Shirabe Calendar FAQs

Question 1

What is Shirabe Calendar API?

Accepted Answer

Shirabe Calendar API is an AI-native REST API that provides astronomically precise Japanese calendar information, including rokuyo, rekichu, kanshi, 24 solar terms, lunar/Japanese eras, and purpose-specific auspicious day judgments with 1-10 scores across 8 categories (e.g., wedding, moving, business).

Question 2

What makes Shirabe Calendar API 'AI-native'?

Accepted Answer

It's designed from the ground up for direct integration with AI agents and LLMs. It supports OpenAPI 3.1, GPTs Actions, Claude Tool Use, Gemini Function Calling, and features an MCP (Model Context Protocol) server, allowing AI agents to discover and utilize its capabilities seamlessly.

Question 3

How accurate is the calendar and auspicious day data?

Accepted Answer

Shirabe Calendar API boasts astronomical precision, particularly for lunar calendar calculations and complex rekichu combinations. This level of accuracy surpasses simple heuristics or LLM-generated code, which often miscalculate due to the need for advanced astronomical computations.

Question 4

What types of auspicious day judgments does it offer?

Accepted Answer

The API provides purpose-specific auspicious day judgments with scores from 1 to 10 for 8 distinct categories: wedding, funeral, moving, construction, business, car delivery, marriage registration, and travel. You can also search for the 'best days' within a specific date range for a given purpose.

Question 5

How can developers integrate Shirabe Calendar API into their applications?

Accepted Answer

Developers can integrate Shirabe Calendar API via standard REST API calls, leveraging its OpenAPI 3.1 specification for client auto-generation in various languages. For AI agent developers, it offers direct integration through GPTs Actions, Claude Tool Use, Gemini Function Calling, LangChain, LlamaIndex, Dify, and its dedicated MCP server.

Shirabe Calendar

Shirabe Calendar

Key Features

Use Cases

Key Features

Use Cases