How to Use the Maranhão Open Data MCP in Claude

Q: How do I install the Maranhão Open Data tools on Claude Desktop?

Open your claudedesktopconfig.json file and add the Maranhão Open Data server configuration under the mcpServers key. After restarting, this MCP Server registration enables your Claude Desktop agent to show the new tools next to the chat box.

Q: Can I run SQL queries on Maranhão Open Data using Claude Desktop?

Yes, your Claude Desktop agent uses the searchdatastoresql tool to execute queries against the Maranhão portal datastore directly from your chat. Raw tabular responses appear instantly in your workspace.

Q: What happens if a dataset in Maranhão Open Data is too large for Claude Desktop?

Your Claude Desktop client won't choke because it uses searchdatastore to filter the Maranhão records on the remote server first. This keeps your local chat context clean and fast.

Q: How do I list all available Maranhão packages in Claude Desktop?

Ask your Claude Desktop agent to run listpackages to pull the active registry from the Maranhão portal. It pulls the entire active registry and displays them in a clean list inside your conversation.

Pull raw Maranhão public records and run SQL queries directly inside your Claude Desktop chat.

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Setup Maranhão Open Data with Claude Desktop

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Query Maranhão SQL databases in Claude Desktop

Running raw SQL queries against the Maranhão state datastore is straightforward using the `search_datastore_sql` tool inside Claude Desktop. You get immediate answers back in your local Claude Desktop window without manually downloading massive Brazilian government CSV files.

Discover public datasets with quick keyword searches

Finding specific Maranhão registries is quick when your Claude Desktop agent calls the `search_packages` tool to scan the portal. You don't have to click through broken web links anymore. Once your Claude Desktop agent finds a match, it grabs the Maranhão metadata using `get_package` to inspect the schema. You see what columns and resources exist before committing to a larger download.

Inspect specific government resources locally

Isolating a single file from a massive Maranhão dataset is simple when your Claude Desktop client calls `get_resource` via the MCP interface. You avoid downloading the entire database just to check one table. If you need to peek inside, `search_datastore` filters the actual Maranhão rows based on your specific criteria inside the Claude Desktop chat. This workflow turns your local app into an immediate portal for Brazilian state data.

Setup guide

Set up Maranhão Open Data MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Maranhão Open Data MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Maranhão Open Data MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under maranhao-open-data-mcp.

json

{
  "mcpServers": {
    "maranhao-open-data-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Maranhão Open Data. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Maranhão Open Data MCP in Claude Desktop

Open your claude_desktop_config.json file and add the Maranhão Open Data server configuration under the mcpServers key. After restarting, this MCP Server registration enables your Claude Desktop agent to show the new tools next to the chat box.

Yes, your Claude Desktop agent uses the `search_datastore_sql` tool to execute queries against the Maranhão portal datastore directly from your chat. Raw tabular responses appear instantly in your workspace.

Your Claude Desktop client won't choke because it uses `search_datastore` to filter the Maranhão records on the remote server first. This keeps your local chat context clean and fast.

Ask your Claude Desktop agent to run `list_packages` to pull the active registry from the Maranhão portal. It pulls the entire active registry and displays them in a clean list inside your conversation.

This MCP Server only touches public Maranhão government records and CKAN metadata, meaning zero private Claude Desktop user data is ever processed. All communication with the Brazilian state's endpoint goes through a secure HTTPS tunnel managed by Vinkius, leaving your Claude Desktop machine isolated.

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