Ext Ops Panel
Open dashboard

com.x402supply/chess-eval

Stockfish chess eval: best move, score, principal variation, multipv. $0.005/call via x402.

MCP server · by x402supply.com

About

com.x402supply/chess-eval is an MCP server published by x402supply.com. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-13.

What it asks for

  • Runs remotely

None of the marketplaces we read publishes its tools or the settings it asks for.

What it declares, asks for and runs, in full

Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.

Works with

  • Claude Code
  • Codex
  • Cursor
  • VS Code
  • Copilot CLI

A one-click link opens the client, which asks you to confirm before it adds the server.

From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.

Connect

Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.

As a remote MCP server

Built from what Official MCP Registry declares.

Claude CodeTerminal
claude mcp add --transport http chess-eval https://chess-eval.x402supply.com/mcp
Codex~/.codex/config.toml
[mcp_servers.chess-eval]
url = "https://chess-eval.x402supply.com/mcp"
Cursor~/.cursor/mcp.json
{
  "mcpServers": {
    "chess-eval": {
      "url": "https://chess-eval.x402supply.com/mcp"
    }
  }
}

Where it is published

MarketplaceStatusVersionFiguresVerifiedFirst seen
Official MCP Registry (Open the registry record) Listed 1.0.1 No figure published Not marked

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

What changed

Nothing has moved on this plugin since we started watching it.

Similar plugins

Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.

  • Chess UCI

    Analyze chess positions and get best moves from UCI engines such as Stockfish or Leela

    by AnglerfishChess · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Stockfish MCP

    A Stockfish MCP server to allow an LLM to play chess against Stockfish

    by stepbot · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • BetterChess

    Chess MCP for Claude: engine analysis, attack maps, game review. One URL, no install.

    by betterchess.co · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Chess Esca

    Read chess positions by the rules: legality with its evidence, draws, facts, openings, PGN

    by AnglerfishChess · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • AI Chess Arena

    Open chess platform where AI agents register, get matched and play each other. Referee only.

    by PixelJunkie33 · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • chesswithclaw io.github.Alightttt/chesswithclaw

    Play chess live against your own personal AI agent — OpenClaw, Hermes, and similar.

    by Alightttt · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • chess-coach-ai

    AI-powered chess coaching system with multi-agent cowork architecture. 4 specialized agents work together to provide comprehensive coaching: • Intel — Opponent scouting via…

    by datoga · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • chess-mcp io.github.mrfentmen/chess-mcp

    Use this MCP server to chess.com. Player profiles, ratings, game archives, leaderboards, and...

    by mrfentmen · MCP server

    Listed on: Official MCP Registry · Describes a similar job

  • agent-arcade-mcp io.github.lulzasaur9192/agent-arcade-mcp

    Play Chess, Go, Trading & more against AI agents on Agent Arcade with Elo rankings

    by lulzasaur9192 · MCP server

    Listed on: Official MCP Registry · Describes a similar job

  • chesscom-mcp io.github.mrfentmen/chesscom-mcp

    Keyless MCP server for Chess.com: player profiles, ratings by time control, daily puzzle,...

    by mrfentmen · MCP server

    Listed on: Official MCP Registry · Describes a similar job

Similar plugins by marketplace

The same question asked of one marketplace at a time: is there an analog of this plugin there?

Has a listing on Claude Code: claude-plugins-community (5)
  • chess-coach-ai

    AI-powered chess coaching system with multi-agent cowork architecture. 4 specialized agents work together to provide comprehensive coaching: • Intel — Opponent scouting via…

    by datoga · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • memoriant-eval-sandbox-skill

    AI agent evaluation sandbox for Claude Code. Holdout scenario testing with Doer/Judge/Adversary/Observer roles, probabilistic satisfaction scoring, and append-only JSONL audit…

    by NathanMaine · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes a similar job

  • NVIDIA Skills

    Find the right NVIDIA skill for GPU acceleration, CUDA, AI agents, data loading, training, inference, robotics, Physical AI, Omniverse, simulation, and other NVIDIA-powered…

    by NVIDIA · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude Code: claude-plugins-community · Describes a similar job

  • contextstellar

    Context engineering plugin for Claude Code — real-time prompt scoring, RLM adaptive weights, and token optimization. Scores every tool use across 5 dimensions (token utilization…

    by sunnypatneedi · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes a similar job

  • accelbyte-ai-plugins

    Public AI coding agents, skills, and MCP servers for AccelByte.

    by AccelByte · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes a similar job

Has a listing on Claude Code: claude-plugins-official (5)
  • NVIDIA Skills

    Find the right NVIDIA skill for GPU acceleration, CUDA, AI agents, data loading, training, inference, robotics, Physical AI, Omniverse, simulation, and other NVIDIA-powered…

    by NVIDIA · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude Code: claude-plugins-community · Describes nearly the same job

  • DeepEval

    Skills for adding DeepEval evaluations, tracing, datasets, Confident AI reports, and iterative improvement loops to AI applications.

    by confident-ai · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Community GitHub marketplaces · Describes nearly the same job

  • amd-skills

    AMD's verified Agent Skills in one plugin: route image/audio through local AI on Ryzen AI, serve LLMs on AMD Instinct GPUs with vLLM, optimize inference throughput with Hyperloom…

    by amd · Plugin bundle

    Listed on: Claude Code: claude-plugins-official · Describes nearly the same job

  • LinqAlpha

    LinqAlpha financial research in Claude: guided setup for the LinqAlpha connector, capability-based source selection for fundamentals, estimates, transcripts, filings and market…

    by linq-lab · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Community GitHub marketplaces · Describes nearly the same job

  • langfuse

    Skills for working with Langfuse, the open-source LLM engineering platform for tracing, prompt management, and evaluation.

    by langfuse · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

Has a listing on Claude: knowledge-work-plugins (5)
  • langfuse

    Skills for working with Langfuse, the open-source LLM engineering platform for tracing, prompt management, and evaluation.

    by langfuse · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

  • Daloopa

    Financial analysis skills powered by Daloopa's institutional-grade data

    by daloopa · Plugin bundle

    Listed on: Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

  • figma

    Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…

    by figma · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • Desktop Commander

    MCP server for terminal commands, file operations, and process management

    by wonderwhy-er · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-official, Docker MCP Catalog, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • AI-Firstify

    AI-first project auditor and re-engineer based on the 9 design principles and 7 design patterns from the TechWolf AI-First Bootcamp

    by techwolf-ai · Plugin bundle

    Listed on: Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

Has a listing on Codex: openai-curated (openai/plugins) (5)
  • Plugin Eval

    Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.

    by OpenAI Codex · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • NVIDIA

    Skills for NVIDIAs ecosystem spans GPU acceleration, CUDA, AI agents, inference, robotics, Physical AI, Omniverse, and simulation. This plugin helps you understand the pieces…

    by NVIDIA · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • OpenAI Developers

    Build with OpenAI APIs, Agents SDK, and ChatGPT Apps, and create and save OpenAI API keys from Codex.

    by OpenAI · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Public Equity Investing

    Public equity investing workflows for listed-company research, earnings analysis, valuation, model updates, long/short pitches, catalysts, thesis tracking, ETF/index and…

    by OpenAI · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Cloudflare

    Cloudflare platform plugin with curated skills for Workers, Wrangler, and Agents SDK plus the official Cloudflare API MCP server.

    by Cloudflare · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

Has a listing on Community GitHub marketplaces (5)
  • llmpvp io.github.EnioAguiar/llmpvp

    Ranked, bring-your-own-LLM chess and Go arena for AI agents. Play rated games via MCP.

    by EnioAguiar · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • decaframe com.decaframe/decaframe

    Presentations, slides, reports and one-pagers your agent designs and you edit. Exports to one file.

    by decaframe.com · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes a similar job

  • iris-eval

    Stop shipping agents on vibes — agent eval for any MCP workflow. Score output quality, catch PII and prompt injection, verify citations, and enforce cost budgets. 12 MCP tools +…

    by Iris · Plugin bundle

    Listed on: Community GitHub marketplaces · Describes a similar job

  • sota-anchor

    Finds what shipped after your coding agent's training, before it rebuilds it from scratch.

    by luckmanqasim · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes a similar job

  • Tuning Engines - Governed AI Runtime

    Govern model, agent, skill, and MCP workflows with policy, approvals, traces, and usage analytics.

    by cerebrixos-org · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes a similar job

Has a listing on Copilot CLI: github/awesome-copilot (5)
  • token-pacman

    Visualizes live session AI-credit usage as a Pac-Man board with pellets, ghosts, fruit milestones, and game-over limits.

    by James Montemagno · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • BLEA

    Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.

    by Nitmi · MCP server

    Listed on: Official MCP Registry, Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • figma

    Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…

    by figma · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • doublecheck

    Three-layer verification pipeline for AI output. Extracts claims, finds sources, and flags hallucination risks so humans can verify before acting.

    by Awesome Copilot Community · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • ai-team-orchestration

    Run a lightweight, role-separated AI development team with flexible tools, developer-selected models, proportionate planning, and optional QA.

    by Denis Evdokimov · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

Has a listing on Copilot CLI: github/copilot-plugins (5)
  • microsoft-365-agents-toolkit

    Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • advanced-security

    Advanced Security plugin for GitHub Copilot.

    by github · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • canvas-apps

    Build Power Apps Canvas Apps using the Canvas Authoring MCP server.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • workiq

    Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • model-apps

    Build and deploy Power Apps generative pages for model-driven apps with specialist agents for planning, entity creation, and parallel code generation. Requires PAC CLI >= 2.7.0…

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

Has a listing on Cursor: cursor/plugins (5)
  • Ralph Loop

    Iterative self-referential AI loops using the Ralph Wiggum technique.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Cursor SDK

    Build apps, scripts, and automations with the TypeScript SDK.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • playwright-mcp io.github.microsoft/playwright-mcp

    Playwright Tools for MCP

    by microsoft · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-official, Cursor: cursor/plugins, Docker MCP Catalog · Describes nearly the same job

  • Tailscale

    Let Grok Bot reach MCP servers on your private Tailscale network. Sign in to Tailscale to connect your tailnet; Grok Bot joins it as one tagged device and only reaches the hosts…

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Orchestrate

    Fan large tasks out across parallel cloud agents with planners, workers, verifiers, and structured handoffs.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

Has a listing on Docker MCP Catalog (5)
  • OpenMesh

    Discover and connect to a curated marketplace of MCP servers for extending AI agent capabilities.

    by docker · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • Kagi Search

    The Official Model Context Protocol (MCP) server for Kagi Search & other tools.

    by kagisearch · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • Opik

    Read and score Opik traces, experiments, datasets and prompts from your AI assistant.

    by comet-ml · MCP server

    Listed on: Official MCP Registry, Docker MCP Catalog · Describes nearly the same job

  • WolframAlpha

    Connect your chat repl to wolfram alpha computational intelligence.

    by SecretiveShell · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • Perplexity

    Connector for Perplexity API, to enable real-time, web-wide research.

    by perplexityai · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

Has a listing on Official MCP Registry (5)
  • Chess UCI

    Analyze chess positions and get best moves from UCI engines such as Stockfish or Leela

    by AnglerfishChess · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Stockfish MCP

    A Stockfish MCP server to allow an LLM to play chess against Stockfish

    by stepbot · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • BetterChess

    Chess MCP for Claude: engine analysis, attack maps, game review. One URL, no install.

    by betterchess.co · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Chess Esca

    Read chess positions by the rules: legality with its evidence, draws, facts, openings, PGN

    by AnglerfishChess · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • AI Chess Arena

    Open chess platform where AI agents register, get matched and play each other. Referee only.

    by PixelJunkie33 · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.

Is this your plugin?

Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.

Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.

Where the data comes from: how the catalog is built