How do I get an e-Stat API key?

Register for a free account at e-stat.go.jp, then visit your My Page to generate an Application ID (appId). Approval is instant.

Is the data available in English?

Many tables support English translations for table titles and category names. The API uses lang=E by default. Some specialized datasets may only be available in Japanese.

What types of statistics are covered?

The database covers national census data, labor force surveys, consumer price indices (CPI), trade statistics, industrial production, health, and education metrics published by all Japanese government ministries.

Japan e-Stat MCP Server for LlamaIndex 2 tools — connect in under 2 minutes

Name: Japan e-Stat
Availability: InStock
Author: Vinkius

docs.llamaindex.ai/en/stable/module_guides/tools/mcp

Built by Vinkius GDPR 2 Tools Framework

LlamaIndex specializes in data-aware AI agents that connect LLMs to structured and unstructured sources. Add Japan e-Stat as an MCP tool provider through Vinkius and your agents can query, analyze, and act on live data alongside your existing indexes.

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python

import asyncio
from llama_index.tools.mcp import BasicMCPClient, McpToolSpec
from llama_index.core.agent.workflow import FunctionAgent
from llama_index.llms.openai import OpenAI

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    mcp_client = BasicMCPClient("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
    mcp_tool_spec = McpToolSpec(client=mcp_client)
    tools = await mcp_tool_spec.to_tool_list_async()

    agent = FunctionAgent(
        tools=tools,
        llm=OpenAI(model="gpt-4o"),
        system_prompt=(
            "You are an assistant with access to Japan e-Stat. "
            "You have 2 tools available."
        ),
    )

    response = await agent.run(
        "What tools are available in Japan e-Stat?"
    )
    print(response)

asyncio.run(main())

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About Japan e-Stat MCP Server

The Japan e-Stat MCP Server connects your AI agent to the official Portal of Government Statistics of Japan — the most comprehensive public data repository for the world's third-largest economy.

LlamaIndex agents combine Japan e-Stat tool responses with indexed documents for comprehensive, grounded answers. Connect 2 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.

Core Capabilities

Table Search — Discover statistical tables across all Japanese government ministries by keyword. Covers census data, national accounts, industrial production, foreign trade, labor force surveys, and more.
Data Retrieval — Pull raw numerical data from any table, fully classified by category, geographic area, and time period.
English Support — The API supports lang=E for English-translated table names and categories where available.

Free API key required (instant registration at e-stat.go.jp). Japan publishes some of the most detailed and reliable economic statistics in the world, making this an essential resource for global macro analysis, trade research, and market intelligence.

The Japan e-Stat MCP Server exposes 2 tools through the Vinkius. Connect it to LlamaIndex in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Japan e-Stat to LlamaIndex via MCP

Follow these steps to integrate the Japan e-Stat MCP Server with LlamaIndex.

Install dependencies

Run pip install llama-index-tools-mcp llama-index-llms-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.py and run: python agent.py

Explore tools

The agent discovers 2 tools from Japan e-Stat

Why Use LlamaIndex with the Japan e-Stat MCP Server

LlamaIndex provides unique advantages when paired with Japan e-Stat through the Model Context Protocol.

Data-first architecture: LlamaIndex agents combine Japan e-Stat tool responses with indexed documents for comprehensive, grounded answers

Query pipeline framework lets you chain Japan e-Stat tool calls with transformations, filters, and re-rankers in a typed pipeline

Multi-source reasoning: agents can query Japan e-Stat, a vector store, and a SQL database in a single turn and synthesize results

Observability integrations show exactly what Japan e-Stat tools were called, what data was returned, and how it influenced the final answer

Japan e-Stat + LlamaIndex Use Cases

Practical scenarios where LlamaIndex combined with the Japan e-Stat MCP Server delivers measurable value.

Hybrid search: combine Japan e-Stat real-time data with embedded document indexes for answers that are both current and comprehensive

Data enrichment: query Japan e-Stat to augment indexed data with live information before generating user-facing responses

Knowledge base agents: build agents that maintain and update knowledge bases by periodically querying Japan e-Stat for fresh data

Analytical workflows: chain Japan e-Stat queries with LlamaIndex's data connectors to build multi-source analytical reports

Japan e-Stat MCP Tools for LlamaIndex (2)

These 2 tools become available when you connect Japan e-Stat to LlamaIndex via MCP:

get_japan_stats_data

Use search_japan_statistics first to find the correct table ID. Returns category-classified data with time periods, areas, and values. Retrieve statistical data from a specific Japanese Government e-Stat table

search_japan_statistics

Returns table IDs, organization names, titles, and survey dates. Use the returned table ID with get_japan_stats_data to retrieve actual numbers. Keywords work in both English and Japanese. Common topics: population, GDP, industry, trade, employment, tourism, education, health. Search for statistical tables in the Japanese Government e-Stat database

Example Prompts for Japan e-Stat in LlamaIndex

Ready-to-use prompts you can give your LlamaIndex agent to start working with Japan e-Stat immediately.

"Find Japanese population statistics by prefecture."

"Fetch the latest Consumer Price Index (CPI) data for Tokyo."

"Show me the industrial production index for the automotive sector."

Troubleshooting Japan e-Stat MCP Server with LlamaIndex

Common issues when connecting Japan e-Stat to LlamaIndex through the Vinkius, and how to resolve them.

BasicMCPClient not found

Install: pip install llama-index-tools-mcp

Japan e-Stat + LlamaIndex FAQ

Common questions about integrating Japan e-Stat MCP Server with LlamaIndex.

How does LlamaIndex connect to MCP servers?

Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.

Can I combine MCP tools with vector stores?

Yes. LlamaIndex agents can query Japan e-Stat tools and vector store indexes in the same turn, combining real-time and embedded data for grounded responses.