B20 Check

com.b20check/b20check

Verify B20 tokens on Base: issuer powers, imposter detection, signed EIP-712 verdicts.

Description as published in the official MCP registry.

Answers the MCP handshake and lists its tools. Checked 2026-10-04.

What we measured

Endpoint	`https://b20check.com/mcp`	registry
Handshake	Answers the MCP handshake and lists its tools (577 ms)	our check, 2026-10-04
Protocol version	2025-11-25	our check, 2026-10-04
Tools (2)	verify_b20_token, b20_stats	tools/list, 2026-10-04
Registry version	0.1.1 · active · updated 2026-07-12	registry
Package	`npm: b20check-mcp`	registry

Signed reports

No signed reports yet. A report carries a signed decision record from the reporter's gate, so it shows a real call went through, not just an opinion. How to file one.

Connect

claude mcp add --transport http b20check https://b20check.com/mcp

npx -y b20check-mcp

Commands are built from the registry entry. Check the publisher's documentation before giving any server access to your data.

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Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name com.b20check/b20check.