AWS/GCP KMS-based Ethereum signer for viem with enterprise-grade security. Sign transactions and messages using keys stored in AWS or GCP KMS without
AWS/GCP KMS-based Ethereum signer for viem with enterprise-grade security. Sign transactions and messages using keys stored in AWS or GCP KMS without exposing
A TypeScript library that integrates AWS/GCP KMS (Key Management Service) with viem to create secure Ethereum signers. This allows you to sign Ethereum transactions and messages using keys stored in AWS or GCP KMS, providing enterprise-grade security for your Ethereum operations.
kms:GetPublicKey - kms:Sign 3. **NoteCompare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.
{
"mcpServers": {
"evm-signer": {
"command": "npx",
"args": ["-y", "evm-kms-signer"],
"env": {
"KMS_KEY_ID": "your-value",
"AWS_ACCESS_KEY_ID": "your-value",
"AWS_SECRET_ACCESS_KEY": "your-value",
"KEYRING_ID": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
kms:GetPublicKey - kms:Sign 3. **Note| Variable | Description | Required |
|---|---|---|
| KMS_KEY_ID | Credential the server authenticates with. | Yes |
| AWS_ACCESS_KEY_ID | Credential the server authenticates with. | Yes |
| AWS_SECRET_ACCESS_KEY | Credential the server authenticates with. | Yes |
| KEYRING_ID | Credential the server authenticates with. | Yes |
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