XLUXX MCP Server

XLUXX Trust Layer as an MCP server. Gives any MCP-compatible host (Claude Desktop, Cursor, Continue, etc.) runtime access to trust scores, the Resonance Engine, and the Context Gate.

Install

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "xluxx": {
      "command": "npx",
      "args": ["-y", "xluxx-mcp-server"]
    }
  }
}

With an API key (higher rate limits)

{
  "mcpServers": {
    "xluxx": {
      "command": "npx",
      "args": ["-y", "xluxx-mcp-server"],
      "env": { "XLUXX_API_KEY": "your_key_here" }
    }
  }
}

Get a free key at POST https://api.xluxx.net/register.

Direct CLI

npx -y xluxx-mcp-server

The server speaks MCP over stdio.

Available tools (16)

Core trust tools

resolve_tool

Find the most reliable MCP tool for a given intent. Returns best server, confidence, resonance score, risk flags, and fallback.

• intent (string, required) — what the agent needs to do
• category (string, optional) — category filter

rank_tools

Rank a list of MCP tools by trust score with resonance metrics.

• tools (string[], required) — tool/server IDs

recommend_toolchain

Get tool-chain recommendations for a complex multi-step task.

• task (string, required) — natural-language description

check_server_status

Real-time health status of a specific MCP server, including outage detection.

• server_id (string, required)

get_reliability_trends

Historical reliability data for a server — 24h, 7d, all-time stats.

• server_id (string, required)

search_servers

Search 15,000+ MCP servers by capability, name, or category.

• query (string, required)

get_alerts

Active alerts for degraded or down MCP servers.

• (no arguments)

Resonance Engine

get_resonance_score

Fractal Reliability Index and Coherence Drift for a server.

• server_id (string, required)

analyze_toolchain_risk

Cumulative risk of a multi-step toolchain. Returns chain resonance, weakest links, and risk-adjusted reliability.

• tools (string[], required) — ordered list of server/tool IDs

predict_reliability

Predict near-term reliability based on Fractal Reliability Index and recent trends.

• server_id (string, required)
• horizon_hours (number, optional) — default 24

compare_alternatives

Compare a primary server against alternatives across trust, resonance, latency, and risk flags.

• server_id (string, required) — primary
• alternatives (string[], optional) — explicit alternatives; otherwise auto-selected

detect_drift

Detect coherence drift — schema changes, response inconsistency, or behavioral shift.

• server_id (string, required)
• window (string, optional) — 24h, 7d, 30d (default 7d)

generate_trust_report

Comprehensive trust report: scores, flags, drift, alternatives, recommendations.

• server_id (string, required)
• format (json | markdown, optional)

find_fallback

Best fallback server for a primary tool, ranked by capability overlap and trust.

• server_id (string, required)
• intent (string, optional) — bias the search

monitor_fleet

Aggregate health, alerts, drift, and risk across a set of servers.

• servers (string[], required)

explain_score

Factor breakdown explaining a server's trust and resonance scores, with weights.

• server_id (string, required)

Context Gate (context firewall)

verify_context_integrity

One-shot drift check — verify the agent's context hasn't drifted during a conversation. Call before returning critical responses.

• current_context (string, required) — current state
• original_context (string, optional) — full original for deep comparison
• original_context_hash (string, optional) — SHA-256 of original
• conversation_length (number, optional)

verify_context

Continuous session-based context-firewall check. Requires a session_id from POST /context-gate/register. Returns gate=PASS if intact, gate=BLOCK with the missing instructions if drift exceeds threshold.

• session_id (string, required)
• current_context (string, required)
• turn_number (number, optional)

Example prompts

Once installed, ask Claude:

• "Which MCP tool is most reliable for searching the web right now?"
• "Check the status of the GitHub MCP server."
• "Recommend a toolchain for researching competitors."
• "Compare brave-search against fetch and tavily — which is best?"
• "Predict reliability for postgres-mcp over the next 24 hours."
• "Find a fallback for the slack MCP server."
• "Monitor my fleet: github, slack, postgres, sendgrid."
• "Detect coherence drift on the openai-mcp server over the last 7 days."
• "Has my context drifted since the start of this conversation?"

Environment variables

| Variable | Default | Description | |----------|---------|-------------| | XLUXX_API_URL | https://api.xluxx.net | Override the API base URL | | XLUXX_API_KEY | (none) | API key for higher rate limits |

Links

• API: https://api.xluxx.net
• Website: https://xluxx.net
• GitHub: https://github.com/DrDMT-VR/xluxx-trust
• npm: https://www.npmjs.com/package/xluxx-mcp-server

License

Apache-2.0 — Pablo Solorzano Cohen