---
name: transit.agentic-jp.com
description: transit.agentic-jp.com exposes a single endpoint that returns a directory of Japanese rail operators and their lines, including canonical operator_id and line_id values, names in Japanese and English, and line colors where available. It is a reference/lookup service, not a real-time data service.
host: transit.agentic-jp.com
---

# transit.agentic-jp.com

This host serves as a static reference layer for Japanese railway data. It is intended for agents that need to discover or validate operator and line identifiers before calling downstream transit APIs that require those IDs. It covers rail operators and their associated lines but does not provide schedules, fares, or real-time status.

## When to use this host

Use this host when an agent needs to enumerate supported Japanese rail operators or lines, or when it must resolve a human-readable operator or line name into a canonical operator_id or line_id before calling a schedule, fare, or route-planning API. Do not use this host for real-time departure times, train schedules, fare calculations, or route planning — those require a dedicated schedule or fare endpoint that accepts the IDs this host provides. This host has no filtering or search parameters; it always returns the full directory, so it is not suitable for high-frequency polling or latency-sensitive paths.

## Capabilities

### Transit Directory Lookup

Returns the full directory of Japanese rail operators and lines with canonical identifiers and localized names, enabling downstream ID-based queries to other transit endpoints.

- **`fetch-japanese-transit-lines`** — Returns a directory of Japanese rail operators and their lines, including canonical operator_id and line_id values, Japanese and English names, and line colors where available.

## Skill reference

### `fetch-japanese-transit-lines`

**Japanese Transit Lines Directory** — Returns a directory of Japanese rail operators and their lines, including canonical operator_id and line_id values, Japanese and English names, and line colors where available.

*Use when:* Use when an agent needs to discover valid operator or line identifiers (operator_id, line_id) for Japanese railways before querying other transit endpoints, or when the user asks for a list of supported Japanese rail lines or operators.

*Not for:* Do not use for real-time train schedules, departure times, or fare lookups; use a dedicated schedule or fare endpoint instead.

**Returns:** Returns an operators array where each entry contains operator_id, Japanese/English names, and a lines array with line_id, Japanese/English names, and optional hex color codes.

**Example:** `GET https://transit.agentic-jp.com/lines`

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