x402check
Risk-check counterparties before an AI agent pays; pay x402 resources only after a verified allow
MCP server · by caiovicentino
About
x402check is an MCP server published by caiovicentino. Marketplaces we read that list it: 1 (Official MCP Registry). The last change we recorded was on 2026-10-12. As of our marketplace pass on 2026-10-12.
What it asks for
- Runs on your machine
- Secrets: 2
- Settings: 5
Requires: X402CHECK_CREDIT_TOKEN (secret), X402CHECK_PAYER_KEY (secret)
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a local MCP server: npm package
Built from what Official MCP Registry declares.
claude mcp add --env "X402CHECK_CREDIT_TOKEN=<YOUR_X402CHECK_CREDIT_TOKEN>" --env "X402CHECK_PAYER_KEY=<YOUR_X402CHECK_PAYER_KEY>" --transport stdio x402check -- npx -y @x402check/mcp[mcp_servers.x402check]
command = "npx"
args = ["-y", "@x402check/mcp"]
[mcp_servers.x402check.env]
X402CHECK_CREDIT_TOKEN = "<YOUR_X402CHECK_CREDIT_TOKEN>"
X402CHECK_PAYER_KEY = "<YOUR_X402CHECK_PAYER_KEY>"{
"mcpServers": {
"x402check": {
"command": "npx",
"args": [
"-y",
"@x402check/mcp"
],
"env": {
"X402CHECK_CREDIT_TOKEN": "<YOUR_X402CHECK_CREDIT_TOKEN>",
"X402CHECK_PAYER_KEY": "<YOUR_X402CHECK_PAYER_KEY>"
}
}
}
}Replace the values in angle brackets with your own. We show the names of the settings, never values.
Optional settings it also lists: X402CHECK_BUDGET_USD, X402CHECK_MAX_PAYMENT_USD, X402CHECK_PINNED_KEYS.
We do not store launch arguments. If the server needs any, its own documentation names them.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 0.3.0 | Forks (GitHub): 1 Stars (GitHub): 12 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
Nothing has moved on this plugin since we started watching it.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
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Check stablecoin and x402 payments before an AI agent pays: approve, hold or reject.
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External counterparty-risk checks and signed receipts for autonomous agents and machine payments.
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payment-guard-mcp io.github.mlawsonking/payment-guard-mcp
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endpoint-diligence com.x402supply/endpoint-diligence
Live x402 endpoint trust/diligence check before you pay it. $0.02/call via x402.
-
AgentPay — trust routing + spend caps for x402 agents
Buyer-side trust oracle + capped sessions for x402 agents: verified_route, receipts, 17 free tools.
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SEC red-flag alerts & company dossiers, token risk, wallet checks, x402 preflight, scraping, OFAC.
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vouch io.github.notifuturo/vouch
Check if a counterparty is safe to pay: trust/risk score for AI agents. Scam/phishing screen.
-
x402-gateway net.gentechlabs/x402-gateway
Pay-per-call x402 services for agents: risk scoring, DeFi, wallet and market data.
-
402shield io.github.MitchSingh/402shield
x402 payment security and pre-execution transaction risk screening for autonomous AI agents.
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Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
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