STS2MCP
★ 377
vs
semble
★ 4.5k
STS2MCP vs semble
STS2MCP: STS2MCP is an experimental research mod for Slay the Spire 2 that enables AI agents to play the game. It exposes game state and actions via a localhost REST API, with an optional MCP server for Claude Desktop/Claude Code integration. It supports both singleplayer and multiplayer co-op, and has been tested against STS2 v0.99.1.; semble: Semble is a high-performance code search library designed for AI agents, providing instant access to precise code snippets. It offers significantly faster indexing and querying compared to transformer models, achieving 99% of their retrieval quality while running entirely on CPU without external dependencies.
01
TL;DR
Choose STS2MCP if…AI agents autonomously playing Slay the Spire 2
Choose semble if…Enhancing AI agents (e.g., Claude Code, Cursor, Codex) with fast and accurate code search capabilities
02
Side-by-Side Comparison
03
Features
STS2MCP01Exposes game state and actions via a localhost REST API
02Optional MCP server for Claude Desktop / Claude Code integration
03Supports singleplayer and multiplayer (co-op)
04Automatically starts HTTP server on localhost:15526
05Allows AI agents to fully automate game runs
semble01Fast performance on CPU (indexes in ~250ms, queries in ~1.5ms)
02High accuracy (NDCG@10 of 0.854), comparable to transformer models
03Supports indexing local paths and remote Git repositories
04Functions as an MCP server for various AI agents
05Zero setup, no API keys, GPU, or external services required
04
Use Cases
STS2MCP↳AI agents autonomously playing Slay the Spire 2
↳Collaborative human-AI co-op runs
↳Benchmarking AI reasoning and decision-making capabilities
semble↳Enhancing AI agents (e.g., Claude Code, Cursor, Codex) with fast and accurate code search capabilities
↳Searching local or remote codebases for specific code snippets based on natural language or code queries
↳Finding semantically similar code sections related to a given file path and line number
05
Best For
STS2MCPHidden GemDev Tooling
sembleCode AssistantRAG / Knowledge Base
FAQ
FAQ
What is the difference between STS2MCP and semble?
Both STS2MCP and semble are in the Dev Tooling category. STS2MCP has 377 stars, while semble has 4.5k stars.
Which is better, STS2MCP or semble?
The best choice depends on your use case. Choose STS2MCP if AI agents autonomously playing Slay the Spire 2, and semble if Enhancing AI agents (e.g., Claude Code, Cursor, Codex) with fast and accurate code search capabilities.
Is STS2MCP free or open source?
Yes, STS2MCP is open source on GitHub (MIT).
Is semble free or open source?
Yes, semble is open source on GitHub (MIT).
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