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SMX by Space Markets (testnet)

Official registry Other

SMX (Space Markets) testnet event markets and the Space Markets Index (SMI). Base Sepolia only.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package smx-mcp
Claude Code 
claude mcp add smx-by-space-markets-testnet -e 'X402_PRIVATE_KEY=<your x402_private_key>' -e 'SMX_RPC=<SMX_RPC>' -- npx -y smx-mcp@0.1.2
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "smx-by-space-markets-testnet": {
            "command": "npx",
            "args": [
                "-y",
                "smx-mcp@0.1.2"
            ],
            "env": {
                "X402_PRIVATE_KEY": "<your x402_private_key>",
                "SMX_RPC": "<SMX_RPC>"
            }
        }
    }
}

Environment variables

  • X402_PRIVATE_KEY secret Optional. Your own Base Sepolia TEST wallet key holding Circle testnet USDC, used only by the paid tools ($0.01 testnet USDC per call, no real value). Never use a wallet with real funds.
  • SMX_RPC Optional Base Sepolia RPC URL (default https://sepolia.base.org).

Frequently asked questions

What is SMX by Space Markets (testnet)?

SMX (Space Markets) testnet event markets and the Space Markets Index (SMI). Base Sepolia only.

How do I install SMX by Space Markets (testnet)?

It runs on your machine. In Claude Code: claude mcp add smx-by-space-markets-testnet -e 'X402_PRIVATE_KEY=<your x402_private_key>' -e 'SMX_RPC=<SMX_RPC>' -- npx -y smx-mcp@0.1.2. For other clients, paste the JSON configuration from this page into their MCP settings.

Does SMX by Space Markets (testnet) need an API key?

Yes. It expects X402_PRIVATE_KEY, which you set in its configuration.

Who maintains SMX by Space Markets (testnet)?

It is published by Space-Markets-HQ. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.