Skip to main content
Glama
grooverLab

fable MCP server

by grooverLab

fable Recall

Your Claude already has a memory. fable unlocks it.

Quickstart · Why fable · Benchmarks · Roadmap · Discussions

MIT stdlib only tests local first

Every conversation you've ever had with Claude Code is already saved on your machine — every decision, every debugging hunt, every 2 AM breakthrough, word for word. Claude just isn't allowed to use it.

Mid-session, compaction builds a wall: everything behind it is locked away to save tokens, and Claude carries on with a thin summary. /clear wipes the slate. And after 30 days, Claude Code quietly deletes the files themselves. Your project's real memory — locked, then destroyed, by design.

Everyone else sells you a replacement memory: summaries, extracted facts, vector stores. fable does something different — it unlocks the real one.

fable demo

pipx install git+https://github.com/grooverLab/fable
fable install       # one command: register the MCP, install hooks, index your history
fable serve         # browse your memory in a dashboard

100% local · no API keys · no cloud · no daemons. Your conversations never leave your machine.

pipx install git+https://github.com/grooverLab/fable   # install the CLI
fable install        # one-shot: claude mcp add + Claude Code hooks +
                     # ~/.fable home + index every transcript
fable serve          # dashboard at http://127.0.0.1:8765
pipx upgrade fable-recall   # update later (pulls latest from GitHub)

fable install is idempotent — safe to re-run; it skips anything already wired. To do it by hand: fable setup (home) · claude mcp add fable -- fable mcp (MCP) · fable discover (index).

command

what it does

fable search <q>

rank threads by relevance (--project, --kind, -n)

fable context <q>

assemble a budgeted context pack

fable thread <id>

a thread's raw turns, byte-identical

fable file <path>

a file's full edit history across sessions

fable cards run

generate AI summary cards (background)

fable discover

(re)scan + index all Claude Code projects

fable prune · fable export · fable stats

slim a session · export · index stats

fable serve

the dashboard

  • Ask about past conversations with Claude — get the real answer. "What did we decide about auth last month?" Claude searches its own history mid-session (via MCP) and quotes the actual transcript — not a summary, not an extracted "fact." The conversation itself.

  • The wall stops costing you. fable catalogs everything before compaction walls it off, and hands back exactly what Claude lost — on demand, under a token budget you set.

  • The 30-day deletion becomes irrelevant. Sealed into a local vault, byte-identical, for as long as you decide.

Related MCP server: acheron-mcp-server

First of its kind — five things no other tool does

🧵 Composed Sessions. Hand-pick conversations from any project, any month — put them in your order — and fable builds a brand-new session that Claude resumes as its own lived history. A workspace with curated memory. (Empirically verified: restitched sessions resume cleanly, signatures intact.)

🕰️ File time-travel. Your transcripts accidentally versioned everything. fable reconstructs every file's edit history — every Edit and Write Claude ever made, across every session — with side-by-side comparison between any two moments of a file's life, and a jump back to the conversation that made each change. (fable file src/loader.py)

✂️ Transcript Surgery. Your 80 MB session is paying rent on dead threads. Remove whole conversations — fable re-stitches the timeline, shows you the simulation first, and keeps every removed byte recallable forever. Reversible by construction.

🪶 Pruning that loses nothing. Slim every message (tool noise, images, bloat) before resuming a heavy session — with an itemized preview of the savings, and the original sealed in the vault first.

🔍 Memory Diff. See exactly what any prune or cleanup cost any conversation — generation by generation, byte by byte. Nobody else can even show you what was lost.

🔇 Run cold. Mute recall for a session or a fleet of sub-agents and they work with no prior context at all - no injected memory, no recall tools - while capture keeps running, so the muted work is still recorded verbatim and searchable the moment you lift it. The point is an unbiased second opinion: an audit that cannot be anchored to yesterday's conclusion. (fable mute on · FABLE_MUTE=1 claude · a toggle in Settings)

How it works (the short version)

fable indexes your transcripts into a local SQLite archive: an immutable vault (every byte, forever) plus a search map (keyword + semantic, optional local embeddings via Ollama). Hooks run before Claude Code's compaction and cleanup; an MCP server gives Claude search / recall / remember tools. Measured on a real archive — 191,000 records, 6,000 conversations:

recall@1

recall@5

search (p50)

full re-index

76.7%

90.0%

135 ms

6.6 s

Reproduce it: python3 scripts/benchmark.py. No competitor publishes retrieval numbers.

Why fable — and not another memory layer

fable

claude-mem

mem0 / Letta

native Claude Code

Memory = your actual conversations

❌ summaries

❌ fact snippets

⚠️ locked behind the wall

Survives the 30-day deletion & /clear

⚠️ its summaries do

Claude searches its own history (MCP)

Composed sessions / file time-travel / surgery / diff

✅ first of its kind

Zero API keys, fully offline

Footprint

one SQLite file

Node + Chroma daemon

cloud / Docker

(Fair is fair: mem0 fits multi-LLM production agents; ccusage goes deeper on billing analytics. Different jobs, both compatible with fable.)

Trusted the hard way

fable's first user is the session that built it: mid-build, that session was pruned by fable (7.8 MB → 3.0 MB), kept working through compaction via its own hook, and is now searchable through its own MCP server — and fable file fable/recall.py replays its own source code being written, 18 versions deep. The build history eats its own dogfood — all $83k of API-equivalent work in the author's archive included.

What people use it for

  • "Why did we choose X?" — architecture archaeology, weeks later

  • "When did this function break?" — file time-travel to the exact edit and the conversation around it

  • Picking up a debugging hunt exactly where the wall cut it off

  • A composed "workspace" session: threads from three projects, one memory

  • Slimming a heavy session before --resume, reversibly

  • fable remember "we deploy Fridays only" — standing rules, every session

Try it on a fictional sample first: python3 demo/seed_demo.py && fable --db demo/demo.db serve


MIT · local-first forever (non-goals) · built with Claude Code, for Claude Code · @claude answers issues here — the butler is Claude · architecture deep-dive · Star History Chart

Install Server
A
license - permissive license
A
quality
B
maintenance

Maintenance

Maintainers
3hResponse time
Release cycle
Releases (12mo)
Commit activity

Resources

Unclaimed servers have limited discoverability.

Looking for Admin?

If you are the server author, to access and configure the admin panel.

Related MCP Servers

  • -
    license
    -
    quality
    -
    maintenance
    Enables comprehensive search and analysis of Claude Code conversation history using full-text search, optional semantic vector search, and conversation management tools. Provides fast SQLite-based indexing with role-based filtering, project organization, and hybrid search capabilities combining keyword and semantic matching.
    Last updated
  • A
    license
    A
    quality
    D
    maintenance
    Enables Claude to remember conversations and learn over time by storing and recalling messages, memory abstracts, and recent history using a local SQLite database.
    Last updated
    4
    47
    72
    MIT
  • A
    license
    -
    quality
    D
    maintenance
    Provides persistent, searchable memory for Claude Code using local SQLite, semantic embeddings, and full-text search, enabling Claude to recall and retrieve context across sessions and projects without external services.
    Last updated
    16
    3
    MIT

View all related MCP servers

Related MCP Connectors

  • Persistent context for Claude. Your AI always knows your projects and next actions across sessions.

  • Search and reason over your Obsidian-style Markdown vault, right from ChatGPT.

  • Connect your team's living knowledge base — docs, data, issues, CRM — to Claude and ChatGPT.

View all MCP Connectors

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/grooverLab/fable'

If you have feedback or need assistance with the MCP directory API, please join our Discord server