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Onchain reads, decoded .

Guides, comparisons, and integrations for reading smart contract data from Claude, your code, n8n, or a REST client.

EVM Blockchain MCP Server — query contracts from Claude, Cursor, and ChatGPT
Integration Featured

Building with the EVM Blockchain MCP Server: Query Smart Contracts from Claude, Cursor and ChatGPT

How to give Claude, Cursor, and ChatGPT live access to EVM smart contracts using the Model Context Protocol — install, example prompts, and what MCP does (and doesn't) solve.

evmquery team 8 min read

Latest posts

LangGraph plus evmquery: stateful EVM blockchain data in a ReAct agent
Integration May 23, 2026

Live On-Chain Data in LangGraph: Build an EVM Blockchain Tool in 40 Lines

Wire evmquery into a LangGraph ReAct agent to query live EVM contract data — token supplies, oracle prices, DeFi positions — with full state persistence across tool calls. No ABIs, no RPC node.

Spring AI plus evmquery: live EVM blockchain data as a @Tool service
Integration May 22, 2026

Live Onchain Data in Spring AI: Build an EVM Blockchain Tool

Build a Spring AI @Tool that reads live EVM contract data — token balances, oracle prices, Aave positions — without ABIs or RPC nodes.

Semantic Kernel plus evmquery: live EVM blockchain data as a kernel plugin
Integration May 21, 2026

Live Onchain Data in Semantic Kernel: Build an EVM Blockchain Plugin

Build a Semantic Kernel plugin with @kernel_function that reads live EVM contract data — token balances, oracle prices, Aave positions — without ABIs or RPC nodes.

Azure AI Foundry plus evmquery: live EVM blockchain data as a function tool
Integration May 20, 2026

Live Onchain Data in Azure AI Foundry: Build an EVM Blockchain Tool

Wire a live EVM blockchain tool into an Azure AI Foundry agent using FunctionTool — token balances, oracle prices, and Aave positions from a natural language prompt.

DSPy plus evmquery: live EVM blockchain data as a ReAct agent tool
Integration May 19, 2026

Live Onchain Data in DSPy: Build an EVM Blockchain Tool with ReAct

Wrap a live EVM contract reader as a dspy.Tool and wire it into a DSPy ReAct agent — read USDC balances, Chainlink prices, and Aave positions from a natural language prompt.

Agno plus evmquery: live EVM blockchain data as a custom agent tool
Integration May 18, 2026

Live Onchain Data in Agno: Build a Custom EVM Blockchain Tool in 30 Lines

Define a custom Agno tool that reads live EVM smart contract data — USDC balances, ETH prices, Aave positions — without ABIs, RPC nodes, or web3.py boilerplate.

ElizaOS plus evmquery: live EVM contract reads in a custom plugin action
Integration May 16, 2026

Live EVM Contract Reads in ElizaOS: Build a Plugin with evmquery

Add a custom ElizaOS plugin action that reads live USDC balances, oracle prices, and Aave positions from any EVM chain — no ABIs, no RPC node, no web3 boilerplate.

LlamaIndex plus evmquery: live EVM blockchain data as a custom agent tool
Integration May 7, 2026

Live Onchain Data in LlamaIndex: Build a Custom EVM Blockchain Tool

Define a custom LlamaIndex FunctionTool that queries live EVM smart contract data — token balances, ETH prices, DeFi positions — without ABIs, RPC nodes, or web3.py.

smolagents plus evmquery: live EVM blockchain data as a custom agent tool
Integration May 6, 2026

Live Onchain Data in smolagents: Build a Custom EVM Blockchain Tool

Build a custom smolagents Tool subclass that reads live EVM contract data — token balances, oracle prices, Aave positions — without ABIs, RPC nodes, or web3.py.

AG2 (AutoGen) plus evmquery: live EVM blockchain data as an agent tool
Integration May 5, 2026

Live Onchain Data in AG2: Build an EVM Blockchain Tool for AutoGen Agents

Register an evmquery tool in AG2 (AutoGen) to give your agents live EVM contract reads — USDC balances, ETH oracle prices, Aave health factors — without ABIs or RPC nodes.

Pydantic AI plus evmquery: live EVM blockchain data as a typed agent tool
Integration April 29, 2026

Live Onchain Data in Pydantic AI: Build an EVM Blockchain Tool in 30 Lines

Define a typed Pydantic AI tool that reads live EVM contract data — USDC balances, ETH prices, Aave positions — without ABIs, RPC nodes, or web3.py boilerplate.

CrewAI plus evmquery: live EVM blockchain data as a custom crew tool
Integration April 28, 2026

Live Onchain Data in CrewAI: Build a Custom EVM Blockchain Tool

Wire a custom evmquery tool into CrewAI and give your AI crew live access to EVM contract state — USDC balances, ETH prices, and Aave health factors — without ABIs or RPC nodes.

Multi-wallet ERC-20 balance scanning with TypeScript REST API — no Viem, no RPC node
Guide April 26, 2026

Multi-Wallet ERC-20 Balance Scanning from TypeScript: No ABIs, No RPC, No Viem

Scan ERC-20 token balances for many wallets, across Ethereum, Base, and BNB Chain, using TypeScript fetch. No Viem, no ABI files, no RPC provider needed.

Google ADK agent reading live EVM blockchain data via evmquery
Integration April 26, 2026

Live EVM Blockchain Data in Google ADK Agents

Add live smart contract reads to a Google ADK agent in 20 lines of Python. Query ERC-20 balances, Aave health factors, and any EVM state on demand.

Mastra AI agent with live EVM blockchain data via evmquery
Integration April 26, 2026

Live EVM Blockchain Data in Mastra: Build a Typed Tool in TypeScript

Add live EVM smart contract reads to a Mastra AI agent with createTool and the evmquery REST API. Query USDC balances, Chainlink prices, and Aave positions on Ethereum, Base, or BNB.

Blockchain monitoring in Python: EVM contract polling with evmquery
Guide April 25, 2026

Blockchain Monitoring in Python: Poll EVM Contract State Without the Boilerplate

How to write a Python script that polls EVM contract state (Aave health factors, ERC-20 balances, multi-wallet checks) using evmquery's REST API. No ABIs, no ABI decoders, no Multicall3 setup.

LangChain plus evmquery: live EVM blockchain data as a custom agent tool
Integration April 25, 2026

Live Onchain Data in LangChain: Build a Custom EVM Blockchain Tool in 30 Lines

Define a custom LangChain tool that queries live EVM smart contract data — USDC balances, ETH prices, Aave positions — without ABIs, RPC nodes, or web3.py boilerplate.

OpenAI Agents SDK plus evmquery: live EVM blockchain data as a custom function tool
Integration April 25, 2026

Live Onchain Data in the OpenAI Agents SDK: Add an EVM Blockchain Tool

Wire the OpenAI Agents SDK to live EVM smart contract data with one @function_tool. Reads USDC balances, Chainlink prices, and Aave positions on Ethereum, Base, or BNB. No ABIs needed.

Vercel AI SDK plus evmquery: live EVM blockchain data as a custom tool
Integration April 25, 2026

Live Onchain Data in the Vercel AI SDK: Add an EVM Blockchain Tool

Define a custom evmquery tool in the Vercel AI SDK and give your AI app live access to USDC balances, Aave positions, and any EVM contract read on Ethereum, Base, or BNB.

Blockchain indexers guide — The Graph vs direct contract reads
Guide April 24, 2026

Blockchain Indexers in 2026: The Graph, Goldsky, and When to Skip the Index Entirely

When The Graph wins and when a direct contract query is faster. A practical guide to blockchain indexers with TypeScript examples for ERC-20, Uniswap v3, and DeFi.

Moralis vs Alchemy vs QuickNode vs evmquery — choosing an EVM read API
Comparison April 24, 2026

Moralis vs Alchemy vs QuickNode vs evmquery: Picking the Right API for Smart Contract Reads

A fair comparison of the four main ways to read EVM contract data in 2026. What each vendor is best at, where they stop helping, and how to pick without lock-in.

Multicall3 — batch EVM contract reads with Viem, Ethers, and Wagmi
Guide April 24, 2026

Multicall3 in 2026: The Practical Guide to Batching EVM Contract Reads

Multicall3 lets you collapse hundreds of RPC roundtrips into a single call. This guide covers how it works, Viem / Ethers / Wagmi usage, common pitfalls, and when to hand it off.

Query EVM contract data from Python — no ABI files, no RPC nodes
Guide April 24, 2026

Query EVM Contract Data from Python: No ABIs, No RPC Nodes, No web3.py

How to read live EVM smart contract data from Python using the evmquery REST API — no ABI files, no RPC nodes, no web3.py boilerplate. Five working recipes.

Read smart contracts in n8n — EVM data in automation workflows
Integration April 24, 2026

Read Smart Contracts in n8n: Fetching EVM Data in Automation Workflows (No Code)

How to read live smart contract data from an n8n workflow. Install the evmquery community node, then ship three paste-in recipes — price alerts, DAO votes, and NFT floor monitors.