@orquestradev/n8n-nodes-solana-signer

Sign Solana transactions and messages inside your n8n workflows — using any of 13 pluggable signing backends powered by @solana/keychain.

Features

Operations

• Get Wallet Address — return the public key for a configured signer
• Sign Message — sign arbitrary UTF-8 messages
• Sign Transaction — sign a base64-encoded Solana transaction (wire format)
• Send Transaction — sign + broadcast to any Solana RPC endpoint, return tx signature

Backends | Backend | Use Case | |---------|----------| | Memory (Local Keypair) | Dev/automation, base58 or JSON-array private key | | HashiCorp Vault | Enterprise secrets management | | AWS KMS | AWS-managed key signing | | GCP KMS | Google Cloud-managed key signing | | Privy | Privy embedded wallet | | Turnkey | Turnkey MPC wallet | | Fireblocks | Fireblocks institutional custody | | Coinbase CDP | Coinbase Developer Platform wallet | | Dfns | Dfns MPC wallet | | Crossmint | Crossmint wallet | | Openfort | Openfort backend wallet | | Para MPC | Para MPC wallet | | Utila | Utila wallet |

Installation

Method 1 — n8n UI (Recommended)

1. Open your n8n instance
2. Go to Settings → Community Nodes
3. Click Install
4. Enter: @orquestradev/n8n-nodes-solana-signer
5. Click Install and restart n8n when prompted

Requires n8n v0.187.0 or later with community nodes enabled.

Method 2 — Docker Compose (Self-hosted)

This repo ships a ready-to-use docker-compose.yml that bundles n8n with the node pre-installed.

Clone and start:

git clone https://github.com/berkayoztunc/n8n-nodes-solana-signer
cd n8n-nodes-solana-signer

npm install
npm run build

docker compose up -d

n8n is available at http://localhost:5678.

Stop:

docker compose down

Rebuild after updates:

npm run build
docker compose build
docker compose up -d

Data persists in a Docker volume (n8n_data). To wipe it:

docker compose down -v

Method 3 — npm (Self-hosted)

cd ~/.n8n/custom
npm install @orquestradev/n8n-nodes-solana-signer
# Restart n8n

Method 4 — Local Development / Symlink

git clone https://github.com/berkayoztunc/n8n-nodes-solana-signer
cd n8n-nodes-solana-signer
npm install
npm run build

ln -s $(pwd) ~/.n8n/custom/n8n-nodes-solana-signer
# Restart n8n

Configuration

Each backend uses its own credential type. Create credentials in n8n under Credentials → New.

Memory (Local Keypair)

| Field | Description | |-------|-------------| | Private Key | Base58 private key or Solana CLI JSON array [1,2,...,64] |

HashiCorp Vault

| Field | Description | |-------|-------------| | Vault URL | e.g. http://127.0.0.1:8200 | | Token | Vault auth token | | Key Name | Transit key name | | Mount Path | Transit engine mount (default: transit) |

AWS KMS

| Field | Description | |-------|-------------| | Access Key ID | AWS access key | | Secret Access Key | AWS secret key | | Region | e.g. us-east-1 | | Key ID | KMS key ID or ARN |

GCP KMS

| Field | Description | |-------|-------------| | Project ID | GCP project ID | | Location ID | e.g. global or us-east1 | | Key Ring ID | KMS key ring name | | Key ID | KMS key name | | Service Account Credentials JSON | Service account JSON string |

Privy

| Field | Description | |-------|-------------| | App ID | Privy application ID | | App Secret | Privy application secret | | Wallet ID | Target wallet ID |

Turnkey

| Field | Description | |-------|-------------| | API Public Key | Turnkey API public key | | API Private Key | Turnkey API private key | | Organization ID | Turnkey organization ID | | Wallet Account Address | Solana wallet account address |

Fireblocks

| Field | Description | |-------|-------------| | API Key | Fireblocks API key | | Secret Key (PEM) | RSA private key in PEM format | | Vault Account ID | Vault account ID (default: 0) | | Asset ID | e.g. SOL or SOL_TEST |

Coinbase CDP

| Field | Description | |-------|-------------| | API Key Name | CDP API key name | | API Private Key | CDP API private key | | Wallet ID | CDP wallet ID | | Wallet Address | Solana wallet address |

Dfns

| Field | Description | |-------|-------------| | App ID | Dfns application ID | | Auth Token | Dfns auth token | | Wallet ID | Dfns wallet ID | | Service Account Credential | Service account key/JSON |

Crossmint

| Field | Description | |-------|-------------| | API Key | Crossmint API key | | Wallet Locator | e.g. email:[email protected] |

Openfort

| Field | Description | |-------|-------------| | Secret Key | Openfort secret key | | Account Address | Solana pubkey |

Para MPC

| Field | Description | |-------|-------------| | API Key | Para API key | | Wallet ID | Para wallet ID |

Utila

| Field | Description | |-------|-------------| | API Key | Utila API key | | Vault ID | Utila vault ID | | Wallet ID | Utila wallet ID |

Operations Reference

Get Wallet Address

Returns the public key (base58) for the configured signer.

Output:

{ "address": "7xKX..." }

Sign Message

Signs a UTF-8 string message.

Input:

• message — string to sign

Output:

{
  "message": "hello world",
  "signatures": {
    "7xKX...": "<base64-signature>"
  }
}

Sign Transaction

Signs a pre-built Solana transaction without broadcasting.

Input:

• transaction — base64-encoded wire-format transaction

Output:

{
  "transaction": "<base64-signed-tx>",
  "signatures": {
    "7xKX...": "<base64-signature>"
  }
}

Send Transaction

Signs and broadcasts a transaction to a Solana RPC endpoint.

Input:

• transaction — base64-encoded wire-format transaction
• rpcUrl — RPC endpoint (default: https://api.mainnet-beta.solana.com)

Output:

{
  "signature": "<base58-tx-signature>",
  "signatures": { "7xKX...": "<base64-sig>" }
}

Security Notes

• Private keys and API secrets are stored in n8n's encrypted credential store — never in workflow JSON.
• For production wallets, prefer a remote signing backend (AWS KMS, GCP KMS, Turnkey, Privy, etc.) over the Memory backend.
• The Memory backend holds the private key as a non-extractable CryptoKey in memory — it cannot be read back after creation.
• Never commit private keys or credential values to source control.

Requirements

• n8n >=0.187.0
• Node.js >=18

License

MIT © berkayoztunc