How to Use the Maranhão Open Data MCP in Claude Code

Q: How do I add the Maranhão Open Data server to Claude Code?

Run the claude mcp add command pointing to the server's endpoint. Once added, your CLI agent can access all six data tools instantly.

Q: Can I pipe the output of Maranhão Open Data tools inside Claude Code?

Yes. You can tell Claude Code to run searchdatastore, format the output as JSON, and pipe it directly into local files or tools like jq.

Q: How does Claude Code run Maranhão Open Data SQL queries?

Use Claude Code to trigger searchdatastoresql with your custom query, and the server returns the filtered dataset rows directly to your terminal.

Q: How do I list all available datasets in Claude Code?

Have your CLI agent run listpackages to get a clean list of all datasets hosted on the Maranhão portal.

Pipe raw Maranhão public datasets directly into your local Claude Code scripts and terminal pipelines.

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Setup Maranhão Open Data with Claude Code

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Headless pipelines with Claude Code

The `list_packages` and `get_package` tools let your CLI agent fetch dataset metadata directly from the command line. Run your data collection pipelines without ever opening a browser or writing custom python scrapers. You can run commands to pull the latest state dataset metadata, format it, and pipe it into local files. It is built for developers who want raw data fast, straight to stdout.

Terminal-based SQL execution on public data

The `search_datastore_sql` tool executes raw SQL queries against remote Brazilian datastores from your terminal. No need to set up local Postgres instances or download gigabytes of raw CSVs. Your CLI agent executes the SQL query, extracts the specific columns you need, and outputs clean JSON. It makes checking live government records as fast as running a local grep command.

Fast package searching via CLI

Your agent runs `search_packages` and `get_resource` to find specific dataset endpoints inside your terminal session. Search through thousands of Brazilian public datasets in seconds. It bypasses the slow web interfaces of public portals. You get immediate access to resource URLs and metadata, ready to be used in your curl commands or bash scripts.

Setup guide

Set up Maranhão Open Data MCP in Claude Code

Prerequisites

Claude Code CLI installed (npm install -g @anthropic-ai/claude-code)
Active Vinkius subscription with a valid endpoint token

1

Run the add command

Open your terminal and run the command shown on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com. Use --scope user to make it available across all projects.
2

Verify the connection

Start a Claude Code session and type /mcp to list connected servers. You should see maranhao-open-data-mcp with a green status indicator.
3

Start using tools

Ask Claude Code something like "Check my latest Maranhão Open Data transactions." It will automatically discover and invoke the available Maranhão Open Data tools.

Terminal

claude mcp add --transport http maranhao-open-data-mcp https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

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Prerequisites

Claude Code CLI installed
Active Vinkius subscription with a valid endpoint token

1

Open the config file

Create or edit .mcp.json in your project root for project-level scope, or ~/.claude.json for user-level scope.
2

Add the Maranhão Open Data MCP

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

Restart Claude Code

Start a new Claude Code session. Type /mcp to confirm the server is connected. The tools will be automatically available in your conversation.

.mcp.json

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

Get your connection token →

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Common questions about Maranhão Open Data MCP in Claude Code

Run the `claude mcp add` command pointing to the server's endpoint. Once added, your CLI agent can access all six data tools instantly.

Yes. You can tell Claude Code to run `search_datastore`, format the output as JSON, and pipe it directly into local files or tools like jq.

Use Claude Code to trigger `search_datastore_sql` with your custom query, and the server returns the filtered dataset rows directly to your terminal.

Have your CLI agent run `list_packages` to get a clean list of all datasets hosted on the Maranhão portal.

The server runs in a secure, isolated sandbox and only sends read-only CKAN queries to the Maranhão public data portal. Your terminal history, shell environment variables, and local system files are never exposed.

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