presign-guard wallet for Grok
io.github.fizzl13/presign-guard-wallet
Agent wallet with limits: pays x402/MPP on Base, Tempo, XRP Ledger and Algorand; phone approval.
client:Grok
transport:stdio
runtime:npm
Install presign-guard wallet in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"presign-guard-wallet": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"presign-guard-wallet-mcp"
],
"env": {
"AGENT_KEY": "<AGENT_KEY>",
"LIMIT_USDC_PER_TX": "<LIMIT_USDC_PER_TX>",
"LIMIT_USDC_PER_DAY": "<LIMIT_USDC_PER_DAY>",
"TELEGRAM_BOT_TOKEN": "<TELEGRAM_BOT_TOKEN>",
"TELEGRAM_CHAT_ID": "<TELEGRAM_CHAT_ID>",
"WALLET_SERVER_URL": "<WALLET_SERVER_URL>",
"WALLET_SERVER_KEY": "<WALLET_SERVER_KEY>",
"CHAIN": "<CHAIN>",
"MAX_PAYMENT_USD": "<MAX_PAYMENT_USD>",
"PRESIGN_CREDIT_KEY": "<PRESIGN_CREDIT_KEY>",
"RPC_URL": "<RPC_URL>",
"TEMPO": "<TEMPO>",
"TEMPO_CHAIN": "<TEMPO_CHAIN>",
"TEMPO_RPC_URL": "<TEMPO_RPC_URL>",
"MPP_SESSION_DEPOSIT": "<MPP_SESSION_DEPOSIT>",
"ALGORAND_MNEMONIC": "<ALGORAND_MNEMONIC>",
"ALGORAND_NETWORK": "<ALGORAND_NETWORK>",
"XRPL_SEED": "<XRPL_SEED>",
"XRPL_NETWORK": "<XRPL_NETWORK>",
"XRPL_WS_URL": "<XRPL_WS_URL>"
}
}
}
}Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs