# x402 Merchant Check

> x402 Merchant Check — com-gradientdecisions-merchant-check. Use this tool when you need to verify merchant trustworthiness and ensure price fairness in agentic buying decisions. It analyzes x402 history to provide context for informed purchasing choices, solving problems of uncertainty and potential fraud. The tool takes merchant data as input and outputs a trustworthiness score and price fairness evaluation.

Canonical page: https://skillsregistry.net/skills/com-gradientdecisions-merchant-check  
JSON: https://api.skillsregistry.net/v1/skills/com-gradientdecisions-merchant-check

## Description

Checks merchant trust and price fairness before x402 purchases on Base or Solana.

## Trust

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

## Facts

- **Version:** 0.1.0
- **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.gradientdecisions%2Fmerchant-check)

## Use it

MCP endpoint published by the skill: `https://mcp.gradientdecisions.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-gradientdecisions-merchant-check"
    }
  }
}
```

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