# Uniblock > Uniblock is a single, unified API for all of web3. One API key routes requests > across 300+ blockchains and 55+ underlying providers (Alchemy, Infura, QuickNode, > Helius, Moralis, Ankr, and more) with smart auto-routing, automatic failover, and > normalized responses. It replaces the need to integrate and maintain many separate > RPC and data-provider contracts. Key facts: - 300+ blockchains, 55+ providers, 3,000+ APIs, 99.9% uptime - Three API surfaces: Unified APIs (high-level endpoints), Unified JSON-RPC (one endpoint across chains), and Direct Provider APIs (provider-specific methods) - Data coverage: tokens, NFTs, market/price data, transactions, chain scanning, and webhooks - Routing engine: auto-routing by cost/latency/reliability, backup providers, waterfall routing, data consensus, data normalization, and polyfill - Authentication: pass your key in the `x-api-key` header - Get an API key in the dashboard and make your first call in minutes ## Product - [Home](https://uniblock.dev/): Product overview and positioning - [Pricing](https://uniblock.dev/pricing): Plans and usage-based pricing - [Supported chains](https://uniblock.dev/chains): Full list of 300+ supported blockchains - [Integrations](https://uniblock.dev/integrations): Supported providers and data sources - [Dedicated Nodes (Enterprise)](https://uniblock.dev/nodes): Dedicated node infrastructure for enterprise customers who need private, high-throughput nodes - [Dashboard](https://dashboard.uniblock.dev): Create a project and get an API key ## Documentation - [Welcome to Uniblock](https://docs.uniblock.dev/guides/welcome/welcome-to-uniblock.md): Introduction and how Uniblock works - [Uniblock overview](https://docs.uniblock.dev/guides/uniblock/overview-uniblock.md): How the platform and routing layer fit together - [Quickstart](https://docs.uniblock.dev/guides/getting-started/uniblock-quickstart-guide.md): Get an API key and make your first request - [Unified API Quickstart](https://docs.uniblock.dev/guides/uniblock/unified-api-quickstart.md): Using the high-level Unified API - [Authentication](https://docs.uniblock.dev/guides/uniblock/authentication.md): Authenticate with the x-api-key header - [Auto-routing](https://docs.uniblock.dev/guides/uniblock/autorouting/uniblock-auto-routing.md): How requests are routed across providers - [Rate limits](https://docs.uniblock.dev/guides/uniblock/rate-limits.md): Request limits and tiers - [Error codes](https://docs.uniblock.dev/guides/uniblock/error-codes.md): Error reference - [Direct API overview](https://docs.uniblock.dev/reference/direct-api/overview-direct-api.md): Calling provider-specific methods through one key - [JSON-RPC requests](https://docs.uniblock.dev/api-reference/json-rpc/send-json-rpc-requests.md): Unified JSON-RPC across chains - [Full documentation index](https://docs.uniblock.dev/llms.txt): Complete machine-readable index of every guide and API reference endpoint (tokens, NFTs, market data, scan, transactions, webhooks, and per-chain JSON-RPC methods) ## Use cases - [Wallets and Portfolio Trackers](https://docs.uniblock.dev/guides/use-cases/wallets-and-portfolio-trackers.md): Balances, transfers, and portfolio data - [DeFi Dashboards and Analytics](https://docs.uniblock.dev/guides/use-cases/defi-dashboards-and-analytics.md): On-chain DeFi data and analytics - [NFT Marketplaces and Discovery](https://docs.uniblock.dev/guides/use-cases/nft-marketplaces-and-discovery.md): NFT metadata, ownership, and sales - [Token Launches and Monitoring](https://docs.uniblock.dev/guides/use-cases/token-launches-and-monitoring.md): Track tokens and on-chain activity - [Gaming and In-App Assets](https://docs.uniblock.dev/guides/use-cases/gaming-and-in-app-assets.md): Assets and ownership for games - [DAO Dashboards and Governance](https://docs.uniblock.dev/guides/use-cases/dao-dashboards-and-governance.md): Governance and treasury data - [Airdrops and Growth Campaigns](https://docs.uniblock.dev/guides/use-cases/airdrops-and-growth-campaigns.md): Eligibility and distribution data ## Resources - [Glossary](https://uniblock.dev/glossary): Web3 and blockchain terminology - [Blog](https://uniblock.dev/blog): Engineering and product writing ## Company - [About](https://uniblock.dev/about): Company and mission - [Support](https://uniblock.dev/support): Get help and contact the team ## Optional - [Why RPCs fail in production](https://uniblock.dev/blog/why-rpcs-fail-in-production): The reliability case for routing and failover - [The hidden cost of free RPCs](https://uniblock.dev/blog/the-hidden-cost-of-free-rpcs): Cost analysis of public RPCs - [Node vs RPC SaaS vs high-level APIs](https://uniblock.dev/blog/running-a-blockchain-node-vs-rpc-saas-vs-high-level-apis): Infrastructure trade-offs - [Privacy Policy](https://uniblock.dev/legal/privacy-policy) - [Terms of Service](https://uniblock.dev/legal/terms-of-service)