get_started works before you sign in, so you can ask what Finta does before you have an account. Every other tool asks you to sign in to Finta first, and your AI tool shows the sign-in when it needs it.
Tools read from Finta storage (requires Storage Mode). High-volume tools support filters and pagination via cursor parameters in the tool schema. Most tools are read-only; a small set of write tools let your assistant categorize transactions, manage your spending categories, manage manual accounts, and manage your budgets. Finta MCP never moves money or changes your bank connections or destination settings. Each tool is marked as read-only or as a write, so your AI client can ask you before anything changes your data.
Read tools
Good liability prompts:
- “What are my minimum payments this month?”
- “What’s the interest rate on my student loans?”
- “Show me all my debt”
Write tools
These tools change your data in Finta: categorizing transactions and managing the accounts and categories you’ve created. Rule tools and budget tools below can write too.
Write tools only affect data you manage yourself:
- Accounts. Only manual (user-created) accounts can be created, updated, or deleted, and their changes sync automatically to any connected destinations. An account synced from your bank or payment provider can only be renamed. Syncs keep your name, and the bank’s name stays alongside it as
institutionAccountName. Your destinations show the new name after their next sync. - Categories. Any category’s name, group, description, or type (income, expense, transfer) can be edited except Mercury categories, which are read-only and managed by the provider. Only manual (Finta-created) categories can be created or deleted. Category groups can be created, renamed and deleted; deleting a group never deletes its categories, and budgets set on the group itself are deleted with it. You can also change the category assigned to any transaction.
- “Create a manual mortgage account for my house at 6.5% interest with a $300,000 balance”
- “Update my manual credit card balance to $1,500”
- “Track my cash on hand as a manual account with $250”
Rule tools
Rules let your assistant set up automatic categorization that sticks. A rule has conditions (e.g. merchant name contains “Whole Foods”) and outcomes (set the category, set the merchant name, or hide the transaction). Rules apply to your stored transactions now, when you run them, and automatically as new transactions sync in.
A typical flow: the assistant calls
create_rule (using a category id from list_categories or create_category), then run_rules to backfill your history. When several rules match, the one with the lowest priority number wins. A transaction you’ve categorized by hand is never recategorized by a rule. If you limited the connection to some accounts, the rules it creates only apply to those accounts.
Budget tools
Set a budget for a category, then ask what’s left. Finta works out every number, so your assistant reports them instead of adding up transactions. The budgets guide explains plans, rollover, targets, and the envelope method.
Good budget prompts:
- “Am I on pace with groceries this month?”
- “Bump dining to $700 this month”
- “What did I spend last month that isn’t in my budget?”
- “How much is left in dining in my Business plan?”
- “Roll over what I don’t spend on car repairs”
- “Save for a vacation with $200 a month, a $1,200 target by December, and rollover on”
- “How much is Ready to Assign?”
- “Assign $400 to groceries”
- “Set aside $200 for my Visa”
- “How much do I have set aside for my cards, and how much do I owe?”
list_transactions only returns transactions from the accounts you granted. Status names any other accounts behind a total.