Any-API MCP Server

/* Convert an OpenAPI JSON file to tools.json for dynamic tool registration. Env: OPENAPI_FILE (required), TOOLS_FILE (default tools.json) */ import fs from 'node:fs'; import path from 'node:path'; const OPENAPI_FILE = process.env['OPENAPI_FILE'] ?? ''; const TOOLS_FILE = process.env['TOOLS_FILE'] ?? 'tools.json'; if (!OPENAPI_FILE) { console.error('Missing OPENAPI_FILE'); process.exit(1); } function loadJson(p: string): any { return JSON.parse(fs.readFileSync(p, 'utf8')); } function normalizeName(method: string, p: string): string { const segs = p.replace(/\{.*?\}/g, 'by').split('/').filter(Boolean).slice(-2); const base = segs.join('_').replace(/[^a-zA-Z0-9_]/g, '_'); return `${method.toLowerCase()}_${base || 'root'}`; } function buildTools(spec: any): any[] { const tools: any[] = []; const paths = spec.paths || {}; for (const [p, methods] of Object.entries<any>(paths)) { for (const [m, def] of Object.entries<any>(methods)) { const method = m.toUpperCase(); if (!['GET','POST','PUT','DELETE','PATCH'].includes(method)) continue; const name = (def.operationId && typeof def.operationId === 'string') ? def.operationId : normalizeName(method, p); const desc = def.summary || def.description || `${method} ${p}`; const params = Array.isArray(def.parameters) ? def.parameters : []; const pathParams = params.filter((x:any)=>x.in==='path').map((x:any)=>x.name); const queryParams = params.filter((x:any)=>x.in==='query').map((x:any)=>x.name); const hasBody = !!def.requestBody; tools.push({ name, description: desc, method, pathTemplate: p, pathParams, queryParams, hasBody, guarded: method !== 'GET' }); } } return tools; } function main(){ const spec = loadJson(path.resolve(process.cwd(), OPENAPI_FILE)); const tools = buildTools(spec); const output = { generatedAt: new Date().toISOString(), tools }; fs.writeFileSync(path.resolve(process.cwd(), TOOLS_FILE), JSON.stringify(output, null, 2)); console.log(TOOLS_FILE); } main();