How to vibe codeGetXAPI

Prerequisites

• Node.jsfree

  Required for building the TypeScript backend API and the MCP server package.

• GitHubfree

  Version control and CI/CD deployment pipeline.

AI coding tools

• Claude Code

  Best-in-class agentic coding tool for scaffolding multi-file Node.js services and debugging API integrations.

Build guide

1. 01Scaffold Database & Auth Schema

   Initialize a Node.js TypeScript project with Turso SQLite and better-auth to handle user accounts, API keys, and credit balances.

   Create a Next.js 16 and Node.js backend application connected to Turso using Drizzle ORM. Set up tables for users, api_keys, credit_transactions, and monitored_accounts. Integrate better-auth with email/password authentication and a dashboard route to display the user's current API key and credit balance. Ensure all database queries use parameterized statements and include robust error handling for connection timeouts.

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2. 02Implement X Client Proxy & Session Management

   Build an internal proxy wrapper that manages user session tokens (auth_token, ct0) and forwards requests to X's internal GraphQL endpoints with proxy rotation support.

   Build an Express API service module in Node.js that acts as a proxy client for X/Twitter internal endpoints. Implement request formatting for advanced search, user info, and tweet details using X's internal GraphQL query IDs. Add support for rotating proxy URLs via environment variables, handling cookie headers (auth_token, ct0), and normalizing X's nested JSON response payloads into clean, flat JSON structures for downstream API consumers.

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3. 03Credit Ledger & Billing Middleware

   Create an API middleware that deducts credits per endpoint call according to the pricing schedule and integrates Stripe for top-ups.

   Implement an API rate-limiting and credit-deduction middleware in TypeScript. Before executing any proxied X request, check the user's credit balance in Turso. Deduct $0.001 equivalent credits for standard reads and $0.002 for write endpoints. Return a 402 Payment Required status if credits are exhausted. Integrate Stripe webhook endpoints to handle checkout sessions for credit top-ups and monthly Pro subscription renewals, updating the user's balance atomically.

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4. 04Real-Time Webhook Monitoring Engine

   Build a background worker that polls or listens for new tweets from monitored accounts and dispatches HMAC-signed webhook payloads to client endpoints.

   Create a background worker service using Node.js and Redis streams that polls monitored X accounts at regular intervals. When a new tweet is detected, construct a JSON payload containing the tweet details, generate an HMAC-SHA256 signature using a shared secret, and deliver an HTTP POST request to the client's registered webhook URL with headers 'X-GetXAPI-Signature'. Implement an exponential backoff retry queue for failed deliveries up to 21 minutes.

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5. 05Build Model Context Protocol (MCP) Server

   Develop a standalone Node.js MCP server package that exposes your proxy API endpoints as native tools for Claude Desktop and Cursor.

   Build an open-source Model Context Protocol (MCP) server package in TypeScript using the official MCP SDK. Expose tools for searching tweets, fetching user timelines, sending DMs, and posting tweets by communicating securely with your backend API via Bearer token authentication. Include clear configuration instructions for claude_desktop_config.json so developers can install and run it instantly via npx.

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6. 06Dashboard UI & Documentation Polish

   Build a developer dashboard for generating API keys, viewing usage logs, testing endpoints, and reading interactive API documentation.

   Design a responsive developer dashboard using Next.js, Tailwind CSS, and shadcn/ui. Include an overview page showing real-time API call metrics, a token generation interface with copy-to-clipboard functionality, an interactive endpoint tester playground for trying out GET and POST requests, and a documentation page listing all supported endpoints and pricing tiers.

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Cost vs paying for GetXAPI