CastleSoft
CastleSoft AI
AI agents and agentic workflows, engineered in C# and .NET.
CastleSoft AI designs and builds AI agents that streamline workflows and support better decisions for developers and organisations in finance, mining, education and beyond. We combine reasoning, memory and automation with the security and engineering discipline of C# and .NET.
We build with Microsoft Foundry, Microsoft Agent Framework and Semantic Kernel, connect agents to your systems through the Model Context Protocol (MCP), and manage agent identities with Microsoft Entra Agent ID.
What We Offer
AI agents and workflows
Specialist agents that reason, use tools and work together to automate multi-step tasks such as reporting, analysis and code generation.
AI in your .NET systems
Large language model capabilities added to new and existing C# and .NET applications, with model-independent code.
Secure, governed deployment
Agents connected through governed MCP tools, with agent identities, audit logging and human oversight for critical decisions.
Conversational interfaces
Low-code tools that let teams create conversational interfaces and custom AI models with ease.
Australian-Only Processing
On request, we process data in Australia. AI models can run locally on CastleSoft-controlled Apple silicon hardware in Australia, or, where more powerful commercial models are needed, we de-identify the information in Australia first so only non-identifying data leaves the country.
Examples of Our Work
- Automated reporting for Australian mining operations, saving hours of manual work.
- Secure AI handling of sensitive data for Australian superannuation funds, protecting thousands of users.
Built With
Planning an AI Project?
Tell us what you would like to automate or improve, and we will help you choose the right agents, models and safeguards.