Crate mcplint 

MCPLint - MCP Server Testing, Fuzzing, and Security Scanning Platform

A comprehensive security and quality assurance library for Model Context Protocol servers. Provides protocol validation, security scanning, coverage-guided fuzzing, and AI-assisted vulnerability explanation.

Modules

• ai - AI-powered vulnerability explanation engine
• baseline - Baseline/diff mode for incremental vulnerability detection
• cache - Multi-backend caching system with rug-pull detection
• protocol - MCP protocol definitions and JSON-RPC handling
• scanner - Security vulnerability scanning engine
• validator - Protocol compliance validation
• fuzzer - Coverage-guided fuzzing framework

Example

use mcplint::cache::{CacheConfig, CacheManager};
use mcplint::ai::{AiConfig, ExplainEngine};

// Create a memory-only cache
let cache = CacheManager::memory();

// Create an AI explanation engine
let config = AiConfig::default();
let engine = ExplainEngine::new(config)?;

// Explain a finding
let explanation = engine.explain(&finding).await?;
println!("{}", explanation.explanation.summary);

Re-exports

pub use ai::AiConfig;

pub use ai::ExplainEngine;

pub use ai::ExplanationResponse;

pub use baseline::Baseline;

pub use baseline::DiffEngine;

pub use baseline::DiffResult;

pub use cache::CacheConfig;

pub use cache::CacheManager;

pub use errors::McpLintError;

pub use fingerprinting::ChangeSeverity;

pub use fingerprinting::ChangeType;

pub use fingerprinting::FingerprintComparator;

pub use fingerprinting::FingerprintDiff;

pub use fingerprinting::FingerprintHasher;

pub use fingerprinting::FingerprintMetadata;

pub use fingerprinting::NormalizedSchema;

pub use fingerprinting::SchemaNormalizer;

pub use fingerprinting::ToolFingerprint;

pub use scanner::ScanEngine;

pub use scanner::ScanResults;

pub use scanner::Severity;

pub use ui::OutputMode;

pub use ui::Printer;

pub use ui::ProgressStyle;

pub use ui::ScanProgress;

pub use ui::SecurityTheme;

pub use ui::Theme;

pub use validator::ValidationEngine;

Modules

ai

AI Module - AI-Assisted Vulnerability Explanation

baseline

Baseline Module - Incremental vulnerability detection

cache

Cache Module - Multi-backend caching system

client

MCP Client - High-level API for interacting with MCP servers

errors

Enhanced error handling with miette diagnostics

fingerprinting

Tool Definition Fingerprinting Module

fuzzer

Fuzz Engine - Coverage-guided fuzzing for MCP servers

protocol

Protocol layer for MCP communication

reporter

Reporter - Output formatting and reporting

rules

Security Rules Registry

scanner

Security Scanner - Vulnerability detection for MCP servers

transport

Transport layer for MCP server communication

ui

User interface components for mcplint CLI

validator

Protocol Validator - MCP protocol compliance checking