Crypto APIs

# Crypto APIs > The blockchain infrastructure suite for Web 3. Crypto APIs Inc. provides a blockchain infrastructure suite offering unified APIs for blockchain data, transaction processing, wallet management, blockchain events, and crypto market data. Newer additions include AML address screening (Verify Address) and a full AI-agent surface: 60 Model Context Protocol tools, a command-line interface, agent skills, and an n8n MCP client. Coverage spans 20+ blockchains. This file follows the [llms.txt convention](https://llmstxt.org). It curates the canonical entry points for an LLM-driven agent. The technical reference lives on [developers.cryptoapis.io](https://developers.cryptoapis.io); for machine-readable URL inventories see [/cryptoapis/sitemap.xml](https://cryptoapis.io/cryptoapis/sitemap.xml). ## About - **Legal entity:** Crypto APIs INC (Delaware, United States) - **Founded:** 2018 - **Headquarters:** 24a Trolley Square, Wilmington, DE 19806, United States - **Contact:** [hq@cryptoapis.io](mailto:hq@cryptoapis.io) - **Identifier:** US EIN 30-1313692 ## Getting started - [Free Crypto API](https://cryptoapis.io/free-crypto-api): Free tier to start building — blockchain data, market prices, HD wallets, and webhooks via one REST API across Bitcoin, Ethereum, and 20+ chains. No credit card required; upgrade as usage grows. See [Pricing](https://cryptoapis.io/pricing) for tiers. ## Products API products in the suite. Each page describes what the product does, what bl […gekürzt]