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 GOVERN BEHAVIOR?

Govern Behavior

Understand patterns and govern behavior-informed decisions before suspicious activity 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 ENFORCE POLICY?

Enforce Policy

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

HOW PROXYBLE FITS

How Proxyble Fits Into Your API Stack

Proxyble adds continuous behavioral analysis and adaptive runtime enforcement alongside your existing WAF, API gateway, and security tooling.

Capability	Proxyble	WAF / WAAP	API Gateway	Bot Management Platform
Continuously understands consumer behavior	Core capability	Request-focused	Not primary	Often
Adapts decisions to observed behavior	Behavior-informed	Static Rules	Static Rules	Policies
Maintains per-client behavioral context	Continuous state	Limited	Limited	Often
Governs authenticated-client abuse	Core capability	Partial	Limited	Varies
Protects resources based on consumption impact	Resource-aware	Limited	Limited	Varies
Applies graduated responses	Core	Block / challenge	Limit / reject	Often
Discovers APIs and manages posture	Complementary	Limited	Core	Limited
Filters malicious individual requests	Complementary	Core	Limited	Often
Enforces decisions during live API use	Core	Core	Core	Product-dependent
Runs in self-hosted and isolated environments	Native support	No	No	No
Edge deployment support	Yes	No	No	No
Free / Open Source	Yes	No	No	No