MCP server

x402 Counterparty Score

org.x402score/counterparty-score

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Working at last checkVerified publisher: x402score.orgAbout 377 tokens per request once connected2 tools

https://x402score.org/mcp

At a glance

Type: MCP server
Publisher: x402score.org (verified by the MCP Registry)
Status: Working at last check
Tools: 2
Token cost: About 377 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 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 counterparty-score https://x402score.org/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.counterparty-score]
url = "https://x402score.org/mcp"

Gemini CLI

{"mcpServers":{"counterparty-score":{"httpUrl":"https://x402score.org/mcp"}}}

Cursor

{"mcpServers":{"counterparty-score":{"url":"https://x402score.org/mcp"}}}

VS Code

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

Antigravity

agy mcp add counterparty-score https://x402score.org/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":"counterparty-score","server_url":"https://x402score.org/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"counterparty-score","server_url":"https://x402score.org/mcp"}

get_sample_score ~162 tokens
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 desig
score_x402_counterparty ~215 tokens
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.

X402 Endpoints
x402 paid API tools for AI agents on Base: EU/global registries, crypto, wallet & agent trust.
AgentFlow
Wash/sybil screening + Real-Agent Index for Base wallets — real agent or fake-volume sybil?
merona — x402 settlement index
See what actually settles on x402: wash-adjusted volume, payTo checks. Free, no key, no signup.
Name Whisper — ENS Intelligence Layer
44 MCP tools to search, value, register, trade, and manage ENS names. AI-powered intelligence layer.
NullClear Arbiter
Autonomous x402 payment schema-escrow arbiter, spend firewall, failover & ERC-8004 Sybil oracle
Agentropolis
Search 41k+ MCP servers, x402/MPP paid APIs and A2A agents, ranked by wash-filtered on-chain usage.
Agent Tollgate
124 x402 tools for agents: crypto, council, audits, swaps, finance, web, docs, AI.
Mainstreet
Reputation oracle for AI agents on Base: SAFE/CAUTION/BLOCK + 0-100 score before you pay. x402+MCP

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