PRODUCTS / API SECURITY
Protection that fits how APIs actually work.
Per-endpoint rate limiting, schema validation, and abuse detection — built for the authenticated, machine-to-machine reality of modern APIs, not retrofitted from website tooling.
API request validation
Key → Schema → Limit → Origin
API requests with keys and tokens validated, inspected, and rate-limited per endpoint before they reach your code.
API key
identity-aware limits
JSON
body inspection
429
Retry-After handling
Limit by what the abuse actually looks like.
Basic protection throttles by source IP. That works for crude floods but fails for everything else — authenticated abuse, distributed attacks from residential proxies, API-key sharing, and credential stuffing all bypass IP-based limits easily.
CrownWall’s Layer 7 controls work with full request context. You build limits that match the real abuse pattern, not just a generic ceiling.
Business-logic protection
Rate limits can follow the identity, endpoint, body field, session, or key involved in the abuse pattern.
Per key
not just IP
Per endpoint
scoped rules
Per field
body-aware
Granular by design.
Apply limits to the dimensions that actually identify API abuse.
Per IP
The classic baseline limit for crude floods and obvious request bursts.
Per header / API key
Limit each unique API key to its own rate instead of grouping shared infrastructure together.
Per cookie / session
Limit per authenticated session for user-aware abuse patterns.
Per URL parameter
Limit by user ID, account ID, or similar identifiers in the URL.
Per request-body field
For POST endpoints where the identifier sits inside the JSON body.
Per concurrency
Cap in-flight requests, not just requests per second.
API protection in practice.
The right limit often is not “100 requests per second per IP.” It is “no more than 5 password-reset requests per email address per hour.” That kind of business-logic limit is exactly what CrownWall API controls are for.
Reject malformed requests before they reach your code.
Validate incoming requests against your API schema — reject calls with unexpected fields, wrong types, or malformed payloads at the edge, before they touch your application.
CrownWall also surfaces the endpoints actually receiving traffic, helping you identify shadow APIs you didn’t know were exposed.
Schema-aware edge checks
Block malformed payloads, unexpected fields, and invalid request shapes before they become application load.
Schema
validation
Shadow
API discovery
JSON
inspection
Feature tags
Per-key rate limiting
Per-endpoint scoping
Schema validation
Concurrency limits
Composed rules
Shadow API discovery
JSON inspection
429 + Retry-After