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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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  2. Removed
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  11. First observed

TDQS

A4.7/5.0
Behavior5/5

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

Beyond annotations (readOnlyHint, idempotentHint), the description reveals critical behaviors: Pluggy lacks paid/status field, cycle logic for payment attribution, derived payment_status logic, open_bill availability with reasons (connector_exposes_no_pending, open_bill_not_published), and connector asymmetry. Fully discloses how the tool operates and its caveats.

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 verbose and lacks clear structure (e.g., bullet points or sections). Important details are embedded in paragraphs, making it harder to scan quickly. However, it is front-loaded with the basic purpose, and every sentence adds value, so it is not padded.

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

Completeness4/5

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

Given the complexity (5 params, no output schema, nuanced domain), the description covers almost all aspects: returned fields, payment status derivation, open bill semantics, connector limitations, warnings, bulk support, and cross-account identification. Minor omissions: no pagination defaults or exact error responses, but overall highly complete.

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

Parameters5/5

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

With 0% schema description coverage, the description fully explains all five parameters: account_id (required), page, page_size, account_ids (bulk support), and include_open_bill with detailed semantics (what open_bill contains, confidence levels, availability false with reason). No extra meaning is needed beyond what the description provides.

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 CREDIT-type accounts, listing key fields. It distinguishes from siblings like openfinance_get_credit_card_bill (singular bill) and openfinance_list_transactions (transactions, not bills). The verb 'list' and scope 'closed bills' are precise.

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?

Provides extensive when-to-use and when-not-to guidance: warns not to assume payment from payments[], explains derived payment_status, recommends openfinance_list_transactions for itemized charges, and specifies include_open_bill as opt-in. Explicitly mentions alternatives and limitations like connector asymmetry and bill_grouping_reliability.

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

A4.1/5.0
Disambiguation4/5

The openfinance_* tools are clearly separated by resource and action, and their detailed descriptions make most choices unambiguous. However, marketplace is a multi-action mega-tool that duplicates report_bug, and openfinance_list_transactions vs openfinance_list_transactions_by_item have some overlap that could cause misselection.

Naming Consistency4/5

The 19 openfinance_* tools follow a consistent and predictable 'openfinance_<verb>_<noun>' pattern. The non-openfinance tools are a mixed set (marketplace, toolkit_info, show_version, report_bug, authenticate, connect), which is readable but not fully uniform.

Tool Count3/5

25 tools lands right at the heavy end of the borderline range. The Open Finance domain genuinely has many distinct resources, but the marketplace tool alone packs in many sub-actions, which makes the total tool count feel more bloated than the domain strictly requires.

Completeness4/5

The surface covers the full Open Finance lifecycle well: connections, sync/disconnect, accounts, transactions, credit card bills, loans, investments, categories, provider health, and platform administration. Minor gaps exist, such as no direct connect/add-bank tool beyond returning a connect_url and no get-single-transaction endpoint, but agents can work around these.