stackapps-suite-mcp

mcp-name: io.github.Explorer-64/stackapps-suite-mcp

One MCP server for the whole StackApps tool suite. Pay per call in USDC on Base mainnet via x402 — no account, no API key, no signup. Each member app (Imagcon today; more as they ship) contributes tools; one install covers the suite.

Install

claude mcp add stackapps-suite -- uvx stackapps-suite-mcp --wallet-key 0x...

Or in any MCP client config (Claude Desktop, Cursor, Windsurf, Cline):

{
  "mcpServers": {
    "stackapps-suite": {
      "command": "uvx",
      "args": ["stackapps-suite-mcp"],
      "env": { "WALLET_PRIVATE_KEY": "0x..." }
    }
  }
}

Requirements: uv, Python 3.11+, an EVM wallet holding USDC on Base mainnet (eip155:8453). Prefer the WALLET_PRIVATE_KEY env var over the --wallet-key argument.

Tools

Payment safety

The server refuses to sign any payment challenge that does not pay the StackApps suite wallet, or that exceeds the per-call cap ($0.50 USDC by default; override with STACKAPPS_MAX_USD_PER_CALL). A compromised or spoofed endpoint cannot redirect or inflate payments. Payments settle on-chain via EIP-3009 — the gas is sponsored; your wallet needs only USDC.

Never commit your wallet key, and never run this server on a public host with WALLET_PRIVATE_KEY set. The hosted endpoint at mcp.stackapps.app serves discovery metadata only.

Discovery

Machine-readable capability contract (Blueprint Protocol): mcp.stackapps.app/blueprint.txt

Links

• Suite: https://stackapps.app
• Source: https://github.com/Explorer-64/StackApps (stackapps-mcp/)
• Imagcon (current member app): https://imagcon.app