How to Use the GetBlock (Web3 RPC Provider) MCP in AutoGen

Q: How do I configure the GetBlock (Web3 RPC Provider) MCP Server in AutoGen?

Install autogen-extmcp. Use mcpservertools with StreamableHttpServerParams to fetch the tool definitions, then pass them directly into your AssistantAgent constructor.

Q: Can agents construct transactions before sending them?

Definitely. An agent can use btccreatepsbt to build a transaction, pass it to another agent for review, and only broadcast it when consensus is reached.

Give your AutoGen agents access to GetBlock (Web3 RPC Provider). Build multi-agent systems that debate and execute on-chain transactions.

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Connect GetBlock (Web3 RPC Provider) MCP to AutoGen

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Setup GetBlock (Web3 RPC Provider) with AutoGen

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Consensus-Driven Execution

You don't want a single script firing off transactions blindly. AutoGen lets you build a system where a Security Agent and an Execution Agent debate the payload. The Security Agent runs `btc_analyzepsbt` to verify the inputs and outputs of a Partially Signed Bitcoin Transaction. If the analysis looks clean, the Execution Agent takes over and calls `btc_sendrawtransaction`. They negotiate the risk. If gas is too high based on `eth_estimate_gas`, a third Finance Agent can step in and veto the broadcast until the network cools down.

Multi-Agent Debugging via MCP Server

Smart contract failures require different perspectives. When a transaction reverts, your Lead Developer agent grabs the hash and orders the QA agent to run `debug_trace_transaction`. The QA agent parses the trace logs and identifies the exact failing opcode. It then hands the data back to the Lead Developer, who proposes a fix using `eth_call` to test the updated parameters against the current block state. The server acts as the shared terminal they both use to investigate the issue.

Cross-Chain Arbitrage Monitoring

You can spin up dedicated agents for different networks. Give one agent `sol_get_latest_blockhash` and `sol_get_balance`, and another agent `eth_block_number`. They monitor GetBlock endpoints independently. When conditions align, they signal a central coordinator agent. The coordinator evaluates the state of both chains and decides whether to trigger a cross-chain swap. You get autonomous monitoring without writing complex async polling loops from scratch.

Setup guide

Set up GetBlock (Web3 RPC Provider) MCP in AutoGen

Prerequisites

Python 3.10+ installed
autogen-ext[mcp] package
Active Vinkius subscription with a valid endpoint token

1

Install AutoGen with MCP
Run pip install "autogen-ext[mcp]" autogen-agentchat. The MCP extension includes mcp_server_tools for stateless tool access.
2

Fetch tools from the MCP
Call mcp_server_tools(SseServerParams(url=...)) with your Vinkius endpoint. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Run your agent
Pass the tools to AssistantAgent and call agent.run(). The agent invokes GetBlock (Web3 RPC Provider) tools and returns structured results.

agent.py

from autogen_ext.tools.mcp import SseServerParams, mcp_server_tools
from autogen_agentchat.agents import AssistantAgent
from autogen_ext.models.openai import OpenAIChatCompletionClient

server_params = SseServerParams(
    url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
)

tools = await mcp_server_tools(server_params)

agent = AssistantAgent(
    name="GetBlock (Web3 RPC Provider)_assistant",
    model_client=OpenAIChatCompletionClient(model="gpt-4o"),
    tools=tools,
)

result = await agent.run("List recent GetBlock (Web3 RPC Provider) data")
print(result.messages[-1].content)

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Prerequisites

Python 3.10+ installed
autogen-ext[mcp] + autogen-agentchat
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Same packages as above. McpWorkbench is ideal when your agent needs stateful sessions across multiple tool calls.
2

Use McpWorkbench as context manager
Wrap your agent in async with McpWorkbench(...) to maintain shared state and resources. The workbench manages the full MCP session lifecycle.
3

Run with workbench
Pass workbench=workbench to your agent. State is preserved across multiple tool calls within the same session.

agent.py

from autogen_ext.tools.mcp import McpWorkbench, SseServerParams
from autogen_agentchat.agents import AssistantAgent
from autogen_ext.models.openai import OpenAIChatCompletionClient

server_params = SseServerParams(
    url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
)

async with McpWorkbench(server_params) as workbench:
    agent = AssistantAgent(
        name="GetBlock (Web3 RPC Provider)_assistant",
        model_client=OpenAIChatCompletionClient(model="gpt-4o"),
        workbench=workbench,
    )

    result = await agent.run("List recent GetBlock (Web3 RPC Provider) data")
    print(result.messages[-1].content)

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 GetBlock. 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 GetBlock (Web3 RPC Provider) MCP in AutoGen

Install `autogen-ext[mcp]`. Use `mcp_server_tools` with `StreamableHttpServerParams` to fetch the tool definitions, then pass them directly into your `AssistantAgent` constructor.

Yes. You can provide the same tool list to every agent in your chat, or restrict specific tools like `sol_send_transaction` to a designated execution agent.

You instruct your agents to handle 429 errors gracefully. If an agent hits a rate limit calling `eth_get_balance`, it can inform the group to pause execution before retrying.

Definitely. An agent can use `btc_createpsbt` to build a transaction, pass it to another agent for review, and only broadcast it when consensus is reached.

The server handles transaction hashes, block numbers, and public keys. AutoGen's `McpToolAdapter` ensures the schema conversion happens locally. Authentication tokens for GetBlock remain securely injected at the transport level, invisible to the LLM agents debating the execution.

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