Alternatives to Astra at Seed-stage startups

Unlike tools that require agents, SDKs, or build instrumentation, this scanner operates as a black-box solution. You submit an API endpoint URL and receive a risk score with prioritized findings within under a minute. It uses read-only methods (GET and HEAD) plus text-only POST for LLM probes, making it compatible with any language, framework, or cloud deployment.

The scanner maps findings to OWASP API Top 10 (2023) and covers 12 security categories. It detects authentication bypasses and JWT misconfigurations such as alg=none, weak HS256 keys, expired tokens, missing claims, and sensitive data in claims. Other categories include BOLA and IDOR via sequential ID enumeration, BFLA and privilege escalation through admin endpoint probing, property over-exposure, input validation issues like CORS wildcard usage and dangerous HTTP methods, rate limiting and oversized responses, data exposure including PII patterns and API key formats, encryption misconfigurations, SSRF against URL-accepting parameters, inventory issues like missing versioning, unsafe consumption surfaces, and LLM/AI security probes across Quick, Standard, and Deep tiers.

The scanner parses OpenAPI 3.0, 3.1, and Swagger 2.0 with recursive $ref resolution and cross-references spec definitions against runtime behavior. It flags undefined security schemes, sensitive fields, deprecated operations, and missing pagination. For authenticated scanning, it supports Bearer, API key, Basic auth, and cookies, with a domain verification gate to ensure only domain owners can scan with credentials. A strict header allowlist limits forwarded headers to Authorization, X-API-Key, Cookie, and X-Custom-*.

Pro tier adds scheduled rescans every 6 hours, daily, weekly, or monthly, with diff detection for new findings, resolved findings, and score drift. Alerts are rate-limited to 1 per hour per API and delivered via email or HMAC-SHA256 signed webhooks that auto-disable after 5 consecutive failures. The platform integrates through a Web Dashboard for reporting and trend tracking, a CLI with JSON or text output, a GitHub Action that fails builds based on score thresholds, an MCP Server for AI coding assistants, and a programmable API for custom workflows.

Scanning is read-only with destructive payloads never sent. Private IPs, localhost, and cloud metadata endpoints are blocked at multiple layers. Customer scan data is deletable on demand and purged within 30 days of cancellation; data is never sold and never used for model training. The tool surfaces findings and remediation guidance but does not fix, patch, block, or remediate issues, and it does not perform active SQL injection, command injection, or detect business logic vulnerabilities.