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szhygulin/recon-crypto-mcp

v0.2.0 Feature

This release adds 2 notable features for engineering teams evaluating rollout.

Published 1mo MCP Developer Tools
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

aave ai-agent arbitrum claude claude-code compound
+13 more
crypto cursor defi ethereum ledger lifi mcp mcp-server model-context-protocol polygon solana uniswap walletconnect

Summary

AI summary

Added simulate_transaction tool and automatic pre‑sign simulation to prevent reverting transactions.

Full changelog

Features

  • simulate_transaction MCP tool — generic eth_call with viem-decoded revert reasons. The agent can now verify a contract call before asking for a Ledger signature (e.g. "will sending 0.5 ETH to WETH9's fallback actually wrap it?").
  • Automatic pre-sign simulation — every prepared tx now runs eth_call before the preview is returned, and send_transaction re-simulates right before forwarding to Ledger. If the tx would revert, it's refused — no gas burned, no misleading device prompt for a guaranteed failure.

Fixes

  • Compound V3 dust rendering — when the base token's decimals() multicall entry transiently failed, the reader fell back to 18, rendering a 184 K USDC supply (6 decimals) as ~0.0000002 USDC in get_portfolio_summary. Skip the market rather than emit wrong-scale amounts.

Install

npm install -g [email protected]

Full changelog: https://github.com/szhygulin/recon-crypto-mcp/compare/v0.1.1...v0.2.0

View diff on GitHub

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About szhygulin/recon-crypto-mcp

Self-custodial crypto portfolio for AI agents. Reads EVM wallet balances, ENS, token prices, and DeFi positions across Ethereum/Arbitrum/Polygon/Base (Aave V3, Compound V3, Morpho Blue, Uniswap V3 LP, Lido, EigenLayer), surfaces health-factor alerts and protocol risk scores, then prepares unsigned transactions (supply, borrow, repay, withdraw, stake, send, LiFi swap/bridge) signed on Ledger via WalletConnect — private keys never leave the hardware wallet.

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Related context

Beta — feedback welcome: [email protected]