Build custom Claude agents side-by-side with expert human engineers. Integrate with your existing tools. One-click deploy to WhatsApp, SMS, email, Slack, Teams, Telegram or your website. Made for small business owners.
Most tools call themselves AI agents. Most are chatbots with a new label. A real AI agent built on a frontier model like Claude understands context, takes action, builds its own integrations with your tools and finishes the task. That is the difference between a form your customer fills out and an assistant that does the work. A chatbot can tell a customer how to cancel a booking. An agent cancels the booking, updates your calendar, refunds the card and sends the confirmation, all while the customer is still on WhatsApp.
Customer service, appointment booking, lead qualification, executive assistance, sales, marketing, coding, data analysis. One agent, trained on your workflows, reading and writing to your actual systems. Deploy to WhatsApp, SMS, email, Slack, Teams, Telegram or your website with 1 click.
Small business owners benefit disproportionately from agents compared to larger companies. A solo founder, a small team of five, a family-owned business: every hour spent on repetitive work is an hour not spent growing. An agent that handles the repetitive layer is the equivalent of hiring a new employee, except it starts today, works 24/7, never forgets and scales with you. That is why our customer base is mostly small business owners and professionals rather than enterprise.
Your AI agent handles customer questions on WhatsApp, SMS, email, Slack and your website around the clock. Understands context, resolves issues and escalates when needed.
Automate calendar, email, notes, expense tracking, invoicing and reporting. Your agent integrates with your existing systems and handles the work an assistant or bookkeeper would.
Qualify leads, follow up automatically, draft outreach, run re-engagement campaigns. The agent reads your CRM and writes back to it, so the funnel keeps moving without anyone watching.
Pull insights from your data, surface trends, dispatch jobs to the right people, generate reports on demand. Specialized agents for every role in your business.
Most business owners do not need another app, they need an assistant. Someone who handles the calendar, drafts the follow-up email, reminds you about the proposal due Thursday and books the meeting without three back-and-forths. Modassembly gives you that assistant as an AI Admin through WhatsApp, SMS, Slack, Teams or Telegram, the channels you already check constantly.
You message it the way you would message a human executive assistant. “Move my 3pm to Friday and tell Sarah why.” Done, and the email is drafted for your approval. Instead of context-switching between six tools to get one thing done, you text your AI Admin and it does the context-switching. Founders and solo operators use it for inbox triage and meeting prep. Sales teams use it for lead qualification and proposal drafting. Operations teams use it for vendor follow-ups and recurring reports. The minutes saved per interaction are small; the hours saved per week are not.
An AI agent is only as useful as the systems it can read and write to. Modassembly agents integrate with your existing stack through APIs, webhooks, database access and the Model Context Protocol (MCP). CRM, calendar, e-commerce, payments, helpdesk, internal databases, custom internal services. The agent does not replace your tools, it operates them on your behalf.
Common integrations include Google Calendar, Gmail, Outlook, Slack, Teams, HubSpot, Salesforce, Pipedrive, Notion, Shopify, Stripe, WhatsApp Business, Twilio and custom internal systems. Built with an expert human engineer in your group chat, the integrations get architected live. On Custom AI Fleet plans, our team architects the integration layer end to end, including authentication, permissioning and auditability, and exposes your internal systems as MCP servers so the agent can use them like first-class tools.
The point is seamless integration with the workflows you already run. No rip-and-replace, no parallel system to maintain, no two-stage rollout. Your agent shows up inside the systems your team already uses and starts moving work forward inside them.
One agent is the start. AI Workforce ships an AI Admin coordinating 3 specialized AI Employees (customer service, executive assistant, bookkeeper, sales agent, marketing agent, data analyst, web developer, dispatcher and more). Custom AI Fleet adds unlimited employees and bespoke orchestration. Each agent has its own role, its own tools and its own memory, and they share context when they need to. Together they behave as a small virtual team specialized for your business.
In practice this means a customer message can land in the customer service agent, get triaged into a refund request, get handed to an operations agent that calls Stripe and updates your order system, then get summarized back to the customer in a single thread. None of those steps require a human, and the customer sees one continuous conversation.
Modassembly builds on Claude because Claude is currently the strongest model for agentic work. Anthropic's models lead on tool use, long-horizon planning and code generation, which is exactly what real agents need to do reliably in production. Claude reasons through ambiguity, follows long instructions without getting lost, calls tools correctly and maintains a tone that does not embarrass you in front of customers.
We build on the official Claude Agent SDK and handle the production engineering on top: Anthropic API integration, Model Context Protocol (MCP) servers, tool orchestration, memory, monitoring, deployment and on-call. You get the frontier model wired into your business, without the months of integration work it would otherwise take.
An AI agent takes the shape of the business it serves. Here are the shapes we see most often across the small business owners we work with.
Quote generation against inventory, order taking on WhatsApp, price list updates, cross-referencing supplier lists with stock levels, delivery scheduling. One of our customers replaced a 2-to-3 day quoting workflow with a 2-hour one using an agent that reads their inventory and supplier catalog directly.
Booking and reservations, pre-arrival communication, upsells and add-ons, post-stay follow-up, review solicitation. Agents triage weekend and evening inquiries when the owner is off the clock, turning late-night interest into confirmed bookings instead of missed opportunities.
Client intake, proposal drafting from templates, time tracking and status updates, document requests and retrieval, routing urgent vs routine asks. Turns WhatsApp or email into a functional client portal without anyone installing software.
Order tracking, returns and exchanges, product recommendations, cart recovery, post-purchase follow-up, review and UGC solicitation. The agent plugs into your commerce platform, so it sees live inventory and order status instead of guessing.
Appointment scheduling and changes, intake forms, reminders and follow-ups, insurance and pricing questions, no-show reduction. Front-desk staff stop spending the day on phone calls and can focus on clients who are physically in front of them.
Outbound qualification, demo booking, product-question support with links to docs, churn-risk outreach, expansion-opportunity triage. WhatsApp outperforms email for outbound in LATAM and many EU markets, and your agent works every hour your prospects are awake.
If you want a custom AI agent, you have five main paths. Here is how Modassembly compares to each.
Decision trees, drag-and-drop flows, canned responses. Fine for very narrow use cases, brittle everywhere else. AI agents handle ambiguity, variation and multi-step conversations without you having to script every branch. And when you need to change behavior, you describe the change in plain language instead of rewiring a flowchart.
Zapier, Make and similar tools are great at chaining predefined triggers and actions. They break down when the workflow needs judgment, language understanding or a decision based on context. AI agents take over the part that no-code cannot do: interpret a messy incoming request, decide what to do, then execute.
ChatGPT and similar general-purpose AI tools are powerful but generic. They do not know your business, your customers, your systems or your rules, and they cannot take action on your behalf. Modassembly agents are shaped around your specific business and wired to your specific tools, so they actually move work forward instead of just chatting about it.
Maximum flexibility and maximum engineering work. You own prompts, tool orchestration, memory, session management, messaging integration, carrier compliance, deployment, monitoring and on-call. Modassembly gives you the same flexibility with all of those concerns handled, so you focus on the business logic instead of the plumbing.
Bespoke work, bespoke price tag. Works for enterprise, often overkill for small and medium business. Modassembly is a specialist shop built specifically for small business owners: we bring the architecture and best practices from larger-scale deployments without the enterprise invoice.
“We cross-reference food supply lists with our inventory to build cost-benefit analyses for clients. This task used to take me 2-3 days. With AI, I can do it in 2 hours.”
Build your agents side-by-side with an expert human engineer inside a WhatsApp, SMS, Telegram, Slack or Teams group. We architect, build and ship with you, not from a template.
Start your free trial14-day free trial with $20 in AI credits
An AI agent for business is a custom-built AI that handles real tasks for your company: customer service, appointment booking, lead qualification, executive assistance, sales, marketing, data analysis and more. Modassembly builds AI agents powered by Claude and deploys them to WhatsApp, SMS, email, Slack, Teams, Telegram or your website with 1 click. Unlike a chatbot, an agent can read and write to your systems, make decisions and complete multi-step work on your behalf.
A chatbot follows scripts. Input matches a rule, output returns a canned response. An AI agent powered by Claude understands context, makes decisions and takes action. It reads from your CRM, writes to your calendar, updates records in your database, calls your APIs, runs multi-step workflows, and remembers context across a conversation. Chatbots explain how to do something. Agents do it.
You build it side-by-side with an expert human engineer inside a WhatsApp, SMS, Telegram, Slack or Teams group. We architect your custom Claude agent with you live, write the integrations with your tools and systems, and ship it to WhatsApp, SMS, email, Slack, Teams, Telegram or your website with 1-click deployment. Available on Vertical AI Employee (first month free, then $1/minute) and AI Workforce (priority, $0.75/minute, first month free). Don't want to build it yourself? Our team designs, builds and deploys your AI workforce end to end.
See the pricing section above for current plans. Vertical AI Employee starts at $38/month and includes an AI Admin plus 1 dedicated AI Employee with 1-click deployment to WhatsApp, SMS, your website or Telegram. AI Workforce starts at $85/month and adds 3 more AI Employees, agent-to-agent communication and deployment to email, Slack, Teams and more. Custom AI Fleet is let's-talk pricing for unlimited agents. Every plan includes a 14-day free trial with AI credits at face value (no markup).
Absolutely. Modassembly is built specifically for small business owners and solopreneurs. Deploy to WhatsApp or SMS with 1 click and let an expert human engineer architect the agent with you live. No engineering team, no servers to manage, no infrastructure to maintain. Plenty of our customers are one- or two-person operations running agents that handle the work of an additional employee.
An AI agent can handle customer service 24/7, manage and book appointments, qualify leads, run sales follow-ups, automate executive assistance and back-office tasks, analyze data and surface insights, write code to extend its own capabilities, build internal tools, orchestrate other agents and more. Each agent is custom-built for your specific workflows. You tell it what you need, it learns your systems, it does the work.
Vertical AI Employee deployments go live the same day. You sign up, your AI Admin sets up your account and walks you through configuring your agent and connecting your first tools, then deploys it to WhatsApp, SMS, Slack, Teams or your website with 1 click. Custom AI Fleet plans involving deeper integration, multi-agent architectures or legacy systems typically take one to four weeks with our engineering team, depending on scope.
No. Modassembly handles the engineering. You bring the business knowledge. You build the agent side-by-side with an expert human engineer in a WhatsApp, SMS, Telegram, Slack or Teams group, live. If you can describe what you want in plain language, we handle the rest. For Custom AI Fleet plans, our team does the technical work end to end.
Agents connect to your tools through APIs, webhooks and database access. Common integrations include Google Calendar, Gmail, Slack, Teams, HubSpot, Salesforce, Shopify, Stripe, WhatsApp Business, Twilio and custom internal systems. Built with an expert human engineer in your group chat, the integrations get architected live. On Custom AI Fleet plans, our team architects the integration layer around your stack and handles authentication, permissions and data access.
Yes. AI Workforce ships an AI Admin coordinating 3 specialized AI Employees, and Custom AI Fleet adds unlimited employees and bespoke orchestration. Agents can pass work between each other, share a common memory and operate as a small virtual team specialized for your business.
Yes. Modassembly does not sell, share or train on your business or customer data. Agents run in a managed environment with scoped access to your systems, so they only read and write what they are authorized to touch. For Custom AI Fleet plans we can further scope data access, redact sensitive fields and align with compliance frameworks like GDPR.
Yes. We build every custom AI employee on the Claude Agent SDK, the official framework from Anthropic for autonomous Claude agents. Your agents inherit the reasoning, tool use and long-horizon work capabilities of Claude directly, and we add the production integrations, channel deployment and managed service around them.
Model Context Protocol is an open standard from Anthropic for connecting AI assistants to tools, data sources and systems. Modassembly builds on MCP, so your agent can use standard MCP servers and tools out of the box, and we can expose your internal systems as MCP servers for the agent to use. This keeps your setup interoperable with the wider Claude ecosystem.
Yes. Your agent responds in dozens of languages, including English, Spanish, Portuguese, French and more. It detects the language automatically and replies in kind. This is particularly useful for solo operators and small teams serving international or bilingual customer bases out of a single agent.