This is the future of how software gets built.
Quelm builds AI-powered software — for our clients and for ourselves.
We build software that
didn't exist yesterday.
Custom AI software
We build AI tools for companies that need something specific. No templates, no off-the-shelf — just the tool your team actually needs.
Our own products
We ship our own software under the Quelm name. TokenCapAI is the first — spend enforcement for teams running AI agents. Building products of our own keeps us honest about what's hard.
Shipped under our name.
Used in the real world.
TokenCapAI
AI cost control. Per customer. Actually enforced.
TokenCapAI caps AI spend per end-customer and blocks calls before they exceed budget — not emails you after the bill is gone. The same per-customer data lets Finance bill customers for their actual AI usage. Works across OpenAI, Anthropic, Gemini and 220+ models with sub-50ms enforcement.
Quietburn
Burnout detected. Privately.
An offline AI journaling companion that watches your entries over time and warns you about burnout before you notice it yourself. Runs entirely on your device — no data ever leaves your machine.
Our principles.
Simple beats clever
We pick small, boring architectures and pay the cost of doing them properly. Atomic where it must be atomic. Observable everywhere. No fashionable abstractions for problems we don’t have. Most software fails because it’s too complex for its purpose — not too simple.
A clear no protects a clear yes
We say no to work that isn’t ours, customers who’d be wrong fits, and features that sound right but solve the wrong problem. Narrow focus beats broad approximation — for the product, the customer, and the people building it.
Plan for what breaks, not just what works
Every system we ship answers one question: what happens when this fails? Recovery playbooks before we need them. Detection before automation. Audit trails that prove what actually happened, not just what we hoped.
Ship something real, then sharpen
We put the minimum credible thing in front of real users, then iterate from what they actually do. Perfect is the enemy of usable. Usable is the start of compounding.
Work with us —
or be first to know.
Whether you need custom AI software or want early access to what we're building, we'd like to hear from you.
Build with Quelm
Tell us what you're building. We'll be honest about whether we can help.
Product waitlist
Get early access to TokenCapAI and Quietburn. We keep the list small and go deep with early users.
Available products
TokenCapAI
AI spend control
Quietburn
Offline burnout detection