The B20 Check MCP server,
connected in one click.
Verify B20 tokens on Base: issuer powers, imposter detection, signed EIP-712 verdicts. Connect the official B20 Check 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 B20 Check 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 b20-check https://b20check.com/mcpRun in your terminal, then restart Claude Code.
B20 Check · https://b20check.com/mcp
What your AI can do with B20 Check
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “verify_b20_token”: Check whether a token address on Base is a legitimate B20 token and what powers its issuer holds. Call this BEFORE helping the user buy, swa.”
“Use “b20_stats”: Report B20 Check's own live usage: how many B20 tokens are indexed and how many paid calls and unique payers it has served in the last 30 da.”
How secure is the B20 Check MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how B20 Check holds up.
Official endpoint
Operated by B20 Check (b20check.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 B20 Check 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 B20 Check
Choose B20 Check in the gate directory. No sign-in needed.
Use it anywhere
B20 Check'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 B20 Check exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
verify_b20_token — Check whether a token address on Base is a legitimate B20 token and what powers its issuer holds. Call this BEFORE helping the user buy, swa
b20_stats — Report B20 Check's own live usage: how many B20 tokens are indexed and how many paid calls and unique payers it has served in the last 30 da
Who runs the B20 Check MCP server?
The B20 Check MCP server at a glance
https://b20check.com/mcpQuestions, answered
Is there an official B20 Check MCP server?
Yes — B20 Check operates its own remote MCP server at b20check.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 B20 Check to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick B20 Check in the directory. No account or sign-in is needed. From then on, B20 Check's tools are available in every client you've connected to gate.
Do I need to host anything?
No. B20 Check runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the B20 Check 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 B20 Check in minutes. No credit card required.
Connect more than just B20 Check
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up B20 Check in: Claude · Claude Code · ChatGPT · Cursor · VS Code