How to Use the Harmonyscan (Harmony One Block Explorer API) MCP in Claude Code

Claude Code brings Harmony One data to your terminal. Query the chain directly from your CLI for faster DevOps and SRE workflows.

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Connect Harmonyscan (Harmony One Block Explorer API) MCP to Claude Code

Create your Vinkius account to connect Harmonyscan (Harmony One Block Explorer API) 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 Harmonyscan (Harmony One Block Explorer API) with Claude Code

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Headless Blockchain Queries with Claude Code

Pipe blockchain data into your shell scripts using `proxy_request` or `get_tx_list`. This server lets you integrate Harmony One data into your CI/CD pipelines or automated monitoring tasks. Because it runs in the terminal, you can chain these tools with standard unix utilities. It turns your CLI into a powerful interface for network observation.

Automated Network and Contract Auditing

Run audits on your smart contracts by pulling the ABI and source code via `get_abi` and `get_source_code`. Claude Code can then run static analysis or comparison checks on the returned data. This is ideal for automated deployment verification. You verify the on-chain code against your local repo in a single command.

Real-time Supply and Reward Monitoring

Fetch network-wide metrics like `get_one_supply` or `get_block_reward` to feed your monitoring dashboards. This keeps your infrastructure aware of current chain economics. It's a lightweight way to keep your terminal updated. You avoid the bloat of heavy indexers and stick to direct, fast API calls.

Setup guide

Set up Harmonyscan (Harmony One Block Explorer API) 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 harmonyscan-harmony-one-block-explorer-api-mcp with a green status indicator.
3

Start using tools

Ask Claude Code something like "Check my latest Harmonyscan (Harmony One Block Explorer API) transactions." It will automatically discover and invoke the available Harmonyscan (Harmony One Block Explorer API) tools.

Terminal

claude mcp add --transport http harmonyscan-harmony-one-block-explorer-api-mcp https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

Get your connection token →

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 Harmonyscan (Harmony One Block Explorer API) 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": {
    "harmonyscan-harmony-one-block-explorer-api-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 Harmonyscan. 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 Harmonyscan (Harmony One Block Explorer API) MCP in Claude Code

Use the 'claude mcp add' command in your terminal. Pass the transport and server URL to register the tools and start querying the Harmony chain.

Yes. Since it exposes standard tools, you can call them directly from your scripts. This makes Claude Code a great tool for automating block explorer lookups.

It is built for that. You can automate status checks on deployments by using the `get_tx_receipt_status` tool within your pipeline logic.

The connection uses an authenticated endpoint managed by Vinkius. You just provide the token, and the server manages the rest of the auth handshake.

No. The server only communicates with the Harmony One public API to fetch blockchain state. It has no access to your local files or network environment.

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