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LangGraph and MCP Agents in Production · Claude 3.5 Sonnet Tool Use

AI Agent Development Company for Enterprise Automation

Senior AI agent engineers shipping autonomous agents and multi-agent systems with LangGraph, AutoGen, CrewAI, OpenAI Agents SDK, and Anthropic MCP. Claude 3.5 Sonnet and GPT-4o tool use, vector memory, eval harnesses, and human in the loop. NDA before brief. Source code in your repository from day one. ISO 9001 certified shop with 11+ years of production software experience.

4.9 / 5from 2,495 reviews
ISO 9001 Certified
  • 40+

    Production Agents Shipped

  • 11 yrs

    Shipping Software Since 2015

  • 350+

    Builds Across 35+ Countries

  • Top 1%

    Agent Engineer Vetting Bar

Your Trusted AI Agent Partner

AI Agent Development Built for Real Work, Not Demos

LangGraph State Machines, Claude and GPT-4o Tool Use, Production Discipline

Work with senior agent engineers who have shipped autonomous agents to production across sales, customer service, research, code review, and internal operations. From a single-task LangGraph agent with Claude 3.5 Sonnet to multi-agent CrewAI systems with MCP tools, vector memory, eval suites, and human approval workflows, we build agents that pass an eval gate every sprint and stay safe in production.

How Much Does AI Agent Development Cost?

Honest USD Rate Bands From an Indian Senior Team

Fixed-scope agent MVPs we ship come in between $25K and $60K. Production agent platforms with multi-tool calling, vector memory, eval, and observability fall between $80K and $250K. Enterprise multi-agent systems with audit, role based access, and human approval workflows start at $300K. Prefer a senior agent engineer on your team instead? From $2,000 per month, first week on us.

  • Single-Task Agent MVP

    One agent owning one workflow with a small tool set and a clear eval

    $25Kto $60K

    • One LangGraph agent
    • Up to 6 tools
    • Eval suite included
  • Most Common

    Production Agent Platform

    Multi-tool agent with memory, observability, and human in the loop

    $80Kto $250K

    • Vector memory + MCP
    • LangSmith + AgentOps
    • Human approval workflow
  • Enterprise Multi-Agent System

    Crew of coordinated agents, audit, role based access, SSO

    $300Kand up

    • CrewAI or AutoGen
    • Audit and RBAC
    • Temporal orchestration
  • Dedicated Agent Engineer

    A senior engineer on your team, monthly rolling

    $2,000per month

    • Senior, vetted
    • Monthly rolling
    • 7-day trial
What We Build

What can we build with AI agents?

Eight categories of AI agent development work, from a single LangGraph agent owning one task to multi-agent CrewAI crews coordinating across systems.

Reference Architecture

Which architecture do we use for AI agent development?

Six layers we wire together on greenfield AI agent development projects. Each layer is observable, testable, and bounded by guardrails.

Agent Loop

LangGraph state machine with ReAct or plan and execute pattern. Typed tool selection, deterministic recovery on failure, no hidden control flow.

Tools

Function calling with strict JSON schemas, Anthropic MCP servers, OpenAPI tools, Browser Use and Playwright actions. Allow lists on every external call.

Memory

Short-term working memory in state, long-term in Mem0 or Letta, semantic recall over Pinecone, Qdrant, Weaviate, or pgvector. Memory hierarchies you can audit.

Guardrails

Hard cost ceilings, rate limits, recipient and URL allow lists, output validators, fallback paths on tool failure. The agent cannot exit the rails you set.

Observability

LangSmith and AgentOps traces on every step, Helicone and Langfuse for spend, Arize for retrieval drift. Eval suite runs on every PR with Ragas and DeepEval.

Human in Loop

Approval checkpoints on high-impact actions via Slack and inbox. Full audit log of every tool call. Multi-agent coordination with explicit handoffs.

Every layer documented in your repository on day one

Delivery Process

How does our AI agent development process work?

From workflow audit to sustained tuning with eval gates every sprint and audit-friendly deliverables.

  1. Day 0 to 3

    Discovery and Workflow Audit

  2. 24 Hours

    SOW and NDA Signed

  3. Sprint 0

    Tool Inventory and Eval Baseline

  4. Every Sprint

    Two-Week Sprints with Eval

  5. Milestone

    Launch with Human in Loop

  6. Post-Launch

    Sustained Tuning

7-day No-Risk Trial

The first week is on us

Start with a brief
Engagement Models

What engagement models do you offer for AI agent development?

Transparent USD rate bands, rolling monthly cancel, no setup fees, no markup.

  • Hourly

    Pay only for hours used

    $30/hour

    Tracked weekly, billed monthly

    • Prompt and tool tuning
    • Eval suite authoring
    • Short surge work
    • No minimum commitment
    • Mutual NDA before brief
    Start Hourly
  • Most Popular

    Dedicated

    Senior AI agent engineer, full-time on your product

    $2,000/month

    Monthly rolling, cancel anytime

    • One engineer, only you
    • Embedded in your sprint
    • Reports to your stakeholders
    • 7-day no-risk trial
    • 48-hour replacement guarantee
    Get a Shortlist
  • Staff Aug

    Plug into your existing AI team

    $2,200/month

    Per-engineer monthly

    • Joins your standups
    • Your sprint, your tools
    • Your codebase, your repo
    • Scale up or down monthly
    • 48-hour replacement
    Augment Team
  • Fixed Scope

    Locked deliverables and timeline

    $25,000+ project

    Per-milestone payments

    • Best for agent MVPs
    • Locked scope upfront
    • Locked timeline
    • Eval gate acceptance
    • No surprise change orders
    Get a Quote
Frequently Asked

AI Agent Development FAQs Product Leaders Ask Up Front

Pricing, code ownership, evaluation, observability, human in the loop, MCP and custom tools, model selection, answered straight.

  • How much does AI agent development cost?

    Fixed-scope agent MVPs we ship start at $25,000 and ship in 6 to 10 weeks. Production agent platforms with multiple tools, vector memory, eval, and observability run $80,000 to $250,000. Enterprise multi-agent systems with audit, role based access, and human approval workflows start at $300,000. Or hire a dedicated senior AI agent engineer monthly from $2,000, first week on us.

  • How long does it take to build a production AI agent?

    A focused single-task agent MVP ships in 6 to 10 weeks. Production agent platforms with multiple tools, memory, eval, and observability take 12 to 20 weeks. Enterprise multi-agent systems run 5 to 9 months. The eval suite runs on every PR from sprint one and gates every release.

  • How do you make sure the agent is accurate and safe?

    A golden eval set is authored before the first prompt. Ragas and DeepEval scores gate every release. Guardrails on tool calls, hard rate limits, cost ceilings, allow lists on outbound URLs and recipients, output validators, fallback paths on tool failure, human approval on high-impact actions, and a full audit log of every tool call and message.

  • Can you connect the agent to our existing tools and APIs?

    Yes. Function calling with strict JSON schemas, custom Python tools, OpenAPI specs, and Anthropic MCP servers. We have shipped agents wired to Salesforce, HubSpot, Jira, GitHub, Okta, Stripe, Snowflake, Slack, and dozens of internal REST and GraphQL APIs.

  • What is the difference between an AI agent, a chatbot, and a workflow?

    A chatbot answers, an agent acts. Agents plan, choose tools, take actions in the world, observe results, and re-plan. Workflows execute fixed steps. Agents decide which steps to take. We use LangGraph state machines so the path the agent takes is observable, testable, and recoverable on failure.

  • How do you evaluate an AI agent before and after launch?

    Golden eval set with task-level success criteria. Ragas for retrieval quality, DeepEval and AgentBench for agent loop quality, custom evals for your domain rules. LangSmith and AgentOps traces in CI. Production sampled traces reviewed weekly. The regression suite blocks deploy if scores drop.

  • Do you support human in the loop and approval workflows?

    Yes. Every action with real-world impact, send email, post to CRM, write to a production database, can require human approval. We ship Slack and inbox approval UIs out of the box. Auto-approval thresholds can be raised as eval scores climb in production.

  • Do you use Anthropic MCP or custom tools?

    Both. MCP for GitHub, Slack, Postgres, filesystem, and other supported targets. Custom Python tools with strict JSON schemas for everything else. Tool selection routed through a typed function-calling layer so the agent cannot invent arguments or call tools it does not have access to.

  • What observability do we get into the agent in production?

    Full trace of every step, prompt, tool call, response, and token cost in LangSmith or AgentOps. Helicone or Langfuse for spend dashboards. Arize for drift on retrieval. Daily cost report, weekly trace review meeting, instant alerts on tool failure or runaway loops, and a published SLO on agent task success rate.

  • Claude or GPT for tool use, which model do you pick?

    Claude 3.5 Sonnet and 3.7 Sonnet are our default for tool use, function calling reliability, and long agent loops. GPT-4o is strong on vision and broad reasoning. Gemini 2.0 Flash is the cost play for high-volume light tasks. Llama 3.1 for on-prem deployments. We benchmark on your eval set and let the numbers decide.

  • Will you sign an NDA before I share my idea?

    Yes. Mutual NDA before any technical discussion. We can use our template or sign yours. Typically turned around within 24 hours. You can talk to a senior agent engineer the same day.

  • Will I own the source code and the agent prompts?

    Yes. Your GitHub, GitLab, or Bitbucket org owns the repository from day one. Our engineers push commits as named contributors. Prompts, tool definitions, eval sets, and trace data all live in your repo and your accounts. Full IP transfer in every SOW.

  • Can your AI agent engineers work in my time zone?

    Yes. Daily standup in your time zone. Overlap with US Eastern, US Pacific, UK, EU, UAE, and Australian timezones. Dedicated engineers shift their hours to match yours on long engagements.

  • Why should I hire Decipher Zone instead of a larger agency?

    Senior engineers only, no bait and switch. NDA in 24 hours. Code in your repository from day one. 7-day no-risk trial. ISO 9001 process discipline. Direct senior engineer access, no project manager filter. Transparent monthly pricing. 11+ years shipping software in production, 350+ builds across 35+ countries.

Free Agent Workflow Audit · Reply in 1 Business Day

Ready to Ship an AI Agent that Earns Its Tools?

Send a brief. A senior AI agent engineer reads it personally and replies within one business day with a free workflow and architecture audit. No sales call, no pitch deck.

  • Reply within 1 business day
  • Free workflow and architecture audit
  • Mutual NDA before brief
Free 30-minute consultation

Talk to senior developers, not salespeople.

Share your scope. A senior developer reviews it, walks you through the trade-offs, and sends a written summary after the call. NDA before any details are discussed.

  • Written estimate within 5 business days
  • Senior developer on the first call
  • Code stays in your repository
  • ISO 9001 certified shop
4.9 / 5from 2,495 reviews
350+ builds shipped

Talk to Senior Developers

Available

30 minute call. Written summary after. No pitch deck.

NDA signed before any project details are shared