# chain-signer

> Use this tool when you need to securely manage and sign Ethereum transactions while detecting potential drain patterns. The chain-signer decodes unsigned EVM transactions, flags suspicious activities such as unlimited approvals and hidden multicall approvals, and signs transactions after preflight checks. It provides a non-custodial agent wallet solution for secure transaction management, ideal for use cases requiring enhanced security and transaction scrutiny.

Canonical page: https://skillsregistry.net/skills/kevthetech143-chain-signer  
JSON: https://api.skillsregistry.net/v1/skills/kevthetech143-chain-signer

## Description

Non-custodial agent wallet with a transaction preflight that decodes an unsigned EVM tx and flags drain patterns (unlimited/large approval, approve-all, token & NFT transferFrom, proxy upgrade, on-chain permit, approvals hidden in multicall) before signing.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-09-01

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-01

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/gvbor57ct4)
- **Repository:** <https://github.com/Kevthetech143/chain-signer>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "kevthetech143-chain-signer"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/kevthetech143-chain-signer` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/kevthetech143-chain-signer/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt