kagi-kan-mcp

import { readFileSync } from "fs"; import { join } from "path"; import { homedir } from "os"; /** * Read token from the default file location * @returns {string|null} Token string or null if file doesn't exist */ export function readTokenFromFile() { try { const tokenPath = join(homedir(), ".kagi_session_token"); const token = readFileSync(tokenPath, "utf8").trim(); return token || null; } catch (error) { if (error.code === "ENOENT") { return null; } throw new Error(`Failed to read token file: ${error.message}`); } } /** * Resolve token from multiple sources in priority order: * 1. Environment variable KAGI_SESSION_TOKEN * 2. Token file ~/.kagi_session_token * * @returns {string} The resolved token * @throws {Error} If no token is found or invalid */ export function resolveToken() { // First try environment variable (for compatibility) const envToken = process.env.KAGI_SESSION_TOKEN; if (envToken && isValidTokenFormat(envToken)) { return envToken.trim(); } // Then try file const fileToken = readTokenFromFile(); if (fileToken && isValidTokenFormat(fileToken)) { return fileToken; } throw new Error( "No valid Kagi session token found. Please either:\n" + "1. Set KAGI_SESSION_TOKEN environment variable, or\n" + "2. Save your token to ~/.kagi_session_token file\n\n" + "Get your token from: https://kagi.com/settings?p=api", ); } /** * Validate token format * @param {string} token - Token to validate * @returns {boolean} True if token format is valid */ export function isValidTokenFormat(token) { return typeof token === "string" && token.trim().length > 0; }