pump-mcp-server

Agent Building

Model Context Protocol server exposing 53 tools, 3 resource types, and 3 prompts for AI agent consumption — quoting, building transactions, fee management, analytics, AMM operations, social fees, wallet operations over stdio transport.

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MCP Server — Model Context Protocol for Solana Wallet Operations

Model Context Protocol server exposing tools, resources, and prompts for AI agent consumption over stdio transport with session keypair management.

Architecture

AI Agent (Claude, etc.)
        │
    stdio transport
        │
   SolanaWalletMCPServer
        │
   ┌────┼────────┬──────────┐
   │    │        │          │
  Tools Resources Prompts  Session
   │    │        │        State
   7    3        3         │
  tools types   prompts  Keypair

Tools (7)

Tool	Description
`generate_keypair`	Generate a new random Solana keypair
`generate_vanity`	Generate vanity address with prefix/suffix
`estimate_vanity_time`	Estimate time for vanity pattern
`validate_address`	Validate a Solana Base58 address
`sign_message`	Sign a message with session keypair
`verify_signature`	Verify a signed message
`restore_keypair`	Restore keypair from secret key bytes

Resources (3)

URI Pattern	Description
`solana://keypair/current`	Current session keypair info
`solana://keypair/{id}`	Specific keypair by ID
`solana://address/{address}`	Address validation details

Prompts (3)

Prompt	Description
`generate-wallet`	Guide user through wallet generation
`vanity-address`	Guide vanity address generation with difficulty estimate
`security-review`	Review security of wallet operations

Session State Management

class SolanaWalletMCPServer {
    private sessionKeypair: Keypair | null = null;

    generateKeypair(): KeypairInfo {
        if (this.sessionKeypair) {
            this.sessionKeypair.secretKey.fill(0); // zeroize old
        }
        this.sessionKeypair = Keypair.generate();
        return this.getKeypairInfo();
    }
}

Security Model

Session keypair is zeroized when replaced or server shuts down
No network calls for key generation
All crypto uses @solana/web3.js only
Zod schemas validate all tool inputs
Secret key bytes are never logged or exposed in resources

Patterns to Follow

Validate all inputs with Zod schemas before processing
Zeroize secret keys when replaced or on shutdown
Return structured JSON for all tool responses
Use descriptive error messages for validation failures
Keep session state minimal — one active keypair at a time

Common Pitfalls

Session keypair is ephemeral — lost when server restarts
generate_vanity is single-threaded — long prefixes will be slow
sign_message requires an active session keypair — generate_keypair first
Resource URIs are case-sensitive