Discovery Sprint
$4,500 fixed
For teams that need the right architecture and scope before committing to a build.
- Architecture diagram and scoped build plan
- Eval harness scaffold and recommendation memo
- Two strategy calls with async Slack or email
Pricing
Clear scope before code.
404 Technologies takes a small number of AI-native builds each year. These ranges set the floor for serious work: agent systems, LLM products, SaaS surfaces, MCP servers, and the runbooks that keep them alive.
At a glance
Pricing at a glance.
| Engagement | Price (USD) | Timeline |
|---|---|---|
| Discovery Sprint | $4,500 fixed | 1 week |
| Agentic Build Engagement | From $25,000 scoped | 6-10 weeks |
| AI Systems Build | From $40,000 scoped | 8-14 weeks |
| Full-Stack SaaS Build | From $60,000 scoped | 10-16 weeks |
| MCP Server Development | From $12,000 per server | 2-4 weeks |
| AI Coding Tools Advisory | $3,500 fixed | 1 week |
| Post-Build Retainer | $4,000-$12,000 / month | 3 month minimum |
Engagements
Pick the smallest useful commitment.
Every build includes source ownership, a production deployment path, weekly demos, written async updates, handoff docs, and a 30-day post-launch support window.
Agentic Build Engagement
From $25,000 scoped
Production AI agents trained on your operating model, with retrieval, evals, and permissioned tool access.
- Hermes briefing agent or OpenClaw operations agent
- Private knowledge base and retrieval index
- Weekly eval review, runbook, and handoff docs
AI Systems Build
From $40,000 scoped
LLM applications with model routing, fallback paths, structured outputs, and observability.
- Voice, SMS, web, or operator-facing AI surfaces
- Multi-provider routing across Claude, OpenAI, and fallback models
- Dashboards, retries, traces, and on-call runbook
Full-Stack SaaS Build
From $60,000 scoped
Production SaaS foundations for funded teams shipping AI-native product surfaces.
- Auth, billing, multi-tenancy, admin tooling, and deploys
- Next.js, Postgres, Stripe, Vercel, Claude/OpenAI integrations
- Sentry or OpenTelemetry observability baseline
MCP Server Development
From $12,000 per server
Typed MCP servers that expose internal systems to Claude Code, Claude Desktop, or agent runtimes.
- Tool definitions, auth, observability, and docs
- Claude integration testing and edge-case coverage
- Hosted or self-hosted handoff
AI Coding Tools Advisory
$3,500 fixed
For engineering leaders rolling out Claude Code, Cursor, Codex, or agent-native team workflows.
- Custom setup, skills, slash commands, hooks, and workflow document
- Evaluation rubric for code-agent quality
- Team adoption guidance grounded in your repo shape
Post-Build Retainer
$4,000-$12,000 / month
For teams running production agents without an in-house AI engineer.
- Eval reviews and prompt versioning
- Model updates and regression monitoring
- SLA based on agent count and support window
Fit
The lab is intentionally narrow.
The best engagements have a real operator, a clear business constraint, and enough urgency to ship the working system.
Strong fit
- Custom AI agents with private knowledge and permissioned tools
- Production LLM workflows for SaaS, ops, kitchens, or support
- AI-native frontend rebuilds with measurable product goals
- MCP servers for internal systems and coding-agent workflows
Out of scope
- Pure marketing or content production
- WordPress, Webflow, and no-code consulting
- One-off prompt fixes under $3,500
- Training datasets for model fine-tuning
Terms
Simple enough to start.
Prices are in USD. International clients are welcome. Discovery sprints are invoiced upfront; builds start with a signed SOW and deposit.
- Deposit
- 50% on signed SOW
- Balance
- Milestone delivery or net-15
- Ownership
- You own custom source code
- Updated
- June 14, 2026
Common questions
Do clients own the source code?
Yes. Clients own all custom source code on day one, and production deploys run on client-owned infrastructure.
How many engagements does 404 Technologies take?
404 Technologies takes 5 to 8 client engagements per year and usually opens 2 to 3 discovery sprint slots per quarter.
What is out of scope?
Pure marketing production, WordPress, Webflow, no-code consulting, one-off prompt fixes under 3500 USD, and training datasets for fine-tuning are out of scope.