ToolVet

Chess Notation Tools

8 x402 APIs served from chess-notation.x402tookit.com

Every listing from Chess Notation Tools that ToolVet tracks. Each one is called on a schedule without paying and scored out of 100.

At a glance

Listings
8 x402 APIs
Passing at the latest check
7 of 8
Uptime, 30 days
56.2% on average across 8 listings
Price
$0.02 per call
Trust score
34 to 61, median 59
Paying wallets, 30 days
No usage data
Verified owner
None
Security findings
None found
Listed since
20 Oct 2026

No usage data. The x402 Bazaar reports paying wallets for the x402 APIs it lists; MCP servers and APIs submitted directly have none.

All 8 listings

Ranked by trust score.

  • 61trust
    Piece MovesChess Notation Tools

    Squares a knight, bishop, rook, queen, king or pawn reaches from a square on an empty board, with the count.

    x402 APIOther
    $0.02per call on Polygon
    63.2% uptime, 531 msPassing, checked 5 h ago
  • 59trust
    Time ControlChess Notation Tools

    Classify a chess time control (bullet, blitz, rapid, classical) from base minutes and increment, with estimated length.

    x402 APIOther
    $0.02per call on Polygon
    56.3% uptime, 542 msPassing, checked 1 h ago
  • 59trust
    Pgn HeadersChess Notation Tools

    Parse PGN tag pairs, check the Seven Tag Roster, result token and date format, and count the moves in the movetext.

    x402 APIDocuments & files
    $0.02per call on Polygon
    56.3% uptime, 529 msPassing, checked 37 min ago
  • 59trust
    Fen BoardChess Notation Tools

    Render a FEN position as an 8x8 ASCII board (White at the bottom) plus a piece-by-square list.

    x402 APIOther
    $0.02per call on Polygon
    56.3% uptime, 508 msPassing, checked 25 min ago
  • 58trust
    Square InfoChess Notation Tools

    File, rank, light or dark colour, 0-63 index, diagonals and mirror squares for a chess square like e4.

    x402 APIDocuments & files
    $0.02per call on Polygon
    53.3% uptime, 510 msPassing, checked 12 h ago
  • 58trust
    Square DistanceChess Notation Tools

    Distance between two chess squares as king moves, rook moves, bishop moves and knight moves on an empty board.

    x402 APIOther
    $0.02per call on Polygon
    53.3% uptime, 509 msPassing, checked 13 h ago
  • 58trust
    Material CountChess Notation Tools

    Material balance from a FEN: standard 1-3-3-5-9 point totals per side, difference and piece lists.

    x402 APIOther
    $0.02per call on Polygon
    53.3% uptime, 510 msPassing, checked 11 h ago
  • 34trust
    Fen ParseChess Notation Tools

    Validate a chess FEN: syntax of all six fields, king and pawn counts, castling and en passant consistency, piece totals.

    x402 APIDocuments & files
    $0.02per call on Polygon
    57.9% uptime, 541 msFailing, checked 27 h ago

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How these numbers are made

Each listing is called on a schedule without paying. Listings with usage or a verified owner are checked about every 30 minutes, others about every 6 hours. Uptime is the share of passing checks over 30 days, averaged across this provider's listings. Trust scores follow the published method. The figures on this page can be a few minutes behind the latest checks, and listings hidden after review aren't counted.