Finance & crypto · Official remote MCP server

The x402 Doctor MCP server,
connected in one click.

Check x402 endpoints like a paying agent: diagnose, fix plans, pre-payment checks. Free quick check. Connect the official x402 Doctor MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.

Connect x402 Doctor free How it works

Free to start · No credit card · No hosting needed

Use this server

Add x402 Doctor 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-doctor-x402-doctor https://x402-doctor.onrender.com/mcp

Run in your terminal, then restart Claude Code.

x402 Doctor · https://x402-doctor.onrender.com/mcp

What you can do

What your AI can do with x402 Doctor

Real prompts you can type the moment it's connected — no setup, no docs to read.

“Use “x402_quick_check”: Free: does this x402 endpoint work for a paying agent? Returns pass, warn or fail with the number of problems and the top three. Limited to.”

“Use “x402_diagnose”: Paid ($0.01 USDC via x402 on Base or Solana): diagnose an x402 endpoint the way a paying agent would, without paying it: the 402 challenge f.”

“Use “x402_preflight”: Paid ($0.001 USDC via x402 on Base or Solana): call this before your agent pays an x402 endpoint. Returns go, caution or no_go, the recommen.”

“Use “x402_fix”: Paid ($0.05 USDC via x402 on Base or Solana): diagnoses your x402 endpoint, then returns per problem the concrete change as code for your st.”

Security check

How secure is the x402 Doctor 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 Doctor holds up.

A97/100

Security grade A

gate scanned 7 tools on Oct 1, 2026 for prompt injection and risky tool definitions — nothing to flag.

lowx402_quick_check: Embedded upsell directives to the AI agent

Full report Badge for your README

✓ Verified directory serverx402 Doctor · onrender.com

Official endpoint

Operated by x402 Doctor (onrender.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 Doctor adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.

Run the free scanner on x402 Doctor's server →

How it works

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 Doctor

Choose x402 Doctor in the gate directory. No sign-in needed.

Use it anywhere

x402 Doctor's tools are live in every AI client you've connected — with rules and logging built in.

Connect x402 Doctor free

Free to start · No credit card · No hosting needed

Straight from the server

The actual tools x402 Doctor exposes

Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.

x402_quick_check — Free: does this x402 endpoint work for a paying agent? Returns pass, warn or fail with the number of problems and the top three. Limited to

x402_diagnose — Paid ($0.01 USDC via x402 on Base or Solana): diagnose an x402 endpoint the way a paying agent would, without paying it: the 402 challenge f

x402_preflight — Paid ($0.001 USDC via x402 on Base or Solana): call this before your agent pays an x402 endpoint. Returns go, caution or no_go, the recommen

x402_fix — Paid ($0.05 USDC via x402 on Base or Solana): diagnoses your x402 endpoint, then returns per problem the concrete change as code for your st

x402_preflight_batch — Paid ($0.005 USDC via x402 on Base or Solana): the pre-payment check for up to 10 x402 endpoints at once. Per endpoint go, caution or no_go,

x402_preflight_deep — Paid ($0.01 USDC via x402 on Base or Solana): for expensive calls. The pre-payment verdict (go, caution or no_go) plus the full diagnosis, t

feedback — Report a bug, a missing feature or anything else about this service, in a structured way. Free. A person reads every report; nothing is run

Author

Who runs the x402 Doctor MCP server?

onrender.com

Homepage More servers from onrender.com →

Own this server? Claim the listing →

Server facts

The x402 Doctor MCP server at a glance

Endpointhttps://x402-doctor.onrender.com/mcp

Operated byx402 Doctor (onrender.com)

CategoryFinance & crypto

Sign-inNone — public data only

Available in gateYes — one-click connect

Works withClaude, ChatGPT, Cursor & any MCP client

FAQ

Questions, answered

Is there an official x402 Doctor MCP server?

Yes — x402 Doctor operates its own remote MCP server at x402-doctor.onrender.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 Doctor to Claude or ChatGPT?

Add gate's gateway URL to your AI client once, then pick x402 Doctor in the directory. No account or sign-in is needed. From then on, x402 Doctor's tools are available in every client you've connected to gate.

Do I need to host anything?

No. x402 Doctor runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.

Is the x402 Doctor 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.