Services
Custom software, AI voice agents, automation, and backend architecture
KeenCraft offers four core services: custom full-stack software development, AI voice agent and conversational AI development, CRM and API automation, and data/backend architecture. All are delivered on fixed-price, milestone-based contracts.
Every service is priced fixed and delivered in QA-gated milestones, so you always know the total cost before work begins.
How the work is priced
KeenCraft prices this work as a fixed Statement of Work. The scope, the milestones, and the total are written down before build starts. A stage is tested before that milestone is treated as done. Work that shows up later is scoped and priced on its own, not folded into the original invoice. A written proposal usually lands in 2 to 5 business days after a strategy call, and the timeline is agreed before any code is written.
The four services are custom software, AI voice agents, automation and CRM integrations, and data and backend architecture. Most engagements use more than one of them. A voice agent that books into a real calendar is also an integration project, and a product that falls over under load is a backend project before it is a prompt project.
Custom Software & Full-Stack Development
End-to-end web and backend engineering using React, Next.js, Python/FastAPI, and Node.js: the same stack used to ship live, revenue-generating platforms for FinTech, healthcare, and marketplace clients. You get a system that's architected to scale from day one, not a prototype that needs a rebuild the moment real users show up.
Best fit for
Founders and operators who need a real product built once, correctly, not a patchwork of contractors.
What's included
- Customer-facing web apps & internal admin dashboards
- Backend architecture, REST/GraphQL APIs, and database design (PostgreSQL, Redis)
- Mobile app builds from scratch (as delivered for SRN Trade AI)
- Cloud deployment & infrastructure on AWS (EC2, ECS), Docker, Supabase
AI Voice Agents & Conversational AI
Production-tested voice AI architecture covering call handling, scheduling, follow-up, and LLM-driven conversation design. This isn't a demo bot. It is the same architecture KeenCraft has led development on across live voice platforms like VoiceCake, Rawk.ai, and Dynaris. VoiceCake serves dental, healthcare, fitness, and mortgage clients around the clock.
Best fit for
Businesses losing revenue to missed calls, slow follow-up, or the cost of round-the-clock staffing.
What's included
- Inbound & outbound voice agents (Vapi, Retell AI, Twilio, Deepgram, ElevenLabs)
- LLM-powered conversational flows (LangChain, LangGraph) tuned for your business
- Latency & infrastructure tuning, proven to cut response time nearly 3x (900ms to 320ms on Rawk.ai)
- Front-desk automation across voice, chat, and email, with MCP-isolated agent tools (as built for Dynaris)
Automation & CRM / API Integrations
Deep integration experience across CRM platforms, marketing tools, and third-party APIs, including a multi-tenant CRM built for trades and local services and OAuth flows taken through official platform verification (Google Ads). If two systems need to talk to each other reliably and securely, this is the work.
Best fit for
Teams whose growth is capped by manual data entry, disconnected tools, or fragile spreadsheet workflows.
What's included
- Custom multi-tenant CRM: lead scoring, job pipeline, quotes, invoices, and a client job board
- CRM integrations: HubSpot, Salesforce, Zoho
- Third-party & platform APIs, including OAuth flows through official verification (Google Ads API)
- Email automation by stage, segment, or date, plus revenue attribution back to source
Data & Backend Architecture
Multi-tier caching, pipelines, and analytics-ready backends, built so products stay fast under load and the data users see stays trustworthy.
Best fit for
Teams whose product works but slows down, breaks, or gets expensive the moment it scales.
What's included
- Postgres + Redis caching tiers for high-traffic applications
- Vector search & retrieval infrastructure (Pinecone, pgvector) for AI features
- Latency-hardening and accuracy-improvement audits on existing systems
- Technical documentation: architecture overviews, API references, SOWs
Pricing and delivery
How much does custom software from KeenCraft cost?+
Every engagement is fixed-price. After a free strategy call you receive a Statement of Work with milestones and a total cost before any code is written. New work is scoped separately.
How long does a fixed-price software build take?+
Proposal turnaround is 2 to 5 business days. Build duration depends on scope and is written into the SOW. Work ships in QA-gated milestones rather than a single end-of-project dump.
Can KeenCraft build only an AI voice agent, not a full product?+
Yes. A voice-agent engagement can be the whole project: inbound/outbound calling, booking, follow-up, and CRM wiring, priced as its own fixed SOW.
Ready to build something that saves you money from day one?
Book a free 30-minute call. Tell me what you're trying to build or fix, and I'll tell you honestly whether KeenCraft is the right fit and what it would take.