
AI Agent SaaS Products - Starter
The package
$899USD /project
Launch offer$58435% off for the first 5 clients
- Timeline
- 2-3 weeks
- Ideal for
- Founders validating an AI product idea who want paying users before building a full platform.
- Where I work from
- Rajshahi, Bangladesh · remote worldwide · UTC+6 · AI Agent Developer in Bangladesh — LLM Agents, RAG and Tool Calling
A focused AI agent wrapped in a clean SaaS shell — one job done well, with sign-in, billing, and a usage dashboard so you can charge from day one.
Key features
- Single AI Agent
- Tool Calling
- Auth & Billing
- Usage Metering
- Next.js Dashboard
01What's included
- One production AI agent (LLM + tool calling)
- Prompt design with an evaluation set
- User auth with email + Google sign-in
- Stripe subscription billing (1 plan)
- Per-user usage metering & limits
- Next.js dashboard
- Cloud deployment & uptime monitoring
02Not included
- Multi-agent orchestration
- RAG over private data
- Team/workspace features
- Model fine-tuning
Case studies
Shipped work like this
Projects built with the same stack and patterns.
Personal product · Marketing / Content SaaS
Contently AI — Multi-Model Social Content SaaS
AI‑powered social content built fast, published faster
- Pages built
- 42
- API endpoints shipped
- 12
- Monthly active users
- 3,200
Robbie Boyle · EdTech / Corporate Training
Virtual Client — Multi-Tenant AI Voice Coaching Platform
Teams rehearse live conversations against AI personas and get rubric-scored feedback.
- Practice sessions
- ~2,500
- Security tests
- 370+
- Collections hardened
- 8
Testimonials
What clients say
“This project was handled in an excellent way. The seller understood the task clearly. Progress updates were helpful. The final output was accurate and polished. Everything arrived as promised. Glad to recommend this seller.”
Alexi Denise
Individual client
“He successfully completed all my tasks quickly and with excellent quality.”
Imran Mohammed
“Great work. Great communication, and a quick turnaround. I'd definitely order again.”

Agrossen
How the engagement works
Fixed price in USD
The proposal states the total, the milestones and what is excluded before any work starts.
Milestone payments
Typically 40% to start, 40% at the mid-point demo and 20% on handoff.
You own everything
Source code in your own GitHub organisation and full IP assignment on final payment.
Pay the way you prefer
Wise, Payoneer, international bank transfer, or Stripe invoicing for cards.
Next step
Ready to get started?
Starting at $899 for this package
Launch offer$58435% off for the first 5 clients
Different scope or budget? Custom offers are welcome.
Related projects
Case studies built with the same stack and patterns.
Related reading
Costs, architecture and how-to guides for this kind of work.
Other tiers
Compare packages
ProfessionalRecommended
Multi-tenant AI SaaS with RAG and agent workflows
$2,499USD /project
Launch offer$1,62435% off for the first 5 clients
Start ProjectFull details and case studies- Timeline
- 5-8 weeks
- Ideal for
- Startups building an AI-first SaaS that needs to onboard teams, meter usage, and scale past the first hundred customers.
What's included
- Multi-step agent workflows with tool calling
- RAG pipeline (ingestion, chunking, vector search)
- Multi-tenant data isolation
- Team workspaces with roles & invites
- Stripe billing with 3 plans + usage add-ons
- Streaming chat & agent UI
- LLM cost & quality observability (tracing, evals)
- Guardrails, rate limits & abuse protection
- Admin panel
- CI/CD with automated tests
- 2 weeks post-launch support
Not included
- Mobile apps
- Custom model fine-tuning
- SOC 2 audit preparation
Enterprise
Multi-agent platform with SSO, evals and cost control
$3,999USD /project
Launch offer$2,59935% off for the first 5 clients
Schedule CallFull details and case studies- Timeline
- 10-16 weeks
- Ideal for
- Funded startups and product teams whose AI product has outgrown a single agent and now needs team accounts, governance and predictable running costs.
What's included
- Multi-agent workflows (planner and worker agents with handoffs)
- Model routing & fallback across OpenAI, Anthropic and Groq
- Advanced RAG (hybrid search, reranking, permission-aware retrieval)
- SSO through a provider (WorkOS or Clerk), audit logs & data-retention settings
- Automated eval suite that runs in CI and blocks regressions
- Background jobs & queues (BullMQ)
- Container deployment with autoscaling (AWS ECS, Fly.io or Render)
- Tracing, error tracking & cost dashboards
- Threat model & security checklist review
- Architecture decision records (ADRs)
- 30 days post-launch support
Not included
- Kubernetes cluster operations
- Third-party penetration testing
- Model training from scratch
- 24/7 on-call support