App

Cnpja integrations

Connect Cnpja to any other app, or use it from your AI client over MCP. API for real-time lookup of Brazilian CNPJ company registration data, including tax status, address, and shareholder details.

Connects with an API keycnpja.com
12 actions

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

Build solutions, not workarounds.

What do you want to automate with Cnpja?

Ask the assistant

You'll sign in before anything runs. What you typed comes with you.

Connect your AI client

Give your AI client this address.

https://mcp.apiant.ai

One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.

Set it up in your client
Claude Code

Run this in the directory you want to work in.

claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai

Start Claude Code there, approve the server, and sign in in the browser page it opens.

Claude Code guide (opens in a new tab)
Claude, web and desktop

Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.

Setup guide (opens in a new tab)
Cursor

Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.

Setup guide (opens in a new tab)
Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

Setup guide (opens in a new tab)
Codex and the ChatGPT desktop app

Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.

Setup guide (opens in a new tab)
Any other MCP client

Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.

Setup guide (opens in a new tab)

Popular

Cnpja with the apps people pair it with most

Pair it

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What your agent can do with Cnpja

Triggers and actions 12 actions

  • Action
    Add list

    Creates a new list of Brazilian companies (CNPJs) in your CNPJá account, either from a set of CNPJ numbers or from search filters.

  • Action
    Delete list

    Deletes a CNPJ list by its ID.

  • Action
    Find offices by criteria

    Returns Brazilian business establishments (CNPJs) that match the search criteria you set, such as name, location, activity, status or contact details.

  • Action
    Get company

    Returns a Brazilian company's registration data, including its partners (members) and all of its offices.

  • Action
    Get credit balance

    Returns the number of credits remaining in your CNPJá account, split into carried-over and current-month credits.

  • Action
    Get list

    Returns a CNPJ list by its id, including its title, description, size, CNPJ numbers and the search filters used to build it.

  • Action
    Get office

    Returns the full registration details of a Brazilian establishment (office) by its CNPJ, including company, address, contacts, activities and optional Simples, state registration and SUFRAMA data.

  • Action
    Get person

    Returns a person's details, including every company partnership they belong to.

  • Action
    Get Simples Nacional status

    Returns a company's Simples Nacional and MEI status, including inclusion dates and optional history of past periods.

  • Action
    Get zip code

    Returns the address details for a Brazilian postal code (CEP), including street, district, city, state and IBGE municipality code.

  • Action
    List lists

    Returns the company (CNPJ) lists in your CNPJá account, optionally filtered by a search term in the title or description.

  • Action
    Update list

    Updates the title, description or CNPJ items of an existing CNPJ list and returns the updated list.

Reviews

What our customers say

Questions

Cnpja, answered

Is there a Cnpja MCP server?

APIANT's MCP server at https://mcp.apiant.ai works with Cnpja. Add that address to any AI client that takes a remote MCP server and sign in once in your browser. Your client can then run Cnpja actions on demand, or have APIANT build, test and run automations that use Cnpja. Nothing to install.

What can your agent do in Cnpja?

Any of Cnpja's 12 actions, including Update list, Add list, Find offices by criteria and Get company. Your agent maps the data both ways and tests every scenario before it ships.

Can I use Cnpja directly from Claude, ChatGPT or Cursor?

Yes. Connect your AI client to APIANT once and it works with Cnpja two ways. Ask it to do something in Cnpja once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running on its own. A one-off action uses your plan's tasks the same way an automation step does.

Do I need to write code against the Cnpja API?

No. APIANT connects to the Cnpja API for you, with your Cnpja API key. Describe what you want in plain language and your agent builds it on the Cnpja triggers and actions in the catalog. If you need an endpoint that is not there yet, your agent reads the Cnpja API documentation and adds it.

Which apps can Cnpja connect to?

Any app in the catalog; the list on this page pairs Cnpja with each of them. If the other app is missing, point your agent at its API documentation and it builds the connector.

What happens when something fails?

Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.

Is there a free plan?

Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.