Every feature built for
system clarity.

NxtOne gives your team a single source of truth for how your software actually behaves — captured from runtime, reasoned by AI, visible to everyone.

AI-Powered

Root Cause Analysis
in Seconds

Ask “why did this fail?” in plain English. NxtOne traces through your system to pinpoint the exact service, method, and line of code — across any number of microservices.

No more digging through logs. No more guessing. Get the answer and the fix in under 60 seconds.

  • Traces across all service boundaries automatically
  • Pinpoints root cause down to the exact line of code
  • Suggests concrete fixes, not just symptoms
NxtOne AI Investigator
Why are EU checkout orders failing since Jan 15?
I've analyzed 847 execution events across 6 services for the EU checkout path.APIGateway → OrderService → PaymentService ✓
OrderService → InventoryService.checkStock() ✗
InventoryService → StockValidator.validate() ✗Root cause: StockValidator.java:142 throws NullPointerException when warehouse_region is null — which affects all EU orders since the Jan 15 DB migration removed the default value.
How do I fix it?
Add a null check with fallback to "EU-WEST" at StockValidator.java:142:String region = warehouse_region
  != null ? warehouse_region
  : "EU-WEST";This will resolve the issue for ~2,340 affected orders in the EU pipeline.
Ask about this investigation...
Temporal Analysis

Execution Time Machine

Replay any execution flow step by step. Scrub through time to see exactly what happened, when, and in what order — like a DVR for your distributed system.

Understand the exact sequence of events that led to a bug, a performance regression, or an unexpected side effect.

  • Scrub forward and backward through any execution
  • See data values at each point in time
  • Compare executions side by side to spot regressions
Execution Replay14:32:07.142 — 14:32:07.891
+0ms

APIGateway.routeRequest()

POST /api/orders — userId: eu-8827

+12ms

OrderService.processOrder()

orderId: ORD-38291, items: 3

+89ms

PaymentService.charge()

amount: €142.50, status: SUCCESS

+134ms

InventoryService.checkStock()

warehouse_region: null

+136ms

StockValidator.validate()

NullPointerException at line 142

+749ms

OrderService.handleFailure()

status: ROLLED_BACK, refund initiated

0ms
749ms
Natural Language

Ask Your System
Anything

No query language to learn. No dashboards to configure. Just ask questions in plain English and get accurate answers from your system's actual runtime behavior.

Perfect for onboarding new engineers, incident response, and architecture reviews.

“How does the checkout flow work?”
ONBOARDING
“What services depend on InventoryDB?”
DEPENDENCY
“What changed between yesterday and today?”
REGRESSION
“Which services have the highest error rate?”
MONITORING
“What happens if PaymentService goes down?”
RESILIENCE
Distributed Tracing
Follow any request across
every service it touches.

Zero manual instrumentation. NxtOne automatically maps the full execution path with timing, data, and behaviors at every hop.

API Gateway
+0ms
ROUTES
AuthService
+3ms
VALIDATES
OrderService
+12ms
CALLS
PaymentService
+89ms
CALLS
InventoryService
+134ms
EMITS
OrderEvents
+138ms
6
Services traversed
138ms
Total latency
847
Events captured
0
Lines of config
Real-Time

Live Event Streaming

Watch your system's execution events flow in real-time. See method calls, database queries, message emissions, and service interactions as they happen.

The stream feeds directly into NxtOne, keeping your view always up to date with your system's actual behavior.

  • Sub-second latency from execution to visibility
  • System view updates continuously
  • Track event throughput and system health
Event Stream
142 events/sec
Setup
Up and running in minutes.
Not weeks.

Connect your repository and NxtOne analyses your entire codebase automatically. No SDK, no annotations, no config files.

Connect Repositoryterminal
# 1. Connect your GitHub repo $ nxtone connect github/my-org/my-app # 2. NxtOne scans automatically ✓ Repository connected ✓ Scanning source code... ✓ 847 methods across 6 services mapped ✓ System map built ✓ AI reasoning ready # 3. That's it. Ask anything. $ nxtone ask "Why are EU orders failing?"
What NxtOne Capturesoverview
// Your code — encrypted, never viewed Source Code → Encrypted end-to-end Software Behaviour → Encrypted end-to-end Service Map → Full dependency mapping // No SDK. No annotations. No config. // Everything encrypted with AES-256. // No one at NxtOne can view your data.
Compatibility
Works with your stack.

NxtOne integrates with the frameworks, databases, and infrastructure you already use.

Java
Python
Node.js
Spring Boot
FastAPI
NestJS
PostgreSQL
Redis
Kafka
AWS
Azure
Kubernetes
Docker

See it in action.

Start shipping today.

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