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Logic MCP server

by nocturnus.ai·ai.nocturnus/logic-server·v0.3.11·3 stars
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Agent reasoning, memory, and token-optimized context for AI applications.

B71/100grade B
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Safety scan
B71/100

full report

Adoption
Growing

3 stars46 downloads/wk

Reviews

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If you have run it, two minutes of your experience saves the next person an afternoon.

Logic tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • Code scan4 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 44 days ago12/15
  • Maintainer identitynamespace and repository owner differ3/10
Overall 71/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Logic compares

Against every graded AI and agents MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
71/100
higher than 38% of 4,460 AI and agents servers
GitHub stars
3
more than 75% of 2,711 AI and agents servers
Downloads a week
46
more than 38% of 1,538 AI and agents servers with a package

Install Logic in Claude Code, Cursor or VS Code

Runs npx -y nocturnusai-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add logic-server -- npx -y nocturnusai-mcp
Add to Cursor

What the publisher says

From the Logic repository's README, as published. We do not edit it. Read it on GitHub

NocturnusAI

The context engineering engine for AI agents: send only what changed.

Before / After

# ❌ Without NocturnusAI — replay everything, every turn
messages = system_prompt + full_history + tool_outputs   # ~1,259 tokens/turn
response = llm(messages)                                 # $13,600/mo at scale

# ✅ With NocturnusAI — send only what changed
ctx = nocturnus.process_turns(raw_turns)                 # extract → infer → delta
messages = system_prompt + ctx.briefing_delta             # ~221 tokens/turn
response = llm(messages)                                 # $2,400/mo. Same accuracy.

The Numbers

Measured on live APIs. 15-turn product support conversation. Real usage.input_tokens counts. Run it yourself.

Claude Opus 4: 5.7× reduction. Gemini 2.0 Flash: 10.0×. Full calculations.

Install

pip install nocturnusai          # Python
npm install nocturnusai-sdk      # TypeScript
docker run -p 9300:9300 ghcr.io/auctalis/nocturnusai:latest  # Docker

Or use the setup wizard:

curl -fsSL https://raw.githubusercontent.com/Auctalis/nocturnusai/main/install.sh | bash

Why Developers Star This Repo

  • Reproducible token reduction — benchmark in the repo, methodology published, run it against your own workload
  • Deterministic inference — same query, same result, every time. No embedding drift, no cosine similarity lottery
  • Truth maintenance — retract a fact, all derived conclusions auto-retract. No stale context, no hallucination on operational state
  • Plugs into existing stacks — LangChain, LlamaIndex, CrewAI, AutoGen, MCP, Vercel AI SDK, OpenAI Agents SDK, Mastra
  • Benchmarkable against naive replay — numbers derived, not invented. Every claim traces to a notebook cell

Framework Quickstarts

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Logic: common questions

Is Logic MCP server safe?
Mostly: it is graded B (71/100). Read the Logic safety report
How do I install Logic?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Logic need an API key?
Yes. The registry entry asks for NOCTURNUSAI_API_KEY.
Is Logic maintained?
The last commit was 82 days ago (2026-08-14). The latest release is v0.3.11.
What can I use instead of Logic?
Servers from other publishers that do the same job: Agent Lsp MCP server, Basic Memory MCP server and Commonly MCP server.
How does Logic compare with other AI and agents MCP servers?
safety score 71/100 (higher than 38% of 4,460 AI and agents servers); github stars 3 (more than 75% of 2,711 AI and agents servers); downloads a week 46 (more than 38% of 1,538 AI and agents servers with a package). Full comparison.

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