Puente Officially Launches Puente MCP Hub, a SaaS Platform Connecting Japanese Public APIs to MCP

Puente Inc. announced the official launch of Puente MCP Hub on April 8, 2026. The service is a SaaS platform that provides Japanese public APIs in a format compatible with Anthropic’s Model Context Protocol (MCP). Puente MCP Hub wraps major Japanese public APIs as MCP servers, making them easier to use from AI applications and large language models such as Claude and ChatGPT. It enables seamless execution of tasks such as legal search, corporate number lookup, and retrieval of medical institution information. The platform supports four MCP servers: the e-Gov Laws API, the National Tax Agency Corporate Number API, the Ministry of Health, Labour and Welfare medical and nursing care API, and the Ministry of Land, Infrastructure, Transport and Tourism real estate API. Through these, AI systems can directly perform legal searches, corporate number lookups, medical institution searches, and retrieval of real estate regulations. Pricing starts with a Free plan at 0 yen per month for the laws MCP. The Standard plan, priced at 150,000 yen per month, adds the tax law MCP. The Enterprise plan starts at 500,000 yen per month and includes all four MCPs. Custom MCP development is also available for Enterprise customers by separate quotation. The AI support feature inside Puente MCP Hub is implemented not as a simple FAQ chatbot but as an AI agent. It actually connects with the laws MCP, tax law MCP, labor MCP, and real estate MCP, calling the MCP servers in real time to retrieve data and answer user questions. The dashboard also includes an MCP playground, allowing users to test each MCP directly in the browser. The service was developed in response to growing interest in MCP as AI agents increasingly need to connect with external data sources. Japanese public APIs, however, often lack English documentation and require support for unique authentication methods and data formats, creating a high barrier for overseas AI developers. Puente developed Puente MCP Hub by applying its experience in AI-powered offshore development in Bolivia, aiming to connect Japanese public data with the global AI ecosystem. Puente MCP Hub is also used in Subsidy AI, another service provided by Puente. Subsidy AI automatically crawls 67 sites every day, including 20 central government ministry websites and industrial promotion foundations and support centers across all 47 Japanese prefectures, using AI to match subsidies and grants for small and medium-sized enterprises. By using Puente MCP Hub’s laws MCP and tax law MCP, Subsidy AI automatically supplements subsidy candidates with related systems, legal information, and corporate data, helping companies make better adoption decisions. Going forward, Puente plans to expand the supported public API lineup, including the Financial Services Agency’s EDINET API and the Japan Patent Office’s J-PlatPat API. The company will also support connections between industry-specific data sources and AI through custom MCP development services for Enterprise customers.