# Stellagent

> AI commerce infrastructure company building data hubs and transaction platforms for the AI era.

Last updated: 2026-10-08

Stellagent, Inc. develops the data connectivity and transaction infrastructure that powers AI-driven commerce. We enable merchants, payment service providers, and e-commerce platforms to become AI-ready.

## Products

- [AI検索ドック (AI Search Dock)](https://stellagent.ai/ja/ai-search-dock): Japanese-language diagnostic service that asks ChatGPT, Gemini and Microsoft Copilot the questions your customers are likely to ask (30 questions, 10 times each per AI — 900 answers), then reports how often your company and competitors appear in the answers, which pages were cited, and a prioritized list of fixes. JPY 300,000 (excl. tax) per product, service or brand; delivery in about 10 business days.
- [Stella Storefront](https://stellagent.ai/stella-storefront): Opens a merchant's store inside ChatGPT conversations. We build the product catalog as an MCP server and connect it as a ChatGPT plugin and a Claude connector. Flat JPY 100,000 one-time onboarding to get products into AI (checkout inside AI is quoted separately). [Japanese version](https://stellagent.ai/ja/stella-storefront).
- [Agentic Commerce Studio](https://stellagent.ai/agentic-commerce-studio): Browser-based environment for experiencing and validating AI agent shopping flows, from product discovery and inventory checks to checkout and payment preparation.

## Company

- Founded: February 2022
- CEO: Akihiro Suzuki
- Location: Yokohama, Japan
- Website: https://stellagent.ai

## Pages

- [Home](https://stellagent.ai/)
- [AI検索ドック (AI Search Dock)](https://stellagent.ai/ja/ai-search-dock): AI answer visibility diagnostic (Japanese only).
- [AI検索ドック service overview](https://stellagent.ai/ja/ai-search-dock/about): One-page plain-text summary — provider (ステラジェント株式会社 / Stellagent, Inc.), what it does, AIs covered, price, delivery time, deliverables and FAQ (Japanese only).
- [AI検索ドック free diagnosis](https://stellagent.ai/ja/ai-search-dock/free-diagnosis): Free trial — one question, asked of ChatGPT and Gemini 10 times each (Copilot is paused for now; Japanese only).
- [AI検索ドック blog](https://stellagent.ai/ja/ai-search-dock/blog): Japanese articles on AI search optimization (AIO, GEO, LLMO), built on our own measurements.
- [Stella Storefront](https://stellagent.ai/stella-storefront): AI storefront inside ChatGPT and Claude.
- [Agentic Commerce Studio](https://stellagent.ai/agentic-commerce-studio)
- [News](https://stellagent.ai/news)
- [Research](https://stellagent.ai/research): Original research reports on the AI-readiness of booking and commerce sites across industries (hospitality, transportation, e-commerce).
- [Insights](https://stellagent.ai/insights): Analysis of agentic commerce — protocols, payments, and retail cases.
- [Company](https://stellagent.ai/company)
- [Contact](https://stellagent.ai/contact)
- [Privacy Policy](https://stellagent.ai/privacy)

## AI search optimization guides (AIO / GEO / LLMO)

Japanese articles on the AI検索ドック blog. They replace our earlier LLMO and GEO insights (2026-10). Prices and vendor details were checked on official pages on the date stated in each article.

- [AI search optimization: the complete guide](https://stellagent.ai/ja/ai-search-dock/blog/ai-search-optimization): The hub. How the three labels relate, the six steps, vendors and tools, typical costs, in-house vs. outsourced work, and how to measure results and ROI.
- [AIO](https://stellagent.ai/ja/ai-search-dock/blog/aio): The full method with examples — how AI searches, reads and answers, and the six steps.
- [GEO](https://stellagent.ai/ja/ai-search-dock/blog/geo): What companies overseas actually do, with 2026 research.
- [LLMO](https://stellagent.ai/ja/ai-search-dock/blog/llmo): What models learn about a company in training, knowledge cutoffs, and training vs. search bots.
- [Google AI Overviews and AI Mode](https://stellagent.ai/ja/ai-search-dock/blog/ai-overviews): When they appear, what to do on the site, and how to check.
- [AI search consultancies compared](https://stellagent.ai/ja/ai-search-dock/blog/llmo-companies): 27 Japanese vendors by type, price and minimum contract, each with a detailed profile and how often it appears in AI answers.
- [AI search diagnostics compared](https://stellagent.ai/ja/ai-search-dock/blog/llmo-diagnosis): 24 paid and free diagnostic services by type (site audit vs. collecting AI answers), price and deliverables.
- [AI search measurement tools compared](https://stellagent.ai/ja/ai-search-dock/blog/llmo-tools): 16 tools by price and how many times each question is asked.
- [Costs](https://stellagent.ai/ja/ai-search-dock/blog/ai-search-cost): Medians from 95 published prices, and the main services' prices.
- [In-house or outsource](https://stellagent.ai/ja/ai-search-dock/blog/outsource-or-diy): Which tasks to keep in-house and which to hand out.
- [Measuring results](https://stellagent.ai/ja/ai-search-dock/blog/llmo-effect): Three stages (AI answers, visits, outcomes), how many answers are needed, and ROI.
- [Seeing AI traffic in GA4](https://stellagent.ai/ja/ai-search-dock/blog/ga4-ai-traffic): How AI referrals are classified, checked against our own GA4 data.
- [AEO](https://stellagent.ai/ja/ai-search-dock/blog/aeo): What answer engine optimization means, how it differs from SEO, which pages AI answers are built from, and six steps.
- [AI search not working?](https://stellagent.ai/ja/ai-search-dock/blog/ai-search-no-results): Five things to check, in order, when AIO / LLMO work shows no results — measurement, time, being searched, the cited pages, and third-party sites.
- [Query fan-out](https://stellagent.ai/ja/ai-search-dock/blog/query-fan-out): How AI splits one question into several searches, with 688 real search queries from ChatGPT and the Gemini API.
- [AI search citations](https://stellagent.ai/ja/ai-search-dock/blog/ai-citation): Which kinds of pages ChatGPT, Gemini, Copilot and AI Overviews cite, what cited pages have in common, and how to check citations yourself.
- [Not mentioned by AI](https://stellagent.ai/ja/ai-search-dock/blog/ai-not-mentioned): Why a company does not appear in ChatGPT or Gemini answers — whether it fails at searching, reading or answering — and how to check, using our own case (4 of 900 answers).
- [Wrong information in AI answers](https://stellagent.ai/ja/ai-search-dock/blog/ai-wrong-information): Three causes, how to find which page an error comes from, and how to fix it on your site and on third-party pages.
- [llms.txt](https://stellagent.ai/ja/ai-search-dock/blog/llms-txt): What llms.txt is, which AI services say they use it, how often AI bots requested ours, and what structured data does for AI search.
- [ChatGPT, Gemini and Copilot compared](https://stellagent.ai/ja/ai-search-dock/blog/chatgpt-gemini-copilot): Where each AI searches, which sites each cites and which companies each names, compared across 900 answers.
- [Checking AI Overviews](https://stellagent.ai/ja/ai-search-dock/blog/ai-overviews-check): How to check whether your company appears in Google AI Overviews — by hand, in Search Console and GA4, and by repeated measurement (an overview appeared in 87 of 89 searches in our test).
- [Google AI Mode](https://stellagent.ai/ja/ai-search-dock/blog/google-ai-mode): What AI Mode is, how it differs from AI Overviews, how it runs several searches behind one question, and how company sites are cited and counted in Search Console.
- [AIO checklist](https://stellagent.ai/ja/ai-search-dock/blog/aio-checklist): What to check at each of the six steps, and what not to do (hidden text, mass-generated pages, self-written reviews).
- [AI misinformation monitoring services compared](https://stellagent.ai/ja/ai-search-dock/blog/ai-misinformation-monitoring): Seven services that check what AI says about a company, compared by detection scope, number of AIs and repeats, source tracing, correction support and pricing.
- [AI confusing your company with another](https://stellagent.ai/ja/ai-search-dock/blog/ai-company-confusion): Similar names, former names, product vs. company names, readings and spellings — how to tell which case it is and how to fix each.
- [Outdated information after changes](https://stellagent.ai/ja/ai-search-dock/blog/ai-outdated-info-checklist): Checklists for price changes, service closures, renames, relocations and CEO changes, before, on and after the day of the change.
- [Outdated hiring information in AI answers](https://stellagent.ai/ja/ai-search-dock/blog/ai-recruiting-info): Which pages AI reads for new-graduate and mid-career hiring questions (careers sites, job boards, agencies, reviews) and how to keep them current.
- [Reporting AI Overviews errors](https://stellagent.ai/ja/ai-search-dock/blog/ai-overviews-wrong): How to report an AI Overviews error about your company, what reporting does and does not change, and how to fix the cited pages.
- [Unfair ChatGPT comparisons](https://stellagent.ai/ja/ai-search-dock/blog/chatgpt-comparison-unfair): Where comparison answers come from (about 70% of Gemini citations were comparison articles), what a company can fix and what it cannot.
- [Where ChatGPT and Gemini get current information](https://stellagent.ai/ja/ai-search-dock/blog/ai-latest-info-sources): Knowledge cutoffs vs. web search, whether press releases, social media and YouTube reach answers, and how cited sources differ by market.
- [How often AI gets things wrong](https://stellagent.ai/ja/ai-search-dock/blog/ai-accuracy): Why AI "lies" (hallucination), published error rates, and our test of company information across five AIs (60.0% correct).

## Optional

- [llms-full.txt](https://stellagent.ai/llms-full.txt): Detailed company and product information