MCP server

B20 Check Official

com.b20check/b20check

Checked 25 Oct 2026, 20:29 UTC · Connection failed

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

Failed last checkVerified publisher: b20check.com

https://b20check.com/mcp

At a glance

Type: MCP server
Publisher: b20check.com (verified by the MCP Registry)
Status: Failed last check
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 25 Oct 2026, 20:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.b20check]
url = "https://b20check.com/mcp"

Gemini CLI

{"mcpServers":{"b20check":{"httpUrl":"https://b20check.com/mcp"}}}

Cursor

{"mcpServers":{"b20check":{"url":"https://b20check.com/mcp"}}}

VS Code

{"servers":{"b20check":{"type":"http","url":"https://b20check.com/mcp"}}}

Antigravity

agy mcp add b20check https://b20check.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"b20check","server_url":"https://b20check.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"b20check","server_url":"https://b20check.com/mcp"}

Automaton Colony
Screen Base smart contracts and B20 tokens: free on-chain check, paid Flash Audit over x402 (USDC).
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XRPLHub — XRPLScore, MPT issuer risk & payment pre-checks
XRPL wallet scores, wallet permissions, batch send, MPT risk, screening, pre-checks. Never signs.
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Risk and structure facts on one Solana or Base token, never a trading signal. Paid per call by x402.
Rightshold
License checks, signed rights proof, keyless pre-call checks for MCP servers, and the agent store
Brük — verified XRP Ledger answers
Verified XRP Ledger answers with proof: payment, send, and issuer checks. Pay per call via x402.
Biii
Fail-closed safe-to-pay verdicts on Base: known-bad wallets, look-alike tokens, repeat rug funders.
Trust Tools
Website security ratings, token verification, and tamper-evident ledger heads from Obelisk Gate.

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