Bitquery
Onchain GraphQL APIs & DEX APIs
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
You could build…
Notes already stored with this category in the catalog.
- A plain-language wallet viewer: balance and recent transactions for one address.
- A public block-explorer search for a single chain.
Blockscout
Multichain block explorer REST API (with Etherscan-compatible JSON-RPC)
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
Chainlink
Build hybrid smart contracts with Chainlink
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
Chainpoint
Chainpoint is a global network for anchoring data to the Bitcoin blockchain
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
ClearTrace
Cross-frontend DEX attribution and execution quality data across Ethereum and L2s
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
Covalent
Multi-blockchain data aggregator platform
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
Etherscan
Ethereum explorer API
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
Get Started with Web3
Bilingual Web3 lessons, glossary search and role-based learning paths
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
Helium
Helium is a global, distributed network of Hotspots that create public, long-range wireless coverage
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
Nownodes
Blockchain-as-a-service solution that provides high-quality connection via API
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
Steem
Blockchain-based blogging and social media website
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
SwiftNodes
Multi-chain blockchain RPC nodes (Ethereum, Solana and 75+ networks)
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
TWZRD Agent Intel
Solana on-chain agent trust scoring via MCP; 4 free tools to score, resolve and verify AI agent wallets
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
The Graph
Indexing protocol for querying networks like Ethereum with GraphQL
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
Walltime
To retrieve Walltime's market info
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
Watchdata
Provide simple and reliable API access to Ethereum blockchain
You could build… A plain-language wallet viewer: balance and recent transactions for one address.
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