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ChainFETCH MCP Server

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by chainfetch

get_address_summary

Generate AI-powered summaries for Ethereum addresses to understand account activity and blockchain interactions.

Instructions

Get AI-generated summary for a specific address

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
address_hashYesThe address hash to get summary for

Implementation Reference

  • index.js:122-135 (registration)
    Registration of the 'get_address_summary' tool in the listTools handler, including its name, description, and input schema definition.
    { name: 'get_address_summary', description: 'Get AI-generated summary for a specific address', inputSchema: { type: 'object', properties: { address_hash: { type: 'string', description: 'The address hash to get summary for', }, }, required: ['address_hash'], }, },
  • Input schema for the 'get_address_summary' tool, defining the required 'address_hash' parameter.
    inputSchema: { type: 'object', properties: { address_hash: { type: 'string', description: 'The address hash to get summary for', }, }, required: ['address_hash'], },
  • Handler implementation for 'get_address_summary' tool within the handleToolCall switch statement. It proxies the request to the ChainFETCH API summary endpoint using the general makeRequest helper.
    case 'get_address_summary': return await this.makeRequest('/api/v1/ethereum/addresses/summary', 'GET', args, null, token);
  • General-purpose HTTP request helper method 'makeRequest' used by the 'get_address_summary' handler (and all other tools) to make authenticated API calls to the ChainFETCH backend.
    async makeRequest(endpoint, method = 'GET', params = {}, body = null, token = null) { const chainfetchToken = token || process.env.CHAINFETCH_API_TOKEN; if (!chainfetchToken) { throw new McpError( ErrorCode.InvalidRequest, 'CHAINFETCH_API_TOKEN is required' ); } const url = new URL(`${API_BASE_URL}${endpoint}`); // Add query parameters for GET requests if (method === 'GET' && Object.keys(params).length > 0) { Object.entries(params).forEach(([key, value]) => { if (value !== undefined && value !== null) { if (Array.isArray(value)) { value.forEach(v => url.searchParams.append(`${key}[]`, v)); } else { url.searchParams.append(key, value.toString()); } } }); } const fetchOptions = { method, headers: { 'Authorization': `Bearer ${chainfetchToken}`, 'Content-Type': 'application/json', }, }; if (body && method !== 'GET') { fetchOptions.body = JSON.stringify(body); } const response = await fetch(url.toString(), fetchOptions); if (!response.ok) { const errorText = await response.text(); throw new McpError( ErrorCode.InternalError, `API request failed: ${response.status} ${response.statusText} - ${errorText}` ); } return await response.json(); }

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