io.github.fieldcure/essentials

Essential MCP server: HTTP, web search, downloads, Wolfram|Alpha, shell, JS, file I/O, memory.

0 tools GitHub

No known CVEs

No license

Actively maintained

Last commit 5d ago

Works with most clients

Transport: stdio

0 tools

Grade F

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Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-fieldcure-essentials": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

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Read me

What io.github.fieldcure/essentials does

Essential MCP server: HTTP, web search, downloads, Wolfram|Alpha, shell, JS, file I/O, memory.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

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Score breakdown

34/100across 5 weighted dimensions

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Frequently Asked Questions

Is io.github.fieldcure/essentials safe to use?: io.github.fieldcure/essentials has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.fieldcure/essentials?: io.github.fieldcure/essentials can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with io.github.fieldcure/essentials?: io.github.fieldcure/essentials is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is io.github.fieldcure/essentials actively maintained?: io.github.fieldcure/essentials is actively maintained — last commit was 5 days ago.

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FieldCure MCP Essentials

Install once, get the basics. A Model Context Protocol (MCP) server that provides 20 essential tools — HTTP requests, web search & fetch, URL file downloads, Wolfram|Alpha computational knowledge, shell commands, JavaScript execution, file I/O, environment info, and persistent memory — for any MCP client. Category search (news, images, scholar, patents) and runtime engine switching (get/set) are always available; capabilities are guarded at invocation time against the active engine. Built with C# and the official MCP C# SDK.

Features

20 essential tools — HTTP, web search & fetch, URL file downloads, runtime search-engine switching (get/set), Wolfram|Alpha, shell, JavaScript sandbox, environment info, file read/write/search, persistent memory + category search (news, images, scholar, patents)

Zero configuration — no API keys needed for default Bing search; optional API keys unlock Serper, Tavily, SerpApi (+ category search tools), and Wolfram|Alpha

Document parsing — web_fetch and read_file extract text from PDF, DOCX, HWPX, PPTX, XLSX into Markdown. PDF text extraction is text-layer only; scanned PDFs without a text layer yield empty text. For OCR-backed indexing use fieldcure-mcp-rag.

Sandboxed JavaScript — Jint engine with strict limits (timeout, statement count, recursion depth)

SSRF protection — HTTP requests, web fetch, and file downloads block private IP ranges and loopback addresses

Cross-client — works with Claude Desktop, VS Code, AssistStudio, and any MCP-compatible client

Stdio transport — standard MCP subprocess model via JSON-RPC over stdin/stdout

Tools

Tool	Description	Destructive
`http_request`	Full HTTP client (GET/POST/PUT/DELETE/PATCH/HEAD) with custom headers and body	—
`web_search`	Search the web and return snippets (title, URL, description)	—
`web_fetch`	Fetch a URL and extract content as Markdown — HTML pages and documents (PDF, DOCX, HWPX, PPTX, XLSX)	—
`download_file`	Download URL content to disk with a configurable download directory, 100 MB limit, and atomic save	Yes
`run_command`	Execute shell commands with working directory, environment variables, shell selection, and output truncation flags	Yes
`run_javascript`	Sandboxed JavaScript execution (Jint) for math, data processing, JSON, regex	—
`wolfram_alpha`	Wolfram\|Alpha Full Results API — symbolic math, plots, unit conversions, constants; MathML passes through for native rendering	—
`get_environment`	System info — local time, timezone, OS, hostname, username, .NET version	—
`read_file`	Read files — text with offset/limit, documents (PDF, DOCX, HWPX, PPTX, XLSX) parsed to Markdown	—
`write_file`	Write or append text to files with auto directory creation	Yes
`search_files`	Search files by glob pattern and content (grep-like)	—
`remember`	Store a key-value memory (persisted in SQLite)	—
`forget`	Delete memories by key or keyword search	Yes
`list_memories`	Search and list stored memories with FTS5 and pagination	—

Tool

Description

Destructive

http_request

Full HTTP client (GET/POST/PUT/DELETE/PATCH/HEAD) with custom headers and body

—

web_search

Search the web and return snippets (title, URL, description)

—

web_fetch

Fetch a URL and extract content as Markdown — HTML pages and documents (PDF, DOCX, HWPX, PPTX, XLSX)

—

download_file

Download URL content to disk with a configurable download directory, 100 MB limit, and atomic save

Yes

run_command

Execute shell commands with working directory, environment variables, shell selection, and output truncation flags

Yes

run_javascript

Sandboxed JavaScript execution (Jint) for math, data processing, JSON, regex

—

wolfram_alpha

Wolfram|Alpha Full Results API — symbolic math, plots, unit conversions, constants; MathML passes through for native rendering

—

get_environment

System info — local time, timezone, OS, hostname, username, .NET version

—

read_file

Read files — text with offset/limit, documents (PDF, DOCX, HWPX, PPTX, XLSX) parsed to Markdown

—

write_file

Write or append text to files with auto directory creation

Yes

search_files

Search files by glob pattern and content (grep-like)

—

remember

Store a key-value memory (persisted in SQLite)

—

forget

Delete memories by key or keyword search

Yes

list_memories

Search and list stored memories with FTS5 and pagination

—

Frequently Asked Questions

Is io.github.fieldcure/essentials safe to use?

io.github.fieldcure/essentials has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.github.fieldcure/essentials?

io.github.fieldcure/essentials can be installed by cloning its GitHub repository and following the setup instructions in the README.

What AI clients work with io.github.fieldcure/essentials?

io.github.fieldcure/essentials is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.

Is io.github.fieldcure/essentials actively maintained?

io.github.fieldcure/essentials is actively maintained — last commit was 5 days ago.

FieldCure MCP Essentials

Features

Zero configuration — no API keys needed for default Bing search; optional API keys unlock Serper, Tavily, SerpApi (+ category search tools), and Wolfram|Alpha

Sandboxed JavaScript — Jint engine with strict limits (timeout, statement count, recursion depth)

SSRF protection — HTTP requests, web fetch, and file downloads block private IP ranges and loopback addresses

Cross-client — works with Claude Desktop, VS Code, AssistStudio, and any MCP-compatible client

Stdio transport — standard MCP subprocess model via JSON-RPC over stdin/stdout

Tools

Tool	Description	Destructive
`http_request`	Full HTTP client (GET/POST/PUT/DELETE/PATCH/HEAD) with custom headers and body	—
`web_search`	Search the web and return snippets (title, URL, description)	—
`web_fetch`	Fetch a URL and extract content as Markdown — HTML pages and documents (PDF, DOCX, HWPX, PPTX, XLSX)	—
`download_file`	Download URL content to disk with a configurable download directory, 100 MB limit, and atomic save	Yes
`run_command`	Execute shell commands with working directory, environment variables, shell selection, and output truncation flags	Yes
`run_javascript`	Sandboxed JavaScript execution (Jint) for math, data processing, JSON, regex	—
`wolfram_alpha`	Wolfram\|Alpha Full Results API — symbolic math, plots, unit conversions, constants; MathML passes through for native rendering	—
`get_environment`	System info — local time, timezone, OS, hostname, username, .NET version	—
`read_file`	Read files — text with offset/limit, documents (PDF, DOCX, HWPX, PPTX, XLSX) parsed to Markdown	—
`write_file`	Write or append text to files with auto directory creation	Yes
`search_files`	Search files by glob pattern and content (grep-like)	—
`remember`	Store a key-value memory (persisted in SQLite)	—
`forget`	Delete memories by key or keyword search	Yes
`list_memories`	Search and list stored memories with FTS5 and pagination	—

Tool

Description

Destructive

http_request

Full HTTP client (GET/POST/PUT/DELETE/PATCH/HEAD) with custom headers and body

—

web_search

Search the web and return snippets (title, URL, description)

—

web_fetch

Fetch a URL and extract content as Markdown — HTML pages and documents (PDF, DOCX, HWPX, PPTX, XLSX)

—

download_file

Download URL content to disk with a configurable download directory, 100 MB limit, and atomic save

Yes

run_command

Execute shell commands with working directory, environment variables, shell selection, and output truncation flags

Yes

run_javascript

Sandboxed JavaScript execution (Jint) for math, data processing, JSON, regex

—

wolfram_alpha

Wolfram|Alpha Full Results API — symbolic math, plots, unit conversions, constants; MathML passes through for native rendering

—

get_environment

System info — local time, timezone, OS, hostname, username, .NET version

—

read_file

Read files — text with offset/limit, documents (PDF, DOCX, HWPX, PPTX, XLSX) parsed to Markdown

—

write_file

Write or append text to files with auto directory creation

Yes

search_files

Search files by glob pattern and content (grep-like)

—

remember

Store a key-value memory (persisted in SQLite)

—

forget

Delete memories by key or keyword search

Yes

list_memories

Search and list stored memories with FTS5 and pagination

—

io.github.fieldcure/essentials

Install in your client