headroom logo
headroom
★ 77.5k
vs
locus logo
locus
★ 15

headroom vs locus

headroom: Headroom compresses everything your AI agent reads — tool outputs, logs, RAG chunks, files, and conversation history — before it reaches the LLM. It achieves the same answers with a fraction of the tokens.; locus: Locus provides persistent project-aware memory for AI coding tools, using three memory layers: structural, semantic, and episodic. It works with any MCP-compatible client and offers 14 tools and 3 resources for exploring, searching, and managing memory. Carbon Copy enables passive conversation capture for later recall.

01

TL;DR

headroom logo
headroomMemory & Context · ★ 77.5k
When to choose:
  • Long tool output, logs, JSON responses or RAG chunks are driving up cost or hurting answers.
  • You want compression without code changes: run it as a local proxy, an MCP server, or by wrapping Claude Code, Codex or Cursor.
  • Compression must run locally, with originals cached so the model can retrieve the full text.
When to skip:
  • Your agent's problem is missing or outdated docs, not too much context: a docs server fits better.
  • You cannot add a component that must keep running and may add latency.
  • Your tasks cannot tolerate lossy compression: verify answer quality on your own work first.
locus logo
locusMemory & Context · ★ 15

Maintain project context across AI coding sessions to avoid losing architectural decisions and file structure awareness

02

Side-by-Side Comparison

Field
headroom logoheadroom
locus logolocus
Category
Memory & Context
Memory & Context
Stars
★ 77.5k
★ 15
License
Apache-2.0
MIT
Install Command
pip install "headroom-ai[all]"
npx -y locus-memory@latest install codex
Updated
1d ago
4mo ago
Open Source
Yes
Yes
Tags
Context Compression, Token Optimization, AI Agents
ai-memory, claude-code, codex-cli
03

Features

headroom logoheadroom
01In-app library for compression (Python/TypeScript)
02Zero-code-change proxy mode
03One-command agent wrapping for various AI agents
04Cross-agent shared memory and auto-deduplication
05Reversible compression (CCR) with original content retrieval
locus logolocus
01Three memory layers: structural (auto-parsed), semantic (user-curated), episodic (auto-captured)
02Carbon Copy passive conversation capture via inbox-based event protocol
0314 MCP tools for exploring, recalling, searching, remembering, and managing memory
04FTS5 full-text search across all memory layers and conversation events
054-layer security: metadata-only, file denylist, content redaction, audit UX
04

Use Cases

headroom logoheadroom
↳Reduce LLM token usage and API costs for AI agents.
↳Enable shared context and memory across multiple AI agents.
↳Optimize coding agents by compressing tool outputs, logs, and RAG chunks.
↳Maintain full data fidelity with reversible context compression.
locus logolocus
↳Maintain project context across AI coding sessions to avoid losing architectural decisions and file structure awareness
↳Store and retrieve important decisions and their rationale for consistent development practices
↳Passively capture conversation history from coding sessions for later search and recall
05

Best For

headroom logoheadroom
Most PopularEssential
locus logolocus
—
FAQ

FAQ

What is the difference between headroom and locus?
Both headroom and locus are in the Memory & Context category. headroom has 77.5k stars, while locus has 15 stars.
Which is better, headroom or locus?
The best choice depends on your use case. Choose headroom if Reduce LLM token usage and API costs for AI agents., and locus if Maintain project context across AI coding sessions to avoid losing architectural decisions and file structure awareness.
Is headroom free or open source?
Yes, headroom is open source on GitHub (Apache-2.0).
Is locus free or open source?
Yes, locus is open source on GitHub (MIT).
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