
Most “agents” break on the second turn. We ship the parts that make them production-grade — tool-use, retrieval, guardrails, evals and observability — so they resolve tickets, book meetings and run workflows you can actually leave running.
REO Rank builds production-grade AI agents — support, SDR, RAG and voice — that take real actions through typed tools and MCP, shipped with retrieval, guardrails, evals and observability so they run unattended. The same team owns your technical SEO, so the agents are built to be cited by AI search too.
Start with the one that hurts most. Each links to how we scope, build and ship it.
Tool-use, function-calling, orchestration
Bespoke agents that reason over your data and take real actions in your stack via tool-use and function-calling.
How we build itDeflect tickets, keep the handoff clean
Support agents that resolve the repetitive tickets from your own docs and escalate the rest with full context.
How we build itQualify, enrich, follow up — 24/7
Agents that qualify inbound, enrich leads, draft personalised follow-ups and book meetings straight into your calendar.
How we build itAnswers with citations, not hallucinations
Retrieval-augmented assistants over your knowledge base that answer with sources and admit when they don’t know.
How we build itReal-time voice, low latency
Low-latency voice agents for inbound and outbound calls — booking, triage, qualification and support.
How we build itMulti-step automations across your tools
Agents and pipelines that run multi-step work across your tools — triage, data entry, reporting, back-office ops.
How we build itWire LLMs into your product & stack
Integrate LLMs and tool-use into your product or internal tools — including MCP servers that expose your systems to agents.
How we build itGuardrails, evals, observability
The safety layer: eval suites, guardrails, tracing and cost/latency monitoring that keep agents trustworthy in production.
How we build itNot a prompt in a box — a loop with tools, grounding and a safety layer around it.
Drag the sliders to your reality. This is the conversation we start with — then we scope the real number and the guardrails against your actual volume.
Rough estimate at 60% automation. We scope the real number — and the guardrails — against your actual volume before you commit a dollar.
Typed tool schemas and MCP servers so the agent can safely act in your systems.
Tuned chunking, hybrid search and re-ranking so answers are grounded and cited.
Input/output checks, PII and jailbreak filters, confidence-gated human handoff.
Task + regression suites so a prompt change can’t silently break behaviour.
Full request tracing plus cost, latency and quality dashboards.
Claude, GPT or open models — chosen per task against cost and latency.
Concrete workflows we ship — not a feature list. Each starts as a single scoped agent and expands once the numbers hold.
An agent that reads your order, returns and policy systems and closes tickets end-to-end — refunds, tracking, “where is my stuff” — handing off only the genuine edge cases. Teams typically deflect 40–70% of volume without dropping CSAT.
Agents that research an account, draft genuinely personalised outreach and keep your CRM clean — so reps spend their time in conversations, not tabs.
Grounded answers from your docs, wikis and tickets with citations — for a support team, a sales team, or the whole company — instead of pinging the one person who knows.
The tedious cross-system work — data entry, reconciliation, report generation, triage — handed to an agent that calls the same tools your team does, with a full audit trail.
Inbound and outbound voice that qualifies, schedules and answers — wired to the same tools and guardrails as your text agents.
Assistants and content structured to be cited by ChatGPT, Perplexity and Google’s AI answers — because the team that builds the agent also owns how you get found.
Every “AI agent” demos well. These are the reasons they don’t survive contact with real users, and what we build so yours does.
Most demos answer once and fall apart in a real conversation. We build explicit state, memory and turn-taking so the agent holds context across a whole thread — not just the opening prompt.
Ungrounded models invent policies, prices and order numbers. We ground every answer in retrieval with citations and gate low-confidence replies to a human, so it says “let me check” instead of guessing.
A bot that can only talk deflects nothing. We give agents typed tools and MCP so they read and write to your real systems — issue the refund, book the slot, update the record — inside your permissions.
Without evals and tracing, quality is a vibe. We ship regression suites, per-conversation traces and a cost-and-resolution dashboard, so you know exactly what it handled and what it cost.
Questions engineers ask
The things technical buyers check first.
Still have questions? Talk to a specialist
No account-manager buffer and no juniors learning on your budget — you work directly with the people who do the work.


Co-Founder & Product Officer, Head of AI / Data
14+ yrs engineering · AI agents, MCP & automation

Front-End Developer & SEO Specialist
MSc Data Science · front-end · technical SEO

Web & SaaS Engineer · DevOps
WordPress · custom web apps · SaaS · DevOps · technical SEO