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home / services / AI Agent Development

AI Agent Development,
Built for Production

Hire AI developers who build autonomous agents that replace your most expensive manual workflows: invoice processing, lead qualification, support triage, compliance checks. Systems that integrate into your stack, run 24/7, and return measurable ROI within 30 days.

OpenAI Agents SDKLangGraphCrewAIClaude MCPGoogle ADKPinecone RAG
85%
Workflow Automation Rate
Manual tasks eliminated on average
<800ms
Agent Response Latency
For multi-step tool-use chains
90%
Lead Discovery Time Cut
Measured on our B2B prospecting agent build

Software that does the work, not software that reminds you to do it.

If your team spends its days chasing invoices, qualifying the same kind of lead over and over, answering the same support questions, or checking documents against a rulebook, that work is predictable enough to hand to a machine. An AI agent is simply a program that does the whole job start to finish, rather than a tool your staff has to sit and operate.

The difference between an agent and a chatbot matters here. A chatbot answers a question. An agent reads your systems, makes a decision, does the task, and writes the result back where it belongs. Nobody has to copy anything from one screen into another.

Most businesses looking to hire AI developers do not actually want AI. They want a specific job to stop consuming a specific number of hours every week. That is the conversation we start with.

What you actually get

  • One expensive manual workflow picked, built, and running in production
  • It connects to the systems you already use, so nothing changes for your team
  • A written before-and-after showing exactly what it saved you
  • Documentation and handover, so you are never locked in to us
  • Thirty days of support after it goes live

See the complete agentic ecosystem we built for a 40-doctor network: a voice agent, practice management system, patient forms, payments and team ticketing, with 85% of routine bookings now needing no human.

Independently listed: Featured in Goodfirms' Top AI Companies in Florida (2026)

Everything below this point is the technical detail: the frameworks, models, and architecture we use. If that is not your area, skip it and send us a note instead.

Seven agent engineering capabilities.

Each built on the production frameworks that power real business workflows — not demos. We select the right framework for your use case, not the one we happen to prefer.

01

OpenAI Agents SDK & Swarm Systems

We build multi-agent systems using the OpenAI Agents SDK — the production-ready evolution of OpenAI Swarm. These systems orchestrate teams of GPT-6.1 Sol and GPT-6 Luna agents that delegate tasks, enforce guardrails, and execute parallel workflows with full tracing via LangSmith.

  • Multi-agent handoff orchestration
  • Built-in guardrails & tracing
  • Compatible with 100+ LLMs
02

Anthropic Claude Agent & MCP Integration

Using the Anthropic Claude Agent SDK alongside the Model Context Protocol (MCP), we build agents that natively connect to your live business tools like Notion, Salesforce, and internal APIs. Claude Fable 5.1 agents handle complex, multi-session workflows that previously required entire teams.

  • Native MCP server connections
  • Claude Fable 5.1 multi-session memory
  • Slack, Asana & Jira integrations
03

LangGraph Stateful Agent Workflows

For complex, decision-tree workflows requiring conditional logic and rollback capabilities, we engineer with LangGraph. Its graph-based execution model maintains explicit state over long-running processes, enabling agents to loop, retry, and adapt in real time across your enterprise systems.

  • Stateful multi-step execution
  • Conditional branching & retry logic
  • Production deployment via LangGraph Cloud
04

CrewAI Role-Based Agent Teams

We design CrewAI multi-agent systems where distinct agents play specialised roles: Researcher, Analyst, Writer, and QA. This crew-based approach mirrors real team structures and is ideal for content pipelines, market research automation, and sales workflow orchestration.

  • Role-based agent specialisation
  • Parallel task execution
  • Integration with LangChain tools
05

Google ADK & Vertex AI Agents

For enterprises within the Google Cloud ecosystem, we build with the Google Agent Development Kit (ADK) backed by Gemini 3.7 Flash and Gemini 3.1 Pro. ADK enables hierarchical agent compositions and custom tool execution at cloud scale via Vertex AI Agent Engine.

  • Gemini 3.1 Pro / 3.7 Flash models
  • Vertex AI production deployment
  • Hierarchical agent compositions
06

On-Premise & Private Cloud Agents

When data cannot leave your environment, we deploy agents using open-weight models like Llama 4 or Mistral Large running on your own GPU infrastructure. Combined with a local Pinecone or pgvector RAG store, your agents operate completely air-gapped.

  • Llama 4 & Mistral Large deployment
  • Local vector DB (pgvector / Qdrant)
  • Zero data egress guarantee
07

SKILL.md Agentic Engineering

We lead the shift toward agentic competence with the 2026 SKILL.md open standard. By packaging workflows into modular, reusable skills, we ensure your agents are hyper-specialised, portable across frameworks, and context-efficient via progressive disclosure of expert knowledge.

  • Standardized SKILL.md packaging
  • Progressive disclosure architecture
  • Cross-framework skill portability

What we build this on.

The platforms and models behind this service. We are vendor-neutral: each piece is chosen because it is the right fit for the job, and we move you when something better ships.

Foundation models
Claude Fable 5.1 / Opus 5.5 / Sonnet 5.5GPT-6 (Astra / Sol / Luna)Gemini 3.1 Pro / 3.7 FlashLlama 4Mistral LargeGrok 4.6DeepSeek V3Self-hosted open models
Agent frameworks
OpenAI Agents SDKAnthropic Model Context Protocol (MCP)LangGraphLangChainCrewAIMicrosoft Semantic KernelPydantic AI
Workflow automation
n8nMakeZapierWorkatoUiPathMicrosoft Power AutomateTemporal
Data, RAG & search
PineconeWeaviatepgvectorQdrantLlamaIndexFastAPI ingestionSupabase
Business systems we integrate
HubSpotSalesforcePipedriveZohoGoHighLevelZendeskIntercomShopifyStripeSlackMicrosoft TeamsNotionAirtableGoogle WorkspaceMicrosoft 365QuickBooksXeroServiceTitanJobberClioSAPWhatsApp Business
MLOps & observability
LangSmithWeights & BiasesArize AIAWS SageMakerGoogle Vertex AIAzure ML

New models ship constantly. Keeping your systems current as they do is part of the retainer, not a change request you get billed for.

Agents that run in production, not just in demos.

We combine the OpenAI Agents SDK, LangGraph, and Anthropic MCP to build agent systems that integrate deeply, scale reliably, and deliver documented ROI in weeks.

6
SDK frameworks mastered
12
Agent systems in production
2–4 wks
MVP to production
how an agent runsWhat happens between a trigger and a committed action
Triggerwebhook, queue or schedule
Planmodel decides the steps
Tool callsyour APIs, guardrailed
Verifychecks before commit
Commitwritten and traced
The execution path shared by every framework on this page. Packets travel the wires continuously.
choosing a frameworkWhere each framework is actually strongest
Multi-agentStateful flowsTool ecosystemGuardrailsTracingTime to ship
Our own selection criteria, scored across the dimensions that decide the choice on a real project.

What an agent replaces, priced both ways.

An agent that takes over three hours of skilled work a day, with 30 minutes a day of human oversight left on the automated side, because a production agent still needs someone reviewing escalations and logs.

With automation
By hand
Hours a year, one workflow
125 hours of oversight
750 hours
Cost of those hours at £50 an hour
~£6,250
~£37,500
Three workflows on the same foundation
375 hours, ~£18,750
2,250 hours, ~£112,500
Payback on a £40,000 department-level build
About 15 months for one workflow, far faster for three
n/a

Assumptions: three hours of work a day over 250 working days, valued at a fully loaded £50 an hour, with 30 minutes a day of human oversight. Later agents reuse the integrations the first one paid for, which is why the payback shortens as workflows are added. Run your own figures through the hire versus automate calculator →

We build it, then we keep it running.

What we deliver does not get handed over and forgotten. For one monthly fee we run it, fix it, adjust it, and move it onto newer AI models as they ship. No separate maintenance contract, no charge every time you want something changed.

We run what we built

Monitoring, alerting, and fixing it when something upstream changes.

Updates are free

Small changes and tweaks carry no development fee. You ask, we do it.

Model upgrades included

We move you to newer models when they ship. No migration fee.

Fixes aren’t billable

If something we built breaks, repairing it is not a new invoice.

Support on your channel

Slack, Teams, WhatsApp, email. Priority response under four hours.

New automation every sprint

Each month adds working automation, so the return compounds.

If we built it, keeping it working and keeping it current is already paid for.

Frequently asked questions.

What is an AI agent development service, and how does it work?

An AI agent development company takes one job your team does by hand, such as chasing invoices, qualifying leads or answering routine support requests, and builds software that does that job end to end inside the systems you already use. It works in three steps: we map the workflow and price it, we build and test the agent on your real data, then we run it alongside your team until the numbers prove it out. You get a fixed price before any build starts.

Do you build AI agents for small businesses, or only enterprises?

Both. Most of our clients are small and mid-sized businesses that start with one $5,000 pilot on one workflow. Enterprise clients usually start the same way, then extend the agent across departments once the first one has paid for itself. The size of the company changes the integrations and the compliance work, not the approach.

What is an AI agent, and how is it different from a chatbot?

An AI agent is an autonomous software system that can plan, make decisions, and take actions across multiple tools and systems to complete a goal. Unlike a chatbot that only responds to messages, an AI agent can read your CRM, update your project management tool, send emails, query databases, and orchestrate multi-step workflows independently. We build agents using OpenAI Agents SDK, LangGraph, and Claude MCP that integrate directly with your business tools.

Which AI agent framework should I use: OpenAI Agents SDK, LangGraph, or CrewAI?

It depends on your use case. OpenAI Agents SDK is ideal for multi-agent orchestration with built-in guardrails and tracing. LangGraph excels at complex, stateful workflows with conditional branching and retry logic. CrewAI is best for role-based agent teams that mirror real team structures. Claude MCP is strongest when you need agents that natively connect to live business tools like Slack, Notion, and Jira. We evaluate your requirements and recommend the right framework, or a combination.

How long does it take to build and deploy a custom AI agent?

A focused single-agent MVP typically takes 2–4 weeks from kickoff to deployment. More complex multi-agent systems with multiple tool integrations, custom RAG pipelines, and production monitoring usually take 6–10 weeks. Every engagement starts with a paid discovery phase where we map your workflows and deliver a scoped implementation plan before building.

How much does AI agent development cost?

Almost everyone starts with our $5,000 pilot: one fixed-scope workflow, built end to end, with the before-and-after numbers measured. That is the entry point for every service we offer. If the pilot proves out and you want a full build, a typical single-agent system runs $15,000–$25,000, and multi-agent enterprise systems with custom RAG, monitoring, and compliance requirements range from $40,000–$100,000+. You always get a fixed price before committing to a full build.

Can you build AI for my whole team, not just one agent?

Yes, and for most businesses past their first automation that is the better investment. For a 40-doctor healthcare network we built a voice agent together with the system it runs on: a practice management system with an admin dashboard and a private diary for each doctor, per-doctor schedule overrides and patient forms, payments during the call, and an internal ticketing system where staff raise tasks for each other. Because everything shares one set of records, each new component costs less than the last. We still start with one workflow, priced and measured, before building outward.

Is my data secure when using AI agents?

Absolutely. For sensitive environments, we deploy agents using open-weight models like Llama 4 or Mistral Large running on your own infrastructure with local vector databases — zero data egress. For cloud deployments, we use Azure OpenAI Service or AWS Bedrock with encrypted data at rest and in transit, audit logging, and PII redaction pipelines. All solutions align with SOC 2, HIPAA, and GDPR frameworks.

LIMITED PILOT SLOTS EACH MONTH

Thirty minutes.
We'll tell you exactly
where your ROI is.

No sales deck. No 50-page report you have to pay for before anything gets built. Just a direct conversation about which of your workflows are costing the most and whether AI can fix them. If there's no compelling answer, we'll say so. And it's a conversation with Kash, our founder, not a rep reading from a script, because the person who built this business is the one who should understand yours.

Book a strategy call ->
info@valuestreamai.com - operating across US + UK