Features

Everything you need to protect APIs in real time.

Proxyble combines behavioral analysis, identity awareness, and real-time policy enforcement to stop abuse before it reaches your application.

Get Started View on GitHub

Incoming requests flowing through Proxyble for real-time API protection.

< 1 ms

Decision latency

Millions

Requests per second

Open Source

Transparent and extensible

No App Changes

Deploy without modifying your applications

HOW DO YOU DETECT ABUSE?

Detect Abuse

Understand patterns and identify suspicious behavior before it becomes abuse.

Per-client behavioral baselines
Explainable decisions
Behavioral deviation detection
Continuous learning
Pattern recognition
Historical comparison
Threat identification
Confidence scoring

A comparison of baseline and live behavior showing a high deviation across API traffic signals.

WHAT THREATS CAN YOU STOP?

Built for Real-World Threats

Protect against a wide range of API abuse and threats.

Credential Stuffing

API Scraping

Bot Abuse

AI Agents

DDoS Protection

Brute Force Attacks

Account Takeover

Fraud Prevention

Excessive Usage

Tenant Isolation

Partner Abuse

And More

HOW DO RATE LIMITS ADAPT?

Adaptive Rate Limiting

Dynamic rate limits that adapt to behavior, risk, and context.

Per-user limits
Per-token limits
Per-endpoint limits
Burst detection
Tenant-aware policies
Adaptive thresholds

♙Per-user limits♙Per-token limits♧Per-endpoint limits♙Burst detection♙Tenant-aware policies♧Adaptive thresholds

Dynamic limit for User 8f4a

━ Request Rate━ Dynamic Limit━ Blocked

HOW DO YOU RESPOND TO RISK?

Adaptive Enforcement

Respond to risk with graduated controls that protect APIs without disrupting trusted traffic.

Observe
Endpoint restrictions
Alert
Identity quarantine
Adaptive rate limiting
Temporary bans
Artificial slowdown
Blocking

Enforcement levels escalating from observe and alert to rate limiting, quarantine, and blocking.

HOW DO YOU DEFINE YOUR POLICIES?

Policy Engine

Write powerful, behavior-aware policies using our expressive DSL.

Behavioral rules
Per client
Escalation
Thresholds
Per endpoint
Exceptions
Time windows
Per API key
Allow lists
Conditions
Per identity
Custom actions
Global policies

policy "credential-stuffing" {
  when
    identity.requests > 100
  and identity.failedLogins > 10
  and identity.riskScore > 80
  and time.window("10m")

  then
    block for 10m
  and alert("High risk behavior")
  and addTag("credential_stuffing")
}

▣Policy DSLHuman-readable rules
⌁Conditional logicIf / And / Or / Else
↗Behavior-awareUse behavioral signals
◷Time windowsRelative or absolute
◇Composable rulesCombine and reuse
▤Policy libraryTemplates and examples

HOW DO YOU DEPLOY PROXYBLE?

Deploy Anywhere

Add Proxyble alongside your reverse proxy or API gateway without changing your application.

Internet traffic
Reverse Proxy / API Gateway
NGINX
Envoy
HAProxy
Kong
Existing API
Proxyble Behavior Protection Engine

Internet traffic passing through a reverse proxy or API gateway to an existing application, with Proxyble providing behavior protection alongside it.

WHY DOES PROXYBLE SCALE?

Platform

High performance, full control, and reliable protection wherever your APIs run.

Performance

✓< 1 ms decisions
✓Millions req/sec
✓Low CPU
✓Low memory

Ownership

✓Data stays in your VPC
✓Local analysis
✓Local enforcement
✓No external processing
✓Open source

Operations

✓REST API
✓CLI
✓Configuration as code
✓Logging & Audit
✓Metrics & Alerts
✓Export & Integrations

WHY IS PROXYBLE DIFFERENT?

Why Choose Proxyble

Compare Proxyble with traditional WAFs, cloud WAFs, and API gateways.

Capability	Proxyble	Traditional WAF	Cloud WAF	API Gateway
Behavior-aware decisions	✓	✕	✕	✕
Identity tracking	✓	Limited	Limited	✕
Adaptive rate limiting	✓	Limited	Limited	Limited
Custom policy engine	✓	Limited	Limited	✕
Runs anywhere	✓	✕	✕	Cloud only
Open source	✓	✕	✕	✕
Sub-millisecond enforcement	✓	○10ms+	○10ms+	○10ms+
Sidecar deployment	✓	✕	✕	✕
Local traffic analysis	✓	✕	✕	✕