Bankless Onchain MCP 服务器
通过Bankless API进行区块链数据交互的MCP(模型上下文协议)服务器。
概述
Bankless Onchain MCP 服务器提供了一个通过 Bankless API 与链上数据交互的框架。它实现了模型上下文协议 (MCP),允许 AI 模型以结构化的方式访问区块链状态和事件数据。
https://github.com/user-attachments/assets/95732dff-ae5f-45a6-928a-1ae17c0ddf9d
Related MCP server: EVM MCP Server
特征
服务器提供以下链上数据操作:
合同运营
读取合约状态(
read_contract):从各种区块链网络上的智能合约读取状态。参数:网络、合约地址、方法、输入、输出
返回:带有类型值的合约调用结果
获取代理(
get_proxy):检索代理实现合约地址。参数:网络、合约地址
返回:执行合约地址
获取 ABI (
get_abi):获取合约的 ABI(应用程序二进制接口)。参数:网络、合约地址
返回:JSON格式的合约ABI
获取源代码(
get_source):检索已验证合约的源代码。参数:网络、合约地址
返回:源代码、ABI、编译器版本和其他合约元数据
事件操作
获取事件(
get_events):根据主题获取合约的事件日志。参数:网络、地址、主题、可选主题
返回:过滤后的事件日志
构建事件主题(
build_event_topic):根据事件名称和参数类型生成事件主题签名。参数:网络、事件名称、参数类型
返回:事件主题哈希
事务操作
获取交易历史记录(
get_transaction_history):检索用户地址的交易历史记录。参数:网络、用户地址、可选合约、可选方法ID、可选起始块、包含数据标志
返回:包含哈希、数据、网络和时间戳的交易列表
获取交易信息(
get_transaction_info):获取有关特定交易的详细信息。参数:网络、交易哈希
返回:交易详情,包括区块号、时间戳、发件人/收件人地址、价值、gas 信息、状态和收据数据
工具
读取合同
从区块链读取合约状态
输入:
network(字符串,必需):区块链网络(例如“以太坊”,“多边形”)contract(字符串,必需):合约地址method(字符串,必需):要调用的合约方法inputs(数组,必需):方法调用的输入参数,每个参数包含:type(字符串):输入参数的类型(例如,“address”、“uint256”)value(任意):输入参数的值
outputs(数组,必需):预期的输出类型,每个类型包含:type(字符串):预期的输出类型
返回合约调用结果数组
获取代理
获取给定网络和合约的代理地址
输入:
network(字符串,必需):区块链网络(例如“以太坊”,“基础”)contract(字符串,必需):合约地址
返回代理合约的实现地址
获取事件
获取给定网络和过滤条件的事件日志
输入:
network(字符串,必需):区块链网络(例如“以太坊”,“基础”)addresses(数组,必需):用于过滤事件的合约地址列表topic(字符串,必需):过滤事件的主要主题optionalTopics(数组,可选):可选的附加主题(可以包含空值)
返回包含符合过滤条件的事件日志的对象
构建事件主题
根据事件名称和参数构建事件主题签名
输入:
network(字符串,必需):区块链网络(例如“以太坊”,“基础”)name(字符串,必需):事件名称(例如,“Transfer(address,address,uint256)”)arguments(数组,必需):事件参数类型,每个包含:type(字符串):参数类型(例如,“address”、“uint256”)
返回包含事件签名的 keccak256 哈希值的字符串
安装
npm install @bankless/onchain-mcp用法
环境设置
使用服务器前,请设置您的 Bankless API 令牌。有关如何获取 Bankless API 令牌的详细信息,请访问https://docs.bankless.com/bankless-api/other-services/onchain-mcp
export BANKLESS_API_TOKEN=your_api_token_here运行服务器
可以直接从命令行运行服务器:
npx @bankless/onchain-mcp与 LLM 工具一起使用
此服务器实现了模型上下文协议 (MCP),因此可以用作兼容 AI 模型的工具提供程序。以下是每个工具的一些示例调用:
读取合同
// Example call
{
"name": "read_contract",
"arguments": {
"network": "ethereum",
"contract": "0x1234...",
"method": "balanceOf",
"inputs": [
{ "type": "address", "value": "0xabcd..." }
],
"outputs": [
{ "type": "uint256" }
]
}
}
// Example response
[
{
"value": "1000000000000000000",
"type": "uint256"
}
]获取代理
// Example call
{
"name": "get_proxy",
"arguments": {
"network": "ethereum",
"contract": "0x1234..."
}
}
// Example response
{
"implementation": "0xefgh..."
}获取事件
// Example call
{
"name": "get_events",
"arguments": {
"network": "ethereum",
"addresses": ["0x1234..."],
"topic": "0xabcd...",
"optionalTopics": ["0xef01...", null]
}
}
// Example response
{
"result": [
{
"removed": false,
"logIndex": 5,
"transactionIndex": 2,
"transactionHash": "0x123...",
"blockHash": "0xabc...",
"blockNumber": 12345678,
"address": "0x1234...",
"data": "0x...",
"topics": ["0xabcd...", "0xef01...", "0x..."]
}
]
}构建事件主题
// Example call
{
"name": "build_event_topic",
"arguments": {
"network": "ethereum",
"name": "Transfer(address,address,uint256)",
"arguments": [
{ "type": "address" },
{ "type": "address" },
{ "type": "uint256" }
]
}
}
// Example response
"0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"发展
从源代码构建
# Clone the repository
git clone https://github.com/Bankless/onchain-mcp.git
cd onchain-mcp
# Install dependencies
npm install
# Build the project
npm run build调试模式
npm run debug与人工智能模型的集成
要将此服务器与支持 MCP 的 AI 应用程序集成,请将以下内容添加到应用程序的服务器配置中:
{
"mcpServers": {
"bankless": {
"command": "npx",
"args": [
"@bankless/onchain-mcp"
],
"env": {
"BANKLESS_API_TOKEN": "your_api_token_here"
}
}
}
}错误处理
服务器针对不同的场景提供了特定的错误类型:
BanklessValidationError:输入参数无效BanklessAuthenticationError:API 令牌问题BanklessResourceNotFoundError:未找到请求的资源BanklessRateLimitError:超出 API 速率限制
提示技巧
为了指导 LLM 模型使用 Bankless Onchain MCP 服务器,可以使用以下提示:
ROLE:
• You are Kompanion, a blockchain expert and EVM sleuth.
• You specialize in navigating and analyzing smart contracts using your tools and resources.
HOW KOMPANION CAN HANDLE PROXY CONTRACTS:
• If a contract is a proxy, call your “get_proxy” tool to fetch the implementation contract.
• If that fails, try calling the “implementation” method on the proxy contract.
• If that also fails, try calling the “_implementation” function.
• After obtaining the implementation address, call “get_contract_source” with that address to fetch its source code.
• When reading or modifying the contract state, invoke implementation functions on the proxy contract address (not directly on the implementation).
HOW KOMPANION CAN HANDLE EVENTS:
• Get the ABI and Source of the relevant contracts
• From the event types in the ABI, construct the correct topics for the event relevant to the question
• use the "get_event_logs" tool to fetch logs for the contract
KOMPANION'S RULES:
• Do not begin any response with “Great,” “Certainly,” “Okay,” or “Sure.”
• Maintain a direct, technical style. Do not add conversational flourishes.
• If the user’s question is unrelated to smart contracts, do not fetch any contracts.
• If you navigate contracts, explain each step in bullet points.
• Solve tasks iteratively, breaking them into steps.
• Use bullet points for lists of steps.
• Never assume a contract’s functionality. Always verify with examples using your tools to read the contract state.
• Before responding, consider which tools might help you gather better information.
• Include as much relevant information as possible in your final answer, depending on your findings.
HOW KOMPANION CAN USE TOOLS:
• You can fetch contract source codes, ABIs, and read contract data by using your tools and functions.
• Always verify the source or ABI to understand the contract rather than making assumptions.
• If you need to read contract state, fetch its ABI (especially if the source is lengthy).
FINAL INSTRUCTION:
• Provide the best possible, concise answer to the user’s request. If it's not an immediate question but an instruction, follow it directly.
• Use your tools to gather any necessary clarifications or data.
• Offer a clear, direct response and add a summary of what you did (how you navigated the contracts) at the end.执照
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