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Mestre Prático • Brazil Retail & Commodities MCP

io.github.arthursantosmedia-stack/mestrepratico-brazil-prices-mcparthursantosmedia-stackstreamable-httpv1.5.0Scanned

Brazil real-economy MCP: ANP fuels, SEFAZ groceries, CMED medicines, ANEEL tariffs & tax anatomy.

11 tools: 5 change things and 6 only read.

Tools: 0 delete, 0 irreversible, 5 write, 6 read.
  • Reads private data · 0
  • Reads text others write · 10
  • Can send data out · 0
  • No findings

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5 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

11 tools

Changes things 5Claude Code: ask
  • brazil_cost_of_livingComputes a consolidated regional cost-of-living index and purchasing power parity (PPP) in Brazil, combining average fuel expenditure, basic food basket cost, and live USD/BRL exch…Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Computes a consolidated regional cost-of-living index and purchasing power parity (PPP) in Brazil, combining average fuel expenditure, basic food basket cost, and live USD/BRL exchange rate conversion. Updated daily. Read-only operation; no authentication required up to 60 req/min. Use brazil_fuel_prices or brazil_grocery_basket for granular item-level breakdowns, or brazil_compare_regions to compare two states side-by-side.

    Annotations the server declares

    • title: Brazil Regional Cost of Living & PPP Index
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • brazil_energy_tariffsProvides official ANEEL (Agência Nacional de Energia Elétrica) residential electricity tariffs (B1) across all 27 Brazilian states (UFs), covering state concessionaires (e.g.Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Provides official ANEEL (Agência Nacional de Energia Elétrica) residential electricity tariffs (B1) across all 27 Brazilian states (UFs), covering state concessionaires (e.g. Light, Enel, Cemig, Copel, Equatorial, Celesc). Computes estimated monthly electric bills for a given consumption baseline (default 150 kWh), and calculates thermal cooking parity: comparing the cost of residential cooking with an ANP 13kg LPG cylinder against 99 kWh of electric induction cooking. Read-only operation; zero authentication required.

    Annotations the server declares

    • title: Brazil Residential Electricity Tariffs & Thermal Parity (ANEEL)
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • brazil_freight_logisticsCalculates official Brazilian minimum road freight rates regulated by ANTT (Agência Nacional de Transportes Terrestres - Resolution No.Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Calculates official Brazilian minimum road freight rates regulated by ANTT (Agência Nacional de Transportes Terrestres - Resolution No. 5,867/2020) across all vehicle classes (2 to 9 axles) and cargo types (solid bulk, general cargo, refrigerated). Correlates freight costs with ANP Diesel S10 pump prices, computing diesel fuel expense ratio and the logistical cost impact per kilogram of food transported. Read-only operation; zero authentication required.

    Annotations the server declares

    • title: Brazil Road Freight Logistics & Diesel Impact (ANTT & ANP)
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • brazil_purchasing_power_oracleCalculates real purchasing power parity (PPP) and labor-hour requirements across all 27 Brazilian states (UFs).Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Calculates real purchasing power parity (PPP) and labor-hour requirements across all 27 Brazilian states (UFs). Computes the exact working hours required to afford essential household survival goods: the 13 essential grocery items (SEFAZ NFC-e / DIEESE), residential 13kg cooking gas (ANP), fuel (50L gasoline tank), and electricity (150 kWh ANEEL). Correlates with Banco Central do Brasil (BCB SGS) interest and inflation rates, thermal parity (LPG vs. electric induction cooking), and CONFAZ tax anatomy. Read-only operation; zero authentication required.

    Annotations the server declares

    • title: Brazil Purchasing Power & Labor-Hours Oracle
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • brazil_tax_anatomyPerforms constitutional and fiscal tax decomposition across all 27 Brazilian states (UFs) based on CONFAZ (Conselho Nacional de Política Fazendária) Agreements (ICMS Monofásico No.Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Performs constitutional and fiscal tax decomposition across all 27 Brazilian states (UFs) based on CONFAZ (Conselho Nacional de Política Fazendária) Agreements (ICMS Monofásico No. 15/2023 & No. 199/2022), Federal Decree No. 11,936/2024, and Tax Reform Constitutional Amendment EC 132/2023. Decomposes exact state ICMS, federal PIS/COFINS, and net physical product values for retail fuels, 13kg cooking gas, the basic food basket, and CMED pharmaceuticals. Read-only operation; zero authentication required.

    Annotations the server declares

    • title: Brazil Tax Anatomy & CONFAZ Fiscal Decomposition
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 6Show 6 read-only tools
  • brazil_compare_regionsComparative synthesis tool: Compares weighted average prices and percentage deltas for fuels (gasoline, ethanol, diesel), 13kg LPG cooking gas, and basic food basket costs side-by-…Reads text others writeNo findings

    Why it is in this group

    • The name "brazil_compare_regions" says "compare": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Comparative synthesis tool: Compares weighted average prices and percentage deltas for fuels (gasoline, ethanol, diesel), 13kg LPG cooking gas, and basic food basket costs side-by-side between any two Brazilian states (origin UF vs. destination UF). Read-only operation; no authentication required up to 60 req/min. Use brazil_list_states to discover valid UF codes, or brazil_fuel_prices and brazil_grocery_basket for single-state station/store drilldowns.

    Annotations the server declares

    • title: Compare Prices Between Two Brazilian States
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • brazil_fuel_pricesQueries real-time audited retail fuel prices in Brazil (Regular Gasoline, Additive Gasoline, Hydrous Ethanol, Diesel S10, and CNG) sourced from Brazil's National Petroleum Agency (…Reads text others writeNo findings

    Why it is in this group

    • The description's first verb is "query": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Queries real-time audited retail fuel prices in Brazil (Regular Gasoline, Additive Gasoline, Hydrous Ethanol, Diesel S10, and CNG) sourced from Brazil's National Petroleum Agency (ANP) across 4,750+ stations in all 27 states and 417+ cities. Updated weekly with daily SEFAZ NFC-e cross-validation. Read-only operation; no authentication required for standard rate limits (60 req/min, max 50 stations returned per call). Use brazil_list_states first to discover valid state codes (uf), or brazil_compare_regions to compare averages between two states.

    Annotations the server declares

    • title: Brazil Audited Fuel Prices (ANP)
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • brazil_grocery_basketQueries and compares real-time audited prices of Brazil's 13 Basic Food Basket items (rice, beans, coffee, soy oil, milk, sugar, beef, bread, butter, etc.) sourced from electronic …Reads text others writeNo findings

    Why it is in this group

    • The description's first verb is "query": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Queries and compares real-time audited prices of Brazil's 13 Basic Food Basket items (rice, beans, coffee, soy oil, milk, sugar, beef, bread, butter, etc.) sourced from electronic consumer invoices (NFC-e SEFAZ) and DIEESE methodology across 59 regional hubs. Updated daily. Read-only operation; no authentication required up to 60 req/min. Use brazil_list_states to check regional coverage, brazil_cost_of_living for full household budget synthesis, or brazil_compare_regions for cross-state comparisons.

    Annotations the server declares

    • title: Brazil Basic Food Basket Prices (SEFAZ NFC-e)
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • brazil_list_statesDiscovery and metadata support tool: Returns the complete list of all 27 Brazilian Federative Units (UFs) covered by the server, including state code, full name, monitored gas stat…No findings

    Why it is in this group

    • The name "brazil_list_states" says "list": a word for reading.
    Description, as the server wrote it
    Discovery and metadata support tool: Returns the complete list of all 27 Brazilian Federative Units (UFs) covered by the server, including state code, full name, monitored gas station count, regional ICMS tax bracket, and dataset audit timestamp. Read-only and idempotent; requires no parameters and no authentication. Call this tool first to validate UF codes before invoking brazil_fuel_prices, brazil_grocery_basket, brazil_lpg_gas_prices, or brazil_compare_regions.

    Annotations the server declares

    • title: List All 27 Brazilian States & Coverage Metadata
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • brazil_lpg_gas_pricesQueries official audited prices of residential cooking gas (13kg LPG cylinder / Botijao GLP P13) sourced from Brazil's National Petroleum Agency (ANP) across 13,145+ authorized res…Reads text others writeNo findings

    Why it is in this group

    • The description's first verb is "query": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Queries official audited prices of residential cooking gas (13kg LPG cylinder / Botijao GLP P13) sourced from Brazil's National Petroleum Agency (ANP) across 13,145+ authorized resellers in all 27 Brazilian states. Updated weekly. Read-only operation; no authentication required up to 60 req/min. Use brazil_list_states to list valid UF codes or brazil_compare_regions to compare LPG costs between states.

    Annotations the server declares

    • title: Brazil 13kg LPG Cooking Gas Prices (ANP)
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • brazil_pharma_medicinesQueries official Maximum Consumer Prices (PMC) and Factory Prices (PF) for 26,635+ regulated medicines in Brazil from CMED/ANVISA, including state-specific ICMS tax brackets (18% t…Reads text others writeNo findings

    Why it is in this group

    • The description's first verb is "query": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Queries official Maximum Consumer Prices (PMC) and Factory Prices (PF) for 26,635+ regulated medicines in Brazil from CMED/ANVISA, including state-specific ICMS tax brackets (18% to 20%), active ingredients, laboratory, presentation, and free eligibility under the federal Farmacia Popular program. Updated monthly per CMED resolution. Read-only operation; no authentication required up to 60 req/min (returns up to 15 matching presentations per call).

    Annotations the server declares

    • title: Brazil Regulated Medicine Prices (CMED/ANVISA)
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write10
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

No check matched anything in these tool definitions. That is not a safety guarantee.

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 1.5.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http mestrepratico-brazil-prices https://mestrepratico.com.br/mcp
claude mcp add --transport http mestrepratico-brazil-prices https://mestrepratico.com.br/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__mestrepratico-brazil-prices__brazil_fuel_prices",
      "mcp__mestrepratico-brazil-prices__brazil_grocery_basket",
      "mcp__mestrepratico-brazil-prices__brazil_lpg_gas_prices",
      "mcp__mestrepratico-brazil-prices__brazil_pharma_medicines",
      "mcp__mestrepratico-brazil-prices__brazil_list_states",
      "mcp__mestrepratico-brazil-prices__brazil_compare_regions"
    ],
    "ask": [
      "mcp__mestrepratico-brazil-prices__brazil_purchasing_power_oracle",
      "mcp__mestrepratico-brazil-prices__brazil_energy_tariffs",
      "mcp__mestrepratico-brazil-prices__brazil_freight_logistics",
      "mcp__mestrepratico-brazil-prices__brazil_tax_anatomy",
      "mcp__mestrepratico-brazil-prices__brazil_cost_of_living"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as mestrepratico-brazil-prices. Review it before you use it.

Capability tags behind 10 rules
  • mcp__mestrepratico-brazil-prices__brazil_fuel_prices untrusted-input
  • mcp__mestrepratico-brazil-prices__brazil_grocery_basket untrusted-input
  • mcp__mestrepratico-brazil-prices__brazil_purchasing_power_oracle untrusted-input
  • mcp__mestrepratico-brazil-prices__brazil_energy_tariffs untrusted-input
  • mcp__mestrepratico-brazil-prices__brazil_freight_logistics untrusted-input
  • mcp__mestrepratico-brazil-prices__brazil_tax_anatomy untrusted-input
  • mcp__mestrepratico-brazil-prices__brazil_cost_of_living untrusted-input
  • mcp__mestrepratico-brazil-prices__brazil_lpg_gas_prices untrusted-input
  • mcp__mestrepratico-brazil-prices__brazil_pharma_medicines untrusted-input
  • mcp__mestrepratico-brazil-prices__brazil_compare_regions untrusted-input

Pin

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/io.github.arthursantosmedia-stack/mestrepratico-brazil-prices-mcp/verify?hash=377f94e1b446badc52c07594a010f035a33fc80b0cedfbbe059eed2c86505220" | jq -e '.changed == false'

Pinned hash 377f94e1b446, from Oct 22, 2026, 19:17 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.arthursantosmedia-stack/mestrepratico-brazil-prices-mcp/changes.xml

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Source: MCP Registry · repository. Synced Oct 22, 2026, 20:17 UTC.