Compare Blockchain APIs
Deep dive into the technical specifications of 11 Blockchain APIs. Use this side-by-side comparison to evaluate which service best fits your architectural requirements.
| API Identity | Score | Authentication | HTTPS | CORS | Speed | Difficulty | Brief |
|---|---|---|---|---|---|---|---|
| Bitquery | 77 B Est. | API Key | Yes | - | Intermediate | Bitquery provides GraphQL APIs for querying on-chain data across 40+ blockchains including Ethereum,... | |
| Chainlink | 87 A Est. | No Auth | ? | 134ms | Beginner | Chainlink is a decentralized oracle network that connects smart contracts to real-world data like pr... | |
| Chainpoint | 82 A Est. | No Auth | ? | 222ms | Beginner | Chainpoint anchors any data hash to the Bitcoin blockchain, creating a tamper-proof proof of existen... | |
| Covalent | 0 F Est. | API Key | ? | - | Intermediate | Covalent provides programmatic access to multi-blockchain data aggregator platform via REST API. Thi... | |
| Etherscan | 87 A Est. | API Key | Yes | - | Intermediate | Etherscan's API gives programmatic access to Ethereum blockchain data — account balances, transactio... | |
| Helium | 82 A Est. | No Auth | ? | 331ms | Beginner | The Helium API provides access to legacy blockchain data for the Helium IoT network — hotspot locati... | |
| Nownodes | 72 B Est. | API Key | ? | - | Intermediate | NOWNodes provides hosted blockchain node access for 50+ cryptocurrencies via a simple API key — no n... | |
| Steem | 80 A Measured | No Auth | No | 768ms | Beginner | Steem is a blockchain-based social media platform with a public API for reading posts, comments, vot... | |
| The Graph | 72 B Est. | API Key | ? | - | Intermediate | The Graph is a decentralized indexing protocol that lets you query Ethereum and other blockchain net... | |
| Walltime | 0 F Est. | No Auth | ? | 3680ms | Beginner | Walltime provides programmatic access to to retrieve walltime's market info via REST API. This Block... | |
| Watchdata | 72 B Est. | API Key | ? | - | Intermediate | Watchdata provides a simple JSON-RPC and REST gateway to the Ethereum blockchain, giving you account... |