Blockchain APIs

8 free APIs with no signup and no API key. Data from public-apis (MIT).

Build hybrid smart contracts with Chainlink

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

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Cross-frontend DEX attribution and execution quality data across Ethereum and L2s

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Bilingual Web3 lessons, glossary search and role-based learning paths

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

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Blockchain-based blogging and social media website

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Solana on-chain agent trust scoring via MCP; 4 free tools to score, resolve and verify AI agent wallets

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To retrieve Walltime's market info

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← All categories · HTTPS/CORS badges are as listed upstream and may drift. The linked docs are authoritative.