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Cloud InfrastructureAuto-generatedScore: 46

AWS WAFV2 MCP Server

AWS WAFV2, the Web Application Firewall version 2, is the advanced, regionalized iteration of Amazon Web Services' managed service designed to protect web applications and APIs from common web exploits and bots that may affect availability, compromise security, or consume excessive resources.

Quick Start Summary

The AWS WAFV2 MCP server is a Model Context Protocol bridge that connects AI assistants — including Claude Desktop, Cursor, Windsurf, and VS Code Copilot — to the AWS WAFV2 API through natural language. It exposes 10 API endpoints as callable tools, such as AssociateWebACL, CheckCapacity, CreateAPIKey, and more. No authentication is required — setup takes approximately 30 seconds. The server uses STDIO transport and can be installed by running npx -y @mcp/amazonaws-com-wafv2. This integration is sourced from the auto AWS WAFV2 OpenAPI specification (v2019-07-29) and has a quality score of 46/99 (fair documentation coverage).

10Endpointstools mapped
NoneAuthopen access
46/99Qualityfair
~30 secSetupno auth

Server Details

Category
Cloud Infrastructure
Authentication
None
Endpoints
10 operations
Transport
STDIO
Spec Version
v2019-07-29
Install Command
npx -y @mcp/amazonaws-com-wafv2

Environment Variables

AWS_WAFV2_API_KEY

Example: your_aws_wafv2_api_key

Top Endpoints

POST
/#X-Amz-Target=AWSWAF_20190729.AssociateWebACL

AssociateWebACL

POST
/#X-Amz-Target=AWSWAF_20190729.CheckCapacity

CheckCapacity

POST
/#X-Amz-Target=AWSWAF_20190729.CreateAPIKey

CreateAPIKey

POST
/#X-Amz-Target=AWSWAF_20190729.CreateIPSet

CreateIPSet

POST
/#X-Amz-Target=AWSWAF_20190729.CreateRegexPatternSet

CreateRegexPatternSet

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📖 Detailed MCP Integration Guide

A technical breakdown of capabilities, agent workflows, and security/configuration best practices.

Capabilities & Use Cases
AWS WAFV2, the Web Application Firewall version 2, is the advanced, regionalized iteration of Amazon Web Services' managed service designed to protect web applications and APIs from common web exploits and bots that may affect availability, compromise security, or consume excessive resources. Introduced in late 2019, this API version represents a significant evolution, introducing support for both regional and CloudFront (global) distributions within a single, unified management model. The core capabilities of AWS WAFV2 are articulated through a comprehensive set of endpoints that enable programmatic creation, configuration, and management of its foundational components. These include IP Sets for blocking or allowing traffic from specific addresses, Regex Pattern Sets for identifying malicious patterns in HTTP requests, and Rule Groups for creating reusable, custom rule collections. Central to the service is the Web ACL (Access Control List), a critical security container that holds a collection of rules and assigns a default action (Allow or Block) for requests that don't match any rule. Additional endpoints facilitate the association of a Web ACL with protected AWS resources like Application Load Balancers, Amazon API Gateway, Amazon CloudFront, and AWS AppSync. The API also supports granular logging configuration to services like Amazon Kinesis Data Firehose, detailed capacity checking for rule evaluation prior to deployment, and the creation of API keys for integrating third-party data sources into rules.
🤖AI Agent Value
When exposed as tools to an AI coding assistant via the Model Context Protocol, the AWS WAFV2 API transforms from a static documentation reference into a dynamic, actionable security operations layer. An AI agent can leverage these endpoints to actively query, audit, and modify a cloud security posture in real-time. For instance, the AI could be instructed to "List all Web ACLs in my account associated with regional Application Load Balancers" using the ListWebACLs and GetWebACL endpoints, providing an immediate inventory for review. Furthermore, it can perform compliance checks by querying IP Sets to "Verify if our corporate IP range is present in our 'AllowedIPs' IP Set." The true power emerges in automation; an AI assistant could "Analyze the current rules in our 'SQLiProtection' Rule Group and generate a corresponding AWS WAFV2 API call to update its rules" based on new threat intelligence, or "Check the capacity of a proposed new rule set before deployment" using the CheckCapacity endpoint to prevent service disruption. This integration turns the AI into a proactive security co-pilot, capable of interpreting natural language security requirements and translating them into precise API actions, dramatically accelerating response times and reducing manual console navigation.
💬Example Workflows
Practical workflow examples illustrate this collaborative potential. A developer might instruct the AI agent: "Scan our CloudFront distributions and list any that do not have a WAF Web ACL attached. For each, draft a configuration to associate our standard 'GlobalWebProtection' Web ACL." The AI would chain calls to ListWebACLs, GetResourcesForWebACL, and finally execute AssociateWebACL. Another powerful use case is incident response: "We are under a DDoS attack from IP addresses 198.51.100.0/24. Immediately create a temporary IP Set named 'EmergencyBlocklist', populate it with those addresses, and add a new rule at the top of our 'ProductionWebACL' to block traffic from that set." The agent would dynamically execute CreateIPSet, UpdateIPSet, CreateRule, and UpdateWebACL in sequence. For ongoing management, the AI can be tasked with "Generate a report of all logging configurations and their status, then enable logging to our central Firehose stream for any Web ACLs where logging is disabled," using GetLoggingConfiguration and PutLoggingConfiguration. These interactions move beyond simple queries into autonomous, multi-step security orchestration.
🛡️Security & Auth
Crucially, deploying this MCP server for AWS WAFV2 requires strict adherence to security and configuration best practices. Authentication must be handled with extreme care, as the API actions can directly alter security controls. While the provided endpoint list may show a simplified signature, in practice, all requests must be signed using AWS Signature Version 4 with appropriate IAM credentials. Developers must create an IAM user or role for the AI agent with the principle of least privilege; permissions should be scoped explicitly to only the required WAFV2 actions and specific resources (e.g., limiting PutWebACL to a specific Web ACL ARN). It is imperative to use short-lived credentials and consider assuming a dedicated IAM role via AWS STS for the AI session. Configuration of the MCP server itself should be secured, storing any necessary AWS configuration profiles and session tokens in encrypted, environment-specific vaults. Audit logging should be enabled for all WAFv2 API calls via AWS CloudTrail, and the AI's activities should be monitored closely during initial deployment to ensure it operates within defined safety parameters. Developers must also be aware of regional dependencies, as WAFv2 resources are region-specific, and the API calls must be directed to the correct regional endpoint.

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