Review the current state
We identify the existing configuration, dependencies, traffic patterns, application paths, and obvious gaps before deciding what needs to change.
Cloudflare API Security Service
Cloudflare API Security Service: Protect Your Endpoints From Credential Stuffing, Scraping, and Abuse
API endpoints are the most attacked surface on most web applications. Credential stuffing, data scraping, account takeover, and business logic abuse all target APIs specifically because they expose direct access to application data without the UI-level protections web pages carry. Xequent builds custom rate limiting, challenge rules, and bot signatures around your specific API endpoints, tested under real attack conditions before closing.
- CEH Certified
- Top Rated Plus on Upwork
- 100% Job Success
- Handled directly, not outsourced
The API Attack Surface
Cloudflare API Security Service
Xequent provides Cloudflare API security configuration for APIs exposed to credential stuffing, enumeration, scraping and abusive requests. The engagement starts with endpoint and traffic assessment and then applies controls appropriate to the API's authentication, traffic patterns and risk areas.
Why Your API Endpoints Need Dedicated Security Beyond Standard WAF Rules
Standard WAF rules are designed for web page requests. They inspect payloads for SQL injection and XSS patterns but do not understand the expected behaviour of your specific API. An attacker making 10,000 requests to your user data endpoint with valid authentication passes every WAF check while extracting your entire customer database. A credential stuffing bot sending structurally valid login requests to your authentication endpoint bypasses WAF rules entirely because the request itself looks legitimate.
API security closes this gap by enforcing what legitimate API traffic should look like, not just blocking what malicious traffic looks like. Per-endpoint rate limits enforce realistic usage volumes. Schema validation rules block requests that do not match expected data structures. Bot signatures identify the automated tools that target APIs specifically. JWT validation confirms that authenticated endpoints are only accessible with valid tokens.
The result is a protection layer that stops API abuse even when the attacker's requests are structurally indistinguishable from legitimate ones, because the volume, frequency, and patterns of abuse are themselves detectable and blockable.
Per-endpoint rate limiting enforces realistic usage volumes
Schema validation blocks malformed and unexpected requests
Bot signatures catch automated API abuse tools
JWT and token validation at the Cloudflare edge
GraphQL introspection blocking and query depth limits
mTLS enforcement for high-security API consumers
Data scraping detection via response size and frequency analysis
Written documentation of every rule and endpoint protected
Every API security engagement closes with a written report covering every rule, threshold, and protected endpoint. You own the documentation and can share it with any future team or auditor.
Attack Types Covered
API Attack Vectors This Service Addresses
Credential Stuffing on Auth Endpoints
Automated login attempts using breached credential lists against your authentication API. Rate limiting per IP and per client fingerprint stops high-volume stuffing campaigns without affecting legitimate login traffic.
Data Scraping via API Enumeration
Sequential requests to data endpoints extracting records in bulk. Rate limiting and response volume monitoring detect and block scraping campaigns before they extract significant data.
GraphQL Query Abuse
Schema introspection, deeply nested query attacks, and query batching used to enumerate your data model and exhaust server resources. Introspection blocking, depth limits, and complexity limits address each attack vector.
Business Logic Abuse
Attacks that exploit your application's own logic, price manipulation, inventory lock attacks, voucher enumeration. Rate limiting on specific business operation endpoints makes these attacks economically unviable.
Token and JWT Abuse
Reuse of leaked tokens, attempts to access endpoints without valid authentication, and token enumeration attacks. Edge-level JWT validation ensures only properly authenticated requests reach your application.
Unauthenticated Endpoint Probing
Automated scanning of API paths to find endpoints that should require authentication but do not. WAF rules blocking path pattern probing and rate limiting on 401 responses reduce the value of this reconnaissance.
Process
How the API Security Engagement Works
01
Endpoint Discovery and Risk Assessment
I map your public and semi-public API endpoints, categorise them by risk level (authentication endpoints, data access endpoints, business operation endpoints), and identify which are currently unprotected or under-protected based on your Cloudflare logs.
02
Traffic Baseline Analysis
Understanding what legitimate API traffic looks like (request volumes, client distributions, time-of-day patterns) is essential for setting rate limits that block abuse without affecting genuine API consumers. I extract this baseline from your Cloudflare analytics before writing any rules.
03
Rule Design and Implementation
Per-endpoint rate limiting rules, WAF rules targeting API-specific attack patterns, bot signature rules for automated API clients, and schema validation rules are written and deployed in log-only mode. I review what each rule would block against real traffic before activation.
04
Attack Simulation and Testing
Rules are tested against credential stuffing patterns, scraping sequences, and GraphQL query abuse profiles. Legitimate API consumer simulation runs concurrently to confirm zero disruption to real integrations and mobile applications.
05
Handover Documentation
Written report covering every protected endpoint, every rule and its threshold, and the rationale behind each configuration decision. A guide to reading API security events in your Cloudflare dashboard. Process for adjusting rate limits as legitimate traffic grows.
FAQ
Cloudflare API Security: Frequently Asked Questions
Why are API endpoints more vulnerable than regular web pages?
APIs expose direct access to your application's data and business logic without the browser-level protections that web pages carry. Attackers can interact with APIs programmatically at very high speed, using automated tools to probe endpoints, attempt credential stuffing against authentication routes, extract data through scraping, and abuse business logic in ways that web page interfaces prevent. APIs also tend to have weaker rate limiting and fewer authentication checks than login pages because they are designed for programmatic access, which makes them attractive targets.
What is API rate limiting and why does it matter for security?
Rate limiting restricts how many requests a client can make to an API endpoint within a defined time window. Without rate limiting, a single attacker or automated tool can make unlimited requests, enabling brute force attacks on authentication endpoints, mass data extraction through repeated queries, and resource exhaustion that denies service to legitimate users. Effective API rate limiting is granular (set per endpoint, per HTTP method, and per client identifier) rather than a single site-wide limit that sophisticated attackers can easily work around.
How do you protect GraphQL APIs specifically?
GraphQL APIs have unique security challenges that REST API protection does not fully address. Introspection queries allow attackers to map your entire schema, providing a target list for subsequent attacks. Deeply nested queries can exhaust server resources in a single request (query depth attacks). Batched operations can bypass per-request rate limits. Cloudflare API security for GraphQL includes introspection blocking for production environments, query depth and complexity limits, and rate limiting at the operation level rather than just the HTTP request level.
Can API security protection work alongside my existing authentication?
Yes. Cloudflare API security operates at the network layer and complements your application-level authentication rather than replacing it. Cloudflare's rules can validate that JWT tokens are present and well-formed before requests reach your application, enforce mTLS for high-security API consumers, and block unauthenticated requests to endpoints that should require authentication. This adds a security layer that stops most attacks before they reach your authentication logic.
What is the difference between API security and a WAF?
A standard WAF inspects request payloads for known attack patterns, SQL injection, XSS, path traversal. API security goes further by enforcing the expected shape and behaviour of legitimate API traffic: correct content types, valid schema structures, expected request rates per consumer, and authenticated access to protected endpoints. The two approaches are complementary. WAF rules block malicious payloads; API security rules enforce what legitimate API traffic should look like and block anything that deviates.
Do you protect both REST and GraphQL APIs?
Yes. REST endpoint protection focuses on path-level rate limiting, method enforcement, header validation, and JWT/token presence checking. GraphQL protection adds introspection blocking, query depth limits, query complexity limits, and operation-level rate limiting. If your application exposes both, both can be protected within the same Cloudflare configuration.
What documentation do you provide at the end of the engagement?
Every API security engagement closes with a written report covering every rate limiting rule and its threshold, every WAF rule protecting your endpoints, the specific attack patterns each rule targets, how to read Cloudflare API event logs, and a process for adjusting rate limits as your legitimate traffic grows. You receive the full context needed to manage and evolve the configuration independently.
Keep reading
Related guides
Get Protected
Are Your API Endpoints Protected Against Automated Abuse?
Book a free API security review. I map your endpoint exposure and show you where your current configuration leaves gaps, before an attacker finds them.
A More Complete Engagement
What this Cloudflare API Security Service means for your website
Cloudflare API Security Service should be treated as a business-critical security project, not a single setting. The work begins by understanding your current environment and ends with tested changes and a clear handover.
Choose the right controls
Controls are selected around the actual website rather than copied from a generic checklist. That keeps the configuration useful and reduces unnecessary complexity.
Test and document
Changes are verified against expected behaviour and documented so you have a reliable record of what was done and how the important controls work.
Real-World Scenarios
Designed for the problems that show up after launch
Security services matter most when they solve a specific operational problem. This engagement is useful when your team is dealing with situations like these.
Suspicious traffic keeps increasing
Unexpected requests, scanning, scraping, or automated abuse can consume resources and obscure the traffic that actually matters.
Important endpoints need stronger protection
Login, admin, API, checkout, and other sensitive paths often need controls that are more precise than a site-wide security rule.
A previous configuration is causing problems
Security changes can sometimes create false positives or unexpected behaviour. A structured review can separate genuine protection gaps from configuration mistakes.
You need confidence after an incident
Following malware, abuse, or an outage, the goal is not only to fix the immediate issue but also to reduce the chance of the same path being exploited again.
Your team needs a clear handover
Technical security work is more valuable when the next person can understand the configuration instead of inheriting undocumented rules and settings.
The website is becoming more important
As traffic, integrations, customers, and application complexity grow, security controls need to evolve with the website rather than remain on their original defaults.
Why This Matters
The best security configuration is one your website can actually live with.
Security that blocks legitimate customers is not a successful outcome. The objective is a balanced configuration that reduces meaningful risk while preserving the normal behaviour your business depends on.
Engagement Flow
What happens from first conversation to handover
01. Scope the problem
We establish what is happening, which parts of the website are affected, and what a successful outcome needs to look like.
02. Review the evidence
Existing settings, logs, traffic behaviour, application paths, and relevant integrations are reviewed so the work is based on evidence rather than assumptions.
03. Implement carefully
Relevant configuration changes are made with attention to legitimate traffic and the dependencies that keep the website operating normally.
04. Verify the result
Expected behaviour is checked and obvious edge cases are investigated before the work is considered complete.
05. Hand everything over
You receive the practical explanation and documentation needed to understand the completed work and make informed decisions later.
Before Hiring
Questions worth asking about this service
Can this work be done on an existing website?
Yes. Existing websites are often the best candidates because the work can begin with the current state rather than rebuilding everything from scratch.
Do you replace everything that is already configured?
No. Existing controls are reviewed first. Useful settings can be retained and improved rather than replaced simply for the sake of changing them.
Will I understand what was changed?
The handover is intended to make the important decisions understandable, including what changed, why it changed, and what should be monitored afterward.
Start With the Right Question
Not sure whether you need this service?
Send over the problem you are seeing. A focused review can help determine whether this service is the right fit or whether another security fix should come first.
Practical guidance
API security starts with the endpoints attackers can actually reach
APIs often need different controls from ordinary web pages. Authentication endpoints, public APIs, admin APIs and webhook routes can each require different thresholds and rules. We review the API surface and configure Cloudflare protections around the application rather than applying one rule everywhere.
What to Expect
API controls we can configure
Depending on the architecture, controls may include rate limiting, WAF rules, request filtering, access restrictions, challenge strategies and monitoring for repeated abusive patterns.
Direct Expert Contact
Speak directly with Rana Shahwaiz Aslam
Xequent is operated by Rana Shahwaiz Aslam. The current professional profile shows 100% Job Success, Top Rated Plus, 37 jobs, and 851 hours on Upwork, with pricing scoped to the engagement rather than an open-ended hourly meter. Rana's profile title identifies him as CEH Certified and focused on managed Cloudflare security and cybersecurity.