NINTEI – Advanced FIX Testing Tool by FIXSOL
Streamline FIX Testing. Minimize Risk. Maximize Confidence.
NINTEI – FIX Testing Tool
NINTEI™ is FIXSOL’s advanced, FIX automated testing and simulation tool that helps trading firms test FIX connectivity, validate message flows, and ensure robustness of electronic trading platforms — quickly, accurately, and cost-effectively. It offers comprehensive support for fix protocol testing, helping institutions maintain regulatory readiness and technical accuracy.
It is designed for:
• Buy-Side Firms
• Sell-Side Brokers
• Exchanges
• Vendors and OMS Providers
With NINTEI, firms gain faster time-to-market, reduced QA cost, and greater testing confidence — all without requiring deep technical skills or complex fix testing tools.
Why Choose NINTEI FIX Automated Testing Tool
We manage the complete process:
Automated Regression Testing & QA:
NINTEI automates regression cycles, improving test efficiency and reducing manual efforts.
On-Time Deliveries with Fewer Errors
By identifying issues early and validating them quickly, NINTEI helps teams deliver updates and releases on schedule, reducing production bugs and post-deployment issues.
Lower Variable QA Costs
Automation minimizes the dependency on large QA teams, reducing overall testing costs while maintaining a high level of accuracy and efficiency.
Audit-Ready Test Reporting:
Generates detailed, compliant reports suitable for audits and internal reviews.
Supports Scalability, Accuracy & Speed:
Built to handle high-volume testing with speed and precision.
FIX Message Validation:
Enables adaptive test creation for accurate and streamlined fix message validation.
Key Features of NINTEI – One of the Best FIX Protocol Testing Tools
Dynamic Test Case Generation
Create flexible test cases that adapt to real-time inputs, business logic changes, or updated FIX specifications — reducing manual effort and keeping tests relevant over time.
Supports All FIX Versions
FIX 4.0, 4.1, 4.2, 4.3, 4.4, 5.0, 5.0 SP1, SP2 — supporting full-spectrum fix protocol testing needs.
Multi-Asset Class Testing
Comprehensive FIX testing across Cash Equities, Futures, Options, FX, and other instruments. Ensures accurate order flow, reliable trade execution, and seamless connectivity across trading systems.
No Scripting Required
Define and manage test scenarios with business-friendly interfaces — no coding needed
Scenario Builder & Replay
Build test cases from existing trade logs, reuse and refactor them easily
Positive & Negative Case Validation
Covers every scenario, including edge cases and fail conditions with advanced fix message validation capability
FIX Simulation & Load Testing
Send high volumes of messages to test capacity and robustness — crucial for fix simulation and throughput validation
Support for Custom Tags & Messages
Test proprietary extensions in FIX workflows
Order Management Functions
Simulate full lifecycle of orders and compare behavior with expected results
Environmental Flexibility
Update test cases for different environments (UAT, PROD, etc.) with ease
Refactor & Scale
Handle large scenario libraries, restructure tests for evolving needs
Rich Reporting
Detailed logs, result summaries, and trend comparisons over time — a must for audit-driven fix protocol testing
Who Can Use NINTEI?
Buy-Side Firms –
Test new connectivity, algos, and DMA flows
Sell-Side Brokers –
Validate routing rules and risk management logic
Exchanges –
Certify client connections and FIX engine upgrades with robust fix simulation support
Vendors/OMS Providers –
Ensure stability before deployment using reliable fix protocol testing tools
Built for the Capital Markets
NINTEI was built by industry professionals to meet the real-world challenges of electronic trading. It’s designed to:
Detect defects early in development through comprehensive fix protocol testing
Replace slow, manual regression testing
Keep pace with frequent updates and changing specs
Deliver stable releases faster and with higher confidence
Performance Snapshot
| Capability | Benefit |
| Dynamic Test Cases | Adapts to business logic & live data |
| Stress Testing | Ensures platform scalability |
| Scenario Reuse | Save time on repeated test efforts |
| Real-Time Reporting | Better visibility and audit compliance |
| Custom Tag Support | Compatible with proprietary workflows |
Let’s Connect
See how NINTEI can transform your testing process.
Email: sales@fixsol.com
Request a Demo to experience smarter, scalable FIX protocol testing.