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Brasil

CEP, CNPJ, boleto, Pix, FIPE — a vida brasileira em um conector

Unify Dynamics LLC

Documentation
Tools14read-only
Sign-inNoneno account, no key
Data keptNoneprocessed in memory
PriceFreeoptional Pro limits
StatusLiveMCP + REST
Works withMCP · RESTany agent

Try asking

Real questions, and the tools your agent calls to answer them.

Qual o endereço do CEP 01001-000?
Tools called
cep_lookup
Essa empresa existe e está ativa? CNPJ 19.131.243/0001-97
Tools called
cnpj_lookup
Esse boleto é verdadeiro? Quanto é e quando vence?
Tools called
boleto_decode
Quem recebe esse Pix copia e cola?
Tools called
pix_decode
DDD 71 é de onde?
Tools called
ddd_lookup
Quando é o próximo feriadão?
Tools called
holidays
Cotação do dólar PTAX em 15/08 e a Selic de hoje
Tools called
rates
Tabela FIPE do meu Onix 2020
Tools called
fipe_price

About

Brasil answers the everyday and business questions of Brazilian life from public data. Addresses from a CEP with coordinates; a company from its CNPJ at the Receita Federal (status, activity, size, partners, address); whether a CPF or CNPJ is even valid (check digits, including the new alphanumeric CNPJ); what a boleto's linha digitável says (bank, amount, due date, whether every check digit passes — a first fraud screen); what a Pix copia-e-cola code says (who is paid, amount, key type, static or dynamic, CRC); which state a DDD is; national holidays with long weekends; banks and Pix participants by code or name; SELIC, CDI and IPCA; Banco Central PTAX exchange rates for any day; FIPE vehicle prices by name and year; IBGE state and municipality codes; Brazilian ISBNs; NCM tax codes; and .br domain availability. BrasilAPI and the FIPE table, keyless; document and payment maths computed locally; nothing stored. Responde em português.

Sources: BrasilAPI (Correios/OpenCEP, Receita Federal, Anatel, Banco Central, IBGE, CBL, Siscomex, Registro.br), FIPE via parallelum; CPF/CNPJ/boleto/Pix maths computed locally

Privacy

The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.

Data not collectedNo account, no profile, no stored prompts or results.
Privacy policyTerms

What it can do

14 tools, grouped by job. Every one is read-only or compute-only.

OpenAPI
Endereço e empresa5 tools
  • Cep lookupAddress for a CEP: street, neighborhood, city, state, IBGE code, time zone and coordinates.
  • Cnpj lookupA company from its CNPJ at the Receita Federal: legal and trade name, registration status and date, when it opened, legal nature, size…
  • Validate documentWhether a CPF or CNPJ is well-formed: the check digits are recomputed locally (no lookup, nothing sent anywhere), with the formatted version.
  • Ddd lookupWhich state a DDD belongs to and the cities it covers.
  • IbgeIBGE data for a state (name, region, capital, population estimate) and, optionally, a municipality's IBGE code — the code many forms, NF-e and…
Pagamentos4 tools
  • Boleto decodeWhat a boleto says, before paying it: bank, amount, due date, whether it is a bank slip or an arrecadação (utility, tax), and whether every check…
  • Pix decodeWho a Pix code pays and how much, before paying: payee name and city, amount (if fixed), key type (CPF, CNPJ, phone, email, random) or dynamic…
  • Bank lookupFind a bank or payment institution by COMPE code, ISPB or name, with whether it participates in Pix and how.
  • RatesToday's SELIC, CDI and IPCA, and the Banco Central PTAX exchange rates for the currencies asked (buy/sell, by bulletin) for a date.
Referência5 tools
  • HolidaysBrazil's national holidays for a year with weekday, plus the next one and long weekends (holidays falling Monday/Friday or adjacent to one).
  • Fipe priceFIPE reference price for a vehicle from its name: the best-matching model with its price for the year asked (or the latest years), FIPE code and…
  • Isbn lookupA book by ISBN from the Brazilian ISBN agency and open catalogs: title, authors, publisher, year, pages, subjects and synopsis.
  • Ncm searchNCM (Mercosur tariff) codes matching a product description or code prefix, with validity dates — the code that goes on NF-e and import declarations.
  • Domain checkWhether a .br domain is available at Registro.br, and if taken, its publication status, expiry and name servers.

Information

PublisherUnify Dynamics LLC
CategoryBrazil · Money & business
LanguagesPortuguês, English
Built forBrazil
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpointhttps://brasil.connectorbay.com/mcp
REST APIopenapi.json
SupportGet help · Status
CountryWorldwide

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Documentation

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Brasil — connector documentation

  • MCP endpoint: https://brasil.connectorbay.com/mcp
  • REST API: POST https://brasil.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://brasil.connectorbay.com/openapi.json
  • Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
  • Authentication: none required. An optional Authorization: Bearer <key> raises rate limits.
  • Health: https://brasil.connectorbay.com/health · Tool schemas: https://brasil.connectorbay.com/tools.json
  • Publisher: Unify Dynamics LLC · connectorbay.com/brasil · agent@connectorbay.com

What Brasil is for

The questions a Brazilian asks a dozen times a month — qual o endereço desse CEP, essa empresa existe, esse boleto é verdadeiro, quem recebe esse Pix, DDD 71 é de onde, quando é o próximo feriadão, quanto está o dólar, quanto vale meu carro na FIPE — answered from public data in one connector, in Portuguese.

Sources and what they mean

  • BrasilAPI (community-run, MIT) fronts the public sources: Correios/OpenCEP for CEPs, the Receita Federal for CNPJs (partner CPFs are masked at source), Anatel for DDDs, the Banco Central for banks, Pix participants, PTAX and SELIC/CDI/IPCA, IBGE, the CBL ISBN agency, Siscomex NCM, and Registro.br.
  • FIPE prices come from the FIPE table via the parallelum.com.br public API: the monthly market average per exact version and year, the base for negotiations, insurance and IPVA.
  • Document and payment maths are local: CPF and CNPJ check digits (including the alphanumeric CNPJ in force since July 2026), FEBRABAN boleto linha digitável / barcode decoding (bank, amount, due date from the fator de vencimento with the 2025 rollover, all check digits), and Pix BR Code (EMV) decoding with CRC-16. A CPF is never looked up.

A boleto or Pix code that passes its check digits is well-formed, not necessarily legitimate: every payment answer ends by telling the person to compare the payee their bank shows with who they meant to pay.

Tools

Endereço e empresa

cep_lookup — Address for a CEP: street, neighborhood, city, state, IBGE code, time zone and coordinates. Use for "qual endereço é esse CEP", filling forms, "onde fica o CEP 70040-912". Args: cep.

cnpj_lookup — A company from its CNPJ at the Receita Federal: legal and trade name, registration status and date, when it opened, legal nature, size (MEI/ME/EPP…), Simples Nacional, share capital, main and secondary activities (CNAE), address, contact, and the partners/administrators (QSA). Use for "essa empresa existe", "quem são os sócios", "está ativa?". Args: cnpj.

validate_document — Whether a CPF or CNPJ is well-formed: the check digits are recomputed locally (no lookup, nothing sent anywhere), with the formatted version. Use for "esse CPF é válido", "esse CNPJ está certo", before a form is submitted. A valid checksum does not mean the number belongs to anyone in particular. Args: value.

ddd_lookup — Which state a DDD belongs to and the cities it covers. Use for "DDD 71 é de onde", "esse número é de que estado". Args: ddd.

ibge — IBGE data for a state (name, region, capital, population estimate) and, optionally, a municipality's IBGE code — the code many forms, NF-e and government systems require. Use for "código IBGE de Campinas", "população estimada da Bahia". Args: uf, municipality.

Pagamentos

boleto_decode — What a boleto says, before paying it: bank, amount, due date, whether it is a bank slip or an arrecadação (utility, tax), and whether every check digit passes — a first screen against tampered or fake slips. Use for "esse boleto é verdadeiro", "quanto é e quando vence", "de que banco é". Args: code.

pix_decode — Who a Pix code pays and how much, before paying: payee name and city, amount (if fixed), key type (CPF, CNPJ, phone, email, random) or dynamic URL, transaction id, whether it is single-use, and whether the CRC is intact. Use for "quem recebe esse Pix", "esse código Pix é seguro", "quanto é". Args: payload.

bank_lookup — Find a bank or payment institution by COMPE code, ISPB or name, with whether it participates in Pix and how. Use for "que banco é o 260", "Nubank é banco de que código", "o Mercado Pago faz Pix direto?". Args: query.

rates — Today's SELIC, CDI and IPCA, and the Banco Central PTAX exchange rates for the currencies asked (buy/sell, by bulletin) for a date. Use for "quanto está a Selic", "cotação do dólar hoje", "euro PTAX em 15/08/2026", "CDI atual". Args: fx_currencies, day.

Referência

holidays — Brazil's national holidays for a year with weekday, plus the next one and long weekends (holidays falling Monday/Friday or adjacent to one). Use for "feriados de 2027", "quando é o próximo feriado", "tem feriadão em novembro?". Args: year, from_today.

fipe_price — FIPE reference price for a vehicle from its name: the best-matching model with its price for the year asked (or the latest years), FIPE code and reference month, plus the other models that matched so the person can pick the exact version. Use for "tabela FIPE do Onix 2020", "quanto vale minha CG 160", "preço FIPE da Toro". FIPE is the base for negotiations, insurance and IPVA. Args: vehicle, kind, year.

isbn_lookup — A book by ISBN from the Brazilian ISBN agency and open catalogs: title, authors, publisher, year, pages, subjects and synopsis. Use for "que livro é esse ISBN", cataloguing, checking an edition. Args: isbn.

ncm_search — NCM (Mercosur tariff) codes matching a product description or code prefix, with validity dates — the code that goes on NF-e and import declarations. Use for "NCM de café torrado", "o que é o NCM 8471.30". Args: query.

domain_check — Whether a .br domain is available at Registro.br, and if taken, its publication status, expiry and name servers. Use for "esse domínio .com.br está livre", "quando expira o domínio X". Args: domain.

Conventions

  • Read-only. Every tool reads public data or computes; nothing is written anywhere and nothing about the user is stored.
  • Result envelope. ok: true with data, or ok: false with a structured error (bad_input, not_found, upstream_error). degraded lists optional sources that were unreachable.
  • Rate limits. Free tier 60 tool calls/minute and 300/day per user (keyed on the user identifier supplied by the host agent, else client IP); Pro keys raise this. Over-limit calls return HTTP 429 with Retry-After. initialize and tools/list are never counted.

Support

agent@connectorbay.com · connectorbay.com/brasil/support

Privacy policy

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Brasil — Privacy Policy

Effective 22 September 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What Brasil is. Brasil is a connector (an MCP server and REST API) that AI assistants and personal agents call on your behalf for Brazilian public data: CEP and CNPJ lookups, CPF/CNPJ validation, boleto and Pix decoding, DDD, holidays, banks, rates, FIPE prices, IBGE, ISBN, NCM and .br domains. You interact with your assistant; the assistant sends us only the specific request needed: a CEP, a CNPJ, a boleto or Pix code, a vehicle name, a date.

What we receive. The arguments of each tool call, the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant, and a Pro API key if you have one), and standard server logs.

What we do not receive or store. We do not receive your conversation with the assistant, your name, contacts, or credentials for any service. Request arguments (a CEP, a CNPJ, a boleto line) are used to compute or fetch the answer in memory and are not stored. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting-provider access logs, which contain IP addresses and request paths but not request bodies, are retained for up to 30 days for security and abuse prevention.

CPFs and payment codes (LGPD). A CPF identifies a person: Brasil validates its check digits on our server and never sends it anywhere or stores it. Boleto and Pix codes are decoded on our server and not stored; they can contain a payee's name or key, which we return to you and keep nowhere. CNPJ records are public Receita Federal data with partners' CPFs masked at source.

Sub-processors. To answer requests we send only the code, name or number asked about (never anything about you) to BrasilAPI and the parallelum FIPE API (Brazil); CPF/CNPJ, boleto and Pix validation is computed on our server and the number never leaves it. Hosting: Vercel (United States regions).

Legal bases and your rights. For users in California, the EU/UK and elsewhere, our processing is necessary to provide the service you request through your assistant. Because we store no personal data beyond short-lived logs, requests to access, correct or delete personal data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. We do not sell or share personal information and do not use your data to train models.

Children. Brasil is a general-audience service operated by the adult using the assistant.

Changes. We will post changes here with a new effective date.

Contact. Unify Dynamics LLC · agent@connectorbay.com

Terms of service

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Brasil — Terms of Service

Effective 22 September 2026. These terms govern use of the Brasil connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

  1. The Service. Brasil returns Brazilian reference data: CEP, CNPJ, bank and PIX participant lookups, FIPE vehicle prices, IBGE places, national holidays, exchange rates and document (CPF/CNPJ), boleto and Pix-code validation and decoding. It is accessed through an AI assistant or directly over MCP or HTTP.
  2. Payments. A boleto or Pix code that passes its check digits is well-formed, not necessarily legitimate. Confirm the payee shown by your bank before paying; pay only through your own bank's app. The Service never initiates a payment.
  3. Public records. CNPJ status, FIPE prices, rates and holidays are returned as published by their sources and may lag; they are not legal, tax, credit or financial advice. Consult an accountant or lawyer for decisions that depend on them.
  4. Acceptable use. Do not use the Service to overwhelm the underlying services or to circumvent rate limits. Automated use within the published limits is welcome.
  5. Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time.
  6. Data. Our Privacy Policy describes what we process. In short: nothing about you is stored.
  7. Attribution. Data by BrasilAPI (MIT), IBGE, Banco Central do Brasil and FIPE via public APIs; respect their terms when reusing output.
  8. Pro keys. Optional Pro API keys are issued at our discretion, are personal to the holder and may be revoked for abuse.
  9. Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss arising from use of or reliance on the Service. Our total liability is limited to US $100.
  10. Governing law. California law; venue in San Mateo County, California.
  11. Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/brasil

Support

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Brasil support

Email agent@connectorbay.com. We answer within two business days.

When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. Brasil never asks for them.

Get Brasil

Free · No sign-in · Read-only

Streamable HTTP, stateless, no authentication. Paste the endpoint into any MCP-capable agent.

https://brasil.connectorbay.com/mcp
{
  "mcpServers": {
    "brasil": {
      "type": "http",
      "url": "https://brasil.connectorbay.com/mcp"
    }
  }
}