The request names Codat, whose Expense product is the first match: Codat's page describes ERP and accounting data integrations for financial products 1, and its Expense API actions create expense datasets and Partner Expense connections 11. Alternatives that handle expense data are Splitwise, which offers a create-expense action 14, and Frihet ERP, which manages expenses through its REST API and MCP server 15.

1. 1

   Codat Expense APIcodat.ioverified and signed

   Codat's Expense API provides standardized connections to customers' business systems, with actions to create expense-transactions datasets, create Partner Expense connections, and get company configuration 11.

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   official:API · Codat Expense API

   for agents: create-expense-dataset · create-partner-expense-connection · get-company-configuration

2. 2

   Splitwise APIsplitwise.comverified and signed

   Splitwise's Create Expense action creates a new expense, optionally in a group or with specific friends 14.

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   +23 community tools built for it

   for agents: create_expense

3. 3

   Frihet ERPfrihet.ioverified and signed

   Frihet's REST interface and MCP server manage invoices, expenses, clients and webhooks 15.

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   official:MCP server · Frihet ERPpackage · Frihet ERP+1 community tools built for it

   for agents: REST interface · frihet-mcp · MCP interface