Koskamo

chain-signer MCP

A security suite for AI agents that acts as a pre-flight check for blockchain interactions. It includes tools to decode unsigned transactions and flag drains, inspect EIP-712 signatures for permit-phishing, and enforce policy-based action gating. It pairs with any wallet or MCP stack and includes a non-custodial wallet.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

chain-signer MCP logo, by Kevthetech143Community listingLocal stdioSource reviewed; not executedPublished by Kevthetech143
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Popularity 1 GitHub star

What you can do with it

  • Decode unsigned transactions to flag drains before signing
  • Inspect EIP-712 signatures to catch permit-phishing
  • Enforce allow/forbid policies before agent actions

Source and maintenance

Community listingRegistry 0.5.31MIT
mcp-registry: io.github.Kevthetech143/chain-signer@0.5.31Source repository
Last repository push
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

chain-signer 0.5.31

pypiuvx
chain-signer package definition
{
  "version": "0.5.31",
  "transport": "stdio",
  "identifier": "chain-signer",
  "runtimeHint": "uvx",
  "registryType": "pypi",
  "runtimeArguments": [
    {
      "name": "--from",
      "type": "named",
      "value": "chain-signer"
    },
    {
      "type": "positional",
      "value": "chain-signer-mcp",
      "valueHint": "chain-signer-mcp"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "chain-signer-mcp": {
      "command": "uvx",
      "args": [
        "chain-signer==0.5.31"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "chain-signer-mcp": {
      "command": "uvx",
      "args": [
        "chain-signer==0.5.31"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "chain-signer-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "chain-signer==0.5.31"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "chain-signer-mcp": {
      "command": "uvx",
      "args": [
        "chain-signer==0.5.31"
      ]
    }
  }
}

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