Blog
Onchain reads, decoded.
Guides, comparisons, integrations, reference docs, and trust reports for reading smart contract data from Claude, your code, n8n, or a REST client.
Codex.io vs evmquery: Enriched Market Data vs Contract-Logic Reads for AI Agents
Codex.io indexes token prices, trades, and wallets across 80+ chains for AI agents. evmquery reads contract logic live. A fair comparison, and a naming warning.
How to Decode Ethereum Calldata Without an ABI File
You have a contract address and a raw 0x calldata blob, no ABI file. Here's how to decode the function call and its arguments anyway, with a worked example.
Which Major Contracts Are Upgradeable Proxies: We Resolved 44 of Them
10 of the 44 most-used contracts on Ethereum and Base can swap their code without the address changing. The split is not random: upgradeability clusters where custody clusters.
Querying Polygon Contracts with evmquery: Chain ID, Proxy Resolution, and a Live Example
evmquery now reads Polygon (evm_polygon, chain ID 137) contracts through REST, MCP, and n8n — same ABI resolution and proxy unwinding as Ethereum, Base, and BNB Chain.
Bitquery vs evmquery: GraphQL Analytics vs Contract-Logic Reads for AI Agents
Bitquery indexes DEX trades, holders, and money flow across chains. evmquery reads contract logic live. A fair look at which one your AI agent actually needs.
Blockscout Alternative for AI Agent Contract Reads: Where evmquery Fits (and Where Blockscout Still Wins)
Blockscout's MCP server gives agents explorer data across a huge chain list. Here's where that stops short for contract-logic reads, and where evmquery removes the ABI and proxy work instead.
Aave V3 Health Factor Explained: getUserAccountData, Decimals, and the Infinite Health Case
Decode Aave V3's getUserAccountData correctly: six struct fields, three decimal scales, and why a zero-debt wallet returns a healthFactor near 1.16e59.
evmquery in Any AI Agent Framework: The Complete Integration Matrix
One-page reference for wiring evmquery's onchain reads into 21 AI agent frameworks, from LangChain to Semantic Kernel. Install command and tool pattern per framework.
Alchemy Alternative for Contract Reads: Where evmquery Fits (and Where Alchemy Still Wins)
Searching for an Alchemy alternative? A fair, detailed look at what Alchemy does best, where custom contract reads still cost you time, and where evmquery removes that work instead.