mcp-cinii
Enables searching CiNii Research for academic articles, books, grants, and research data, and retrieving metadata for individual items.
README
mcp-cinii
MCP for CINII API
An MCP server that exposes CiNii Research search capabilities to LLM clients such as Claude Code.
Tools
search_cinii
Search CiNii Research for academic articles, books, grants, and research data.
| Parameter | Type | Default | Description |
|---|---|---|---|
query |
string | — | Search keywords (e.g. "機械学習" or "machine learning") |
count |
int | 20 | Number of results (1–200) |
start |
int | 1 | 1-based offset for pagination |
lang |
string | "ja" |
Response language: "ja" or "en" |
resource_type |
string | "" |
Filter: "Article", "Book", "Dissertation", "Data", "Research Project", or "" (all) |
Returns CiNii Research JSON-LD response.
get_cinii_item
Retrieve metadata for a single CiNii Research item by its ID.
| Parameter | Type | Default | Description |
|---|---|---|---|
item_id |
string | — | CiNii Research CRID from the item URL (e.g. "1971993809790115224") |
lang |
string | "ja" |
Response language: "ja" or "en" |
Returns JSON-LD metadata for the item.
Installation
pip install mcp-cinii
Configuration
CiNii Research's OpenSearch API requires an application ID (appid). Register as a
developer and obtain one at
CiNii - API User Registration,
then set it via the CINII_APP_ID environment variable. If unset, requests are sent
without appid (may be subject to stricter rate limits).
Usage with Claude Code
claude mcp add --transport stdio cinii -e CINII_APP_ID=<your-appid> -- mcp-cinii
Development
uv sync --group dev
uv run pytest
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