API Audit Logging
API audit logging is recording a tamper-resistant history of security-relevant events, such as who called which endpoint, when secrets were created or rotated, and which tokens were revoked. Audit logs support incident investigation, compliance, and accountability.
Technical Architecture & Deep-Dive
When a key leaks or data is accessed unexpectedly, audit logs answer what happened. Useful entries include actor identity, action, target resource, timestamp, source IP, and outcome.
Audit logs must avoid storing secrets or unnecessary personal data. Log identifiers and metadata, not request bodies or credentials, and retain logs according to compliance requirements.
Key Architectural Benefits
Implement API Audit Logging at the Edge
Deploy lightweight API aggregation, edge caching, and secret injection in minutes without Docker containers or complex servers.
Frequently Asked Questions
Q:Should audit logs include request payloads?
Generally no. Payloads may contain secrets or personal data. Log metadata and identifiers, and redact sensitive values.
Related Architecture Concepts
PII redaction is removing or masking personally identifiable information, such as names, email addresses, phone numbers, and payment details, from data before it is exposed, logged, or shared. In APIs, redaction ensures clients and logs receive only the personal data they truly need.
Secret rotation is the practice of periodically replacing API keys, passwords, and other credentials with new values and revoking the old ones. Rotation limits how long a leaked secret remains useful and is required by many security standards.
Zero-Trust API Architecture is a security model based on the principle of "never trust, always verify." Every API request, whether originating outside the perimeter or between microservices, must be strictly authenticated, authorized, encrypted, and validated before execution.