Schema Analysis

Overview

Schema Analysis is a api security tool that appears across api security workflows in this knowledge base. It is referenced as part of higher-level security analysis, investigation, monitoring, or validation activity rather than as an end in itself.

What It Is

Schema Analysis is best understood as a api-security tool in this knowledge base. Its role is conceptual and system-facing rather than procedural: it gives analysts or defenders a structured way to examine evidence, model system behavior, or reason about security state.

How It Works

Schema Analysis works by turning technical inputs into more interpretable outputs at the system level. Across the source skills, it appears as part of larger analysis, investigation, monitoring, or validation loops rather than as a standalone end state.

Core Concepts

• api security
• graphql
• introspection
• schema extraction
• query abuse

Typical Workflow

• TARGET = "https://target-api.example.com"

Use Cases

• Testing GraphQL endpoints for exposed introspection that reveals the complete API schema
• Mapping the attack surface of a GraphQL API to identify sensitive queries, mutations, and types
• Testing for GraphQL-specific vulnerabilities including query depth abuse, batching attacks, and field-level authorization
• Assessing GraphQL implementations where introspection is disabled but schema can be reconstructed through error messages
• Evaluating defenses against resource exhaustion through deeply nested or complex GraphQL queries
• Assuming introspection is the only way to discover the schema (error messages and field suggestions reveal information even when introspection is disabled)
• Missing subscription endpoints that may expose real-time data streams without authentication

Limitations

• Output still depends on context, data quality, and surrounding analysis.
• The tool should be interpreted as part of a broader workflow, not as a complete answer by itself.
• Capabilities and visibility vary depending on environment, integrations, and available inputs.

Related Tools

• Altair GraphQL Client, And Attack Generation With Support For Schema Brute Forcing, And Query Limits, Clairvoyance, Field Suggestions, Graphql Cop, GraphQL Voyager, InQL

Sources

• performing-graphql-introspection-attack