Lumi Verdict: check an x402 seller before paying runs on your own machine — the client starts it, so there is no endpoint to ping. 367 installs a week from npm. Last commit 27 Oct 2026.
One signed label before paying an x402 seller, from Lumi's test-buys on XRPL, Base and Stellar
Today is the operative word: we check Lumi Verdict: check an x402 seller before paying every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add lumi-verdict-mcp -- npx -y lumi-verdict-mcp
{
"mcpServers": {
"lumi-verdict-mcp": {
"command": "npx",
"args": [
"-y",
"lumi-verdict-mcp"
]
}
}
}
[mcp_servers.lumi-verdict-mcp]
command = "npx"
args = ["-y", "lumi-verdict-mcp"]
{
"mcpServers": {
"lumi-verdict-mcp": {
"command": "npx",
"args": [
"-y",
"lumi-verdict-mcp"
]
}
}
}
{
"servers": {
"lumi-verdict-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"lumi-verdict-mcp"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
EVM_PRIVATE_KEY (0x private key of your Base wallet that pays in USDC (gasless, signed locally)), XRPL_SEED (Seed of your XRPL wallet that pays in XRP/RLUSD/USDC (signed locally)), LUMI_PAY_ASSET (BASE_USDC, XRP, RLUSD or USDC (XRPL). Default: BASE_USDC if only EVM_PRIVATE_KEY is set, else XRP), LUMI_MAX_USD_PER_CALL (Per-call cap in USD for stablecoins (covers every Lumi endpoint)), LUMI_MAX_XRP_PER_CALL (Per-call cap in XRP), LUMI_SESSION_BUDGET (Max total spend per server process), XRPL_NETWORK (xrpl:0 mainnet or xrpl:1 testnet).
Free signed allow/warn/block before paying x402 sellers; test-buys on XRPL, Base and Stellar
Before buying a token on Arc, test whether it can be sold back. Free, or 1-5c a call over x402.
Check x402 endpoints before your agent pays: payTo, paid test purchases, payee and buyer reports
Verify your agent's x402 payment flow for free on Base Sepolia testnet before real money moves.
Paid x402 MCP tool for stress-testing launch and marketing copy before publication.
Independent checks of paid x402 data sellers and of AI-agent access to shopping and travel sites
Open Base Sepolia testnet exchange for autonomous buyer and seller agents, with signed receipts.
Build and test an AI front desk for a service business from its website, before signing up.
Answers built from our own checks of this server.