@rigel-protocol/solana-mcp

✦ Rigel — Solana MCP server

Give your AI agent eyes on Solana. Rigel is an open-source MCP server that connects Claude Desktop, Claude Code, Cursor, and any stdio MCP client to the Solana blockchain and the pump.fun ecosystem.

Read-only by design. No private keys, no signing, no custody — the only configuration is which RPC to read from.

Tools

Tool	Input	Returns
rigel_get_wallet_balance	walletAddress	SOL balance + major SPL token holdings
rigel_inspect_token_data	tokenAddress	Metadata, supply, bonding-curve SOL, curve completion %
rigel_analyze_rug_risk	tokenAddress	Mint/freeze authority status, top-holder concentration, risk rating
rigel_check_first_buyers	tokenAddress	Bundle detection: fresh-wallet holders, shared funding wallets, supply concentration
rigel_deployer_history	tokenAddress	Deployer rap sheet: who launched it, wallet age, activity, remaining bag
rigel_market_snapshot	tokenAddress	Live price, market cap, liquidity, volume, buys/sells flow, momentum read
rigel_full_audit	tokenAddress	The whole battery in one call, with a combined verdict and top reasons

Quick start (Claude Desktop)

Paste into claude_desktop_config.json and restart Claude:

{
  "mcpServers": {
    "rigel-solana": {
      "command": "npx",
      "args": ["-y", "@rigel-protocol/solana-mcp"],
      "env": { "SOLANA_RPC_URL": "https://api.mainnet-beta.solana.com" }
    }
  }
}

Then ask your agent things like:

• "What's in this wallet? FC5i…"
• "Inspect this pump.fun token: 7xKq…"
• "Is this token a rug?"

Build from source

npm install
npm run build
node dist/index.js   # speaks MCP over stdio

Configuration

Env var	Default	Purpose
SOLANA_RPC_URL	https://api.mainnet-beta.solana.com	Any Solana RPC — public, Helius, Triton, or your own node

The public mainnet RPC rate-limits aggressively; a free Helius key is recommended for heavy use.

Security posture

• No private keys, seed phrases, or signing code anywhere in this codebase.
• Local stdio transport — queries go from your machine to your RPC, nothing in between.
• Logs go to stderr; stdout is reserved for MCP protocol traffic.
• Zod-validated inputs; friendly errors for invalid public keys and RPC failures.

Disclaimer

Rigel reports on-chain facts. The rug-risk rating is a heuristic over public data (authority status, holder concentration) — it cannot detect every risk, and nothing it outputs is financial advice.

License

MIT