The x402 Preflight MCP server,
connected in one click.
Inspect and validate an x402 endpoint before an autonomous agent spends USDC. Connect the official x402 Preflight MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add x402 Preflight to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http x402-preflight https://x402.chikocorp.com/mcpRun in your terminal, then restart Claude Code.
x402 Preflight · https://x402.chikocorp.com/mcp
What your AI can do with x402 Preflight
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “inspect_x402_endpoint”: Call before spending on an unfamiliar x402 resource. Free, read-only, and never sends payment credentials.”
“Use “audit_x402_endpoint”: Purchase a deep, deterministic audit of payment schema, discovery metadata, redirects, CORS, cache, and operational signals. Returns HTTP 40.”
“Use “order_x402_remediation”: Purchase a durable remediation intake after a failed audit. Creates an order but never deploys, signs, or spends automatically.”
How secure is the x402 Preflight MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how x402 Preflight holds up.
Official endpoint
Operated by x402 Preflight (chikocorp.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If x402 Preflight adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick x402 Preflight
Choose x402 Preflight in the gate directory. No sign-in needed.
Use it anywhere
x402 Preflight's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools x402 Preflight exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
inspect_x402_endpoint — Call before spending on an unfamiliar x402 resource. Free, read-only, and never sends payment credentials.
audit_x402_endpoint — Purchase a deep, deterministic audit of payment schema, discovery metadata, redirects, CORS, cache, and operational signals. Returns HTTP 40
order_x402_remediation — Purchase a durable remediation intake after a failed audit. Creates an order but never deploys, signs, or spends automatically.
Who runs the x402 Preflight MCP server?
The x402 Preflight MCP server at a glance
https://x402.chikocorp.com/mcpQuestions, answered
Is there an official x402 Preflight MCP server?
Yes — x402 Preflight operates its own remote MCP server at x402.chikocorp.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect x402 Preflight to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick x402 Preflight in the directory. No account or sign-in is needed. From then on, x402 Preflight's tools are available in every client you've connected to gate.
Do I need to host anything?
No. x402 Preflight runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the x402 Preflight MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect x402 Preflight in minutes. No credit card required.
Connect more than just x402 Preflight
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up x402 Preflight in: Claude · Claude Code · ChatGPT · Cursor · VS Code
Give your AI x402 Preflight — safely.
One URL. All MCPs. Full control. Free to start.
Get started free