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Banco PAN MCP

openfinance_list_accounts

Read-onlyIdempotent

Returns accounts for a bank connection: BANK (checking/savings) and CREDIT (credit card) with balance, number, type, subtype, bankData, and creditData. Also returns bank (the brand/connector name like 'Nubank Empresas' — same shown in the dashboard UI) and connector_id. Note: each account's name is the legal entity that issues the account (e.g. 'Nu Pagamentos S.A. - Instituição de Pagamento'), which is not the same as the brand — when referring to the bank in user-facing text, use bank. OMIT item to list accounts across ALL linked banks at once — the response aggregates every connection's accounts into results, each row tagged with its own bank/connector_id/item_id (use this when the user asks for 'my accounts/cards' without naming a bank). Pass item to target a single bank (response carries bank/connector_id/item_id at the root). CREDIT (credit card) balance: its meaning is CONNECTOR-DEPENDENT — some banks report the current open-bill partial, others the full revolving/installment debt — so do NOT treat balance as 'this month's bill'. The open billing cycle is defined by creditData.balanceCloseDate (when it closes) / balanceDueDate (when it's due). For a standardized open-bill amount and total debt that mean the same across connectors, use openfinance_list_credit_card_bills (open_bill + total_pending_debt, derived from PENDING transactions); closed bills come from that same tool's results. A CREDIT row may carry creditData.usedAmount (how much of THIS card's limit the bank reports as consumed) and a balance_notice. balance_notice means balance came back 0,00 while the bank's own payload indicates an outstanding amount — some issuers never fill the card's consolidated balance field. When it is present, do NOT tell the user the card has nothing to pay: read the amount from openfinance_list_credit_card_bills instead. bankData.closingBalance and automaticallyInvestedBalance are provider-reported extras that can LAG right after a connection is first created: the bank may publish the connection as UPDATED before those derived fields converge, so they can briefly carry a stale/phantom value that a force sync (openfinance_force_sync) reconciles. The account's own balance is authoritative — treat those two as hints until they agree with it. May include a provider_incident block when the Open Finance provider has an OPEN incident affecting a bank in this response: balances and credit limits may be unreliable (incomplete or wrong, e.g. a credit limit near 1,00) even with the connection UPDATED, until the provider recovers. Do not present those values as real. May include an identity_notice when the SAME account (same number) arrives via two connections stamped with DIFFERENT owner/taxNumber: in Open Finance those fields reflect each connection's CONSENT HOLDER (e.g. a joint account consented by both holders), so dedupe by account number before summing balances and do not attribute ownership by owner/taxNumber for those accounts.

Bulk support: accepts item_ids for batched execution.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
itemNo
typeNo
item_idNo
item_idsNo

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Added
  2. Removed
  3. Changed2 schema fields changed
    • addedInput schema / properties / item_id
      Added value: +{
      +  "type": "string"
      +}
    • addedInput schema / properties / item_ids
      Added value: +{
      +  "items": {
      +    "type": "string"
      +  },
      +  "type": "array"
      +}
  4. Added
  5. Removed
  6. First observed

TDQS

A4.8/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already provide readOnly/idempotent/non-destructive hints, and the description adds significant non-obvious behavior: connector-dependent `balance` meaning, `balance_notice`, stale `bankData` after connection, `provider_incident`, and `identity_notice` dedupe guidance. No contradiction with annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is long but front-loaded with the core purpose and packed with necessary caveats. Most sentences earn their place, though the density of edge-case warnings makes it somewhat heavy for a simple list tool.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Since there is no output schema, the description carries the full burden of explaining return structure. It covers main fields, root-level context, multiple notice blocks, stale data behavior, and cross-tool references, making the tool practically self-sufficient for correct invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 0% schema description coverage, the description compensates well for `item` and `item_ids`, including omit behavior and bulk execution. However, it does not explicitly explain the `type` filter or the singular `item_id` parameter, leaving some inference to the schema enum and naming.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description opens with a specific verb and resource: 'Returns accounts for a bank connection: BANK (checking/savings) and CREDIT (credit card)' and enumerates the returned fields. It clearly differentiates account listing from bill/transaction tools and clarifies the `bank` vs `name` distinction.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly states when to omit `item` (user asks for 'my accounts/cards' without naming a bank) vs pass `item` to target one bank. It also explicitly routes the agent to openfinance_list_credit_card_bills for standardized bill amounts and total debt, making alternatives and conditions clear.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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TDQS

A4/5.0
Disambiguation4/5

The tools are mostly distinct, covering authentication, marketplace navigation, Open Finance data retrieval (accounts, transactions, bills, loans, investments), and status/connector management. Some overlap exists between openfinance_list_transactions and openfinance_list_transactions_by_item (both return transactions, but the latter is a consolidated summary), which could cause momentary confusion, though descriptions clearly differentiate them.

Naming Consistency4/5

Tool names follow a clear pattern: 'openfinance_' prefix for Open Finance operations, with consistent verb_noun structure (list_accounts, get_account_balance, update_transaction_category). However, there are a few outliers like 'authenticate', 'connect', 'marketplace', 'report_bug', and 'show_version' that don't follow the Open Finance naming convention, though they serve different purposes and are still readable.

Tool Count4/5

With 25 tools, the count is slightly high but justifiable given the broad scope: the server covers Open Finance banking data (accounts, transactions, bills, loans, investments, connections), marketplace operations, and system utilities. Not all tools are used in every session, but each serves a distinct purpose, and the count remains manageable due to clear grouping.

Completeness4/5

The tool surface covers the core Open Finance lifecycle well: list and get accounts, transactions, bills, loans, investments, plus sync, reconnect, and category updates. It also includes connector search and provider status. Minor gaps exist, such as no explicit tool for updating or deleting a transaction category rule, and no direct CRUD for connections (only list and disconnect), but these are acceptable gaps.