Vinkius
MCP Server

Harmonyscan MCP for AI. Read Any Harmony Blockchain Data Instantly

Claude Claude
ChatGPT ChatGPT
Cursor Cursor
Gemini Gemini
Windsurf Windsurf
VS Code VS Code
JetBrains JetBrains
Vercel Vercel
See Vinkius in Action

Works with every AI agent you already use

…and any MCP-compatible client

Harmonyscan (Harmony One Block Explorer API) MCP on Cursor AI Code EditorHarmonyscan (Harmony One Block Explorer API) MCP on Claude Desktop AppHarmonyscan (Harmony One Block Explorer API) MCP on OpenAI Agents SDKHarmonyscan (Harmony One Block Explorer API) MCP on Visual Studio CodeHarmonyscan (Harmony One Block Explorer API) MCP on GitHub Copilot AI AgentHarmonyscan (Harmony One Block Explorer API) MCP on Google Gemini AIHarmonyscan (Harmony One Block Explorer API) MCP on Lovable AI DevelopmentHarmonyscan (Harmony One Block Explorer API) MCP on Mistral AI AgentsHarmonyscan (Harmony One Block Explorer API) MCP on Amazon AWS Bedrock

How this MCP server connects to your AI agent

Harmonyscan (Harmony One Block Explorer API) gives your AI client deep read access to the Harmony blockchain data. It lets you query things like specific wallet balances, track complex token transfers, audit smart contracts for their source code, and monitor total network supply—all without opening a browser.

You get real-time insight into ONE transactions and contract activity directly from your agent.

What AI agents can do with Harmonyscan (Harmony One Block Explorer API) Automation

Get abi

Retrieves the Application Binary Interface (ABI) necessary for interacting with a specific smart contract.

Get balance multi

Calculates and returns the ONE balances for a list of multiple addresses simultaneously.

Get balance

Checks the current ONE balance associated with a single crypto wallet address.

+ 11 more capabilities included
Check account balances

Determine the current ONE balance for one or many specific addresses.

Analyze transaction history

Retrieve a detailed list of all normal, internal, and token-specific transfers connected to an address.

Audit smart contracts

Get the full source code and Application Binary Interface (ABI) for any contract deployed on the network.

Monitor network metrics

Fetch critical data points like the total ONE supply, current block rewards, or real-time price feeds.

Verify transaction status

Check if a specific transaction has been executed successfully or is still pending confirmation.

Included with Plan

Waiting for input…

AI Agent

What AI agents can do with Harmonyscan (Harmony One Block Explorer API) with 14 Tools

These tools let you pull every piece of blockchain data needed for deep analysis, from simple balance checks to complex contract auditing.

Make your AI actually useful.

Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.

Start using Harmonyscan (Harmony One Block Explorer API) on Vinkius

Get Abi

Retrieves the Application Binary Interface (ABI) necessary for interacting with a specific smart contract.

Get Balance Multi

Calculates and returns the ONE balances for a list of multiple addresses...

Get Balance

Checks the current ONE balance associated with a single crypto wallet address.

Get Block Reward

Fetches information regarding the block rewards provided by the Harmony One network.

Get Logs

Retrieves event logs emitted by smart contracts during specific transactions.

Get One Price

Provides the most recent recorded price for one ONE token.

Get One Supply

Determines and reports the total circulating supply of the ONE token on the network.

Get Source Code

Retrieves the verified original source code for a given smart contract address.

Get Status

Verifies whether a transaction has finished executing and what its final status was.

Get Token Tx

Lists all recorded events for HRC20 token transfers, showing who sent tokens to whom.

Get Tx List Internal

Retrieves a record of internal transactions, which are calls made from one contract...

Get Tx List

Pulls a comprehensive list of standard transactions that occurred on the network.

Get Tx Receipt Status

Checks the detailed receipt status for a transaction hash, providing granular execution details.

Proxy Request

Executes standard JSON-RPC calls against the blockchain using a generic proxy method.

Security and governance baked right in.

Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.

Claude AI

Claude AI

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 Harmonyscan integration is available immediately — no restart needed.

Choose How to Get Started

Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.

Build Your Own

Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.

  • Import from OpenAPI, Swagger, or YAML specs
  • Create Agent Skills with progressive disclosure
  • Deploy to edge with MCPFusion framework
  • Built in DLP, auth, and compliance on every call
  • Real time usage dashboard and cost metering
  • Publish to catalog or keep private
Start building

Make Your AI Do More

Start with Harmonyscan (Harmony One Block Explorer API), then connect any of our 5,100+ other servers whenever your AI needs more. One click, no limits.

  • Use this MCP plus 5,100+ others, all in one place
  • Add new capabilities to your AI anytime you want
  • Every connection is secured and compliant automatically
  • Track usage and costs across all your servers
  • Works with Claude, ChatGPT, Cursor, and more
  • New servers added to the catalog every week

VINKIUS INFRASTRUCTURE

Cloud Hosted

Managed infra

V8 Isolated

Sandboxed per request

Zero-Trust Proxy

No stored credentials

DLP Enforced

Policy on every call

GDPR Compliant

EU data residency

Token Compression

~60% cost reduction

Your data is protected. See how we built it.

Built on the Model Context Protocol (MCP) for Claude, ChatGPT, Cursor, and more

The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.

This connection provides 14 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.

Tracking Funds on Harmony One Used to Be a Pain.

Today, tracing asset movements means opening the block explorer, searching by address, scrolling through pages of raw data, and manually correlating token transfers with internal contract calls. You end up copy-pasting 50 different transaction hashes just to map out a single liquidity event.

With this MCP, you simply ask your agent for the full history or specific logs. Your AI client pulls together all those disparate pieces—the normal transactions, the internal calls, and the token transfers—and presents it in one clean data package.

Get Contract Source Code and ABI with `get_abi`

Before writing a single line of integration code, developers used to have to manually find the contract's address, then separately locate its source code and ABI. This was a tedious round-trip process that stalled development for hours.

Now, you ask your agent to run `get_abi` on the target contract. It hands over the complete interface definition immediately. You can start building against the contract instantly.

What your AI can actually do with this

Harmonyscan connects your AI agent to the Harmony One network, letting you inspect everything happening on the blockchain. Instead of manually hopping between tabs and reading endless transaction hashes in a web explorer, your agent pulls all the data for you. You can check balances across multiple addresses at once or track down every internal transfer that occurred within a smart contract.

Need to know how a specific contract works? Your agent fetches the full source code and the required ABI automatically. This capability means analyzing complex DeFi movements or tracking whale wallets becomes a simple conversation with your AI client, all managed through Vinkius’s catalog.

Built · Hosted · Managed by Vinkius Harmonyscan MCP - Harmony Blockchain Data Access
Server ID 019e5d22-dae8-7112-bc90-8ac8890c77d7
Vinkius Inspector
Compliance Grade A+
Score 98.33/100
Vinkius Inspector Badge — Score 98.33/100

Questions you might have

How do I find out if a transaction succeeded? (Using get_status) +

You check execution status using get_status. This tells you whether the network accepted and completed the transaction for that hash.

What is the difference between get_tx_list and get_tx_list_internal? +

get_tx_list shows transactions initiated by wallets, while get_tx_list_internal reveals calls made from one smart contract to another—crucial for understanding complex DeFi flows.

How do I audit a contract's logic? (Using get_source_code) +

To audit, use get_source_code to pull the verified original code. You can then pair this with get_abi to understand exactly which functions are available for interaction.

Can I check multiple wallet balances at once? (Using get_balance_multi) +

Yes, use get_balance_multi. It takes a list of addresses and returns the ONE balance for every single one in that list efficiently.

I need to know how to get the ABI using `get_abi` for a contract. +

You request the specific Application Binary Interface (ABI) needed to interact with that contract. The ABI is essentially a roadmap; it tells your AI client exactly which functions the contract supports and what inputs they require.

What kind of information can I pull using `get_logs`? +

get_logs retrieves event logs, showing specific actions or signals emitted by a smart contract. These are often critical internal events that aren't visible in the main transaction list but confirm business logic execution.

Does `get_token_tx` track token movements differently than general transactions? +

Yes, get_token_tx focuses specifically on HRC20 token transfers. It isolates the movement of fungible tokens, making it much easier to audit pure asset flow separate from other contract interactions.

How do I find out what block rewards are using `get_block_reward`? +

get_block_reward provides the current distribution of block rewards. This tells you what incentives or tokens are paid out to validators and miners for processing new blocks on the Harmony One network.

Can I check the balance of multiple Harmony addresses at once? +

Yes! Use the get_balance_multi tool and provide a comma-separated list of addresses (up to 20). The agent will return the ONE balance for each address in a single response.

How do I verify if a specific transaction was successful or failed? +

You can use the get_status tool with the transaction hash. It returns a status code where '1' indicates success and '0' indicates failure, along with any available error messages.

Is it possible to retrieve the source code of a smart contract? +

Yes, provided the contract is verified on Harmonyscan. Use the get_source_code tool with the contract address to get the Solidity source code, compiler version, and optimization settings.

Built & Managed by Vinkius 30s setup 14 tools

We've already built the connector for Harmonyscan. Just plug in your AI agents and start using Vinkius.

No hosting. No infrastructure. No complex setup.
All 14 tools are live and waiting. You're up and running in seconds.

Vinkius runs on Claude Claude
Vinkius runs on ChatGPT ChatGPT
Vinkius runs on Cursor Cursor
Vinkius runs on Gemini Gemini
Vinkius runs on Windsurf Windsurf
Vinkius runs on VS Code VS Code
Vinkius runs on JetBrains JetBrains
Vinkius runs on Vercel Vercel
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