How to Use the Arcsecond.io MCP in Claude Code

Q: How do I use Claude Code to get a list of telescopes from Arcsecond.io and save it to a file?

It's a one-liner. Run claude mcp exec arcsecondio-mcp listtelescopes --observatory=... > telescopes.json. The JSON output from the Arcsecond.io tool is piped directly to a file.

Q: What's the command to connect the Arcsecond.io MCP server to Claude Code?

Run claude mcp add --transport http arcsecondio-mcp -- . Use claude mcp list to confirm the Arcsecond.io server is connected to Claude Code.

Pipe live astronomical data from Arcsecond.io directly into your shell scripts and CI/CD pipelines with Claude Code.

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Connect Arcsecond.io MCP to Claude Code

Create your Vinkius account to connect Arcsecond.io to Claude Code and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Arcsecond.io with Claude Code

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Script Your Star Searches

The `search_objects` tool lets you query for astronomical objects right from your terminal. The output is clean JSON, ready for other tools. This is built for automation with any MCP-compatible tool. You can pipe the output directly to `jq` to filter for a specific star's magnitude, or pass it to another script for processing. No parsing messy HTML, just raw data.

Monitor Observatories via this MCP Server

With the `list_night_logs` tool, you can build simple, powerful monitoring scripts. A one-line command gets you the latest observation logs for any observatory. Set up a cron job to check for new logs every hour. If new entries appear, you can trigger a notification or kick off a data processing pipeline. This MCP Server makes it easy to integrate real-world data into your backend jobs.

Integrate into CI/CD Workflows

Use the `get_account_check` tool as a health check in your deployment pipeline. It's a fast, simple way to confirm the Arcsecond.io connection is live before running data-dependent tests. You can also add a step in a GitHub Action to use `list_datasets` to make sure a critical dataset is available before deploying an application that relies on it. Since Claude Code is headless, it fits right into any CI/CD environment that can call an MCP.

Setup guide

Set up Arcsecond.io 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 arcsecondio-mcp with a green status indicator.
3

Start using tools

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

Terminal

claude mcp add --transport http arcsecondio-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 Arcsecond.io 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": {
    "arcsecondio-mcp": {
      "type": "url",
      "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 Arcsecond.io. 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 Arcsecond.io MCP in Claude Code

It's a one-liner. Run `claude mcp exec arcsecondio-mcp list_telescopes --observatory=... > telescopes.json`. The JSON output from the Arcsecond.io tool is piped directly to a file.

Yes, that's a primary use case for using Claude Code with Arcsecond.io. As long as your container has Claude Code installed and configured, you can call the MCP server just like you would from your local terminal.

Run `claude mcp add --transport http arcsecondio-mcp -- `. Use `claude mcp list` to confirm the Arcsecond.io server is connected to Claude Code.

You don't. Your connection URL includes a token that authenticates you with the Vinkius MCP gateway, so your scripts don't need to manage keys or secrets.

Claude Code pipes public astronomical data, like object coordinates and observatory equipment lists, from Arcsecond.io. Your connection is secured by your unique Vinkius endpoint token, and the MCP server itself runs in a zero-trust environment that is destroyed after use.

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