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Grove's MCP Server for Pocket Network

<img src="./mcp.png" alt="MCP" width="250" align="right"/>

Model Context Protocol (MCP) server for blockchain data access across 70+ networks via Grove's public endpoints.

Not a standalone CLI — requires an MCP client such as Claude Desktop, Claude Code CLI, or MCP Inspector.

Turn Claude into a blockchain analysis tool with natural language queries, token analytics, transaction inspection, domain resolution, and multi-chain comparisons.

Free Public Access: Uses Grove's free public RPC endpoints by default (may be rate limited). See https://grove.city/public-endpoints. For higher rate limits, set GROVE_APP_ID (get it at portal.grove.city).

Table of Contents

• Quick Start
• Features
• Detailed Installation
• Available Tools
  • Core Blockchain Tools
  • Domain Resolution
  • Transaction & Block Tools
  • Token Tools
  • Multi-Chain & Historical Analysis
  • Smart Contract Tools
  • Utility Tools
  • Endpoint Management
  • Solana Tools
  • Sui Tools
  • Cosmos SDK Tools
  • Documentation
• Extending with New Blockchains
• Architecture
• Development
• Supported Blockchains
• Example Usage
• License

Quick Start

Prerequisites: Node.js 18+ and npm

1. Install and build:

   npm install
   npm run build
   

2. Optional: Set GROVE_APP_ID (for higher rate limits):

   macOS/Linux:

   export GROVE_APP_ID=your_app_id
   

   Windows (Command Prompt):

   set GROVE_APP_ID=your_app_id
   

   Windows (PowerShell):

   $env:GROVE_APP_ID="your_app_id"
   

   Default uses public endpoints (may be rate limited). Get it at portal.grove.city.

3. Configure MCP client:

   Claude Desktop:

   macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

   Windows: %APPDATA%\Claude\claude_desktop_config.json

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

   Claude Code CLI:

   claude mcp add grove node /absolute/path/to/mcp-grove/dist/index.js
   

   MCP Inspector (testing):

   npx @modelcontextprotocol/inspector node dist/index.js
   

4. Restart client and start querying:

   "Get the balance of vitalik.eth"
   "Compare balances for 0x... across all EVM chains"
   "What's the current gas price on Ethereum?"
   

Features

Core Blockchain Access

• 70+ Networks: Ethereum, Polygon, Arbitrum, Optimism, Base, Solana, NEAR, Sui, and more
• Natural Language Queries: "get the latest height for ethereum" → direct results
• Free Public Access: No API keys required (may be rate limited)
• Optional Rate Limit Bypass: Set GROVE_APP_ID for higher limits
• Live JSON-RPC: Execute any blockchain RPC method directly

Tip: Set GROVE_APP_ID once; it applies to all chains (EVM, Solana, Cosmos, Sui).

Chain-Specific Features

EVM Chains:

• Domain Resolution: ENS (.eth) ↔ addresses, Unstoppable Domains (.crypto, .nft, etc.)
• Transaction Analysis: Full details, receipts, gas estimates
• Token Operations: ERC-20 balances, metadata (name, symbol, decimals, supply)
• Multi-Chain Analysis: Compare balances across all EVM chains
• Block Exploration: Detailed block data, event log searches
• Smart Contracts: Read-only contract calls
• Historical Queries: Balance checks at any block height
• Utilities: Unit conversion (wei/gwei/eth), address validation, hex decoding

Solana:

• SPL Tokens: Balances and metadata
• Transactions: Full details with compute units and fees
• Priority Fees: Real-time fee estimation
• Account Data: Program accounts, executable status, data owner

Sui:

• Balances & Coins: SUI balance, all coin balances, pagination
• Objects: Details, owned objects, type/content display
• Transactions: Blocks, queries, events
• Gas: Reference price, checkpoints

Cosmos SDK:

• Multi-Denom Balances: Native tokens and IBC assets
• Staking: Delegations, validators, rewards
• Governance: Proposals, votes
• IBC Support: Cross-chain queries via REST API

Detailed Installation

See CLAUDE_DESKTOP_SETUP.md for complete setup instructions.

Manual Setup

# Clone and build
git clone https://github.com/buildwithgrove/mcp-grove.git
cd mcp-grove
npm install
npm run build

# Configure MCP client (see Quick Start section above)
# Restart client when done

Available Tools

40+ specialized tools for blockchain analysis across EVM, Solana, and Cosmos chains:

Core Blockchain Tools (5 tools)

• query_blockchain - Natural language queries (e.g., "get the latest height for ethereum")
• list_blockchain_services - List all 70+ available networks
• get_blockchain_service - Get blockchain details and supported methods
• call_rpc_method - Call any JSON-RPC method directly
• get_supported_methods - Get all available RPC methods for a blockchain

Domain Resolution (3 tools)

• resolve_domain - Resolve ENS (.eth) or Unstoppable Domains (.crypto, .nft, etc.)
• reverse_resolve_domain - Reverse resolve Ethereum address to ENS name
• get_domain_records - Get ENS text records (avatar, email, url, twitter, github, etc.)

Transaction & Block Tools (5 tools)

• get_transaction - Get transaction details by hash
• get_transaction_receipt - Get receipt with status, gas used, logs, events
• estimate_gas - Estimate gas required for a transaction
• get_block_details - Get block information with optional full transaction list
• search_logs - Search event logs by address, topics, block range

Token Tools (2 tools)

• get_token_balance - Get ERC-20 token balance
• get_token_metadata - Get token name, symbol, decimals, total supply

Multi-Chain & Historical Analysis (3 tools)

• compare_balances - Compare native balance across all EVM chains
• get_historical_balance - Get balance at specific block height
• get_gas_price - Get current gas price with gwei/eth conversion

Smart Contract Tools (1 tool)

• call_contract_view - Execute read-only contract functions

Utility Tools (3 tools)

• convert_units - Convert between wei, gwei, and eth
• validate_address - Validate address format (EVM/Solana/Cosmos)
• decode_hex - Decode hex strings to UTF-8, ASCII, byte arrays

Endpoint Management (5 tools)

• list_endpoints - List all endpoints (filter by category)
• get_endpoint_details - Get endpoint details
• call_endpoint - Execute endpoint with custom parameters
• list_categories - List endpoint categories
• add_endpoint - Add new endpoints at runtime

Solana Tools (11 tools)

SPL Tokens:

• get_solana_token_balance - Get SPL token balance(s)
• get_solana_token_metadata - Get token decimals, supply, authorities

Accounts & Balances:

• get_solana_balance - Get SOL balance with lamports/SOL conversion
• get_solana_account_info - Get account data, owner, executable status

Blocks & Transactions:

• get_solana_block - Get block with optional full transaction list
• get_solana_transaction - Get transaction details by signature
• get_solana_signatures - Get transaction history

Fees:

• get_solana_prioritization_fees - Get recent priority fees
• get_solana_fee_for_message - Estimate fee for serialized message

Network & Programs:

• get_solana_block_height - Get current block height
• get_solana_program_accounts - List accounts owned by program

Sui Tools (11 tools)

Balances & Coins:

• get_sui_balance - Get SUI balance
• get_sui_all_balances - Get all coin balances
• get_sui_coins - Paginate coins by type

Objects:

• get_sui_object - Get object details
• get_sui_owned_objects - List owned objects

Transactions:

• get_sui_transaction - Get transaction block by digest
• query_sui_transactions - Query transactions with filters

Events & Chain:

• query_sui_events - Query events with filters
• get_sui_latest_checkpoint - Get latest checkpoint
• get_sui_checkpoint - Get checkpoint by ID

Cosmos SDK Tools

Accounts & Balances:

• get_cosmos_balance - Get balance for denom
• get_cosmos_all_balances - Get all token balances
• get_cosmos_account - Get account info (sequence, number)

Staking:

• get_cosmos_delegations - Get delegations
• get_cosmos_validators - List validators
• get_cosmos_validator - Get validator details
• get_cosmos_rewards - Get staking rewards

Transactions:

• get_cosmos_transaction - Get transaction by hash
• search_cosmos_transactions - Search transactions by events

Governance:

• get_cosmos_proposals - Get proposals (filter by status)
• get_cosmos_proposal - Get proposal details
• get_cosmos_proposal_votes - Get votes for proposal

Blocks:

• get_cosmos_latest_block - Get latest block
• get_cosmos_block - Get block at height

Chain Info:

• get_cosmos_params - Get chain parameters

Documentation (3 tools)

• get_doc_page - Get documentation pages from docs.grove.city
• get_endpoint_docs - Get endpoint documentation
• search_docs - Search Grove documentation

Extending with New Blockchains

Add new blockchain networks by editing src/config/blockchain-services.json:

{
  "id": "newchain-mainnet",
  "name": "New Chain Mainnet",
  "blockchain": "newchain",
  "network": "mainnet",
  "rpcUrl": "https://newchain.rpc.grove.city/v1/01fdb492",
  "protocol": "json-rpc",
  "category": "evm",
  "supportedMethods": [
    {
      "name": "eth_blockNumber",
      "description": "Returns the latest block number",
      "params": [],
      "category": "block"
    }
  ]
}

Then rebuild (npm run build) and restart your MCP client.

See EXTENDING.md for details.

Architecture

src/
├── index.ts                            # MCP server entry point (40+ tools)
├── types.ts                            # TypeScript type definitions
├── config/
│   ├── blockchain-services.json        # 70 blockchain network configurations
│   └── endpoints.json                  # HTTP endpoint configurations
├── handlers/                            # Tool handlers organized by feature
│   ├── blockchain-handlers.ts          # Core blockchain tools
│   ├── domain-handlers.ts              # ENS & domain resolution
│   ├── transaction-handlers.ts         # Transaction & block tools
│   ├── token-handlers.ts               # ERC-20 token tools
│   ├── multichain-handlers.ts          # Multi-chain comparison
│   ├── contract-handlers.ts            # Smart contract interactions
│   ├── utility-handlers.ts             # Conversion & validation utilities
│   ├── endpoint-handlers.ts            # HTTP endpoint management
│   ├── solana-handlers.ts              # Solana-specific tools
│   ├── cosmos-handlers.ts              # Cosmos SDK tools
│   ├── sui-handlers.ts                 # Sui blockchain tools
│   └── docs-handlers.ts                # Documentation tools
└── services/
    ├── blockchain-service.ts           # Core RPC calls & natural language queries
    ├── advanced-blockchain-service.ts  # EVM: Transactions, tokens, blocks, utilities
    ├── solana-service.ts               # Solana: SPL tokens, accounts, transactions, fees
    ├── sui-service.ts                  # Sui: balances, coins, objects, transactions, checkpoints
    ├── cosmos-service.ts               # Cosmos SDK: Staking, governance, IBC
    ├── domain-resolver.ts              # ENS & Unstoppable Domains resolution
    ├── endpoint-manager.ts             # Generic HTTP endpoint manager
    └── docs-manager.ts                 # Documentation retrieval

Development

Build:

npm run build

Watch mode:

npm run watch

Tests:

# Run all unit tests
npm test

# Run tests in watch mode
npm run test:watch

# Run tests with UI
npm run test:ui

# Run tests with coverage report
npm run test:coverage

Smoke tests (end-to-end test across chain types):

npm run build
npm run smoke

Tests EVM (Ethereum, Polygon, Base), Solana, Sui, Cosmos (Osmosis, Persistence), and Radix.

Supported Blockchains

70 blockchain networks available via Grove's public endpoints:

EVM Chains: Ethereum, Polygon, BSC, Avalanche, Gnosis, Celo, Fantom, Harmony, Moonbeam, Moonriver, Fuse, IoTeX, Oasys, Kaia, Berachain, Sonic, Ink, XRPL EVM

Layer 2 Solutions: Arbitrum, Optimism, Base, zkSync Era, zkLink Nova, Scroll, Linea, Mantle, Blast, Boba, Metis, Taiko, Unichain, opBNB, Fraxtal, Polygon zkEVM

Cosmos Ecosystem: Osmosis, Juno, Akash, Kava, Persistence, Stargaze, AtomOne, Cheqd, Chihuahua, Fetch.ai, Hyperliquid, Jackal, Pocket Network, Seda, Sei, Shentu

Non-EVM: Solana, NEAR, Sui, Tron, Radix

Testnets: Ethereum, Polygon, Arbitrum, Optimism, Base, Taiko, XRPL EVM, Giwa

Most chains use public endpoint ID 01fdb492. Foundation-sponsored endpoints (Kaia, XRPL EVM, Radix) offer better performance and are automatically preferred.

Example Usage

Blockchain Queries

Get the latest height for ethereum
List all available blockchain services
Show me supported methods for solana
Call eth_getBalance on ethereum for address 0x...

Domain Resolution

Resolve vitalik.eth
Reverse resolve address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
Get domain records for vitalik.eth with keys ["avatar", "url", "com.twitter"]

Transaction Analysis

Get transaction 0xabc123... on ethereum
Get transaction receipt for 0xabc123... on ethereum
Estimate gas for transferring 1 ETH from 0x... to 0x... on ethereum

Token Operations

Get USDC balance for address 0x... on ethereum
Get token metadata for USDC on ethereum (0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48)

Multi-Chain Analysis

Compare balances for address 0x... across all EVM chains
Get gas price on ethereum
Get historical balance of 0x... at block 18000000 on ethereum

Utilities

Convert 1000000000 wei to eth
Validate address 0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb for ethereum
Decode hex 0x48656c6c6f

Solana

Get SOL balance for address ABC123...
Get all SPL token balances for wallet DEF456...
Get USDC balance for Solana wallet (mint: EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v)
Get transaction details for signature 5a1b2c3d...
Get recent prioritization fees for Solana

Cosmos Ecosystem

Get OSMO balance for osmo1abc... on osmosis
Get all delegations for osmo1abc... on osmosis
Get list of validators on juno
Get staking rewards for akash1xyz... on akash
Get governance proposals on osmosis
Search transactions by event on kava

Using GROVE_APP_ID

Bypass rate limits by setting an environment variable:

macOS/Linux:

export GROVE_APP_ID=your_id_from_portal

Windows (Command Prompt):

set GROVE_APP_ID=your_id_from_portal

Windows (PowerShell):

$env:GROVE_APP_ID="your_id_from_portal"

The MCP server will automatically use GROVE_APP_ID for all requests. Get it at portal.grove.city.

Documentation

Show me all available Grove endpoints
Search the Grove documentation for "authentication"
Get the public endpoints page

See BLOCKCHAIN_USAGE.md for more examples.

License

MIT