
Japan and
Blockchain, Crypto & Web3. A provider appears here only when it is
already a member of both. Japan membership is matched on tag, stated HQ,
so this is a floor rather than a census — coverage gaps show up here as small numbers, not as absent pages.
Work with this as data
Every country here is available over the APIs.io API and to AI agents over MCP. Countries is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.