Install x402-api for Claude Desktop
Claude Desktop reads mcpServers from claude_desktop_config.json. Restart the app after saving.
- Open ~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows, or ~/.config/Claude/claude_desktop_config.json on Linux.
- Paste the JSON config below.
- Replace placeholder secrets, then restart the client if it does not reload on its own.
~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"fernsugi-x402-api-mcp-server": {
"command": "npx",
"args": [
"-y",
"@x402-api/mcp-server@1.0.5"
],
"env": {
"X402_API_BASE_URL": "",
"X402_WALLET_PRIVATE_KEY": "YOUR_X402_WALLET_PRIVATE_KEY",
"X402_MAX_PER_CALL_USDC": "",
"X402_REFERRAL_SOURCE": "",
"X402_EXPECTED_PAY_TO": ""
}
}
}
}