x402 Counterparty Score

org.x402scorePublished by x402score.orgOfficial publisherv0.1.0Updated Oct 24, 2026

Trust scores for x402 sellers: wash-trading, real buyers, verdict. $0.02/score via x402 on Base.

VerifiedStreamable HTTPWeb executableFinanceSecurity & Monitoring

Overview

AI-generated overview

Remote MCP server that returns trust scores for x402 sellers, including a verdict, wash-trading ratio, real-buyer count and repeat-buyer rate.

What you can do
Score an x402 endpoint URL or pay-to address and get a trust verdict (trusted, caution or avoid) with wash-trading ratio, real-buyer count and repeat-buyer rate, computed from Base on-chain settlement data and the x402 Bazaar catalog, refreshed within the past 24 hours and billed at $0.02 per call. Fetch a free, clearly marked stale sample score in the same response schema, with no input and no payment, to inspect the format before paying.
When to use it
Use it when an assistant or agent is about to transact with an unfamiliar x402 seller and you want a quick, paid trust signal before paying or integrating. The free sample is useful for checking the response format first.
Requirements
Remote streamable HTTP endpoint at x402score.org; no authentication, environment variables or headers declared. The scoring tool costs $0.02 per call via x402 on Base, so a funded x402-capable client is needed; the sample tool is free.
Before you install
Each score_x402_counterparty call costs $0.02 through x402 on Base, so repeated calls spend real money. Scores are sold only if refreshed within the past 24 hours, and the sample tool returns fixed, expired data that should not be treated as a real assessment. The service sends queries to a third-party endpoint and derives results from on-chain and catalog data.

Installation

In SourceWeft

  1. Open x402 Counterparty Score in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/org.x402score%2Fcounterparty-score/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "x402-counterparty-score": {
      "type": "http",
      "url": "https://x402score.org/mcp"
    }
  }
}

Tools

2

score_x402_counterparty

Returns trust verdict (trusted/caution/avoid) with wash-trading ratio, real-buyer count, and repeat-buyer rate for an x402 endpoint URL or pay-to address. $0.02/call. Computed from Base on-chain settlement data and the x402 Bazaar catalog; a score is sold only if refreshed within the past 24 hours.

Parameterssubjectrequired

get_sample_score

Returns a clearly-marked stale sample counterparty score in the exact response schema of score_x402_counterparty (verdict, wash_trading_ratio, real_buyer_count, repeat_buyer_rate, source, updated_at, confidence). Free, no payment required, no input required. Sample data is fixed and expired by design — use it to validate response parsing, then call score_x402_counterparty ($0.02/call) for fresh decision-grade scores.

Takes no parameters.

Version history

1
  1. v0.1.0LatestSep 16, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.

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X402score Mcp

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Local MCP server that lets an assistant look up x402Score trust scores, grades and leaderboard data for x402-paid API endpoints before paying them.

STDIODesktop only
Web Search & ScrapingNot validated yetOct 26, 2026