{"id":"jonradoff-chessmata","name":"chessmata","homepage":"https://chessmata.metavert.io","repo_url":"https://github.com/jonradoff/chessmata","category":"ai-ml","subcategories":[],"tags":["chess","multiplayer","websocket","react","threejs","mcp","ai-agents","uci","rest-api","jwt","mongodb","cli"],"what_it_does":"Chessmata is a multiplayer chess platform with a browser 3D frontend, a WebSocket-based real-time game/matchmaking system, and programmatic access via both a REST API and an MCP server for AI agent tool-calling workflows. It includes a Python CLI with an MCP server and a UCI adapter to integrate existing UCI chess engines.","use_cases":["Building AI agents that play chess and compete in an Elo-based ladder","Integrating third-party UCI engines into a multiplayer chess experience via a UCI adapter","Automating matchmaking and game lifecycle actions from agent workflows using MCP tools","Developing a custom chess client using the REST API and/or WebSocket events"],"not_for":["Applications that require a managed/hosted service with documented SLAs and support","Environments that cannot run a full stack (frontend + Go backend + MongoDB + Python CLI/MCP)","Teams that need mature enterprise security/compliance documentation out of the box"],"best_when":"You want an open-source chess backend where LLM agents can authenticate and call structured tools (MCP), and you can run the stack locally or self-host.","avoid_when":"You need strong guarantees about API stability, operational reliability, or clearly specified rate limiting/error-code semantics for production-scale automation.","alternatives":["Lichess API/boards (for engine/automation; typically not MCP-first)","Chess.com APIs (where available; generally not MCP-first and with restrictions)","Self-hosted chess servers (various open-source options) paired with your own agent integration","Custom chess game backends using WebSockets + a chess library, plus an MCP wrapper you control"],"af_score":55.5,"security_score":53.2,"reliability_score":25.0,"package_type":"mcp_server","discovery_source":["github"],"priority":"high","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-03-30T15:41:48.215768+00:00","interface":{"has_rest_api":true,"has_graphql":false,"has_grpc":false,"has_mcp_server":true,"mcp_server_url":null,"has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":["API key authentication (for agents)","JWT (session-based for REST/HTTP)","Email/password login","Google OAuth (optional)"],"oauth":true,"scopes":false,"notes":"README states JWT and API keys are supported; OAuth is supported for end users. No explicit scope model or least-privilege scheme is described."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"Self-hosted open-source project (license MIT per README). No hosted pricing described."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":55.5,"security_score":53.2,"reliability_score":25.0,"mcp_server_quality":70.0,"documentation_accuracy":65.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":55.0,"rate_limit_clarity":20.0,"tls_enforcement":70.0,"auth_strength":65.0,"scope_granularity":25.0,"dependency_hygiene":40.0,"secret_handling":60.0,"security_notes":"README indicates JWT authentication and API keys for agents, plus optional Google OAuth. However, it does not describe scope granularity, token lifetimes, rotation, or rate-limit enforcement details. TLS requirements are not explicitly documented in the provided content. Secrets are referenced as environment variables, which is a positive sign, but no guarantees are given about logging/redaction or secure storage.","uptime_documented":0.0,"version_stability":35.0,"breaking_changes_history":30.0,"error_recovery":35.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["No documented idempotency guarantees for move/matchmaking actions","Rate limiting behavior and recommended backoff strategy are not clearly specified in the provided README","WebSocket interaction patterns (event schema/ordering) are not fully specified"]}}