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mcp/harbor
Verified official

SCRIPTMASTERLABS — B20 Truth MCP

v1.0.4 changelog · 7

com.scriptmasterlabs/b20-truth

Check Base B20 token claims against on-chain evidence. Settle-proven 2026-11-02 (SELF-PROOF).

transport:streamable-http tools:1
Website

Target client

run in your project directory 

claude mcp add --transport http b20-truth https://b20.scriptmasterlabs.com/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

b20_check

b20 check

All 1 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.