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Unicred MCP

openfinance_list_credit_card_bills

Read-onlyIdempotent

Returns CLOSED credit card bills for a CREDIT-type account: dueDate, totalAmount, minimumPaymentAmount, allowsInstallments, plus payments[] (id, paymentDate, amount, valueType, paymentMode), payments_count, payments_total, finance charges aggregates, and a derived payment_status per bill. IMPORTANT — Brazilian Open Finance semantics: Pluggy does NOT return a paid/status field. The payment goes into the payments[] of the bill whose CYCLE contains the paymentDate (closing ≈ dueDate − 7d): pre-payment before close stays on the bill being paid; payment between close and due, or after due, lands on the NEXT bill. So payments[] on a bill commonly carries the previous bill's payment, NOT the current one's — do NOT assume this bill was paid just because payments[] is non-empty. Use the derived payment_status (PAID | OPEN | PAST_DUE_UNCONFIRMED | PAST_DUE_UNPAID): a bill is PAID when its OWN payments[] (early pre-payment) or ANY newer bill in the payload contains a payment with amount ≈ this bill's totalAmount (±R$0.50). The MOST RECENT bill that's past-due, with no own pre-payment match, cannot be confirmed via cross-bill (the next cycle hasn't closed yet) — it returns PAST_DUE_UNCONFIRMED. NEVER call such a bill 'vencida' categorically; flag that the payment may have been made between close and due and not yet reflected upstream. The full payment_status_legend is returned alongside the results. OPEN BILL & TOTAL DEBT (standardized, derived — OPT-IN): pass include_open_bill:true to ALSO get open_bill (the current not-yet-closed bill, próxima a vencer) and total_pending_debt (saldo devedor total = all pending installments), BOTH derived from PENDING transactions so they mean the same thing across connectors — use these instead of the CREDIT account's balance, whose meaning VARIES by connector (some report the open-bill partial, others the full installment debt). open_bill = { available, method (cycle_dates = real close/due dates | calendar_month_fallback = estimated, confidence:'low'), close_date, due_date, total_amount (net charges − credits), transaction_count }; plus a future_bills[] breakdown per month — LOW-confidence forward projections of PENDING installments (confidence:'low', basis), NOT authoritative bills (for closed months trust the results totalAmount). CONNECTOR ASYMMETRY: where the bank does NOT expose the open bill before closing (only closed bills, no reliable cycle dates), open_bill.available is false with a reason (connector_exposes_no_pending or open_bill_not_published) — that bill isn't retrievable by any endpoint until it closes (upstream limit of the institution's Open Finance feed, not our filter); check the bank app for the current open bill. When per-transaction billId grouping does not reconcile with the bills' totals, a bill_grouping_reliability warning is attached (trust totalAmount, do not sum by billId). Default false (the projection runs an extra accounts+transactions scan, so it's opt-in). The response opens with an account echo block ({ account_id, bank, name, number, type, item_id }) identifying WHICH card/bank these bills belong to. When more than one bank is connected, ALWAYS cross-check the echo against the card you intended to query and name the bank when presenting results — never attribute one bank's bills to another. This tool's results are bill-level summaries — NOT individual transactions, and each bill's totalAmount (from the bank) is the AUTHORITATIVE amount. To see itemized purchases/charges, use openfinance_list_transactions with the CREDIT account_id — but note creditCardMetadata.billId is a per-connector hint that can be sparse/inconsistent (e.g. Nubank), so do NOT reconstruct a bill total by summing transactions by billId. Returns a warning instead of failing if the CREDIT_CARDS product is not enabled.

Bulk support: accepts account_ids for batched execution.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pageNo
page_sizeNo
account_idYes
account_idsNo
include_open_billNo

Schema Changelog

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

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TDQS

A4.7/5.0
Behavior5/5

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

Annotations already declare readOnlyHint=true and idempotentHint=true, but the description adds extensive behavioral context: payment timing quirks (pre-payment vs post-payment assignment), derived payment_status logic, open bill derivation, connector asymmetry, and bill grouping reliability. 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.

Conciseness3/5

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

The description is very long and dense, making it less concise. While front-loaded with core purpose, it contains extensive details on payment logic and edge cases that could be condensed or structured better. Every sentence adds value but could be more streamlined for agent readability.

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?

Without an output schema, the description fully explains the response structure: payments[], counts, totals, finance charges, payment_status, open_bill (with subfields and confidence), future_bills, warnings. It covers edge cases (connector asymmetry, unreliability warnings) and provides complete context for inferring correct usage.

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 description must compensate. It thoroughly explains include_open_bill (its boolean, effects, derived data) and account_ids (bulk support). However, it does not explain page and page_size parameters, which are common but should be clarified for completeness. Overall adds significant meaning beyond schema.

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 clearly states it returns closed credit card bills for a CREDIT-type account, specifying the verb 'list' and resource 'credit card bills'. It distinguishes from sibling tools like openfinance_get_credit_card_bill (single bill) and openfinance_list_transactions (transactions) by focusing on closed bills and summarizing field details.

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 provides when to use (for closed bills, with CREDIT account), when to avoid (do not sum transactions by billId, use openfinance_list_transactions for itemized charges), and opt-in alternative (include_open_bill:true for open bill). It also warns about connector-specific limitations, giving clear guidance.

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.