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Banco do Nordeste do Brasil MCP

by io.github.mcp-dir

openfinance_search_bank_connectors

Read-onlyIdempotent

Searches the available bank connectors by name (pass keywords[], e.g. ['nubank','btg']) and returns, per match: the connector id, whether it's Open Finance or API (access), PF/PJ (audience), the user's already-linked connections (and accounts when include_accounts=true), and a ready connect_url with the bank pre-selected. Some non-Open-Finance credential connectors carry a caveat warning that they don't auto-update (needs periodic manual reconnection) — surface it so the user can prefer the institution's Open Finance connector for automation. Honors the user's plan (a PF plan hides PJ banks; a PJ plan covers BOTH — PF and PJ banks connect and count under the same plan). Call this BEFORE connecting to hand the user a one-click link to the right bank. keywords[] is REQUIRED — without it returns a hint (never dumps the whole catalog).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
keywordsNo
include_accountsNo

TDQS

A4.7/5.0
Behavior4/5

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

Annotations indicate readOnlyHint and idempotentHint, but the description adds context about caveats for credential connectors, plan-honoring behavior, and the hint return when keywords missing. This goes beyond annotations, though some behavioral aspects are implied.

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 front-loaded with the core purpose and provides rich detail. While slightly long, every sentence adds value. Could be trimmed slightly but remains effective.

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?

Covers search behavior, plan rules, caveat handling, connect_url generation, and parameter requirements. With no output schema, it sufficiently describes what the tool returns and how to use it.

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?

Despite 0% schema description coverage, the description explains keywords[] with examples and notes include_accounts triggers account returns. This adds significant meaning beyond the raw 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 searches bank connectors by name, returns specific fields (id, access, audience, connections, connect_url), and provides a one-click link. It differentiates from siblings like 'connect' and 'authenticate' by focusing on search and link generation.

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 instructs to call this BEFORE connecting, warns about caveats for non-Open-Finance connectors, explains plan behavior (PF hides PJ banks), and notes that keywords[] is required else returns a hint. Provides clear when-to-use and when-not-to-use 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

Most openfinance_* tools target a distinct resource and action, and the descriptions carefully separate overlapping endpoints like openfinance_list_transactions vs openfinance_list_transactions_by_item and openfinance_get_credit_card_bill vs openfinance_list_credit_card_bills. The main ambiguity risk is the broad marketplace mega-tool, but its many sub-capabilities are explicitly enumerated.

Naming Consistency4/5

Tool names consistently use snake_case with a strong openfinance_ prefix and verb-led patterns like list_, get_, update_, disconnect_, and force_sync. Minor deviations exist: openfinance_provider_status lacks a verb, openfinance_get_accounts_detail is awkwardly pluralized, and the platform tools (connect, marketplace, authenticate) break from the prefix pattern.

Tool Count3/5

At 25 tools, the server sits at the heavy end of the appropriate range. The Open Finance domain is complex enough to justify most entries, but the inclusion of platform-level tools like marketplace, authenticate, connect, and toolkit_info makes the overall surface feel denser and less focused than a pure banking-data server.

Completeness4/5

The set provides strong coverage of the Open Finance lifecycle: connections, sync/status, accounts, balances, transactions, credit card bills, loans, investments, category management, and provider health. Minor gaps exist, such as no dedicated investment-detail-by-id tool and no way to set custom connection labels, but these are workable and do not create critical dead ends.

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