x402 Merchant Check

com.gradientdecisions/merchant-checkVersion 1.0.0

Pre-payment merchant trust checks for x402 agents on Base and Solana.

Status

Responds473 msNov 14, 2026, 14:00 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:00 UTC
Latency: 473 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://mcp.gradientdecisions.com/mcpResponds473 msNov 14, 2026, 14:00 UTC

No sign-in

Claude Code

claude mcp add --transport http merchant-check https://mcp.gradientdecisions.com/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: merchant-check
Remote MCP server URL: https://mcp.gradientdecisions.com/mcp

Cursor

{
  "mcpServers": {
    "merchant-check": {
      "url": "https://mcp.gradientdecisions.com/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"merchant-check","type":"http","url":"https://mcp.gradientdecisions.com/mcp"}'

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Tools

1 tools

Tools of x402 Merchant Check
	Description		Read-only	Idempotent	Open world
`check_merchant`Before paying an unfamiliar merchant via x402, including one just discovered through a marketplace like Coinbase's x402 Bazaar, call this for a machine-readable assessment of their observable on-chain payment behavior, on Base or Solana. Returns a `recommendation` (PROCEED / CAUTION / INSUFFICIENT_SIGNAL) a payment policy can branch on directly, plus supporting evidence: trust tier, confidence, payer diversity, transaction history, category (data_api/compute/content_generation/financial_data/storage/other), known platform URL(s), and the merchant's own advertised price(s) compared against category peers, with no caller-supplied price required for that. This is decision support drawn from observed behavior, not a certification. PROCEED means the available evidence doesn't show cause for concern, not a guarantee of safety. INSUFFICIENT_SIGNAL means there isn't enough history to say either way, distinct from an actual concern. Add a specific quoted price to also check that exact figure against comparable sellers. $0.01 USDC per check, paid via x402.	Before paying an unfamiliar merchant via x402, including one just discovered through a marketplace like Coinbase's x402 Bazaar, call this for a machine-readable assessment of their observable on-chain payment behavior, on Base or Solana. Returns a `recommendation` (PROCEED / CAUTION / INSUFFICIENT_SIGNAL) a payment policy can branch on directly, plus supporting evidence: trust tier, confidence, payer diversity, transaction history, category (data_api/compute/content_generation/financial_data/storage/other), known platform URL(s), and the merchant's own advertised price(s) compared against category peers, with no caller-supplied price required for that. This is decision support drawn from observed behavior, not a certification. PROCEED means the available evidence doesn't show cause for concern, not a guarantee of safety. INSUFFICIENT_SIGNAL means there isn't enough history to say either way, distinct from an actual concern. Add a specific quoted price to also check that exact figure against comparable sellers. $0.01 USDC per check, paid via x402.	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Aug 19, 2026
Updated: Aug 19, 2026
Website: Not given
Repository: https://github.com/clevbot/merchant-check-mcp-⁠ (opens in a new tab)
Categories (suggested): E-commerceSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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