# B20 Check

> B20 Check — com-b20check-b20check. Use this tool when you need to verify the authenticity and issuer powers of B20 tokens on Base, detecting imposters and validating signed EIP-712 verdicts to ensure secure transactions. It solves problems related to token verification, imposter detection, and transaction security. The tool takes B20 token information as input and outputs a verified verdict, making it ideal for use cases requiring secure and trustworthy token transactions.

Canonical page: https://skillsregistry.net/skills/com-b20check-b20check  
JSON: https://api.skillsregistry.net/v1/skills/com-b20check-b20check

## Description

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

## Trust

- **Trust score (0–1):** 0.30
- **Verification tier:** unverified
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 0.1.1
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-02

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/com.b20check%2Fb20check)

## Use it

MCP endpoint published by the skill: `https://b20check.com/mcp`

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "com-b20check-b20check"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/com-b20check-b20check` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/com-b20check-b20check/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt