Sorsa API is a REST API service that provides programmatic access to public X (formerly Twitter) data. It functions as a third-party alternative to the official X API, delivering real-time and historical data on users, tweets, search results, communities, and engagement metrics through a set of 38 HTTP endpoints. The service is designed for developers, data engineers, researchers, and growth teams who need structured X data for building applications, running analytics pipelines, training AI models, or monitoring social media activity at scale. Key capabilities and characteristics: - Data coverage: User profiles, tweet content and metadata, keyword and hashtag search, follower and following lists, community feeds, engagement verification (follows, retweets, quotes, comments), and crypto/Web3 influence scoring - Performance and reliability: 20 requests per second rate limit across all plans, 300-500ms average response latency, 99.9% uptime since launch in 2022, with over 5 billion requests processed - Pricing model: Flat per-request pricing with no credit multipliers or per-endpoint tiers. Plans range from $49/month (10,000 requests) to $899/month (500,000 requests), with custom enterprise plans available - Integration: Authentication via a single API key in the request header, JSON responses on all endpoints, OpenAPI 3 specification for SDK generation and LLM function calling, cursor-based pagination for list endpoints - Access: Instant account activation with no developer approval process required, compared to the multi-day review process of the official X API Sorsa is a read-only service and does not support write operations such as posting tweets, following accounts, or sending messages. It is used by 2,000+ developers and 100+ companies for use cases including social listening, competitor analysis, financial sentiment tracking, campaign verification, and AI training data collection.