GoldRush Blockchain Data APIs & Indexing Infrastructure

Multichain Blockchain Data APIs

Covalent's GoldRush platform delivers comprehensive blockchain data indexing infrastructure across 100+ chains through two complementary API products: the GoldRush Foundational API and the GoldRush Streaming API.

The GoldRush Foundational API is a set of multichain REST APIs providing structured, normalized responses for token balances, NFT assets, transaction histories, decoded log events, internal transactions, state changes, and input data — all accessible via a single API key. It is organized into six specialized sub-APIs: Wallet API, Activity Feed API, NFT API, Bitcoin API, Security API, and Block Explorer API. All endpoints index chain data from the genesis block through the latest block, providing complete historical coverage without requiring developers to run their own nodes.

The GoldRush Streaming API extends this with real-time blockchain event subscriptions via GraphQL over WebSockets, delivering sub-second latency updates on token balances, new DEX pairs, wallet activity, and OHLCV price data across major chains including Base, Ethereum, BSC, Polygon, and Solana.

Underlying Decentralized Infrastructure

Both APIs are powered by the Ethereum Wayback Machine (EWM) Network — a decentralized node operator network that produces, processes, and serves cryptographically verifiable blockchain data, ensuring trustless and complete historical data availability.

Key Capabilities

• 100+ blockchains indexed with multi-chain support
• Complete historical coverage from genesis block
• 99.99% uptime SLA with decentralized architecture
• SOC 2 compliant, AES-256 encryption at rest, TLS 1.2 in transit
• GraphQL and REST interfaces
• Trusted by EY, Fidelity, Consensys, Jump Trading, OpenSea, Chainalysis, and 70,000+ developers

Use Cases

Wallet and portfolio trackers, crypto accounting and tax tools, DeFi dashboards, NFT galleries, compliance platforms, trading bots, and AI agent data feeds.