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Chess Esca MCP server

by AnglerfishChess·io.github.AnglerfishChess/chess-esca-mcp·v0.4.0
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Read chess positions by the rules: legality with its evidence, draws, facts, openings, PGN

A94/100grade A
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Safety scan
A94/100

full report

Adoption
Growing

0 stars35 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Chess Esca tools (9)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • book_moves

    The moves a Polyglot opening book holds for a position.

  • ending
  • explain_move

    Whether one move is legal, and what it does or what forbids it.

  • facts

    The named facts esca reads off a position, group by group.

  • legal_moves

    Every legal move of a position, in SAN and in UCI.

  • opening

    The ECO code and name of a position, and of the line that reached it.

  • pgn

    A PGN game read into its headers, its moves and where it ended up.

  • position

    The whole state of a chess position, read by the rules.

  • to_pgn

    A list of moves written out as a PGN game.

Public scan report

scanner v0.1.5 · 2026-09-19 · same rubric, same numbers if you re-run it

no findings
  • Code scan7 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 8 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 94/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add chess-esca-mcp -- uvx chess-esca-mcp
Add to Cursor

Chess Esca: common questions

Is Chess Esca MCP server safe?
Yes, by our scan: it is graded A (94/100). Read the Chess Esca safety report
How do I install Chess Esca?
It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Chess Esca need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Chess Esca maintained?
The last commit was 10 days ago (2026-09-11). The latest release is v0.4.0.

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