MCP Server

The Syntalic MCP server lets AI agents call the Pricing Intelligence API as native tools. The MCP handles wallet setup, multi-chain payment routing, and protocol negotiation automatically — you ask Claude a pricing question, the MCP pays and returns the answer.

Install

npx @syntalic/mcp-server --setup

The interactive setup walks through:

Generating a multi-chain wallet (Solana + EVM), or skipping if you want to bring your own keys
Wiring the MCP into Claude Code

After setup, fund the wallet with USDC on any of Solana, Base, or Tempo:

# Show your wallet addresses, balances, and config
npx @syntalic/mcp-server --info

# Back up your private keys before funding — mandatory
npx @syntalic/mcp-server --export-keys

Per-query pricing is $0.01–$0.02, so a few dollars buys hundreds of queries.

Use a dedicated agent wallet, not your primary wallet. The MCP only needs a small balance to operate.

Bring your own keys

Skip the auto-generated wallet by setting both env vars before running setup:

export CRUSH_EVM_PRIVATE_KEY=0x<your_evm_private_key>
export CRUSH_SOLANA_PRIVATE_KEY=<your_solana_base58_key>
npx @syntalic/mcp-server --setup

When both are set, the wallet file is ignored entirely. Both env vars are required together — setting only one is an error.

Manual MCP config

If your client doesn’t support automatic MCP setup, add this to your MCP config:

{
  "mcpServers": {
    "syntalic": {
      "command": "npx",
      "args": ["-y", "@syntalic/mcp-server"]
    }
  }
}

Multi-chain routing

The MCP holds USDC across Solana, Base, and Tempo. On every call, it tries chains in order (Solana → Base → Tempo) and uses the first one with sufficient balance. You don’t need to think about which chain to fund — top up wherever’s convenient. If a chain’s RPC is rate-limited or down, the MCP attempts payment anyway rather than blocking on RPC health. Requests never hang.

Configuration

Env var	Default	Purpose
`CRUSH_EVM_PRIVATE_KEY`	(auto)	Override EVM key (Base + Tempo)
`CRUSH_SOLANA_PRIVATE_KEY`	(auto)	Override Solana key
`CRUSH_API_BASE`	`https://api.syntalic.com`	API base URL (HTTPS required)
`CRUSH_SOLANA_RPC_URL`	mainnet-beta public RPC	Custom Solana RPC for balance checks
`CRUSH_TEMPO_RPC_URL`	`https://rpc.tempo.xyz`	Custom Tempo RPC for balance checks

CLI commands

Command	Purpose
`npx @syntalic/mcp-server`	Start the MCP server (default)
`... --setup`	Interactive setup (wallet + Claude Code wiring)
`... --export-keys`	Print private keys for backup
`... --info`	Show addresses, balances, and config
`... --help`	Usage overview

Get Started

Integrate

Payments

Reference

Install

Bring your own keys

Manual MCP config

Multi-chain routing

Configuration

CLI commands

What’s next

Available tools

Direct HTTP

​Install

​Bring your own keys

​Manual MCP config

​Multi-chain routing

​Configuration

​CLI commands

​What’s next

Available tools

Direct HTTP

Install

Bring your own keys

Manual MCP config

Multi-chain routing

Configuration

CLI commands

What’s next