# Signer

> MCP server for local transaction signing on EVM, UTXO, Tron, and XRP — no API calls needed

## Facts
- Page: https://tashan.sh/capability/pkg-cryptoapis-io-mcp-signer
- tashan id: pkg:@cryptoapis-io/mcp-signer
- Source: https://github.com/CryptoAPIs-io/cryptoapis-mcp-signer
- npm: https://www.npmjs.com/package/@cryptoapis-io/mcp-signer
- Type: npm
- Category: database
- tashan score: 51.0 / 100
- Adoption: 33.0
- Upkeep: 58.0
- Freshness: 82.0
- Evidence coverage: 100% of the inputs this score can use
- Health: active
- Instruction depth: solid
- npm downloads: 234/week
- License: MIT
- Official: no

## Install

```sh
claude mcp add signer -- npx -y @cryptoapis-io/mcp-signer
```

## Security audit
- Known advisories: 0
- Install-time script: none declared
- Build provenance: not attested

Permissions are read from DECLARED dependencies only. Nothing is executed, so an empty result means "nothing declared", never "nothing possible".

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Measured 2026-09-13 by tashan (https://tashan.sh) from public evidence. Scorer s5.