STAR'T

What STAR'T does

STAR-T (legal entity KOSTART Inc., 주식회사 코스타트) is a Seoul-based private company founded in 2020 by Park Jeong-geun (ain) that operates an AI Business Operating OS for solo founders and organizations adopting automation. The platform-plus-modules architecture connects five workflow stages: idea structuring, building/shipping, opportunity discovery (public tenders, grants, RFPs), growth automation, and operations improvement. Headcount is 12 (1 human founder + 11 autonomous AI agents handling daily briefs, research, bizdev, marketing, finance, tech, memory, CRM, scheduling, and archival operations), with the founder retaining final human-in-the-loop (HITL) decisions.

The core technology stack is a multi-model AI router combining GPT-5 (OpenAI), Claude Opus/Sonnet (Anthropic), and Gemini 2.5 (Google) with a local fallback (Gemma 3 4B via Ollama), orchestrated through a Stage → Router → MD Task architecture that enforces sequential gates (Decision Gate → MVP Scope Lock → Task/QA Gate). Domain verticals include TaxPro-KR (pgvector IVFFlat RAG with OpenAI text-embedding-3-small and an automated Korean law OPEN API pipeline), STAR-T INVEST (DART/ECOS API integration with ML prediction models), CareSync (multilingual care record structuring), XR Agent Builder (institutional content to XR), and AI Marketing Automation. An append-only decision ledger (decisions.jsonl, executions.jsonl, outcomes.jsonl, source_claims.jsonl) constrains all external publications to verified entries, and a posture analysis engine using MediaPipe supports the form8 lifestyle product.

The business model is a hybrid of subscription SaaS (AI MVP Builder, AI-Developer-KIT, BIDS, AI-MARKETING, TaxPro-KR, STAR-T INVEST, Builder Starter — monthly tiers from ₩9,900 to ₩190,000 KRW), unit-priced consulting (60-minute sessions at ₩150,000–200,000 KRW), VOD courses (₩190,000–290,000 KRW with 90-day access), digital reports (₩49,000–490,000 KRW), and outsourcing development services (41 projects delivered 2023–2025 worth ~₩212M KRW total). Customer segments span solo founders (primary), large enterprises and financial institutions (Shinhan Financial Group, IBK, KB Kookmin Bank, Hana Bank, Kakao, Kia), government and public institutions (FSC, MOHW, KISED), and universities/education platforms (FastCampus, Class101, Taling). Distribution channels include direct enterprise sales, a government startup accelerator (Modu Startup — STAR-T is a selected AI Solution Provider with 5 solutions registered), education platform resellers, and self-serve digital product pages. The company has no disclosed external funding and operates primarily within South Korea.

Name

STAR'T

Legal name

KOSTART Inc. (주식회사 코스타트)

Website

https://star-t.io

Company type

Private

Founded year

2020

Operating status

Operating

Short description

STAR-T (KOSTART Inc.) is a Seoul-based founder-led company that builds an AI Business Operating OS connecting idea structuring, development, opportunity discovery, marketing, and operations, and delivers AI safety-focused courses, consulting, and implementation for solo founders, enterprises, and government clients.

Ownership category

akta.pro rank

Product category

AI Business Operating System

NAICS

Software Publishers (51321), Computer Systems Design and Related Services (5415)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming Services (7371)

akta.pro primary industry

AI Application Enablement Platforms (Copilot/Agent Frameworks, SDKs) (HDAEANAJ)

akta.pro secondary industries

AI/ML Engineering & Model Development Services (BPAEAHAF), Data, Analytics & AI Consulting (BPAHAEAF), AI Observability, Monitoring & Evaluation Platforms (Drift, Quality, Safety) (HDAEANAF), Responsible AI, Security & Privacy Platforms (Safety, Guardrails, PII) (HDAEANAG)

Keywords

• AI business operating system
• AI consulting services
• Generative AI SaaS
• Fintech advisory services
• AI implementation services

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Technology or R&D, Infrastructure, Marketing or Sales, Personnel, Operations

Revenue model

1. Subscription Products (SaaS): Recurring monthly subscriptions for AI software products including AI MVP Builder (Free/Starter 9,900 KRW/Pro 29,900 KRW per month), AI-Developer-KIT (149,000 KRW per month for Full), BIDS (99,000 KRW/month after demo), AI-MARKETING (190,000 KRW/month), TaxPro-KR (99,000 KRW/month after basic trial), and STAR-T INVEST (Starter 19,000 KRW/month, Pro 49,000 KRW/month, Expert 99,000 KRW/month). Also Builder Starter at 49,000 KRW/month. STAR-T INVEST subscription products are monthly from payment date.
2. 1:1 Consulting Sessions: 60-minute online consulting sessions sold at fixed one-time prices: AI Ops Structure 150,000 KRW, Startup/IR Strategy 180,000 KRW, Fintech/Open Banking Advisory 200,000 KRW. Scheduled within 7 days after payment.
3. VOD Courses: Video-on-demand courses with 90-day viewing access: Generative AI Service Planning at 290,000 KRW and IT/Fintech Service Planning Basics at 190,000 KRW. Access link issued immediately after payment.
4. Digital Reports: One-time digital report products: AI Readiness Check Report at 49,000 KRW (delivered within 3 business days) and Business Plan/IR Feedback Report at 99,000 KRW (delivered within 5 business days). Two-Week AI Pilot Scope Pack at 490,000 KRW (delivered within 10 business days).
5. VOD Course - IT/Fintech Service Planning Basics: Entry course built on 15 years of IT/fintech planning experience covering customer problem framing, feature prioritization, and screen flow fundamentals. Priced at 190,000 KRW with 90-day viewing access after payment.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

STAR-T (KOSTART Inc.) sells a portfolio of AI software products (AI MVP Builder, AI Marketing Automation, BIDS, TaxPro-KR, AI-Developer-KIT, Ko-START, IssueWatch, STAR-T INVEST, Auto Blog, XR Agent Builder, CareSync) that form an AI Business Operating OS connecting idea structuring, building, opportunity discovery, marketing, and operations. It monetizes these products via monthly SaaS subscriptions and one-time purchases, and sells adjacent courses (VOD), 1:1 consulting sessions, digital diagnostic reports, and outsourced AI/web/mobile/cloud development services to enterprises, financial institutions, government agencies, universities, and solo founders.

Product overview

STAR-T is an AI Business Operating OS for solo founders — a platform-plus-modules architecture connecting idea structuring, building, opportunity discovery, marketing, and operations through a unified decision-making framework. The L1 AI Business Operating OS (core platform) integrates 5 Modu Startup products: AI MVP Builder (ideas to business structure), AI-Developer-KIT (dev ops, QA, deploy), BIDS (public tender/RFP opportunity discovery), AI-MARKETING (content and campaign automation), and TaxPro-KR (Korean tax RAG). Surrounding these are live vertical AI products: Ko-START (multilingual foreigner settlement), IssueWatch (political pledge monitoring), be-yond (event staffing), STAR-T INVEST (investment research), Auto Blog (SEO content), AI-SYSTEM Operating OS (operational workflow), plus CareSync and XR Agent Builder (both in pilot). The portfolio also includes courses (service planning, AI business integration, local business growth), consulting (AI ops structure, fintech advisory, startup/IR strategy), and outsourcing development services (AI/GPT structure, web, mobile, cloud automation).

Differentiator

Problem solved

Functional benefit

Products and services

• AI MVP Builder SaaS product that turns a one-line idea into Lean Canvas, PRD, landing page, and PSST (Problem, Solution, Story, Traction) drafts for solo founders and early-stage startups. Available with Free, Starter (9,900 KRW/month), and Pro (29,900 KRW/month) tiers.
• AI Marketing Automation System SaaS product bundling trend collection, blog posts, card-news, social media, slide drafts, translation, and approval flow into a single marketing operations loop for 1-person teams and small businesses. Priced at 190,000 KRW/month with consultation-based demo.
• AI Bid / Support Opportunity Recommendation (BIDS) SaaS product that surfaces Korean government programs, R&D grants, and tech-transfer calls and narrows them with a FIT score against company capabilities before reading. Priced at 99,000 KRW/month after demo/trial.
• TaxPro-KR RAG-based SaaS product that organizes Korean tax laws, rulings, tribunal cases, and precedents into a searchable knowledge base for tax professionals and founders. Uses pgvector + OpenAI text-embedding-3-small + automated Korean law OPEN API collection pipeline. Priced at 99,000 KRW/month after basic trial.
• AI-SYSTEM Operating OS (AI-Developer-KIT) Development and operations framework that connects idea structuring, MVP execution, QA, deploy verification, and decision logs. Distributed as AI-Developer-KIT on Modu Startup with Lite (free), Builder Starter (49,000 KRW/month), and Full Pack (149,000 KRW one-time) tiers. Includes 98 agents, 16 commands, and 5 QA automation chains.
• Ko-START SaaS product that helps foreigners settle in Korea with 8-language AI guidance and community features. Visa and legal matters require expert confirmation.
• IssueWatch SaaS product that summarizes political pledges and policies into source-based briefs. Limited to factual summarization — does not predict support or election outcomes.
• be-yond Marketplace-style matching product that connects event organizers with day-rate staff. Contracts and settlements are handled directly between parties.
• Auto Blog SaaS product that supports stable operation of SEO content for search acquisition by automating content production and publishing workflows.
• STAR-T INVEST Public investment research platform that reinterprets news, disclosures, flows, and financials around user holdings via DART and ECOS data integration. No buy/sell recommendations — investment decisions remain with the investor. Three tiers: Starter (19,000 KRW/month), Pro (49,000 KRW/month), Expert (99,000 KRW/month).
• XR Agent Builder SaaS product that converts institutional materials (documents, location info, lecture content, photos) into web-based XR experiences with operating reports. Currently in pilot-consultation stage.
• CareSync SaaS product that turns brief field notes into structured multilingual care records shared with institutions and families. Currently in pilot preparation with fictional, de-identified demo scenarios only.
• AI Readiness Check Report One-time digital report mapping AI applicability to workflow, with top 3 priorities, risk points, and a two-week action plan. Priced at 49,000 KRW; PDF delivered within 3 business days.
• Business Plan / IR Feedback Report One-time reviewer-perspective critique of business plan or IR deck with concrete fixes for problem framing, market, feasibility, and metrics. Priced at 99,000 KRW; delivered within 5 business days.
• Two-Week AI Pilot Scope Pack Digital service that designs the AI pilot scope, data inputs, review criteria, and operating checklist in ready-to-run documents. Priced at 490,000 KRW; delivered within 10 business days.
• AI Ops Structure 1:1 Consulting (60 min) 60-minute online consulting session that maps repetitive work, human approval points, and stop conditions to lock automation scope. Priced at 150,000 KRW; scheduled within 7 days after payment.
• Fintech / Open Banking 1:1 Advisory (60 min) 60-minute advisory grounded in real Open Banking, MyData, and bank-partnership experience, covering fintech product planning and partnership entry. Priced at 200,000 KRW.
• Startup / IR Strategy 1:1 Consulting (60 min) 60-minute consulting session shaping business model, problem framing, and IR storyline grounded in grant-selection and fundraising experience. Priced at 180,000 KRW.
• Generative AI Service Planning (VOD Course) Hands-on video-on-demand course that turns ideas into generative-AI service plans (problem → features → validation). Priced at 290,000 KRW with 90-day viewing access.
• IT / Fintech Service Planning Basics (VOD Course)

Quantifiable outcome

• 116 lecture and consulting runs accumulated 2020–2025
• +7 more outcomes

Named customers18 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

AI capability14 records

Feature6 records

Partnerships

Eight partnerships are on record, tiered flagship, core and minor.

• Modu Startup (Korea Startup Network)flagshipStrategic or Co-development Partner · 1 January 2025STAR-T is a selected AI Solution Provider on Modu Startup (organization id: 832), Korea's government startup accelerator. Five STAR-T solutions (AI MVP Builder, AI-Developer-KIT, BIDS, AI-MARKETING, TaxPro-KR) are registered on the official AI solutions page for general/technical track selectees. This is a flagship channel partnership driving high-intent startup customers.
• Chungbuk Eumseong County Government (충북 음성군)coreStrategic or Co-development Partner · 1 January 2025Chungbuk Eumseong County Government B2G Proof of Concept (PoC) in progress as of 2025–2026. STAR-T is providing AI-based solutions or consulting services to the local government for public service innovation.
• Busan Global Fintech Hub (부산 글로벌핀테크)coreStrategic or Co-development Partner · 1 January 2025Busan Global Fintech PoC in progress as of 2025–2026. Collaboration with the Busan fintech ecosystem to deliver AI-based fintech solutions or consulting services.
• Shinhan Financial GroupcoreStrategic or Co-development Partner · 1 January 2021Shinhan Financial Group has collaborated with STAR-T for 4 consecutive years (2020–2025) on multiple programs including AI-based new business/service planning lectures, DT workshops, and internal training for employees. This is STAR-T's most established enterprise relationship, spanning multiple years and program types.
• GLG (Gerson Lehrman Group)minorImplementation/ SI/ Consulting Partner · 1 January 2021Founder Park Jeong-geun (ain) serves as an APP/Fintech advisory consultant on GLG's expert network since November 2022. GLG connects companies with specialized consultants for strategic advice.
• Korean Universities (Multiple)coreStrategic or Co-development PartnerPartnerships with 9+ universities including Sogang (MOT AI track), Pusan National University (Fintech Academy), Catholic University (multiple programs), Sejong University, Dong-A University, Kangwon National University, Chonnam National University, and Kyungpook National University for AI/service planning lectures, workshops, and hackathons. Also includes GLG.
• Education Platforms (FastCampus, Class101, Taling)coreChannel Partner/ Reseller/ DistributorSTAR-T courses distributed through FastCampus, Class101, Taling, Mike Impact (마이크임팩트), and OZ Coding School. These platforms resell/distribute STAR-T's course content to their learner bases, acting as channel partners for education services.
• KIST (Korea Institute of Science and Technology)minorStrategic or Co-development PartnerKIST collaboration on XR track combined with Incheon Open Port reference for XR Agent Builder. KIST provides institutional XR expertise and STAR-T provides AI-XR experience structuring.

Scale indicators12 records

Recent moves6 records

Expansion highlights6 records

Regional players

• Toss (비바리퍼블리카): Toss built an AI-embedded super-app for Korean consumers and SMEs. While Toss is primarily fintech, its operating-system-for-Korean-individuals thesis and Korean-market focus make it a relevant regional comparable to STAR-T's L1 AI Business Operating OS targeting Korean founders.

Broad incumbents

• Zapier: Zapier is the established leader in workflow automation and now AI orchestration. It is a broad incumbent in the same operational automation category STAR-T targets with AI-Developer-KIT and the AI Business Operating OS, though Zapier operates globally and at much larger scale.
• Replit: Replit's AI-powered build platform (Replit Agent) targets solo developers and non-technical founders who want to ship products — the same core wedge STAR-T addresses with AI MVP Builder and AI-Developer-KIT, though at much larger scale and broader international footprint.
• Notion: Notion + Notion AI serves solo founders and small teams as a unified operating surface for ideas, docs, projects, and now AI workflows — comparable to STAR-T's positioning as a unified AI Business OS, though Notion is much broader and globally established.

Direct peers

• Jasper AI: Jasper provides AI marketing automation for content, campaigns, and brand voice — directly comparable to STAR-T's AI Marketing Automation System, which bundles trend collection, card-news, blog, and SNS into a single marketing ops loop for 1-person teams.
• Copy.ai: Copy.ai builds AI workflow automation for marketing and sales teams. Its GTM-focused workflow automation overlaps with STAR-T's AI Marketing Automation System and AI-Marketing subscription product, both targeting SMB/solo marketers.
• Lindy.ai: Lindy builds AI agents that automate business workflows for individuals and small teams — a direct functional analog to STAR-T's AI Business Operating OS and 11-agent framework, both targeting solo operators who need to run end-to-end workflows autonomously.
• Make (formerly Integromat): Make is a visual AI-enabled workflow automation platform for business operations — comparable to STAR-T's AI-SYSTEM Operating OS and AI-Developer-KIT, which both aim to lock scope, attach QA checklists, and bind operational/dev workflows into automated chains.
• Channel.io (채널톡): Channel.io is a Korean AI-powered customer engagement and workflow platform serving Korean SMEs and D2C brands — directly comparable to STAR-T in market (Korea), customer base (Korean SMBs), and AI-automation-of-business-operations thesis.

Emerging players

• Lovable: Lovable is an AI app builder that turns prompts into deployed applications — directly comparable to STAR-T's AI MVP Builder (which turns a one-line idea into Lean Canvas, PRD, landing page, and PSST drafts) and its broader solo-founder commercialization thesis.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about STAR'T