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In-memory code knowledge graph and MCP server for AI agents
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PigeonGraph stops coding agents from wasting 20+ turns on grep loops. It builds an in-memory knowledge graph locally with Node 24 SQLite WAL, connecting AST symbols and dynamic runtime routes for Claude, Cursor, and Gemini in a single turn. 100% local, MIT licensed
PH · launched Sep 13, 2026 · 1 upvote (top 69%) · 0 views
Niche: ai agent memory infrastructure · 350 launches, 11 in the last 7 days ▼ -58% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- AI feature
- Hobby / open-source project
- Developer Tools
- GitHub
- Tech
Visit website ↗ Source listing ↗
More like this: all 350 launches in ai agent memory infrastructure →
Could you build this?
Partial Building an MCP server is straightforward, but parsing multi-language ASTs, building incremental in-memory code knowledge graphs, and tracing dynamic routes accurately require non-trivial compiler and static analysis expertise.
What it would actually take: The architecture relies on Node.js/TypeScript using Tree-sitter or TypeScript Compiler APIs, SQLite in WAL mode for persistent graph caching, and Model Context Protocol (MCP) server endpoints. The hard part is building robust cross-language call graphs, resolving symbols across dynamic imports and framework-specific routing conventions, and maintaining sub-second query performance without memory bloat. This demands specialized knowledge of AST parsing, static analysis, and graph database optimization.
Competitors
Other products that read as similar to this one : 703 launches clear the similarity bar, closest 8 shown.
Attention rank: #513 of 704 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 313 days after the earliest competitor.
- Novgraph · ph · 2026-09-14 · 1 upvotes · similarity 0.50
- ContextPool · ph · 2026-04-13 · 179 upvotes · similarity 0.49
- komplyt-zero · github · 2026-10-13 · 14 upvotes · similarity 0.49
- PMB · hn · 2026-06-29 · 26 upvotes · similarity 0.49
- CodeGraph MCP · ph · 2026-10-05 · 2 upvotes · similarity 0.48
- Synapse · ph · 2026-11-06 · 1 upvotes · similarity 0.48
- KYB - Shared Memory for AI Agents · ph · 2026-10-13 · 2 upvotes · similarity 0.47
- Engraphis · ph · 2026-11-03 · 2 upvotes · similarity 0.46
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