How to Use the Cronoscan (Cronos Block Explorer) MCP in Google ADK

Q: Can I limit the tools my Gemini agent can use from the Cronoscan (Cronos Block Explorer) server?

Yes, the Google ADK's McpToolset allows you to pass a toolnames filter. This lets you expose only a specific subset of tools from this MCP Server to your agent, which is a good security practice.

Q: What kind of Cronos transaction data can I get with Cronoscan (Cronos Block Explorer) and Google ADK?

You can get a lot. Your agent can call gettxlist for normal transactions, gettxlistinternal for internal ones, and gettxreceiptstatus to check if a transaction succeeded. It's everything you need to track on-chain activity.

Q: Is it possible to get smart contract ABIs using this toolset?

Absolutely. The getabi tool in this MCP Server lets your agent fetch the ABI for any verified contract on Cronos. You can also get the full source code with getsourcecode.

Connect Gemini agents to the Cronos blockchain using Google ADK. Query on-chain data and feed it directly into your BigQuery workflows.

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Connect Cronoscan (Cronos Block Explorer) MCP to Google ADK

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Setup Cronoscan (Cronos Block Explorer) with Google ADK

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Ingest On-Chain Data to BigQuery

Use this MCP Server to pull Cronos data for your Google Cloud projects. Your Gemini agent can fetch token transfer events with `get_token_tx` and `get_token_nft_tx`, then pass that structured data right into a BigQuery pipeline. It's a direct line from on-chain activity to your enterprise data warehouse. The ADK's native GCP integration means you don't write custom ETL scripts. Just have your agent call tools like `get_tx_list` and `get_logs`. Gemini's long-context window is great for analyzing huge transaction histories or log data in a single session.

Perform On-Chain Analysis with Gemini

Your agent can run deep on-chain analysis. It can check the total supply of CRO with `get_eth_supply` or any ERC20 token with `get_token_supply`. You can also get the current CRO price with `get_eth_price`. Combine these data points within a single agent session. An agent could check a token's supply, find its largest holders by analyzing `get_token_tx` events, and then check their CRO balances with `get_balance_multi`. This plays right into Gemini's advanced reasoning skills.

Connect Google ADK to the Cronos Blockchain

This toolset is your agent's bridge to the Cronos network. You can query specific block data with `proxy_eth_get_block_by_number` or look up a transaction directly by its hash using `proxy_eth_get_transaction_by_hash`. It's all managed through the `McpToolset` class in the ADK. Because you can filter which tools are exposed, you can build specialized agents for different tasks. One agent might only have access to `get_balance`, while a privileged agent could use `proxy_eth_call` to simulate contract interactions. This MCP Server gives you that control.

Setup guide

Set up Cronoscan (Cronos Block Explorer) MCP in Google ADK

Prerequisites

Python 3.10+ installed
google-adk package (pip install google-adk)
Active Vinkius subscription with a valid endpoint token

1

Install Google ADK

Run pip install google-adk to install the Agent Development Kit. MCP support is included via the McpToolset class.
2

Connect via SSE transport

Use McpToolset.from_server() with SseServerParams pointing to your Vinkius endpoint. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Create an LlmAgent

Pass the returned mcp_tools list directly to LlmAgent(tools=mcp_tools). The ADK maps each MCP tool to a native Gemini function call — no manual schema definitions required.
4

Run with any Gemini model

The agent works with any Gemini model (gemini-2.0-flash, gemini-2.5-pro, etc.). Copy the full example on the right to get started with Cronoscan (Cronos Block Explorer) tools in your ADK agent.

agent.py

from google.adk.agents import LlmAgent
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import SseServerParams

# Connect to the MCP via SSE
mcp_tools, exit_stack = await McpToolset.from_server(
    connection_params=SseServerParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    )
)

# Create your agent with auto-discovered tools
agent = LlmAgent(
    name="Cronoscan (Cronos Block Explorer)_agent",
    model="gemini-2.0-flash",
    instruction="You have access to Cronoscan (Cronos Block Explorer) tools via MCP.",
    tools=mcp_tools,
)

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Common questions about Cronoscan (Cronos Block Explorer) MCP in Google ADK

The Cronoscan (Cronos Block Explorer) MCP Server provides the tools, and Google ADK lets your Gemini agent call them. The agent can then use its native Google Cloud integrations to push the on-chain data it gets directly into a BigQuery table for analysis.

Yes, the Google ADK's `McpToolset` allows you to pass a `tool_names` filter. This lets you expose only a specific subset of tools from this MCP Server to your agent, which is a good security practice.

You can get a lot. Your agent can call `get_tx_list` for normal transactions, `get_tx_list_internal` for internal ones, and `get_tx_receipt_status` to check if a transaction succeeded. It's everything you need to track on-chain activity.

Absolutely. The `get_abi` tool in this MCP Server lets your agent fetch the ABI for any verified contract on Cronos. You can also get the full source code with `get_source_code`.

The server only sees public Cronos data you ask for, such as contract addresses or block numbers. It doesn't access your Google Cloud account. Each request runs in an ephemeral Vinkius sandbox, and the Google ADK manages the connection, keeping your GCP credentials secure and separate from the tool execution.

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