Chess Eval is answering right now. Last checked 2 min ago. It exposes 2 tools.
Stockfish chess eval: best move, score, principal variation, multipv. $0.005/call via x402.
Today is the operative word: we check Chess Eval every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.
claude mcp add chess-eval --transport http https://chess-eval.x402supply.com/mcp
{
"mcpServers": {
"chess-eval": {
"url": "https://chess-eval.x402supply.com/mcp"
}
}
}
[mcp_servers.chess-eval]
url = "https://chess-eval.x402supply.com/mcp"
{
"mcpServers": {
"chess-eval": {
"url": "https://chess-eval.x402supply.com/mcp"
}
}
}
{
"mcpServers": {
"chess-eval": {
"url": "https://chess-eval.x402supply.com/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
best_line
evaluate_position
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://chess-eval.x402supply.com/mcp | streamable-http | answering | 201 ms | 2 min ago |
Analyze chess positions and get best moves from UCI engines such as Stockfish or Leela
Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth.
Korea stock (KOSPI/KOSDAQ) bottom/top signals: verdict + score, scans. Pay-per-call x402.
A Stockfish MCP server to allow an LLM to play chess against Stockfish
US stock bottom/top signals: S&P500 + indexes, verdict + score, scans. Pay-per-call x402.
Crypto market microstructure, options, and on-chain metrics. Free discovery; $0.05/call via x402.
AI-operated crypto signal scores for 20 Coinbase USDC pairs. $0.001/call via x402.
Country economic momentum score (GDP, inflation, unemployment) via x402 USDC micropayments.
Answers built from our own checks of this server.