How to Use the Nearblocks (Near Blockchain Explorer API) MCP in Google ADK

Q: How do I set up the Nearblocks (Near Blockchain Explorer API) server with a Google ADK agent?

You instantiate an McpToolset with the server's URL and pass it to your LlmAgent. The agent will then have access to all the NEAR blockchain query tools.

Q: Can I filter the tools from the Nearblocks (Near Blockchain Explorer API) for my Google ADK agent?

Yes, the McpToolset constructor accepts a toolnames filter. This lets you expose only a specific subset of the 11 tools, like getaccountdetails, to your agent.

Connect your Google ADK agent to the NEAR blockchain and analyze on-chain data alongside your datasets in BigQuery.

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Connect Nearblocks (Near Blockchain Explorer API) MCP to Google ADK

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Setup Nearblocks (Near Blockchain Explorer API) with Google ADK

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Correlate On-Chain and Off-Chain Data

Your Gemini-powered agent can now query the NEAR blockchain directly. Use `get_account_transactions` to pull an account's history, then feed that data into a prompt alongside your own customer data from Google Cloud. This lets you ask complex questions that span both worlds. For example, find all transactions from a list of accounts you have stored in BigQuery, and then summarize their on-chain NFT activity using `get_account_inventory`.

Analyze Network Trends with Long Context

The Google ADK is built for agents that need to reason over huge amounts of information. Your agent can call `get_token_list` and `get_recent_transactions` to gather a massive snapshot of network activity. With Gemini's 1M+ token context window, the agent can hold all this data in its memory. This allows it to spot trends, identify active contracts, and provide summaries without needing to make dozens of smaller, repeated calls.

Use this MCP Server in Google Cloud

This MCP server gives your agent 11 read-only tools for the NEAR blockchain. It's designed to run within your existing Google Cloud environment, letting your agent access on-chain data as if it were just another internal service. Just point the `McpToolset` to the server's endpoint. Your agent can immediately start using tools like `get_block_details` or `get_network_stats` to inform its decisions. No extra infrastructure to manage.

Setup guide

Set up Nearblocks (Near Blockchain Explorer API) 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 Nearblocks (Near Blockchain Explorer API) 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="Nearblocks (Near Blockchain Explorer API)_agent",
    model="gemini-2.0-flash",
    instruction="You have access to Nearblocks (Near Blockchain Explorer API) tools via MCP.",
    tools=mcp_tools,
)

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Common questions about Nearblocks (Near Blockchain Explorer API) MCP in Google ADK

You instantiate an `McpToolset` with the server's URL and pass it to your `LlmAgent`. The agent will then have access to all the NEAR blockchain query tools.

Yes, the `McpToolset` constructor accepts a `tool_names` filter. This lets you expose only a specific subset of the 11 tools, like `get_account_details`, to your agent.

Absolutely. The whole point is to let your Google ADK agent fetch live data from NEAR with tools like `get_account_transactions` and then reason about it in combination with your data in BigQuery.

The MCP standard means you don't write any integration code. Your agent understands the tools natively. This MCP server handles the connection, authentication, and data formatting for you.

The system operates on a zero-trust model. Your Google Cloud credentials and agent's private data are never shared. The server is a stateless proxy that only handles public blockchain data like token contract details and block information.

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