Using Agent-Browser in Claude Code to Automate Zoho Books Workflows

Here is a demo of something I have currently been working on: Using Claude Code with Vercel's agent-browser for some browser automations in Zoho Books.

I have bundled majority of the automation into a client side IIFE. This led to a 18x cost-saving as shown below, though realistically I feel it must be around 10-12x.

A follow up to the demo demonstrates the advantage of being deterministic-first when building agentic systems. Post-demo: Claude code figured out how to batch the automation into a single run.

Following that, I made the batching a part of my own automation.

Token Consumption Report — 126 Imports (claude-sonnet-4-6)

─────── OVERALL ───────

Manual (4 txns) — 321 turns — $12.49

Batch (122 txns) — 441 turns — $20.44

Total (126 txns) — 762 turns — $32.93

─────── BATCH EFFICIENCY (per transaction) ───────

Turns Manual: 80.3 Batch: 3.6 → 22.2× cheaper

Input tokens Manual: 233 Batch: 11 → 22.0× cheaper

Output tokens Manual: 25,231 Batch: 1,093 → 23.1× cheaper

Cache read Manual: 5.05M Batch: 369K → 13.7× cheaper

Cache write Manual: 327K Batch: 10.8K → 30.3× cheaper

Cost per txn Manual: $3.12 Batch: $0.17 → 18.6× cheaper