# @cryptoapis-io/mcp-signer

> Use this tool when you need to securely sign transactions locally across multiple blockchain platforms, including EVM, UTXO, Tron, and XRP, without requiring network calls or API keys. It solves the problem of secure offline transaction signing, providing a seamless interface for inputting transaction data and outputting signed transactions. Ideal for use cases where security and privacy are paramount, such as in cryptocurrency wallets or exchanges.

Canonical page: https://skillsregistry.net/skills/cryptoapis-io-cryptoapis-mcp-signer  
JSON: https://api.skillsregistry.net/v1/skills/cryptoapis-io-cryptoapis-mcp-signer

## Description

MCP server for local transaction signing across EVM, UTXO, Tron, and XRP blockchains, with no network calls or API keys required.

## Trust

- **Trust score (0–1):** 0.70
- **Verification tier:** verified
- **Last scanned:** 2026-08-31

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** finance
- **Updated:** 2026-08-31

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/pfz95g7vym)
- **Repository:** <https://github.com/CryptoAPIs-io/cryptoapis-mcp-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": "cryptoapis-io-cryptoapis-mcp-signer"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/cryptoapis-io-cryptoapis-mcp-signer` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/cryptoapis-io-cryptoapis-mcp-signer/pull`

---
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