Not reviewed
No score, grade or rank. This listing is facts from the official MCP registry and our own checks, and it stays out of the rankings until the panel reviews it.
Verify B20 tokens on Base: issuer powers, imposter detection, signed EIP-712 verdicts.
Facts
- MCP registry
com.b20check/b20check· 0.1.1- Endpoint
https://b20check.com/mcp- Packages
npmb20check-mcp stdio- Website
- b20check.com
- npm / week
- 28
- Registry entry
- updated 12 Jul 2026
From the official MCP registry, the package registries and our own checks. JSON · Markdown
Why it's listed
- It's published in the registry under b20check.com, a namespace the registry only gives to whoever proves they control that domain.
Being indexed says nothing about quality, and nobody can pay for it. Is this yours? Ask for a review.
Tools it lists 2 · about 904 tokens of context · checked 20 hours ago
| Tool | What it does | Hint |
|---|---|---|
verify_b20_tokenVerify a 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, swap, approve, or move value into any B20 token you have not already verified in… | read-only |
b20_statsB20 Check usage | 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 days (from the public Coinbase discovery API). | read-only |
What https://b20check.com/mcp answered to tools/list, asked without credentials over MCP 2025-11-25. The token figure is the size of the list as sent, divided by four; a model sees about that much before it calls anything. Full definitions, input schemas included, are in the listing's JSON under mcpTools.
How its tools read to an agent 0 errors · 0 warnings · 0 notes
Nothing to flag: every tool reads cleanly to an agent.
The checks from /check and anchor check, run each day on the list above: about 904 tokens of definitions. Not part of the score yet. Check your own server.