Which integrations are available for this server?

Allows deploying, initializing, and upgrading NEAR smart contracts, checking deployment status, and estimating deployment costs.

How do I use NEAR Contract Deployer MCP Server?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@NEAR Contract Deployer MCP Server Deploy my contract to testnet" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

NEAR Contract Deployer MCP Server

by jim-agent

Overview Schema Related Servers Score Discussions

JavaScript

Remote

NEAR Contract Deployer MCP Server

An MCP (Model Context Protocol) server that enables AI assistants like Claude to deploy, initialize, and upgrade NEAR smart contracts.

Features

deploy_contract: Deploy WASM smart contracts to NEAR accounts
initialize_contract: Call initialization methods after deployment
upgrade_contract: Upgrade existing contracts with new code
get_deployment_status: Check if an account has a contract deployed
estimate_deployment_cost: Calculate storage costs before deploying

Related MCP server: Solana Web3.js MCP Server

Installation

npm install
npm run build

Configuration

Credentials

The server looks for NEAR credentials in these locations (in order):

~/.near-credentials/{network}/{account_id}.json
~/.near/credentials/{network}/{account_id}.json
./.near-credentials/{network}/{account_id}.json

You can also provide credentials directly via the private_key parameter.

Generate Credentials

# For testnet
near login --networkId testnet

# For mainnet  
near login --networkId mainnet

Usage with Claude Desktop

Add to your Claude Desktop configuration (~/Library/Application Support/Claude/claude_desktop_config.json):

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

Example Conversations

Deploying a New Contract

User: Deploy my contract to testnet

Claude: I'll help you deploy your contract. First, let me estimate the costs.

Tool: estimate_deployment_cost
Args: {"wasm_path": "./target/wasm32-unknown-unknown/release/my_contract.wasm"}

💰 DEPLOYMENT COST ESTIMATE

📊 Cost Breakdown:
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  WASM Size:       156.32 KB (160,072 bytes)
  Storage Cost:    1.600720 NEAR
  Estimated Gas:   11 TGas
  Total Estimate:  ~1.65 NEAR

💡 Recommendation:
   ✅ Contract size is reasonable. Deployment should proceed smoothly.

Now let me deploy it:

Tool: deploy_contract
Args: {
  "account_id": "mycontract.testnet",
  "wasm_path": "./target/wasm32-unknown-unknown/release/my_contract.wasm",
  "network": "testnet"
}

✅ CONTRACT DEPLOYED SUCCESSFULLY

📋 Deployment Details:
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  Contract ID:     mycontract.testnet
  Network:         testnet
  WASM Size:       156.32 KB
  Storage Cost:    1.600720 NEAR
  Transaction:     7abc123...

🔗 Explorer: https://explorer.testnet.near.org/transactions/7abc123...

📝 Next Steps:
  1. Initialize the contract using initialize_contract()
  2. Verify deployment with get_deployment_status()

Initializing a Contract

User: Initialize the contract with owner set to my account

Claude: I'll initialize your contract with the specified owner:

Tool: initialize_contract
Args: {
  "contract_id": "mycontract.testnet",
  "method_name": "new",
  "args": {"owner_id": "yourname.testnet"},
  "network": "testnet"
}

✅ CONTRACT INITIALIZED SUCCESSFULLY

📋 Initialization Details:
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  Contract ID:     mycontract.testnet
  Method:          new
  Arguments:       {"owner_id": "yourname.testnet"}
  Transaction:     8def456...

🔗 Explorer: https://explorer.testnet.near.org/transactions/8def456...

✨ The contract is now ready to use!

Checking Deployment Status

User: Is there a contract on wrap.near?

Claude: Let me check the deployment status:

Tool: get_deployment_status
Args: {"account_id": "wrap.near", "network": "mainnet"}

✅ CONTRACT IS DEPLOYED

📋 Deployment Status:
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  Contract ID:     wrap.near
  Network:         mainnet
  Code Hash:       4Fh7SHqU...
  Storage Used:    3,456,789 bytes
  Storage Cost:    34.567890 NEAR
  Balance:         1,234.567890 NEAR

🔗 Explorer: https://explorer.near.org/accounts/wrap.near

✨ Contract is ready to interact with!

Upgrading a Contract

User: Upgrade my contract with the new version

Claude: I'll upgrade your contract with the new WASM and run the migration:

Tool: upgrade_contract
Args: {
  "contract_id": "mycontract.testnet",
  "wasm_path": "./target/wasm32-unknown-unknown/release/my_contract_v2.wasm",
  "migrate_method": "migrate",
  "network": "testnet"
}

✅ CONTRACT UPGRADED SUCCESSFULLY

📋 Upgrade Details:
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  Contract ID:     mycontract.testnet
  Network:         testnet
  New WASM Size:   162.45 KB
  Storage Cost:    1.624500 NEAR
  Deploy TX:       9ghi789...
  Migration TX:    0jkl012...

🔗 Explorer: https://explorer.testnet.near.org/transactions/9ghi789...

✨ Migration completed successfully!

Cost Estimation

User: How much will it cost to deploy a 500KB contract?

Claude: Let me calculate the deployment cost:

Tool: estimate_deployment_cost
Args: {"wasm_size_bytes": 512000}

💰 DEPLOYMENT COST ESTIMATE

📊 Cost Breakdown:
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  WASM Size:       500.00 KB (512,000 bytes)
  
  Storage Cost:    5.120000 NEAR
                   (5120000000000000000000000 yoctoNEAR)
  
  Estimated Gas:   15 TGas
  Gas Cost:        ~0.001500 NEAR
  
  ─────────────────────────────────
  Total Estimate:  5.121500 NEAR

💡 Recommendation:
   💸 Storage cost is significant. Ensure account has sufficient NEAR balance.

📝 Notes:
   • Storage costs are exact (1 byte = 0.00001 NEAR)
   • Gas costs may vary based on network conditions
   • Add ~10% buffer for safety

API Reference

deploy_contract

Deploy a WASM smart contract to a NEAR account.

Parameter	Type	Required	Description
account_id	string	✅	NEAR account to deploy to
wasm_path	string	❌*	Path to WASM file
wasm_base64	string	❌*	Base64-encoded WASM
network	string	❌	"mainnet" or "testnet" (default: testnet)
private_key	string	❌	Signing key (ed25519:xxx format)

*Either wasm_path or wasm_base64 required

initialize_contract

Call an initialization method on a deployed contract.

Parameter	Type	Required	Description
contract_id	string	✅	Contract account ID
method_name	string	✅	Init method name
args	object	❌	Method arguments
deposit	string	❌	NEAR to attach (e.g., "1.5")
gas	string	❌	Gas limit in TGas (default: 100)
network	string	❌	"mainnet" or "testnet"
private_key	string	❌	Signing key

upgrade_contract

Upgrade an existing contract with new WASM code.

Parameter	Type	Required	Description
contract_id	string	✅	Contract to upgrade
wasm_path	string	❌*	Path to new WASM file
wasm_base64	string	❌*	Base64-encoded new WASM
migrate_method	string	❌	Migration method to call
migrate_args	object	❌	Migration arguments
network	string	❌	"mainnet" or "testnet"
private_key	string	❌	Signing key

get_deployment_status

Check if an account has a contract deployed.

Parameter	Type	Required	Description
account_id	string	✅	Account to check
network	string	❌	"mainnet" or "testnet" (default: mainnet)

estimate_deployment_cost

Calculate storage costs for deployment.

Parameter	Type	Required	Description
wasm_path	string	❌*	Path to WASM file
wasm_base64	string	❌*	Base64-encoded WASM
wasm_size_bytes	number	❌*	Direct size in bytes

*At least one required

Networks

Mainnet: Production network (mainnet)
Testnet: Development network (testnet)

Default network is testnet for safety.

Security Notes

Never share or commit private keys
Use environment variables or credential files for keys
Test on testnet before mainnet deployments
Review contract code before deploying

License

MIT

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quality - not tested

maintenance

How are these scores calculated?

Maintenance

–Maintainers

–Response time

–Release cycle

–Releases (12mo)

Commit activity

Resources

GitHub Repository

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NEAR Contract Deployer MCP Server

Features

Installation

Configuration

Credentials

Generate Credentials

Usage with Claude Desktop

Example Conversations

Deploying a New Contract

Initializing a Contract

Checking Deployment Status

Upgrading a Contract

Cost Estimation

API Reference

deploy_contract

initialize_contract

upgrade_contract

get_deployment_status

estimate_deployment_cost

Networks

Security Notes

License

Maintenance

Resources

Looking for Admin?

Related MCP Servers

MIDL MCP Serverofficial

Solana Web3.js MCP Server

evernode-mcp

near-contract

Related MCP Connectors

Latest Blog Posts

MCP directory API