middleBrick vs Intruder

middleBrick is a self-service API security scanner that requires no agents, SDKs, or code changes. It performs black-box testing using read-only methods such as GET and HEAD, with text-only POST for LLM probes, and completes a scan in under a minute. You submit a target URL and receive a risk score with prioritized findings. Intruder is typically deployed as a SaaS platform accessed through a web interface, where authenticated scans require credentials and configuration of scope, crawl depth, and attack intensity. Both approaches run external scans, but middleBrick emphasizes minimal integration footprint, whereas Intruder focuses on feature-rich authenticated testing and continuous crawling within its platform.

middleBrick detects issues aligned to the OWASP API Top 10 (2023), including authentication bypass, JWT misconfigurations, broken object level authorization, excessive property exposure, input validation flaws, rate limiting issues, data exposure patterns such as API keys and PII, SSRF indicators, and inventory weaknesses. It also includes LLM security testing with adversarial probes across Quick, Standard, and Deep tiers. Intruder covers many of these categories through its vulnerability checks, such as common misconfigurations, injection tests, and authentication brute-force methods. Intruder’s authenticated scans allow session handling and custom payloads, which can surface business logic issues more effectively, though this requires more manual setup. middleBrick maps findings to compliance controls for PCI-DSS 4.0, SOC 2 Type II, and OWASP API Top 10, while Intruder provides detailed vulnerability listings without predefined compliance mappings.

middleBrick requires no installation of agents on endpoints. You interact with it via the web dashboard, CLI, GitHub Action, MCP Server, or API client, and the CLI command follows the pattern middlebrick scan <url>. Authenticated scanning in Starter and higher tiers requires domain ownership verification through DNS TXT records or an HTTP well-known file, and only a limited set of headers is forwarded. Intruder typically involves account setup, target configuration, and optional agent or proxy settings for authenticated scans, with more options for session handling and crawl configuration. Because middleBrick has no runtime components on your infrastructure, setup is faster and incurs lower operational overhead compared to an always-on scanner that may require network adjustments or credential management.

middleBrick pricing starts at no cost for basic scans, with paid tiers at $99 per month for Starter and $499 per month for Pro. The Pro tier adds continuous monitoring, scheduled rescans, diff detection, email alerts, GitHub Action gates, and compliance reports. Enterprise tiers support unlimited APIs, custom rules, SSO, and dedicated support. Intruder offers subscription plans billed annually or monthly, with feature sets that vary by plan, and often positions itself in a comparable price band for mid-sized teams. middleBrick’s continuous monitoring provides diffing between scans, alerting limited to one email per hour per API, and signed webhooks that auto-disable after repeated failures, whereas Intruder focuses on scan scheduling and result management through its own dashboard and notification channels.

middleBrick does not fix, patch, or block findings; it reports and provides remediation guidance. It does not perform intrusive tests such as active SQL injection or command injection, does not detect business logic vulnerabilities, and does not perform blind SSRF testing that relies on out-of-band channels. It is not a replacement for a human pentester in high-stakes audits. Intruder similarly does not fix issues and relies on the tester to validate findings, but its interactive tools allow deeper manual exploitation during scans. Both tools require clear scope definition and ongoing maintenance to remain effective, and neither should be considered a comprehensive security program on its own.