Daily recap for May 29, 2026

Today we shipped three step-by-step AI tutorials for small businesses: a phone agent that dispatches field service jobs, automatic invoice extraction into QuickBooks, and spend controls that keep Cohere API bills predictable.

New tutorials

OpenAI Voice Agent for ServiceTitan Field Service Dispatch

Field service businesses miss after-hours emergency calls — this voice agent answers the phone, understands the caller’s job details using OpenAI and Deepgram, and creates a work order in ServiceTitan automatically. It handles the full dispatch flow, from initial call to confirmed job, and picks up where it left off if the caller calls back. No human operators needed for after-hours requests.

Read the tutorial → Download the code (zip)

Built with OpenAI, Next.js + Express, 111 tests, 99.36% coverage.

Vertex AI Invoice Extraction for SMB Accounting

If you’re spending hours typing invoice numbers and totals into QuickBooks, this pipeline can replace that work. It takes PDF invoices, extracts structured data using Vertex AI’s Gemini, repairs malformed fields with our structured-repair engine, routes low-confidence items for human check, and sends high-confidence transactions straight to QuickBooks. A batch CLI handles bulks of invoices; an API route handles on-demand processing. You’ll also track per-document costs so you know exactly what you’re spending.

Read the tutorial → Download the code (zip)

Built with Vertex AI, Express + CLI, 89 tests, 96.62% coverage.

Cohere AI Spend Control for Budget-Conscious SMBs

AI bills can surprise a small business — this system puts you in control. It wraps every Cohere API call with cost tracking, enforces per-tenant daily budgets, and automatically swaps to cheaper models like command-r when you’re close to the limit. You get a real-time dashboard of spending without changing your existing agent code. The tutorial shows how to set it up as a Next.js API or a standalone Express daemon, with Langfuse and Portkey for deeper observability if needed.

Read the tutorial → Download the code (zip)

Built with Cohere, CLI + Express, 130 tests, 97.09% coverage.

Browse the full catalog at reaatech.com/products.