Pilot gave away MCP write access to Xero, after doing the same for QuickBooks in August.

Meridian's free connector lets Claude, Cowork, Codex or ChatGPT write journal entries, invoices, bills and payments, bulk-create invoices from spreadsheets, and categorize transactions from PDF card statements. Read-only or read-write per company, no Meridian account required, under three minutes to set up. Giving away agent write access to both big SMB ledgers points at the ledger UI, not the ledger, as the commoditized part.