What are the best Blockchain APIs? (2026)

Ant Group's enterprise blockchain — smart contracts, cross-chain, digital assets, supply chain finance

Hyperledger FireFly FabConnect is a connector that provides a RESTful API to submit requests to Fabric networks and an event stream to listen for Fabric events over websocket or webhook based chann...

Baidu's blockchain platform — smart contracts, digital copyright, traceability, open network

Onchain GraphQL APIs & DEX APIs

Binance Smart Chain explorer API

Build hybrid smart contracts with Chainlink

Chainpoint is a global network for anchoring data to the Bitcoin blockchain

Multi-blockchain data aggregator platform

Ethereum explorer API

Blockchain RPC Node provider that supports over 50 multiple blockchains

Helium is a global, distributed network of Hotspots that create public, long-range wireless coverage

Layer4 is a blockchain integration platform that supports no-code and API use

Blockchain-as-a-service solution that provides high-quality connection via API

Blockchain-based blogging and social media website

Tencent's enterprise blockchain platform — supply chain finance, digital invoices, asset digitization

Indexing protocol for querying networks like Ethereum with GraphQL

To retrieve Walltime's market info

Provide simple and reliable API access to Ethereum blockchain