Near Wallet Manager

mcp-near-wallet-manager

MCP server for NEAR wallet operations with three production tools:

• create_wallet
• check_balance
• sign_transaction

Designed for agent workflows where wallets must be provisioned, checked, and used for deterministic signing.

What This Delivers (Job Mapping)

1. Wallet creation

• Generates ED25519 keypair or imports existing private key
• Returns public key + implicit account id

2. Balance checking

• Fetches account balance over NEAR JSON-RPC
• Returns total/locked/available balances and key count

3. Transaction signing

• Signs NEAR transaction payloads with transfer/function_call actions
• Returns transaction hash, signature, and base64 signed transaction blob

Install

npm install -g mcp-near-wallet-manager

MCP Config Example (Claude Desktop)

{  "mcpServers": {    "near-wallet-manager": {      "command": "mcp-near-wallet-manager"    }  }}

Tool Inputs

create_wallet

{  "network": "testnet",  "include_private_key": true}

check_balance

{  "account_id": "near",  "network": "mainnet"}

sign_transaction

{  "signer_id": "alice.testnet",  "signer_private_key": "ed25519:...",  "receiver_id": "bob.testnet",  "nonce": "7",  "recent_block_hash": "11111111111111111111111111111111",  "actions": [    {      "type": "transfer",      "deposit_yocto": "1"    }  ]}

Development

npm installnpm run check

Security Notes

• create_wallet may return a private key: treat as sensitive secret.
• Never store private keys in plaintext logs.
• Use dedicated signer accounts and minimal permissions.

Publish Targets

• npm package: mcp-near-wallet-manager
• Agent framework integration notes: deliverables/agent-framework-integration.md
• MCP Registry metadata: server.json

License

MIT