SMX by Space Markets (testnet) MCP Server
io.github.Space-Markets-HQ/smx-mcpv0.1.2
SMX (Space Markets) testnet event markets and the Space Markets Index (SMI). Base Sepolia only.
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Active7d ago
Install SMX by Space Markets (testnet) MCP server
Install in Claude Code
claude mcp add smx -e X402_PRIVATE_KEY='<x402-private-key>' -- npx -y smx-mcpInstall in Cursor
{
"mcpServers": {
"smx": {
"command": "npx",
"args": [
"-y",
"smx-mcp"
],
"env": {
"X402_PRIVATE_KEY": "<x402-private-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"smx": {
"command": "npx",
"args": [
"-y",
"smx-mcp"
],
"env": {
"X402_PRIVATE_KEY": "<x402-private-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"smx": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"smx-mcp"
],
"env": {
"X402_PRIVATE_KEY": "<x402-private-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"smx": {
"command": "npx",
"args": [
"-y",
"smx-mcp"
],
"env": {
"X402_PRIVATE_KEY": "<x402-private-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| X402_PRIVATE_KEY | — | yes | 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). |
Freshness
Active — last maintenance signal 7d ago. The newest of the signals below sets the band.
Last commit (default branch)
no data · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-10-02 · 7d ago · official registry · v0.1.2
FAQ
›How do I install the SMX by Space Markets (testnet) MCP server in Claude Code?
Run: claude mcp add smx -e X402_PRIVATE_KEY='<x402-private-key>' -- npx -y smx-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does SMX by Space Markets (testnet) require an API key?
Yes. It expects X402_PRIVATE_KEY, of which 1 is a secret.
›Can I use SMX by Space Markets (testnet) as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is SMX by Space Markets (testnet) in the official MCP registry?
Yes, as io.github.Space-Markets-HQ/smx-mcp.