Visus MCP Server

Security-first web access for Claude. Sanitizes pages, blocks injection, redacts PII.

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What is the Visus MCP server?

Most AI and media services work still happens through a UI a human drives. Visus MCP server moves it into the conversation instead. Security-first web access for Claude. Sanitizes pages, blocks injection, redacts PII.

The short version

How Visus-MCP helps your MCP-compatible AI agents become EU AI compliant ready bash npx visus-mcp@0.28.0

The tools it exposes

The server publishes 9 tools. What each one is for:

  • Benefits — Integrate Visus-MCP to future-proof your AI agent against evolving regulations like the EU AI Act. See SECURITY.md for framework
  • Installation — The Installation tool exposed by this server
  • Architecture — The Architecture tool exposed by this server
  • Configuration — See SECURITY.md for full threat model, test examples, and CloudWatch monitoring metrics
  • visus_fetch — Fetch and sanitize a web page with automatic format detection. Supports HTML, JSON, XML, and RSS/Atom feeds. Includes NIST AI RMF / CSF 2.0 / AI
  • visus_read — Extract clean article content from a web page using Mozilla Readability (reader mode). Includes NIST AI RMF / CSF 2.0 / AI 600-1 / OWASP LLM / MITRE
  • visus_search — Search the web via DuckDuckGo and return sanitized results with prompt injection and PII removed. Use before visus_fetch or visus_read to safely
  • visus_fetch_structured — Extract structured data from a web page according to a schema. Includes NIST AI RMF / CSF 2.0 / AI 600-1 / OWASP LLM / MITRE ATLAS / ISO/IEC 42001
  • visus_verify — The visus_verify tool exposed by this server

Getting it running

Because this one is hosted, setup is mostly authentication — you point your client at the endpoint and approve access. Nothing runs on your machine, so there is no runtime to keep patched.

What it needs from you

Configuration is passed through the environment: VISUS_RENDERER_URL, VISUS_SIEM_ENDPOINT, VISUS_SIEM_HEADERS, VISUS_SIEM_SERVICE_NAME, VISUS_SPLUNK_HEC_URL, VISUS_SPLUNK_HEC_TOKEN, VISUS_SPLUNK_INDEX, VISUS_SPLUNK_SOURCETYPE. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

How it compares

This sits in the AI and media services group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Visus's toolset — Benefits, Installation, Architecture and 6 more — is a fair guide to whether it matches your workflow. It is maintained by leochong; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Things to watch

  • Your data travels to the provider's service, so the usual questions apply about what you send and what they retain.
  • With 9 tools registered it takes up a noticeable share of the context window; turn it off in projects that never touch Visus.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
BenefitsIntegrate Visus-MCP to future-proof your AI agent against evolving regulations like the EU AI Act. See [SECURITY.md](SECURITY.md) for framework mappings.
InstallationThe Installation tool exposed by this server.
ArchitectureThe Architecture tool exposed by this server.
ConfigurationSee [SECURITY.md](./SECURITY.md#v030-host-header--cors-hardening) for full threat model, test examples, and CloudWatch monitoring metrics.
visus_fetchFetch and sanitize a web page with automatic format detection. Supports HTML, JSON, XML, and RSS/Atom feeds. Includes NIST AI RMF / CSF 2.0 / AI 600-1 / OWASP LLM / MITRE ATLAS / ISO/IEC 42001 aligned threat report when
visus_readExtract clean article content from a web page using Mozilla Readability (reader mode). Includes NIST AI RMF / CSF 2.0 / AI 600-1 / OWASP LLM / MITRE ATLAS / ISO/IEC 42001 aligned threat report when injection or PII is de
visus_searchSearch the web via DuckDuckGo and return sanitized results with prompt injection and PII removed. Use before visus_fetch or visus_read to safely discover and then read pages. Includes NIST AI RMF / CSF 2.0 / AI 600-1 / O
visus_fetch_structuredExtract structured data from a web page according to a schema. Includes NIST AI RMF / CSF 2.0 / AI 600-1 / OWASP LLM / MITRE ATLAS / ISO/IEC 42001 aligned threat report when injection or PII is detected.
visus_verifyThe visus_verify tool exposed by this server.

How to install the Visus MCP server

{
  "mcpServers": {
    "visus": {
      "command": "npx",
      "args": ["-y", "visus-mcp"],
      "env": {
        "VISUS_RENDERER_URL": "your-value",
        "VISUS_SIEM_ENDPOINT": "your-value",
        "VISUS_SIEM_HEADERS": "your-value",
        "VISUS_SIEM_SERVICE_NAME": "your-value",
        "VISUS_SPLUNK_HEC_URL": "your-value",
        "VISUS_SPLUNK_HEC_TOKEN": "your-value",
        "VISUS_SPLUNK_INDEX": "your-value",
        "VISUS_SPLUNK_SOURCETYPE": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
VISUS_RENDERER_URLEndpoint or connection string the server talks to.Yes
VISUS_SIEM_ENDPOINTConfiguration value read at startup.Optional
VISUS_SIEM_HEADERSConfiguration value read at startup.Optional
VISUS_SIEM_SERVICE_NAMEConfiguration value read at startup.Optional
VISUS_SPLUNK_HEC_URLEndpoint or connection string the server talks to.Yes
VISUS_SPLUNK_HEC_TOKENCredential the server authenticates with.Yes
VISUS_SPLUNK_INDEXConfiguration value read at startup.Optional
VISUS_SPLUNK_SOURCETYPEConfiguration value read at startup.Optional

Example prompts to try

  • Use Visus to Benefits.
  • Use Visus to Installation.
  • Use Visus to Architecture.

Frequently asked questions

It connects Visus to MCP-compatible AI assistants such as Claude and Cursor, exposing 9 tools (Benefits, Installation, Architecture, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Visus directly.