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nerima-open-data-mcp

An MCP server that enables AI clients to search open data from Nerima City, Tokyo, including public facilities, AED locations, shelters, and parks.

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// key findings
🚨
Secret credentials may flow to a network call
1 flow detected: IMPORT_TOKEN. We can’t prove the destination matches the brand the credential belongs to.
🚨
Known vulnerabilities in dependencies: 2 critical
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 2 credentials: IMPORT_TOKEN, PRODUCTION_IMPORT_TOKEN
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies2 critical1 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalvitest@1.6.0GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

criticalvitest@1.6.0GHSA-9crc-q9x8-hgqq

Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening

lowexpress@4.19.2GHSA-qw6h-vgh9-j6wx

express vulnerable to XSS via response.redirect()

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// required environment variables
This server reads these from process.env. You'll be asked to provide them before it can run.
configAPP_BASE_URLheroku config:set =https://<your-app-name>.herokuapp.com
configAUTO_IMPORT_ON_STARTheroku config:set =true
configCSV_CHUNK_ROW_COUNTheroku config:set =5000
configFETCH_RETRY_COUNTheroku config:set =5
configFETCH_RETRY_DELAY_MSheroku config:set =2000
configGCS_BUCKET.env を編集して、GCSを使う場合は とGoogle Cloudのサービスアカウント認証情報を設定してください。GCS未設定の場合は、少数サンプルデータで起動します。
configGCS_PREFIXheroku config:set =nerima-open-data/cache
configGOOGLE_APPLICATION_CREDENTIALS_BASE64サービスアカウントJSONはBase64化して に設定する方法を推奨します。
configGOOGLE_APPLICATION_CREDENTIALS_JSONも利用できますが、Heroku Config VarsではJSON内の改行やクォートが崩れやすいため、Base64形式を推奨します。両方を設定している場合は GOOGLE_APPLICATION_CREDENTIALS_JSON が優先されます。
🔐 secretIMPORT_TOKENheroku config:set =<long-random-token>
configNOTIFY_PRODUCTION_CACHE
configPORTはHerokuが設定するため、アプリケーション側では process.env.PORT 3000 をlistenします。
configPRODUCTION_APP_BASE_URLexport =https://nod-mcp.code4nerima.org
🔐 secretPRODUCTION_IMPORT_TOKENexport ='<production-import-token>'
configSCHEDULER_IMPORT_URL
configSEARCH_CHUNK_READ_CONCURRENCYheroku config:set =4
// full audit trail
The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.
// improvement guidance — verified publishers only
We have 7 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/code4nerima-nerima-open-data-mcp-19q5bp)](https://m8ven.ai/mcp/code4nerima-nerima-open-data-mcp-19q5bp)
commit: dd9bc751641c1bbbea12189553fb394de0ac69b3
code hash: 1da4038edfb710750b1b86c2e1676f90e44ad31585e85d4f5efa51d813a71c7d
verified: 6/23/2026, 10:47:19 AM
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