Finance & crypto · Official remote MCP server

The 402Signal MCP server,
connected in one click.

Fail-closed live-endpoint x402 router. POST /route, $0.01 USDC on Base, Solana, Algorand. Connect the official 402Signal MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.

Connect 402Signal free How it works

Free to start · No credit card · No hosting needed

Use this server

Add 402Signal 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 402signal https://402signal.com/mcp

Run in your terminal, then restart Claude Code.

402Signal · https://402signal.com/mcp

What you can do

What your AI can do with 402Signal

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

“Use “route”: 402Signal is the independent check an AI agent makes right before spending. It finds the strongest x402 route across Base, Solana, and Algor.”

“Use “preview”: Request-time catalog preflight over upstream catalogs plus a local shadow. Returns discovery_matches, displayed hits, claimed vs observed, n.”

“Use “validate”: Unpaid probe: is this seller URL agent-ready? Fail-closed SSRF. Returns readiness, claimed vs observed, flags. Does not charge.”

Security check

How secure is the 402Signal MCP server?

Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how 402Signal holds up.

✓ Verified directory server402Signal · 402signal.com

Official endpoint

Operated by 402Signal (402signal.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 402Signal adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.

Run the free scanner on 402Signal'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 402Signal

Choose 402Signal in the gate directory. No sign-in needed.

Use it anywhere

402Signal's tools are live in every AI client you've connected — with rules and logging built in.

Connect 402Signal free

Free to start · No credit card · No hosting needed

Straight from the server

The actual tools 402Signal exposes

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

route — 402Signal is the independent check an AI agent makes right before spending. It finds the strongest x402 route across Base, Solana, and Algor

preview — Request-time catalog preflight over upstream catalogs plus a local shadow. Returns discovery_matches, displayed hits, claimed vs observed, n

validate — Unpaid probe: is this seller URL agent-ready? Fail-closed SSRF. Returns readiness, claimed vs observed, flags. Does not charge.

Author

Who runs the 402Signal MCP server?

402signal.com

Homepage More servers from 402signal.com →

Own this server? Claim the listing →

Server facts

The 402Signal MCP server at a glance

Endpointhttps://402signal.com/mcp

Operated by402Signal (402signal.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 402Signal MCP server?

Yes — 402Signal operates its own remote MCP server at 402signal.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 402Signal to Claude or ChatGPT?

Add gate's gateway URL to your AI client once, then pick 402Signal in the directory. No account or sign-in is needed. From then on, 402Signal's tools are available in every client you've connected to gate.

Do I need to host anything?

No. 402Signal runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.

Is the 402Signal 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.