MCP Server for Pocket Network

Model Context Protocol (MCP) server for blockchain data access across 63 networks via Pocket Network's public RPC 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.

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. Configure MCP client:

   Claude Desktop:

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

   Windows: %APPDATA%\Claude\claude_desktop_config.json

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

   Claude Code CLI:

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

   MCP Inspector (testing):

   npx @modelcontextprotocol/inspector node dist/index.js

3. 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

• 63 Networks: Ethereum, Polygon, Arbitrum, Optimism, Base, Solana, NEAR, Sui, and more

• Natural Language Queries: "get the latest height for ethereum" → direct results

• Live JSON-RPC: Execute any blockchain RPC method directly

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

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 63 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 Pocket Network docs

• get_endpoint_docs - Get endpoint documentation

• search_docs - Search documentation

Extending with New Blockchains

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

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

See EXTENDING.md for details.

Architecture

Development

Build:

Watch mode:

Tests:

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

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

Supported Blockchains

63 blockchain networks available via Pocket Network'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

Example Usage

Blockchain Queries

Domain Resolution

Transaction Analysis

Token Operations

Multi-Chain Analysis

Utilities

Solana

Cosmos Ecosystem

Documentation

See BLOCKCHAIN_USAGE.md for more examples.

License

MIT