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AWS WAF Regional MCP Server Integration Guide

Quick Start Architecture Summary

The AWS WAF Regional MCP server is a Model Context Protocol integration that connects AI assistants (Claude Desktop, Cursor IDE, VS Code, Zed) to the AWS WAF Regional API through natural language directives. It exposes 10 API operations as callable MCP tools, including AssociateWebACL, CreateByteMatchSet, CreateGeoMatchSet, and more. No authentication is required — operates out of the box immediately. Sourced from the auto AWS WAF Regional OpenAPI specification (v2016-11-28) with an overall quality score of 46/99.

Technical Overview & Protocol Integration

The AWS WAF Regional API provides programmatic control over the AWS WAF service specifically for resources within a single AWS Region, such as an Application Load Balancer, Amazon CloudFront distribution (via regional endpoints), or Amazon API Gateway REST API.

By converting the OpenAPI 3.0 specification for AWS WAF Regional into native Model Context Protocol (MCP) tool definitions, developers and AI agents gain programmatic access to endpoints over stdio or HTTP transports. Every endpoint is translated into a discrete tool payload complete with input argument validation, parameter descriptions, and return type definitions.

This setup enables LLM agents to execute multi-step workflows, search records, mutate state, and analyze responses safely within local desktop client sessions like Claude Desktop and Cursor IDE.

2. Technical Specifications Matrix

System Specifications

API NameAWS WAF Regional
Slug Identifieramazonaws-com-waf-regional
CategoryCloud Infrastructure
Auth MethodNone Required
Endpoint Count10 tools mapped
Spec VersionOpenAPI v2016-11-28
Transport TypeSTDIO
Publisher Sourceauto

Developer Resources

Hosted Config JSON Registry URL→Claude Desktop Config Guide→Upstream API Docs

3. Multi-Client Installation Matrix

Copy and paste these pre-formatted JSON snippets into your MCP client configuration files.

Claude Desktop

Add to claude_desktop_config.json

{
  "mcpServers": {
    "amazonaws-com-waf-regional": {
      "command": "npx",
      "args": [
        "-y",
        "@mcp/amazonaws-com-waf-regional"
      ],
      "env": {
        "AWS_WAF_REGIONAL_API_KEY": "your_aws_waf_regional_api_key"
      }
    }
  }
}
Deep link

Cursor IDE

Settings → MCP Servers → Add Hosted Config

{
  "mcpServers": {
    "amazonaws-com-waf-regional": {
      "url": "https://mcpbridge.org/config/amazonaws-com-waf-regional.json"
    }
  }
}

Saves as .cursor/mcp.json in the download. Move it to your project root.

Deep link install →

VS Code / Cline

Use with MCP extension config

{
  "mcpServers": {
    "amazonaws-com-waf-regional": {
      "url": "https://mcpbridge.org/config/amazonaws-com-waf-regional.json"
    }
  }
}

4. Environment Variables & Authentication Reference

Key parameters and credential variable mappings for AWS WAF Regional.

Variable NameRequiredExample Value
AWS_WAF_REGIONAL_API_KEYREQUIREDyour_aws_waf_regional_api_key

5. Endpoints & Tool Schemas Matrix

Search and inspect the 10 tool signatures mapped from OpenAPI.

Executable Code Integration Examples

Call AWS WAF Regional endpoints via cURL, TypeScript, or Python REST SDKs.

curl -X POST "https://api.apis.guru/v2/specs/amazonaws.com/waf-regional/2016-11-28/#X-Amz-Target=AWSWAF_Regional_20161128.AssociateWebACL" \
  -H "Content-Type: application/json" \
  # No auth required

6. Real-World AI Assistant Prompts

Prompt directives for invoking AWS WAF Regional operations inside AI client chats.

1. Information Search & Resource Querying

Read Query

"Use AWS WAF Regional MCP server tools to search resources matching path '/#X-Amz-Target=AWSWAF_Regional_20161128.AssociateWebACL' and summarize available properties."

2. Action Execution & API Payload Creation

Action Execution

"Call AWS WAF Regional operation '/#X-Amz-Target=AWSWAF_Regional_20161128.AssociateWebACL' with parameters configured for environment testing."

3. Multi-Step API Workflow Automation

Workflow Automation

"Inspect recent responses from AWS WAF Regional API, extract target identifiers, and format a clean diagnostic report."

4. Introspection & Schema Audit

Introspection

"Retrieve the full OpenAPI tool schema list for AWS WAF Regional MCP server and generate a technical summary of capabilities."

7. Error Resolution & Troubleshooting Guide

HTTP status codes and JSON-RPC protocol error resolution matrix.

400 Bad Request

Root Cause: Malformed request payload parameters or missing required JSON Schema fields.

Resolution Action: Verify request schema in Section 5 tool specifications before calling operation.

401 Unauthorized

Root Cause: Missing or invalid API key credentials in MCP environment config.

Resolution Action: Define required key in client config under env object.

403 Forbidden

Root Cause: Insufficient scope permissions or unauthorized resource access.

Resolution Action: Check key permissions in developer control panel.

404 Not Found

Root Cause: Resource URL path or requested target ID does not exist.

Resolution Action: Inspect path parameters and resource ID values.

429 Rate Limit Exceeded

Root Cause: Upstream API rate limit quota exceeded.

Resolution Action: Implement exponential backoff retry in tool execution loop.

500 Internal Server Error

Root Cause: Upstream service runtime fault or stdio process crash.

Resolution Action: Inspect STDIO stderr output stream for diagnostic trace.

8. Quality Scorecard & Audit Metadata

Automated evaluation metrics for OpenAPI specification quality.

Quality Grade Index
46
★ Fair Quality Grade
Score Breakdown Checklist
✓Auto-generated specification (+12 pts)
✓Documentation URL available (+12 pts)
✓OpenAPI 3.0 specification available (+8 pts)
✓10 endpoint schemas (+14 pts)

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← View AWS WAF Regional Directory Entry