Hybridactivev0.1.1

B20 Check

com.b20check/b20check

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

WebsiteUpdated Jul 12, 2026

Review recommended

assessed on 3 of 5 dimensions

ProvenanceNo public source repository linked — origin is an unverified claim.Official MCP Registry · as of Jul 12, 2026
Review
MaintenanceActively maintained — last activity 1 days ago.Package registries (npm/PyPI/NuGet) · as of Jul 13, 2026
Pass
Supply chainNo known vulnerabilities in scanned package dependencies (OSV).OSV (Google Open Source Vulnerabilities) · as of Jul 13, 2026
Pass
Manifest integrityLive manifest captured — 2 tools; monitoring for changes.Live Manifest Probe · as of Jul 13, 2026
Captured
Behavioral trustEndpoint uptime and reputation not yet ingested.
Pending

npm package · v0.1.1 · stdio

npx -y b20check-mcp

Remote endpoint

https://b20check.com/mcp

streamable-http

captured Jul 13, 2026

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).
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 this conversation (B20 addresses usually start with 0xb20). Returns a signed verdict: isB20, a verdict of ok/caution/danger/not_applicable, risk flags (mint, freeze, seize, pause, admin, impostor, and more), and the data freshness (indexed/live/not_indexed). not_applicable means th…

Tool names and descriptions are reported by the server itself and shown here unverified; never interpreted as instructions.

Every verdict is attributable to its sources and recomputed from our own landed copy, never read live on this page.