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Japan Open Data Lab

Independent data lab democratizing Japanese public open data for global AI and quant finance. Normalized Parquet, Python SDK, and MCP servers.

Location Tokyo, Japan Joined Joined on  Personal website https://rapidapi.com/organization/japan-opendata-lab github website twitter website

Education

Computer Science & Quantitative Economics

Pronouns

they/them

Work

Data Engineering & Research Team at Japan Open Data Lab

Thought Experiment: If 100GB of structured/3D data could be losslessly compressed to 1GB, what would you build?
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Thought Experiment: If 100GB of structured/3D data could be losslessly compressed to 1GB, what would you build?

#discuss #architecture #dataengineering #database
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3 min read

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Building an Automated Python ETL Pipeline for Japan's 1,741 Municipalities Open Data (SSDSE-A)
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Building an Automated Python ETL Pipeline for Japan's 1,741 Municipalities Open Data (SSDSE-A)

#automation #datascience #python #tutorial
1
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6 min read
What I Learned Building Multiple MCP Servers for Local LLMs (Qwen3-8B): Tool Granularity, Latency Traps, and Dogfooding
japanopendatalab profile

What I Learned Building Multiple MCP Servers for Local LLMs (Qwen3-8B): Tool Granularity, Latency Traps, and Dogfooding

#mcp #llm #python #duckdb
2
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5 min read
MCP Explained in 5 Layers: How I Connected 10.16M Records to AI (and Why It's a Blue Ocean)
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MCP Explained in 5 Layers: How I Connected 10.16M Records to AI (and Why It's a Blue Ocean)

#mcp #claude #ai #opensource
1
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4 min read
Analyzing 40 Years of Japanese Public Open Data in 3 Minutes with DuckDB (No API Keys, In-Memory Parquet)
japanopendatalab profile

Analyzing 40 Years of Japanese Public Open Data in 3 Minutes with DuckDB (No API Keys, In-Memory Parquet)

#python #datascience #duckdb #ai
Comments
3 min read
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