--- title: "Connect Basecamp 3 to Cnpja - APIANT.ai" description: "When \"New Project\" fires in Basecamp 3, your agent runs \"Add list\" in Cnpja. Describe the whole flow and it is built, tested on every scenario and kept running." canonical: "https://apiant.ai/connect/basecamp-3-to-cnpja" --- # Connect Basecamp 3 to Cnpja When **New Project** fires in [Basecamp 3](https://apiant.ai/connections/basecamp-3), your agent runs **Add list** in [Cnpja](https://apiant.ai/connections/cnpja). Describe the whole flow and it is built, tested on every scenario and kept running. Basecamp 3 **3** triggers Basecamp 3 **5** actions Cnpja **12** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Basecamp 3 and Cnpja to do together? 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)](https://apiant.ai/docs/mcp/claude-code) ### 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)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) Example flows ## What Basecamp 3 can start in Cnpja - When **New Project** in Basecamp 3 then **Add list** in Cnpja - When **New To-do** in Basecamp 3 then **Update list** in Cnpja Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships. Everything your agent can do with Basecamp 3 and Cnpja ## Triggers and actions 3 triggers · 17 actions - Trigger **New Project** Polling trigger that fires when a new project is created in the Basecamp account. - Trigger **New To-do** Instant (webhook) trigger that fires when a new to-do is created in the selected Basecamp project. Basecamp POSTs a webhook event payload; the kind is filtered to todo_created and the recording (the to-do) is surfaced. - Trigger **New To-do in any project** Instant (webhook) trigger that fires when a new to-do is created in any Basecamp project. Basecamp POSTs a webhook event payload; the kind is filtered to todo_created and the recording (the to-do) is surfaced. - Action **Create Webhook** Creates a webhook subscription in a Basecamp project (bucket), delivering events to a payload URL. Returns the webhook id and details. - Action **Delete Webhook** Deletes a registered webhook from a Basecamp project (bucket). Returns the deleted webhook id. - Action **Get project** Retrieves a single Basecamp project by its ID, including its tools (dock) and people summary. - Action **List people** Lists every person visible to the connected user on the Basecamp account. - Action **List projects** Lists the projects visible to the connected user, most recently created first, optionally filtered by status. - 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. ## Each app on its own - [ **Basecamp 3** Basecamp 3 is a project management and team collaboration tool by 37signals.](https://apiant.ai/connections/basecamp-3) - [ **Cnpja** API for real-time lookup of Brazilian CNPJ company registration data, including tax status, address, and...](https://apiant.ai/connections/cnpja) Reviews ## What our customers say ## More from Basecamp 3 - [ **Basecamp 3 to FreeAgent** FreeAgent is cloud accounting software for small businesses and freelancers — manage contacts, invoices...](https://apiant.ai/connect/basecamp-3-to-freeagent) - [ **Basecamp 3 to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/basecamp-3-to-hubspot) - [ **Basecamp 3 to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/basecamp-3-to-salesforce) - [ **Basecamp 3 to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/basecamp-3-to-slack) - [ **Basecamp 3 to Google Sheets** Google Sheets](https://apiant.ai/connect/basecamp-3-to-google-sheets) - [ **Basecamp 3 to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/basecamp-3-to-gmail) ## More into Cnpja - [ **HubSpot to Cnpja** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-cnpja) - [ **Salesforce to Cnpja** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-cnpja) - [ **Slack to Cnpja** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-cnpja) - [ **Google Sheets to Cnpja** Google Sheets](https://apiant.ai/connect/google-sheets-to-cnpja) - [ **Gmail to Cnpja** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-cnpja) - [ **Google Calendar to Cnpja** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-cnpja) Questions ## Basecamp 3 and Cnpja, answered ### ### What can start an automation from Basecamp 3? Any of Basecamp 3's 3 triggers in the catalog, including New Project, New To-do and New To-do in any project. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Cnpja when something happens in Basecamp 3? 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 it also run from Cnpja to Basecamp 3? Cnpja has no triggers in the catalog today, so automations start in Basecamp 3. If you need the other direction, ask: your agent reads Cnpja's API documentation and adds it. ### ### Do I have to build a connector for Basecamp 3 or Cnpja? No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running. ### ### Can my AI client use Basecamp 3 and Cnpja without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in either app 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. One connection covers both. ### ### 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.