API Secure

What it does

API Secure is an API Security service that continuously discovers an organization's full API inventory, including shadow and third-party APIs, then analyzes each API's health and applies runtime protection against more than 200 attack signals. Its distinguishing approach is fully automated, agentless blackbox discovery from the public perimeter, combined with cloud and API gateway consolidation, so security teams inventory and assess APIs across major cloud environments without deploying agents or instrumenting application code.

How it works

The service runs three coordinated functions: discovery, inspection, and protection. Automated blackbox scanning enumerates apps, APIs, and shadow assets across the external perimeter and consolidates inventories from existing API gateways and multi-cloud accounts. Discovered APIs are then tested with static, dynamic, and software composition analysis to surface vulnerabilities and sensitive data exposure before production. In production, the platform monitors more than 200 runtime signals spanning authentication, authorization, encryption, bot activity, and automated abuse, flagging leaky APIs and blocking attacks such as credential stuffing and AI-driven scraping.

Credentials and traction

In the 2025 Gartner Critical Capabilities for Application Security Testing, Data Theorem earned the top score for the cloud-native applications use case. API Secure is deployed by large enterprises and financial institutions, including Wells Fargo and 7 of the 10 largest banks, alongside Zoom, Coinbase, and eBay. Applications secured by Data Theorem collectively cover more than 2.8 billion users, and the service targets security and development teams protecting production API estates.