API Security Through Invisibility

Make Your APIs Invisible to Unauthorized Traffic

The Problem

APIs are the fastest-growing attack surface. Public API endpoints are constantly probed by automated scanners, AI crawlers, and malicious bots. API enumeration tools discover undocumented endpoints. Rate limiting and API keys are the primary defenses, but they only work after the endpoint is discovered. The rise of AI agents and LLM-powered crawlers has amplified this problem. Automated systems aggressively scrape API endpoints, consuming resources and potentially extracting sensitive data through prompt injection and parameter manipulation.

The Current Approach

Standard API security relies on layered defenses: 1. **API keys**: Long-lived, easily leaked, grant persistent access. 2. **OAuth/JWT tokens**: Better than API keys but application-layer only. 3. **Rate limiting**: Slows attackers but doesn't prevent discovery. 4. **WAF rules**: Block known attack patterns but can't prevent enumeration. 5. **API Gateway**: Centralizes management but endpoints remain discoverable.

The LayerV Solution

LayerV makes API endpoints invisible to unauthorized traffic. Your APIs have zero network presence — they don't respond to any request that doesn't include a valid QURL. For human users, QURLs are generated automatically through IdP authentication. For machine-to-machine access, QURLs can be created programmatically via the QURL API (POST /v1/qurl) with configurable expiration, IP restrictions, and usage limits. The resolve endpoint (POST /v1/resolve) enables headless access for AI agents and programmatic clients that can't follow browser-based QURL flows. This eliminates API enumeration entirely. Scanners, bots, and AI crawlers find nothing. Your APIs only exist for authenticated, authorized consumers — and only for the duration of their session.

Key Benefits