Comparison

engram vs Persistent Project Context for xAI Grok

engram is no longer listed on any marketplace we read: these are its last known data, as of 2026‑11‑05.

engram is a plugin bundle for AI coding tools published by Engram Memory Labs. No marketplace we read lists it any more. Persistent Project Context for xAI Grok is an MCP server published by Wolfe-Jam. Marketplaces we read that list it: 2 (Official MCP Registry, npm registry (MCP servers)). As of our marketplace pass on 2026-11-08. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.

Where each is published

Where each is published
Marketplace	engram	Persistent Project Context for xAI Grok
Community marketplace engrammemory-labs/engram-lite	Removed on 2026-11-05 Version: 0.1.0 Forks (GitHub): 10 Stars (GitHub): 28 Not marked · First seen 2026-10-17	Not listed
Official MCP Registry	Not listed	Listed, marked deprecated Version: 1.8.1 Downloads/month (npm): 2 174 Downloads/week (npm): 1 257 Forks (GitHub): 2 Stars (GitHub): 19 Not marked · First seen 2026-10-11
npm registry (MCP servers)	Not listed	Listed Version: 2.2.4 Downloads/month (npm): 2 174 Downloads/week (npm): 1 257 Forks (GitHub): 2 Stars (GitHub): 19 Not marked · First seen 2026-10-12

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

The facts side by side

engram vs Persistent Project Context for xAI Grok
Fact	engramno longer listed · 2026-11-05	Persistent Project Context for xAI Grok
Marketplaces that list it (differs)	0	2
Stars (GitHub) (differs)	28	19
Forks (GitHub) (differs)	10	2
Last release (differs)	Not published	2026-11-06
Where it runs (differs)	Installs as a plugin bundle	Remote server or your machine
Transport (differs)	Not stated	Streamable HTTP, stdio
Tools it declares	Not published	Not published
Environment variables it asks for	Not published	Not published
Hooks it runs (differs)	3	Not published
Parts of the bundle (differs)	3	Not a bundle
Licence (differs)	Not stated	MIT
Repository (differs)	github.com/engrammemory-labs/engram-lite	github.com/wolfe-jam/grok-faf-mcp
Changes in the last 7 days (differs)	2	3
First seen (differs)	2026-10-17	2026-10-11
Endpoint at the last check (differs)	no remote endpoint we check	Responded 11 h ago

Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.

What to use instead of engram

Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.

engram io.github.tstockham96/engram

Intelligent agent memory with automatic extraction, consolidation, and bi-temporal recall.

by tstockham96 · MCP server

Listed on: Official MCP Registry, Claude Code: claude-plugins-community · Describes nearly the same job
ember-memory

Persistent semantic memory for Claude Code. Stores knowledge in a local ChromaDB vector database and automatically retrieves relevant context on every message using Ollama bge-m3…

by KindledFlameStudios · Plugin bundle

Listed on: Claude Code: claude-plugins-community · Describes nearly the same job
engram

Persistent memory with session tracking, compaction recovery, and Memory Protocol. Gives Claude a brain that survives across sessions.

by Gentleman Programming · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job
iai-pme — personal memory engine

Persistent local memory for your assistant: every turn captured verbatim, relevant memory injected at session start and before each turn, and fifteen memory tools over MCP…

by Areg Aramovich Noya · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job
Memory

Active memory writing during conversation, plus manual /memory:consolidate with theme clustering, ground-truth prune, adversarial pass, and machine validator — no…

by Frad LEE · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job
cortex

Persistent local memory for Claude Code. Longer sessions, cross-session recall, zero cloud.

by Tomas Krajcik · Plugin bundle

Listed on: Community GitHub marketplaces · Describes nearly the same job

Its card, with similar plugins by marketplace

What each says it does

engram

In its own words, on Community GitHub marketplaces:

Deterministic long-term memory: every prompt captured, role-scoped memories served each turn, memory that survives /clear and compaction. Local only.

Persistent Project Context for xAI Grok

In its own words, on Official MCP Registry:

Persistent project context for xAI Grok. IANA-registered .faf format.

How to run each

engram

No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.

Persistent Project Context for xAI Grok As a remote MCP server

Claude Code

claude mcp add --transport http grok-faf-mcp https://mcpaas.live/grok/mcp/v1

Commands built only from what the marketplaces declare; the full set for every client is on each card.

Only Persistent Project Context for xAI Grok has a remote endpoint we check. How we check endpoints

Tools each declares

Neither one's marketplaces publish a list of tools, so there is nothing to compare.

Settings each asks for

Neither one's marketplaces publish the settings it asks for.

What it can do: engram · What it can do: Persistent Project Context for xAI Grok · Compare two other plugins

Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Package data comes from the public npm registry (registry.npmjs.org). Figures come from our own regular passes over the marketplaces, last read on 2026-11-08. We publish no contact details for plugin publishers.