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CounterpartyCheck MCP Server

answering

CounterpartyCheck is answering right now. Last checked 5 min ago. 389 installs a week from npm. It exposes 1 tools.

Pre-payment check for EVM/Solana addresses: ok/caution/block with reasons. By Crypto Money Maker

Installs per day peak 389 · avg 12
a month agotoday
Uptime history 70 hours of history
70 hours agonow
100.0%
Uptime 24h
91 of 91 checks
1
Tools
read from the server
80 ms
Response time
average over 24h
389
Installs / week
npm and PyPI

Nothing serious here today

Today is the operative word: we check CounterpartyCheck every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 5 min ago.

run in your terminal
claude mcp add counterpartycheck --transport http https://api.youraitools.co/counterpartycheck/mcp
Settings → Connectors → Add custom connector, then paste this address
https://api.youraitools.co/counterpartycheck/mcp
~/.codex/config.toml
[mcp_servers.counterpartycheck]
url = "https://api.youraitools.co/counterpartycheck/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "counterpartycheck": {
      "url": "https://api.youraitools.co/counterpartycheck/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "counterpartycheck": {
      "type": "http",
      "url": "https://api.youraitools.co/counterpartycheck/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

counterparty
check_counterparty
Pre-payment counterparty check: before paying, approving or interacting with an EVM (Base, Ethereum, Polygon, Arbitrum One) or Solana address, get ok / caution / block. Free preview tier: verdict, confidence, address kind and flag counts. The paid x402 endpoints /v1/lite ($0.005), /v1/quick ($0.015) and /v1/full ($0.05) add the reasons and evidence (OFAC SDN, scam lists, x402 directory, verification, deployer, names, cross-chain, age, exposure). Informational safety check, not legal or financial advice.

Endpoints

URLTransportStateLatencyChecked
https://api.youraitools.co/counterpartycheck/mcp streamable-http answering 72 ms 5 min ago

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CounterpartyCheck — questions

Answers built from our own checks of this server.

What can CounterpartyCheck do?
It exposes 1 tools, read directly from the server on our last check. Among them: check_counterparty. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is CounterpartyCheck working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 80 ms. The bar chart above shows every period we have measured.
How do I connect CounterpartyCheck?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does CounterpartyCheck need an API key?
No. CounterpartyCheck completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is CounterpartyCheck?
It answers our handshake in 80 ms on average, which is faster than 97% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use CounterpartyCheck?
The npm package @agentgate-builder/counterpartycheck was installed 389 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.