Blockchain APIs
Access blockchain networks, smart contracts, and cryptocurrency platforms.| API | Description | Auth | HTTPS | CORS |
|---|---|---|---|---|
| Bitquery | Onchain GraphQL APIs & DEX APIs | apiKey | Yes | Yes |
| Chainlink | Build hybrid smart contracts with Chainlink | No | Yes | Unknown |
| Chainpoint | Chainpoint is a global network for anchoring data to the Bitcoin blockchain | No | Yes | Unknown |
| Covalent | Multi-blockchain data aggregator platform | apiKey | Yes | Unknown |
| Etherscan | Ethereum explorer API | apiKey | Yes | Yes |
| Helium | Helium is a global, distributed network of Hotspots that create public, long-range wireless coverage | No | Yes | Unknown |
| Nownodes | Blockchain-as-a-service solution that provides high-quality connection via API | apiKey | Yes | Unknown |
| Steem | Blockchain-based blogging and social media website | No | No | No |
| The Graph | Indexing protocol for querying networks like Ethereum with GraphQL | apiKey | Yes | Unknown |
| Walltime | To retrieve Walltime’s market info | No | Yes | Unknown |
| Watchdata | Provide simple and reliable API access to Ethereum blockchain | apiKey | Yes | Unknown |