semble
★ 4.6k
vs
mdma
★ 13
semble vs mdma
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.; mdma: MDMA extends Markdown with interactive components like forms, buttons, tables, and approval gates, allowing AI conversations to become actionable. It provides deterministic parsing, PII protection, and an audit trail. The tool includes a parser, runtime, React renderer, prompt pack for AI authoring, and a validator.
01
TL;DR
Choose semble if…Enhancing AI agents (e.g., Claude Code, Cursor, Codex) with fast and accurate code search capabilities
Choose mdma if…AI assistants generating structured forms and tables for data collection
02
Side-by-Side Comparison
03
Features
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
mdma01Interactive components: form, button, table, chart, callout, approval-gate, etc.
02AI authoring with model-optimized system prompts
03Built-in PII detection, redaction, and tamper-evident audit log
04Deterministic parsing from Markdown + YAML with validation and auto-fix
05React rendering library with custom component override support
04
Use Cases
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
mdma↳AI assistants generating structured forms and tables for data collection
↳Building interactive document UIs for customer intake, bug reports, or approval workflows
↳LLM-generated dynamic interfaces with predictable schema and validation
05
Best For
sembleCode AssistantRAG / Knowledge Base
mdmaTrendingRAG / Knowledge BaseAPI Integration
FAQ
FAQ
What is the difference between semble and mdma?
Both semble and mdma are in the RAG / Knowledge Base category. semble has 4.6k stars, while mdma has 13 stars.
Which is better, semble or mdma?
The best choice depends on your use case. Choose semble if Enhancing AI agents (e.g., Claude Code, Cursor, Codex) with fast and accurate code search capabilities, and mdma if AI assistants generating structured forms and tables for data collection.
Is semble free or open source?
Yes, semble is open source on GitHub (MIT).
Is mdma free or open source?
Yes, mdma is open source on GitHub (MIT).
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