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Unicred 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.

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  15. 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"
      +}
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TDQS

A4.8/5.0
Behavior5/5

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

Annotations already declare readOnlyHint and idempotentHint, but the description adds extensive behavioral nuance: connector-dependent credit `balance` meaning, `balance_notice` semantics, lagging `bankData` fields after connection creation, `provider_incident` unreliability, and `identity_notice` consent-holder ambiguity. These are exactly the non-obvious behaviors an agent needs and go well beyond the 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 return shape and usage decision before diving into caveats. Every major paragraph addresses a real failure mode. It is not tightly concise, and some explanations could be condensed, but for a tool with this many connector-specific edge cases, the length is largely justified.

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?

There is no output schema, so the description carries the full burden of explaining response fields and edge cases. It covers response structure, per-field meanings, incident/notice handling, bulk behavior, and when to defer to sibling tools. An agent has enough context to invoke this tool correctly and interpret results safely in nearly all realistic situations.

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?

Schema description coverage is 0%, so the description must compensate. It clearly explains `item` omission vs. passing, and `item_ids` for bulk execution. However, it does not explicitly clarify the difference between `item` and the singular `item_id` parameter, and `type` is only indirectly covered through the BANK/CREDIT output explanation. Strong compensation overall, but with a small semantic gap.

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 states exactly what the tool returns: accounts for bank connections, split into BANK and CREDIT, with balance, number, type, subtype, bankData, and creditData. It also clarifies the `bank` connector-name field and distinguishes account issuer name from brand, making the tool's purpose and output unambiguous.

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?

The description gives explicit when-to-use guidance: omit `item` to list across all linked banks, pass `item` to target a single bank, and use `openfinance_list_credit_card_bills` when a standardized open-bill amount is needed. It also names `openfinance_force_sync` as the reconciliation action for stale derived fields, clearly routing an agent away from misusing this tool.

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

A3.9/5.0
Disambiguation4/5

The openfinance_* tools are clearly separated by resource and action—accounts, transactions, bills, loans, investments, and connection status—so an agent can usually tell them apart. A few pairs remain confusable, notably openfinance_list_transactions vs openfinance_list_transactions_by_item and the monolithic marketplace tool overlapping with report_bug, but the detailed descriptions largely resolve the boundaries.

Naming Consistency4/5

The openfinance_* subset follows a consistent snake_case verb_noun convention (list_accounts, get_item_status, update_transaction_category), and non-openfinance tools like report_bug and show_version fit the same style. The pattern breaks with bare verbs/nouns such as connect, authenticate, marketplace, and toolkit_info, but the domain prefix makes the majority predictable.

Tool Count3/5

25 tools sits at the top of the heavy-but-manageable range, and the Open Finance resource pairs plus platform/marketplace tools each earn some place. The count feels slightly bloated because marketplace bundles many capabilities and several status/sync tools could be consolidated, but the scope is broad enough that the number is defensible.

Completeness4/5

The toolkit covers the core Open Finance surface thoroughly: accounts, balances, transactions, credit-card bills, loans, investments, categories, connection lifecycle, sync, and provider health, plus marketplace and platform plumbing. Minor gaps exist—no direct connect-bank action beyond URLs, no per-transaction get endpoint, and some marketplace operations are only accessible through the single marketplace tool—but standard workflows are not dead-ended.