Spend Guard MCP Server: Install & Setup

Install Spend Guard in Claude Code

Claude Code

claude mcp add spend-guard -- npx -y @vulinh1704/spend-guard

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "spend-guard": {
      "command": "npx",
      "args": [
        "-y",
        "@vulinh1704/spend-guard"
      ]
    }
  }
}

Budgets, payee allowlists, price-spike checks and human approval for agents paying x402 paywalls

Probably not entirely. The listing mentions pay-per-call, credits or a subscription. Check the provider for current pricing.

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

Run: claude mcp add spend-guard -- npx -y @vulinh1704/spend-guard

io.github.jkambo1986-collab/stb-giftcards

Let an AI agent buy gift cards with USDC over x402, within limits the wallet owner sets.

TamTunnel/si-wallet-mcp

Self-hosted signing wallet: DIDs, agency grants, and task mandates for AI agents.

luca-network/spr

Seal every payment your AI agent makes as a signed record, on your own machine, with your key.

webios2026-byte/solradar-mcp

Solana meme-coin trust scores, rug-risk flags, and wallet analytics from SolRadar.

e2xlabs/stablecoinx-mcp

StablecoinX merchant tools: auth, payments, paymaster, webhooks, floYsh sites and vault settings.

msantagiulianab/solana-enterprise-payment-gateway

RFC 9110 x402 Solana compliance screening and micropayments gateway for AI agents.