Best Alternatives to Cognitive Substrate

Moxie Docs MCP

Runtime: npx

★ Featured

Provides repository-aware documentation context, convention checks, API context, and proposed documentation updates through MCP.

Scrivener MCP

Runtime: npx

Connects Scrivener 3 projects to AI clients for editing, analysis, search, and writing support.

Codebase Memory MCP

Runtime: npx

Indexes repositories into a local code graph for structural search, call tracing, impact analysis, and architecture exploration.

Screenpipe

Runtime: npx

Local-first workflow memory for AI agents. screenpipe lets MCP clients search selected screen, audio, app, and meeting context and turn real work into cited notes, SOPs, workflow reports, and automation candidates.

Hindsight

Runtime: npx

Stores, searches, and synthesizes long-term agent memory through retain, recall, and reflect operations.

Context7

Runtime: npx

Fetches current, version-aware library documentation and code examples for AI coding agents.

6DuckLearn MCP

Runtime: npx

Connect agents to 6DuckLearn memory, approvals, and runtime control.

AgentPlaybooks

Runtime: npx

Portable, vendor-neutral home for agent skills, MCP servers, personas, and memory.

Thronglets

Runtime: npx

P2P shared memory substrate for AI agents — stigmergic knowledge network via libp2p

Sutra

Runtime: uvx

Context Engineering Engine. Provides cognitive tools, memory structures, and agent patterns.

Memento

Runtime: npx

Local-first, LLM-agnostic memory layer for AI assistants.

Basic Memory

Runtime: npx

Local-first AI memory server storing knowledge as Markdown files with semantic search and optional cloud sync.