MCP server Kompl

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Save anything (a link, a PDF, a thread, a YouTube video, a bookmark export) and Kompl reads it as it arrives, pulls out the people, ideas and arguments inside, and writes them into wiki pages that link to each other. Save more on the same topic and the existing pages update. Save a tenth and Kompl already sees the pattern across all ten without you having to ask.

• Compiles at save time, not at question time. Source #50 doesn't just become page #51: it rewrites the pages it touches, so the wiki never needs upkeep.
• Grows its own structure. Entities and concepts that keep showing up get their own pages, and a topic map shows how they connect, each connection with the sentence that states it.
• Says when sources disagree. A page records a disputed claim with both sides cited, and a claim that a newer source changed with its dates. You confirm or dismiss each finding.
• Shows its sources. Claims carry numbered citations that link to the sources each page was built from, so you can check any sentence.
• Answers through the agent you already use. Claude Code, Claude Desktop, Cursor or any MCP client reads the compiled pages through Kompl's MCP server.
• Runs on your machine, with your keys. One Docker stack, a CLI, and your own DeepSeek or Gemini key. No accounts, no telemetry.

▶ Watch the 1-minute demo: Kompl, an open source LLM-wiki your AI agent can read

Dashboard	Compiled wiki page
Topic map	Settings: model, spend cap and MCP

How it works

flowchart LR
    A["Save a source<br/>URL · file · thread · video · bookmarks"] --> B["Local NLP<br/>entities · keyphrases · TF-IDF"]
    B --> C["One LLM call<br/>extracts entities, claims, contradictions"]
    C --> D["Entity resolution<br/>alias → fuzzy → embeddings → LLM"]
    D --> E["Page plan<br/>ranked by TF-IDF, confirmed by triage"]
    E --> F["LLM drafts and rewrites pages<br/>with citations"]
    F --> X["Claim check<br/>disputed · changed"]
    X --> G[("Your wiki")]
    G --> H["Your AI agent<br/>via MCP"]

Local work comes first on purpose: an LLM shouldn't be paid to do a librarian's job. The model's real job is writing, drafting or rewriting each affected page with the new source woven in. Details are in Under the hood.

Quick start

You need Docker (Desktop on Windows/macOS, Engine + Compose v2 on Linux) running, Node.js 24+, about 5 GB disk and 4 GB free RAM, and the API keys below.

macOS / Linux / WSL / Git Bash

curl -fsSL https://raw.githubusercontent.com/tuirk/Kompl/main/install.sh | bash

Windows (PowerShell)

irm https://raw.githubusercontent.com/tuirk/Kompl/main/install.ps1 | iex

The installer checks Docker, Node 24, disk and RAM, clones the repo and hands off to setup.js, which asks for your keys, writes .env (gitignored, along with your detected timezone as KOMPL_TIMEZONE), installs the kompl CLI and starts the stack. If anything is missing it stops with a copy-paste fix. Prefer to read the script first? Download it with curl -fsSLO (or iwr -OutFile), then run bash install.sh (or .\install.ps1).

git clone https://github.com/tuirk/Kompl.git kompl
cd kompl
node setup.js

The first start takes 5–10 minutes while Docker builds the images (~2 GB) and downloads the local embedding model. Later starts take about 15 seconds.

kompl status     # wait until the app reports healthy
kompl open       # or visit http://localhost:3000

The onboarding wizard walks you through your first sources: paste a URL, drop a PDF, or import a bookmark or Twitter export.

1. Choose your sources	2. Review before compiling	3. Watch it compile

API keys

Firecrawl and at least one compile provider (DeepSeek or Gemini) are required; YouTube is optional. Pick or change the compile model any time in Settings → AI model & spend.

Key	Needed for	Get it	Notes
Firecrawl	URL scraping. Required.	firecrawl.dev	Free tier (500 scrapes/month) covers normal personal use.
DeepSeek	Compilation (one of two*)	api-docs.deepseek.com	Default for new installs: DeepSeek V4.1 Flash. V4 Pro is also selectable and was validated on long academic sources (~200K characters). Pay-as-you-go.
Gemini	Compilation (one of two*)	aistudio.google.com/apikey	Gemini 3.8 Flash, 3.5 Flash-Lite and 3.1 Pro (preview). Gemini 2.5 still works, but Google only serves it to API projects that used it before. Paid Tier 1 is strongly recommended: free-tier rate limits throttle a normal ingest.
YouTube Data API v3	YouTube metadata. Optional.	console.cloud.google.com	10,000 units/day free (1 unit per video). Captions use youtube-transcript-api (no key). Without this key, YouTube URLs land on Saved Links (youtube_metadata_unavailable) instead of being compiled. Restrict the key to YouTube Data API v3.

*At least one of DeepSeek or Gemini. If you only set a Gemini key, choose a Gemini model in Settings before your first compile.

Installs from before DeepSeek became the default keep the model they were already using; nothing switches providers on update.

Ask your wiki from your AI (MCP)

Kompl has no built-in chat. Your agent asks the questions and Kompl serves the compiled pages, with provenance back to the originals instead of raw chunks. Settings → Connect your AI has the same steps.

Build. Setup and kompl update build the MCP server for you, and kompl start rebuilds it when its build is older than its source. To build it by hand: cd mcp-server && npm ci && npm run build. Restart your agent after an update to load the new tools.

Connect your agent. The server is a local process that your agent starts: node <KOMPL_INSTALL_PATH>/mcp-server/dist/index.js, with <KOMPL_INSTALL_PATH> replaced by the absolute path to your Kompl folder. It talks to Kompl at KOMPL_URL (default http://localhost:3000).

Agent	Setup
Claude Code	claude mcp add --scope user kompl-wiki -- node <KOMPL_INSTALL_PATH>/mcp-server/dist/index.js
Codex (CLI, IDE extension, ChatGPT desktop app)	codex mcp add kompl-wiki -- node <KOMPL_INSTALL_PATH>/mcp-server/dist/index.js
Claude Desktop, Cursor, Gemini CLI	the block below in claude_desktop_config.json, ~/.cursor/mcp.json or ~/.gemini/settings.json
Pi	the block below in ~/.pi/agent/mcp.json, read by the pi-mcp-adapter extension
VS Code	the block below in .vscode/mcp.json, with "servers" in place of "mcpServers"
Hermes Agent	under mcp_servers: in ~/.hermes/config.yaml: kompl-wiki: { command: node, args: ["<KOMPL_INSTALL_PATH>/mcp-server/dist/index.js"] }

{
  "mcpServers": {
    "kompl-wiki": {
      "type": "stdio",
      "command": "node",
      "args": ["<KOMPL_INSTALL_PATH>/mcp-server/dist/index.js"],
      "env": { "KOMPL_URL": "http://localhost:3000" }
    }
  }
}

Pi and Hermes run tools without asking you first. If you turn on Let AI agents add sources, they can add sources and start compiles (which count toward your daily spend cap) on their own. Leave it off unless you're comfortable with that.

Tools. All but add_source only read. Kompl must be running (kompl start) for them to answer.

Tool	What it does
search_wiki	Finds pages by keywords and meaning; without a query, lists pages newest first
research_topic	One-call brief on a topic: key pages, their cited lines, how they connect, one source list numbered across them, disputes, gaps
read_page	A page with [n] citations, its numbered sources (address and date), how it connects to other pages (each relation with its source), and the disagreements recorded on it
read_source	The original text behind a source or a page's citation [n], or just the passages that match a query
list_sources	What you've added, searchable by title or address
recent_changes	What changed since a date, in one compile, or on one page (with the sections that changed)
wiki_status	Size, a running compile, what waits for you, gaps worth filling, topic clusters and bridge pages
add_source	Saves links (up to 5 at a time) or a note and compiles them. Off until you turn it on in Settings → Connect your AI; at most 20 a day

Not using MCP? The same data is on plain HTTP: /api/pages/search?mode=hybrid, /api/wiki/research, /api/wiki/{page_id}/data, /api/sources, /api/sources/{id}/content, /api/wiki/changes, /api/wiki/status and /api/wiki/index.

⚠ Single-tenant. There is no multi-user auth. Don't expose your instance to the internet without putting your own auth in front of it. Kompl answers only to localhost, IP addresses and its own service names (app, nlp-service, n8n), and refuses any change a page on another site asks for. If your proxy serves Kompl under its own host name, or an agent in a container reaches it as host.docker.internal, list that name in KOMPL_ALLOWED_HOSTS in .env, or every request to it gets 403 unknown_host.

Everyday use

Command	What it does
kompl start	Start Kompl (also saves a local backup if the last one is more than 36 hours old)
kompl stop / kompl restart	Stop, or stop and start
kompl open	Open the app in your browser
kompl status	Health check: app, database, NLP service, vector index
kompl logs	Stream service logs
kompl update	Pull the latest source, rebuild images and restart (~5–10 min)
kompl backup	Save a full backup to ~/.kompl/backups/kompl-backup.kompl.zip
kompl init	Re-run the first-time setup wizard (rarely needed)

If something looks stuck, start with kompl status and kompl logs. The usual first-run causes are Docker not running, port 3000 already in use, or the first image build still downloading.

Updating

kompl backup     # optional, recommended before major upgrades
kompl update

What changed in each release: CHANGELOG.md.

kompl update pulls the source, refreshes the CLI, pulls registry images, rebuilds app and nlp-service and waits for /api/health. Your wiki is safe on a normal update: pages live on the Docker volume kompl-data, which rebuilds don't touch. kompl start and kompl restart only restart existing images; they don't rebuild after a git pull, so new UI won't appear until you run kompl update.

cd <projectDir>    # path in ~/.kompl/config.json
git pull --ff-only
cd cli && npm install && npm link    # npm install also builds the CLI
cd ..
docker compose pull
docker compose up --build -d

⚠ Never run docker compose down -v unless you mean to delete everything: -v removes the volumes. bash scripts/integration-test.sh is destructive too.

Backup and restore

Settings → Backup & restore → Kompl Backup downloads a .kompl.zip with your entire wiki: sources, compiled pages, provenance, extractions and settings. API keys and third-party secrets are excluded, and restoring needs no LLM calls.

To restore on a fresh instance, run setup, skip onboarding, then upload the .kompl.zip under Settings → Backup & restore → Import wiki. Pages are browsable and searchable immediately; the search index rebuilds in the background. Backups from older Kompl versions import too.

kompl start also saves a local backup to ~/.kompl/backups/kompl-backup.kompl.zip at most once every 36 hours.

kompl backup                                        # save to ~/.kompl/backups/ (overwrites)
kompl backup --output ~/Desktop/my-wiki.kompl.zip   # save to a custom path
kompl backup --schedule                             # weekly backup, Monday 11:30

--schedule is idempotent. Windows registers a Task Scheduler entry (needs Admin; runs at next login if the machine was off). Linux and macOS add a crontab entry (30 11 * * 1 kompl backup); cron does not catch up if the machine was off. Tested on Windows and Linux only — please open an issue if you hit anything on macOS.

Your data

Your wiki lives in Docker volumes on your machine. Outbound calls fall into three groups.

Calls you trigger, which send content to a third party:

• DeepSeek (api.deepseek.com) or Gemini (generativelanguage.googleapis.com): compilation, whichever provider your compile model uses. Your source text is sent to that provider.
• Firecrawl (api.firecrawl.dev): URL scraping fallback. The URL you pasted is sent to Firecrawl.
• GitHub public API (api.github.com): README and metadata when you paste a GitHub repo URL.
• YouTube (youtube.com, youtube.googleapis.com): captions through youtube-transcript-api, then metadata through the YouTube Data API.
• Link previews: pasted URLs are fetched once with User-Agent: KomplBot/1.0 for their title and description.

Once, on first use: HuggingFace Hub (huggingface.co), a ~90 MB download of the all-MiniLM-L6-v2 embedding model on the first compile.

Build time only: image builds pull from PyPI, npm, Docker Hub and apt mirrors.

Kompl sends no analytics, error reports or version pings. The bundled n8n container's telemetry, version checks, templates and personalization are disabled in docker-compose.yml.

Under the hood

Three containers: a Next.js app (UI, API and the only process that writes the SQLite database), an NLP service (FastAPI with spaCy, YAKE/RAKE/KeyBERT/TextRank, TF-IDF, local sentence-transformer embeddings and Chroma, plus the LLM calls), and n8n for orchestration. A source goes through these steps:

• Local NLP first. spaCy handles named entities, and a router picks keyphrase methods based on how long and how entity-dense the text is, with TF–IDF overlap against your existing pages once there is a wiki to compare against. These outputs go into the prompt as context, narrowing what the model has to work out.
• One LLM call extracts the typed entities, concepts, claims, relationships, contradictions and summary for that source.
• Entity resolution runs as a cascade: alias and exact-title lookup, then name rules (spellings, plurals, abbreviations), then local embeddings, including each name's closest names and pages by meaning, with an LLM check reserved for the doubtful pairs. Two names become one page only when a rule or that check says so.
• Page targeting is ranked, not generated. TF–IDF ranks which pages a source should touch and a small triage call confirms them. The page plan (source summaries, entity, concept and comparison pages) stays deterministic.
• The LLM's real job is writing: drafting or rewriting each affected page with the new source's contribution and citation woven in. Sources are cited with short labels that Kompl stores as references to the source records, and wikilinks are injected by deterministic regex afterwards.
• Labels are merged once per compile: one LLM call folds near-duplicate categories into one.
• A claim check compares sources: likely claim pairs from different sources are judged by the LLM, and source dates tell a claim that changed over time from a live dispute.
• Commits go through an outbox. A source is either fully written or left for the reconciler at boot. The last two versions of every page are kept, so you can see what changed and restore one.

Upkeep. Settings → Wiki health runs checks on request, updates pages written under older rules, and runs Repair wiki: a backup first, the plan and cost shown, then all or none (it re-checks names merged before, rebuilds connections and tidies links and labels). A compile's progress page offers Retry failed and Redo from the plan, writing or saving step, with a preview and cost.

A daily spend cap (Settings → AI model & spend) stops LLM calls for the rest of the UTC day once the estimated spend reaches your limit.

Known limitations

• Single-tenant only: no user accounts or access control.
• Dense, long sources on Gemini 2.5: structured-output truncation on inputs above ~50K characters (often academic PDFs and surveys) causes extract_llm_failed. Switch to DeepSeek V4 Pro for that material; it handled up to ~200K characters cleanly in testing. Kompl does not auto-chunk long sources. Tracked in issue #7.
• Connectors: URLs (including YouTube transcripts and GitHub READMEs), file uploads (PDF, DOCX, PPTX, XLSX, TXT, MD, HTML), browser bookmarks, Twitter JSON export, Upnote and Apple Notes.
• Desktop browser only. There is no mobile app, and the web UI isn't built for small screens.
• Two names for one thing can stay two pages when their descriptions don't read alike (a rename, a translation, a nickname). Merging is careful on purpose: a wrong merge is worse than a duplicate.

Security

Kompl is built to run on a personal computer behind loopback or a LAN, and its security posture is calibrated for that.

Known security debt:

• Markdown HTML output is not sanitized yet, so Firecrawl-scraped content can carry XSS payloads. Even on a single-user install an ingested bookmark can deliver one; the fix is DOMPurify in the render pipeline.

CodeQL alerts. Some py/path-injection and js/path-injection alerts re-fire on every push because CodeQL's taint tracker doesn't follow cross-function sanitizers. They are dismissed one by one (rather than silenced in config) so any genuinely new sink surfaces for review. Reasoning per alert: docs/security/codeql-false-positives.md.

Reporting an issue: please open a GitHub Security Advisory rather than a public issue.

License

Kompl's source is Apache-2.0 (LICENSE): use, modify, fork and redistribute it freely under those terms.

One caveat about the bundled n8n container. Kompl runs n8nio/n8n unmodified as a runtime dependency for workflow orchestration. n8n is licensed under the Sustainable Use License, which is not OSI-approved. In practice:

• Self-hosting Kompl for personal or internal use is fully fine.
• Forking and redistributing Kompl source is fine (Apache-2.0 covers Kompl; n8n is a runtime dependency users pull themselves).
• Offering Kompl as a hosted service to third parties is the line: n8n's SUL restricts hosting n8n as a service for others. If your offering bundles n8n, contact n8n first.

See NOTICE for full attribution.