The x402Shield MCP server,
connected in one click.
Public demo: evaluate AI-agent payment authorization and approval policy. No signing, no settlement. Connect the official x402Shield 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 x402Shield 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 x402shield https://x402shield.dev/api/mcpRun in your terminal, then restart Claude Code.
x402Shield · https://x402shield.dev/api/mcp
What your AI can do with x402Shield
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “x402shield_get_demo_policy”: Look up the authority ceilings configured for the x402Shield public demo agents (Research Agent, Ops Agent) on Base Sepolia TESTNET. Use thi.”
“Use “x402shield_authorize_payment”: Check whether the demo AI agent is financially authorized to make a proposed payment, BEFORE any wallet or signer would be asked to execute.”
“Use “x402shield_get_authorization”: Look up the recorded decision, reason and evidence references for a payment previously checked with x402shield_authorize_payment, by its tra.”
“Use “x402shield_list_demo_transactions”: List the most recent payment authorization decisions recorded by this public demo (both from the web console and from MCP callers). Useful t.”
How secure is the x402Shield MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how x402Shield holds up.
Official endpoint
Operated by x402Shield (x402shield.dev) 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 x402Shield 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 x402Shield
Choose x402Shield in the gate directory. No sign-in needed.
Use it anywhere
x402Shield'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 x402Shield exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
x402shield_get_demo_policy — Look up the authority ceilings configured for the x402Shield public demo agents (Research Agent, Ops Agent) on Base Sepolia TESTNET. Use thi
x402shield_authorize_payment — Check whether the demo AI agent is financially authorized to make a proposed payment, BEFORE any wallet or signer would be asked to execute
x402shield_get_authorization — Look up the recorded decision, reason and evidence references for a payment previously checked with x402shield_authorize_payment, by its tra
x402shield_list_demo_transactions — List the most recent payment authorization decisions recorded by this public demo (both from the web console and from MCP callers). Useful t
x402shield_get_evidence — Get the fuller evidence trail behind a previously-decided payment: policy/delegation provenance, the delegation tree it was evaluated under,
Who runs the x402Shield MCP server?
The x402Shield MCP server at a glance
https://x402shield.dev/api/mcpQuestions, answered
Is there an official x402Shield MCP server?
Yes — x402Shield operates its own remote MCP server at x402shield.dev. 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 x402Shield to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick x402Shield in the directory. No account or sign-in is needed. From then on, x402Shield's tools are available in every client you've connected to gate.
Do I need to host anything?
No. x402Shield runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the x402Shield 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 x402Shield in minutes. No credit card required.
Connect more than just x402Shield
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up x402Shield in: Claude · Claude Code · ChatGPT · Cursor · VS Code