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eltociear

contract-guard-mcp

by eltociear
OverviewSchemaSourceRelated ServersScoreDiscussionsAdmin
Python
Remote

contract-guard-mcp

MCP Registry

MCP server for a pre-interaction risk check on any EVM contract/token — what an agent needs before it approves, swaps, or trusts an address.

Tool: check_contract(address, chain="base") →

  • is-contract vs EOA / self-destructed

  • EIP-7702 delegated-EOA detection

  • upgradeable proxy detection (EIP-1967 + legacy zeppelinos)

  • ERC20 metadata (name / symbol / decimals / totalSupply)

  • risk score + actionable flags

Chains: Base, Ethereum. Pure public JSON-RPC, zero dependencies, no signing.

Also available as a pay-per-call x402 HTTP endpoint: https://eltociear-contract-guard.hf.space (POST /check, $0.005 USDC on Base).

Run

docker run -i --rm ghcr.io/eltociear/contract-guard-mcp:mcp-latest
# or
python3 server.py

MIT licensed.

Related MCP server: token-rugcheck

Tools

  • check_contract(address, chain) — is-contract/EOA, EIP-7702, proxy, ERC20 metadata, risk score

  • check_approval(token, owner, spender, chain) — ERC20 allowance audit; flags unlimited approvals (the #1 drain vector)

Free MCP vs paid x402

This MCP server is free (run it locally / via your client). For server-side, batch, or no-install use, the same engine is a pay-per-call x402 HTTP API — POST https://eltociear-contract-guard.hf.space/check ($0.005 USDC on Base, no signup). Your agent's wallet pays per call.

Professional audit services

Maintained by the same author — paid services on Polar (Stripe checkout):

Full catalog: polar.sh/eltociear

Also live: clean-read ($0.005 / call)

Same operator, same x402 rails: clean-read turns any URL into clean Markdown for AI agents — fetches the page, strips nav/ads/boilerplate (trafilatura), returns the main content with title and word count. POST https://eltociear-skill-audit.hf.space/read — $0.005 USDC on Base, no signup.

Tool Schema Changelog

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Maintenance

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