Kaspa MCP Server

Model Context Protocol server for Kaspa operations using WASM SDK. Enables LLMs to interact with the Kaspa network through standardized MCP tools.

Features

🔗 Connect to different Kaspa networks (mainnet, testnet-10, devnet, simnet)
👛 Wallet Management - Create, import, and manage HD wallets
💰 Balance Checking - Get balance and UTXO information
📤 Send Transactions - Send KAS with optional payloads/messages
📊 Fee Estimation - Calculate transaction fees
🔐 Address Validation - Validate Kaspa addresses
🎲 Mnemonic Generation - Generate secure wallet mnemonics

Setup

npm run install-all
npm run build

Environment Variables

The MCP server supports several environment variables for configuration:

Network Configuration

KASPA_DEFAULT_NETWORK: Default network to use (mainnet, testnet-10, devnet, simnet)
KASPA_MAINNET_RPC_URL: Custom mainnet RPC endpoint
KASPA_TESTNET_RPC_URL: Custom testnet RPC endpoint
KASPA_LOG_LEVEL: Logging level (off, error, warn, info, debug, trace)

Wallet Configuration (Secure)

KASPA_WALLET_MNEMONIC: Preconfigured wallet mnemonic phrase (12-24 words)
KASPA_WALLET_PRIVATE_KEY: Preconfigured wallet private key (hex format)

Security Note: Use environment variables to keep sensitive wallet credentials away from AI agents and conversation logs.

Example .env file

KASPA_DEFAULT_NETWORK=testnet-10
KASPA_TESTNET_RPC_URL=wss://photon-10.kaspa.red/kaspa/testnet-10/wrpc/borsh
KASPA_WALLET_MNEMONIC="your twelve word mnemonic phrase here for testnet use only"
KASPA_LOG_LEVEL=info

Usage

As MCP Server

Add to your MCP client configuration:

Basic Configuration

{
  "mcpServers": {
    "kaspa": {
      "command": "node",
      "args": ["/path/to/kaspa-mcp-server/dist/index.js"]
    }
  }
}

Note: The configuration field name varies by MCP client:

Claude Desktop: Use "mcpServers"
Other MCP clients: May use "servers" or "mcp_servers"
Custom implementations: Check your client's documentation for the correct field name

Configuration with Preconfigured Wallet (Recommended)

For secure operation with environment variables:

{
  "mcpServers": {
    "kaspa": {
      "command": "node",
      "args": ["/path/to/kaspa-mcp-server/dist/index.js"],
      "env": {
        "KASPA_WALLET_MNEMONIC": "abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about",
        "KASPA_DEFAULT_NETWORK": "testnet-10",
        "KASPA_LOG_LEVEL": "info"
      }
    }
  }
}

Security Note: Replace the example mnemonic with your own wallet's mnemonic phrase. This keeps your wallet credentials secure and away from AI conversation logs.

Development

npm run dev

Available Tools

1. 🔌 `kaspa_connect` (STEP 1)

Connect to a Kaspa network. This must be called first before using any wallet or transaction tools.

Parameters:

network (required): Network type (mainnet, testnet-10, devnet, simnet) - Use testnet-10 for testing
rpcUrl (optional): Custom RPC endpoint
sessionId (optional): Session identifier (default: default)

Example:

{
  "name": "kaspa_connect",
  "arguments": {
    "network": "testnet-10",
    "sessionId": "my-session"
  }
}

2. `kaspa_create_wallet`

Create or import a Kaspa wallet.

Parameters:

sessionId (optional): Session identifier
mnemonic (optional): Import from mnemonic phrase
privateKey (optional): Import from private key

Example:

{
  "name": "kaspa_create_wallet",
  "arguments": {
    "sessionId": "my-session"
  }
}

3. `kaspa_get_balance`

Get balance for a Kaspa address.

Parameters:

address (required): Kaspa address to check
sessionId (optional): Session identifier

Example:

{
  "name": "kaspa_get_balance",
  "arguments": {
    "address": "kaspa:qq..."
  }
}

4. `kaspa_send_transaction`

Send a Kaspa transaction.

Parameters:

from (required): Sender address
to (required): Recipient address
amount (required): Amount in KAS (e.g., "1.5")
priorityFee (optional): Priority fee in KAS
payload (optional): Message/data to attach
sessionId (optional): Session identifier

Example:

{
  "name": "kaspa_send_transaction",
  "arguments": {
    "from": "kaspa:qq...",
    "to": "kaspa:qr...",
    "amount": "1.5",
    "payload": "Payment for services"
  }
}

5. `kaspa_estimate_fee`

Estimate transaction fees.

Parameters:

from (required): Sender address
to (required): Recipient address
amount (required): Amount in KAS
sessionId (optional): Session identifier

6. `kaspa_generate_mnemonic`

Generate a new mnemonic phrase.

Parameters:

wordCount (optional): Number of words (12, 15, 18, 21, 24)

7. `kaspa_validate_address`

Validate a Kaspa address.

Parameters:

address (required): Address to validate
network (optional): Network for validation

8. `kaspa_setup_preconfigured_wallet`

Setup wallet using preconfigured credentials from environment variables.

Parameters:

sessionId (optional): Session identifier

Environment Variables Required:

KASPA_WALLET_MNEMONIC: 12-24 word mnemonic phrase
KASPA_WALLET_PRIVATE_KEY: Private key in hex format

Example:

{
  "name": "kaspa_setup_preconfigured_wallet",
  "arguments": {}
}

9. `kaspa_get_wallet_info`

Get wallet information.

Parameters:

sessionId (optional): Session identifier

Session Management

The server supports multiple concurrent sessions using sessionId parameters. Each session maintains its own:

Network connection
Wallet instance
Configuration

Security Notes

🔒 Never log or expose private keys or mnemonics
🌐 Use testnet for development and testing
💾 Wallet credentials are kept in memory only (not persisted)
🧹 Resources are automatically cleaned up on server shutdown
🔐 Preconfigured Wallets: Use environment variables to keep sensitive credentials away from AI agents
⚠️ Environment Security: Ensure your .env files are not committed to version control

Network Endpoints

Default endpoints:

Mainnet: ws://seeder2.kaspad.net:17110 ✅ Public endpoint
Testnet-10: wss://photon-10.kaspa.red/kaspa/testnet-10/wrpc/borsh ✅ Public endpoint
Devnet: ws://127.0.0.1:16610 (requires local node)
Simnet: ws://127.0.0.1:16510 (requires local node)

Address Formats by Network

Mainnet addresses: Start with kaspa: (e.g., kaspa:qz...)
Testnet addresses: Start with kaspatest: (e.g., kaspatest:qr...)
Devnet addresses: Start with kaspadev: (e.g., kaspadev:qp...)
Simnet addresses: Start with kaspasim: (e.g., kaspasim:qq...)

⚠️ Important: Addresses are network-specific. You cannot send from a mainnet wallet to a testnet address or vice versa.

Error Handling

All tools return structured error messages with:

Error code (following MCP standards)
Descriptive error message
Context about the failure

Examples

Basic Workflow

Connect to testnet:

{"name": "kaspa_connect", "arguments": {"network": "testnet-10"}}

Create a wallet:

{"name": "kaspa_create_wallet", "arguments": {}}

Check balance:

{"name": "kaspa_get_balance", "arguments": {"address": "kaspatest:qq..."}}

Send transaction:

{
  "name": "kaspa_send_transaction",
  "arguments": {
    "from": "kaspatest:qq...",
    "to": "kaspatest:qr...",
    "amount": "0.1",
    "payload": "Test transaction from MCP"
  }
}

Secure Workflow (Preconfigured Wallet)

When using the preconfigured wallet configuration (with environment variables in your MCP client config):

Setup preconfigured wallet:

{"name": "kaspa_setup_preconfigured_wallet", "arguments": {}}

Get wallet info:

{"name": "kaspa_get_wallet_info", "arguments": {}}

Send transaction (no private keys exposed to AI):

{
  "name": "kaspa_send_from_wallet",
  "arguments": {
    "to": "kaspatest:qr...",
    "amount": "0.1",
    "feePriority": "normal",
    "payload": "Optional message"
  }
}

Benefits:

🔒 Secure: Private credentials never appear in AI conversation logs
⚡ Fast: No need to manually connect or create wallets each time
🔄 Consistent: Same wallet used across sessions
🛡️ Safe: Environment variables keep sensitive data away from AI agents

Development

# Install all dependencies (workspace + nested packages)
npm run install-all

# Build everything (SDK first, then MCP server)
npm run build

# Development mode
npm run dev

# Run production server
npm start

# Clean build artifacts
npm run clean

License

MIT

Name		Name	Last commit message	Last commit date
Latest commit History 1 Commit
examples		examples
packages/kaspa-wasm-sdk		packages/kaspa-wasm-sdk
src		src
.gitignore		.gitignore
README.md		README.md
package.json		package.json
tsconfig.json		tsconfig.json

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Latest commit

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Kaspa MCP Server

Features

Setup

Environment Variables

Network Configuration

Wallet Configuration (Secure)

Example .env file

Usage

As MCP Server

Basic Configuration

Configuration with Preconfigured Wallet (Recommended)

Development

Available Tools

1. 🔌 kaspa_connect (STEP 1)

2. kaspa_create_wallet

3. kaspa_get_balance

4. kaspa_send_transaction

5. kaspa_estimate_fee

6. kaspa_generate_mnemonic

7. kaspa_validate_address

8. kaspa_setup_preconfigured_wallet

9. kaspa_get_wallet_info

Session Management

Security Notes

Network Endpoints

Address Formats by Network

Error Handling

Examples

Basic Workflow

Secure Workflow (Preconfigured Wallet)

Development

License

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1. 🔌 `kaspa_connect` (STEP 1)

2. `kaspa_create_wallet`

3. `kaspa_get_balance`

4. `kaspa_send_transaction`

5. `kaspa_estimate_fee`

6. `kaspa_generate_mnemonic`

7. `kaspa_validate_address`

8. `kaspa_setup_preconfigured_wallet`

9. `kaspa_get_wallet_info`

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