Denpyo MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 43 installs a week from npm. Last commit 20 Jul 2026.
Japanese invoice/receipt OCR + tax registration-number (T-number) verification, via x402.
We read the source, 2 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
const child = spawn(process.execPath, ['index.mjs'], {
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
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 denpyo-mcp -- npx -y denpyo-mcp
{
"mcpServers": {
"denpyo-mcp": {
"command": "npx",
"args": [
"-y",
"denpyo-mcp"
]
}
}
}
[mcp_servers.denpyo-mcp]
command = "npx"
args = ["-y", "denpyo-mcp"]
{
"mcpServers": {
"denpyo-mcp": {
"command": "npx",
"args": [
"-y",
"denpyo-mcp"
]
}
}
}
{
"servers": {
"denpyo-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"denpyo-mcp"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
EVM_PRIVATE_KEY (Base wallet private key holding USDC (0x...). Provide this or SVM_PRIVATE_KEY), SVM_PRIVATE_KEY (Solana wallet private key holding USDC (base58). Provide this or EVM_PRIVATE_KEY).
Validates and normalizes Japanese corporate numbers and invoice registration numbers (format only).
Search Japanese corporations and verify invoice numbers using official National Tax Agency data.
Verify Japanese companies: invoice T-numbers, Corporate Numbers, English names, shareholders
Verify Japanese companies, invoice-issuer registrations and addresses against government open data.
Web extraction, OCR (Japanese-strong), invoice and company data for AI agents. x402, no API key.
Japanese document AI for agents — invoice/meishi extraction, OCR, classification (hosted API).
Japan NTA qualified invoice issuer status of corporations by T-number. Records daily changes.
x402 payment verification: safe-to-pay preflight, on-chain receipt proof, OFAC/scam wallet screen
Answers built from our own checks of this server.