Japan × Developer Tools & DevOps

🇯🇵Developer Tools & DevOps in Japan

10 developer tools & devops providers in Japan, publishing 29 APIs.

10 providers 29 published APIs 29 indexed documents

Developer Tools & DevOps in Japan — 10 providers on the APIs.io network sit in both cohorts, and between them they publish 29 indexed APIs.

7 of the 10 publish at least one machine-readable API; 3 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: 5 minimal, 3 thin, 1 strong, and 1 developing.

Leading by rating: 3-shake, Alphaus, HaneruTo, EmbodyMe, Infostellar, Playco, and 4 more.

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 (10)

Provider Description APIs Rating
3-shake 3-shake, Inc. (株式会社スリーシェイク) is a Tokyo-based cloud and reliability engineering company, founded in 2015, that operates four product lines. Sreake is its SRE / platform-engineeri... 6 strong
Alphaus Alphaus is a Tokyo-based cloud FinOps company (No. 1 in Japan) whose platform helps enterprises, managed service providers, and cloud resellers manage and optimize multi-cloud s... 15 developing
HaneruTo HaneruTo — trading as hakuto, brand B612 SHEEP — is a Japanese one-person, AI-assisted web and systems development studio founded in 2025 that also ships b612, a Japanese-market... 2 thin
EmbodyMe EmbodyMe, Inc. is a Tokyo-based AI company building real-time neural rendering and 3D dense face-tracking technology for photorealistic digital humans. Its flagship developer pr... 1 thin
Infostellar Infostellar is a Tokyo-based space infrastructure company that operates StellarStation, a cloud ground-station-as-a-service (GSaaS) platform. It aggregates partner and operator ... 1 thin
Playco Playco is an instant-play gaming company founded in 2020 by Justin Waldron, Michael Carter, Takeshi Otsuka and Teddy Cross, headquartered in Tokyo with teams worldwide. It build... 0 minimal
Rakuten Mobile Rakuten Mobile is the Japanese mobile network operator (MNO) of Rakuten Group, headquartered in Setagaya, Tokyo, and Japan's fourth nationwide carrier alongside NTT Docomo, KDDI... 3 minimal
Sakana AI Sakana AI is a Tokyo-based AI R&D company founded by ex-Google researchers focused on collective intelligence, evolutionary optimization, and nature-inspired AI methods. The com... 1 minimal
Arsagapartners Arsagapartners, operating as アルサーガパートナーズ株式会社, is a Japan‑based consulting and technology firm delivering end‑to‑end digital transformation (DX) solutions. It offers consulting, ... 0 minimal
KDDI KDDI Corporation is a Japanese multinational telecommunications operator headquartered in Tokyo, providing mobile, fixed-line, broadband, and enterprise ICT services. KDDI marke... 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.

Securify Scan Public API

3-shake
Public API for Securify Scan, 3-shake's automated vulnerability-diagnosis and ASM platform. A tenant creates a public API token in the co...

3-shake Accounts API

3-shake
The Accounts API from 3-shake — 1 operation(s) for accounts.

3-shake Auth API

3-shake
The Auth API from 3-shake — 1 operation(s) for auth.

3-shake Integrations API

3-shake
The Integrations API from 3-shake — 2 operation(s) for integrations.

3-shake Projects API

3-shake
The Projects API from 3-shake — 3 operation(s) for projects.

3-shake Workflows API

3-shake
The Workflows API from 3-shake — 8 operation(s) for workflows.

Alphaus Admin API

Alphaus
Admin API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Billing API

Alphaus
(BETA) Billing API. Base URL: https://api.alphaus.cloud/m/blue/billing

Alphaus Cost API

Alphaus
Cost API. Base URL: https://api.alphaus.cloud/m/blue/cost

Alphaus Cover API

Alphaus
(BETA) Cover API. Base URL: https://api.alphaus.cloud/m/blue/cover

Alphaus Flags API

Alphaus
(ALPHA) Flag API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Flow API

Alphaus
(ALPHA) Flow API. Base URL: https://api.alphaus.cloud/m/blue/flow

Alphaus GuaranteedCommitments API

Alphaus
(Alpha) GuaranteedCommitments API. Base URL: https://api.alphaus.cloud/m/blue/gc

Alphaus Iam API

Alphaus
(BETA) IAM API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Luster API

Alphaus
(ALPHA) Luster API. Base URL: https://api.alphaus.cloud/m/blue/luster

Alphaus Operations API

Alphaus
(BETA) Long operations API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Organization API

Alphaus
(BETA) Organization API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Preferences API

Alphaus
(BETA) Preferences API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Pricing API

Alphaus
(BETA) Pricing API. Base URL: https://api.alphaus.cloud/m/blue/pricing

Alphaus Prism API

Alphaus
(Alpha) Prism API. Base URL: https://api.alphaus.cloud/m/blue/prism

Alphaus Vortex API

Alphaus
(Alpha) Vortex API. Base URL: https://api.alphaus.cloud/m/blue/vortex

b612 MCP Server

HaneruTo
Remote Model Context Protocol server at https://mcp.hakuto-0209.com/mcp (Streamable HTTP, POST only — GET returns 406 — protocol version ...

b612 A2A Agent

HaneruTo
Agent2Agent (A2A) protocol surface: an agent card served from https://mcp.hakuto-0209.com/.well-known/agent-card.json (protocolVersion 0....

DigiSelf Realtime API

EmbodyMe
REST + WebSocket API for driving real-time photorealistic AI avatars. Create meeting bots that join Google Meet or LiveKit rooms and stre...

StellarStation API

Infostellar
Public gRPC API for the StellarStation ground-station-as-a-service platform. Lets satellite operators list upcoming available passes, res...

Rakuten CPaaS SMS / Messaging API

Rakuten Mobile
Carrier-grade SMS API for sending and receiving A2P and P2A SMS at scale on the Rakuten Mobile network, with delivery receipts pushed to ...

Rakuten CPaaS Confirm (OTP) API

Rakuten Mobile
One-time PIN delivery and verification API for two-factor authentication and transaction confirmation, with SMS and Voice channel support...

Rakuten CPaaS Short URL API

Rakuten Mobile
Link shortening and analytics API for CPaaS campaigns. Supports create / retrieve / update / list / delete operations on short URLs, with...

Sakana Fugu API (Beta)

Sakana AI
Multi-agent orchestration system that routes tasks across frontier foundation models (OpenAI, Anthropic, Google). OpenAI-compatible API s...

Other industries in Japan

Artificial Intelligence 32 Data & Analytics 15 Industrial 14 E-Commerce Platform 13 IoT & Connected Devices 13 Education & EdTech 12 Healthcare 12 Digital Health & Telehealth 11 Financial Technology 11 Payments & Money Movement 11 Semiconductors & Hardware 10 Telecommunications & Connectivity 10 All of Japan →

Developer Tools & DevOps elsewhere

North America 124 Europe 78 Greater China 28 DACH (Germany · Austria · Switzerland) 22 United Kingdom & Ireland 20 France & Iberia 16 Japan & Korea 15 India & South Asia 11 MENA (Middle East & North Africa) 10 Nordics 9 Australia & New Zealand 8 Middle East 8 All of Developer Tools & DevOps →

This page is the intersection of two independently computed cohorts: Japan and Developer Tools & DevOps. 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.

MCP server

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Tools for countries

3 MCP tools reach this
  • 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.
All 92 tools →

Call it yourself

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curl "https://apis.io/api/v1/search?q=japan-developer-tools&limit=10"
Everything under a tag 
curl "https://apis.io/api/v1/tags/japan-developer-tools"

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