TwitterAPIs is a pay-per-call Twitter API and X API for developers who need Twitter data without an X developer account. Every standard call costs $0.0008 and returns about 20 tweets, roughly $0.04 per 1,000 tweets, against $5 to $10 per 1,000 on the official X API. No subscription, no monthly minimum, and credits never expire. What you get: 109 REST endpoints (65 reads, 44 writes) covering tweet search by keyword, hashtag, mention and date range, user profiles, followers and following, timelines, replies, quotes, full threads, lists, communities and trends, plus posting, likes, retweets and DMs. Every response is clean JSON behind one Bearer API key. Use it as a managed tweet scraper API, a Twitter API alternative for research and social listening, or a live data source for AI agents: TwitterAPIs ships a native MCP server (npx -y @twitterapis/mcp) for Claude Desktop and Cursor. Account monitoring sends a signed webhook, or a Slack or Discord message, the moment a watched X account posts, and one monitored account is free. Free Twitter API trial: new accounts get $0.50 in free credits, about 625 calls, with no credit card. Sign up, copy your Twitter API key from the dashboard, and call it from curl, Python or Node.js in a few minutes.