AI integrations for small businesses, built around your data.

It means hooking your existing business data (CRM, accounting, scheduling, documents, email) into a private AI assistant — usually Claude — so you and your staff can ask questions, draft messages, run analysis, and automate routine workflows in plain English. The data stays yours; the AI only sees what you connect; the assistant lives behind your login. It's the opposite of dropping ChatGPT into the office and hoping it figures things out — Mainsail builds the connections so the AI actually knows your business.

ChatGPT Enterprise is a generic AI assistant with security guarantees. It still doesn't know your customers, your invoices, your project history, your inventory, or your SOPs unless you paste them in every time. Off-the-shelf vertical AI tools (Vertex, Salesforce Einstein, etc.) are templated — they do what their vendors prebuilt, not what your specific workflow needs. Mainsail's integrations are custom: connected to *your* data, designed around *your* workflow, owned by *you*. Most projects ship in 2–6 weeks.

Two-part: a one-time integration build fee (typically $1,500–$8,000 depending on data sources and use cases) plus a monthly retainer (typically $800–$5,000/mo) that covers AI usage costs (we pass through Anthropic / OpenAI billing at cost), ongoing maintenance, new use cases as they come up, and the assistant infrastructure. No long-term contracts; month-to-month after the first month. We quote the exact number on a 30-minute discovery call.

Anthropic's API (which powers Claude integrations) doesn't train on data submitted via their business tier — it's contractually excluded. Same with OpenAI's API enterprise tier. Mainsail builds integrations that route through these enterprise APIs only. Your data is never used to train the underlying model, never shared between accounts, and lives in your authorized integration only. We document the data flow in plain English in the engagement brief so you know exactly what's accessed and what isn't.

That's how most projects start. We pick the single highest-friction workflow in your business — the thing that costs your team the most hours per week — and build the integration just for that. Usually a 2–3 week build, $1,500–$3,000 one-time, and then $400–$1,200/mo. If it earns its keep, we expand. If it doesn't, you can stop after the first month with no further commitment.

If it has an API or a webhook (which essentially every modern business software does — QuickBooks, Salesforce, HubSpot, Procore, Toast, AppFolio, Gmail, Slack, every major CRM and PMS), yes. If it's older software without an API but has data exports (CSV, PDF, scheduled reports), yes — we just build a slightly different ingestion layer. The only hard 'no' is software that explicitly forbids automated access in its terms of service. Bring the list of tools you want connected to the discovery call and we'll tell you what's possible.

Three reasons. (1) Pricing — national AI consultancies start around $25K for a discovery phase before any code is written. Mainsail builds the actual integration for less than that. (2) Tooling — Mainsail's stack (Cloudflare Workers, Anthropic API, Astro frontends) is the same one we use to ship websites in two weeks; the AI work moves at the same pace. (3) You can pick up the phone and Max answers. The integration is owned by a person, not routed through a project-manager layer.

Discovery call → scoping doc → 2–3 weeks of build → live in your hands. Most clients start seeing time savings within the first month. Compounding wins (the team finds new ways to use the assistant, you add more data sources, the workflow expands) typically show up in months 2–4.