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openfinance_get_credit_card_bill

Read-onlyIdempotent

Returns bill-level detail for one or more credit card bills by id (GET /bills/:id): dueDate, billClosingDate (when the cycle closed — the boundary that defines which purchases belong to this bill), totalAmount, financeCharges and payments[] (id, paymentDate, amount, valueType, paymentMode). ITEMIZED PURCHASES (OPT-IN): the bank's bill payload has no transactions in it — they live on the card ACCOUNT. Pass include_transactions:true (plus account_id of the credit card, since the bill itself carries no account reference) and each row also gets transactions[], transactions_count, transactions_sum and reconciles_with_total, already matched to that bill. Always check transactions_basis: bill_id = exact (the bank tagged each transaction with this bill — the normal case for CLOSED bills), date_window = ESTIMATE (confidence:'low', window echoed in transactions_window) used when the connector tags no billId or the bill is still open (PENDING lines get no billId until the cycle closes), unavailable = no link possible. Opt-in because it costs an extra full transaction scan of the account. Whatever the basis, the bill's own totalAmount is authoritative — do NOT rebuild it by summing transactions. Without the opt-in the response carries a transactions_hint; you can also fetch them yourself via openfinance_list_transactions with the credit card account_id and a from/to range ending at billClosingDate. Pass bill_ids as an array — use openfinance_list_credit_card_bills first to discover ids. { results, errors } batch shape. NOTE: Pluggy does NOT return a paid/status field. In Brazilian Open Finance, payments[] reflects payments registered during THIS bill's billing cycle — typically the payment of the PREVIOUS bill (do NOT assume this bill was paid just because payments[] is non-empty). To check paid status, prefer openfinance_list_credit_card_bills which derives payment_status via cross-bill match.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
bill_idsYes
account_idNo
transactions_detailNo
include_transactionsNo

Schema Changelog

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

  1. Added
  2. Removed
  3. Changed3 schema fields changed
    • addedInput schema / properties / account_id
      Added value: +{
      +  "type": "string"
      +}
    • addedInput schema / properties / include_transactions
      Added value: +{
      +  "type": "boolean"
      +}
    • addedInput schema / properties / transactions_detail
      Added value: +{
      +  "enum": [
      +    "compact",
      +    "rich",
      +    "raw"
      +  ],
      +  "type": "string"
      +}
  4. Added
  5. Removed
  6. First observed

TDQS

A4.9/5.0
Behavior5/5

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

Beyond the readOnlyHint and idempotentHint annotations, the description discloses nuanced behavior: the absence of transactions in the bill payload, the need for account_id, the meaning of transactions_basis with confidence levels, the 'unavailable' case, and the authority of totalAmount (do not rebuild). It also warns against assuming paid status from payments[]. This is rich behavioral context that annotations alone do not provide.

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

Conciseness5/5

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

The description is long but every sentence earns its place. It front-loads the core purpose, then systematically covers the opt-in behavior, edge cases, and critical caveats, ending with a clear note about payments. The structure uses headers and bullet-like clarity, making it scannable despite its length. No fluff or redundancy.

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?

For a tool with four parameters, no output schema, and complex business logic (bill cycles, transaction matching, payment semantics), the description is remarkably complete. It covers all parameter semantics (except transactions_detail), explains the response shape, provides guidance on basis variants, warns about authoritative values, and even addresses cultural differences in payment handling. An agent has everything needed to call it correctly in all scenarios.

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 carries the burden of explaining parameters. It clearly explains bill_ids (array, discover via list tool), account_id (required for transactions opt-in), and include_transactions (triggers extra scan). However, transactions_detail is not mentioned at all; its enum values (compact, rich, raw) are left undefined. Given the complexity and that three of four parameters are well-covered, it falls just short of a perfect score.

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 precise statement: 'Returns bill-level detail for one or more credit card bills by id' and enumerates the specific fields returned. It clearly distinguishes itself from siblings by referencing openfinance_list_credit_card_bills for ID discovery and openfinance_list_transactions for manual transaction fetching, making the tool's scope 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 explicitly instructs when to use the opt-in transactions feature, tells agents to run openfinance_list_credit_card_bills first to discover bill IDs, and notes that transactions can alternatively be fetched via openfinance_list_transactions. It also provides the critical caveat about payments not implying paid status, directing users to a sibling tool for that, giving clear direction on tool selection.

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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