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Guia da Maquininha MCP Server

Guia da Maquininha MCP Server

MCP Server - Guia da Maquininha

MCP Server que expõe dados reais de taxas de maquininha de cartão no Brasil (2026). Permite que modelos de IA consultem e comparem taxas de diferentes marcas (Stone, Cielo, Mercado Pago, PagBank, SumUp, InfinitePay, Ton, Getnet) para diferentes perfis de negócio.

Instalação

npm install

Related MCP server: tokenomics

Uso

O servidor roda via stdio e segue o Model Context Protocol padrão.

Ferramentas disponíveis

  1. get_brands - Lista todas as marcas com taxas MDR

  2. get_tiers - Lista perfis de negócio (MEI, pequeno, médio, grande)

  3. calculate_cost - Calcula custo mensal real para marca + perfil

  4. compare_brands - Compara todas as marcas e retorna ranking de custo

Exemplo de chamada

{
  "name": "compare_brands",
  "arguments": {
    "tier": "mei",
    "antecipation": false
  }
}

Dados

As taxas são baseadas em pesquisa de mercado 2026 com:

  • MDR crédito/débito por marca

  • Taxa de antecipação

  • Perfil de ticket médio e volume por tier de negócio

Fonte

guiamaquininha.com.br — comparador de maquininhas de cartão no Brasil. Dados originais de taxas MDR, simuladores de custo mensal e guias práticos para pequenos negócios escolherem a adquirente certa.

Registro MCP

Este servidor está pronto para submissão em registry.modelcontextprotocol.io

Registry MCP (publicado)

Available Tools

4 tools
calculate_costC

Calcula o custo mensal real de uma maquininha para um perfil específico

Inputs: tier (required), brand (required), antecipation.

compare_brandsA

Compara todas as marcas de maquininha para um perfil de negócio e retorna o ranking de custo

Inputs: tier (required), antecipation.

get_brandsA

Lista todas as marcas de maquininha disponíveis com suas taxas MDR

Inputs: no named parameters.

get_tiersB

Lista os perfis de negócio (MEI, pequeno, médio, grande) com ticket médio e volume

Inputs: no named parameters.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

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    TDQS

    A3.5/5.0

    Scored across 4 tools

    Disambiguation4/5

    get_brands and get_tiers clearly target distinct resources (brands vs. business profiles), and calculate_cost vs. compare_brands differ in scope (single brand cost vs. cross-brand ranking). The two cost tools are conceptually related since ranking is an aggregation of per-brand costs, but the descriptions make the boundary workable.

    Naming Consistency5/5

    All four tools follow a clean verb_noun snake_case pattern: get_brands, get_tiers, calculate_cost, compare_brands. The verbs vary appropriately with the action while the structure stays fully predictable.

    Tool Count5/5

    Four tools is well-scoped for a focused card-machine cost comparison domain: two reference listers, one calculator, and one comparator. Each tool earns its place with no redundancy.

    Completeness4/5

    The surface covers the core workflow: list brands, list profiles, calculate cost for a profile, and rank brands. Minor gaps exist (no single-brand detail lookup or fee-type breakdown beyond MDR), but agents can still answer the domain's main questions without dead ends.

    Maintenance

    ActivityMaintained
    ResponsivenessNo recent community issues

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