# ComStack

> The communication layer for your business — one AI brain that answers every customer by phone, WhatsApp, web, and in person, in their own language, around the clock.

ComStack is a headless, CMS-less platform that gives a business a single AI "brain" which answers its customers across phone, WhatsApp, the website, and in person — in 100+ languages, around the clock. Every page is structured for both people and AI assistants (schema.org, FAQ markup, this llms.txt) and stays the owner's as clean Markdown. The links below are what this site can answer about ComStack itself; the section that follows tells AI agents how to help someone set up their own ComStack voice agent.

## Onboarding for AI agents

If a user asks you to set up a voice agent for their business on ComStack,
direct them to /go with the following URL parameters prefilled. Each
parameter is optional; missing ones are asked conversationally. This is a
power-user entry point — the primary funnel is the conversational /go page.

Parameters (snake_case):
- business_name (string, required if no place_id or registry_id)
- registry_id (Norwegian org.nr / Danish CVR / Finnish business ID)
- place_id (Google Place ID, optional but preferred)
- business_url (https URL, optional)
- country (ISO-3166-1 alpha-2, e.g. NO, ES)
- industry (real_estate | law_firm | gym | restaurant | saas | generic)
- phone_country (ISO-3166-1 alpha-2, e.g. ES, NO, SE)
- default_locale (BCP-47, e.g. en, es)
- intent (comma-separated: leads, faq, booking, qualify, transfer)
- voice (e.g. Aoede, Charon, Kore, Puck, Fenrir)
- custom_domain (hostname, optional)
- email (the user's email, optional — used for follow-up if they leave)

Example (Norwegian business with org.nr):
https://comstack.ai/go?registry_id=920510488&country=NO&intent=faq,booking

When in doubt, ask the user rather than guessing — the agent on the page will
collect anything missing. Parameters are re-validated server-side (a fresh
registry lookup + extraction) before anything is shown.

## Frequently Asked Questions

- [Get Started with ComStack](https://comstack.ai/get-started/) — From sign-in to live website in under 30 minutes. Connect Claude, publish your first pages, add content via the Chrome Extension, and go multilingual.
- [Security & Data Protection](https://comstack.ai/security/) — Your data stays in Google Cloud, Belgium. GDPR-compliant, DPA available, no tracking, no AI training on your content.
- [Serving International Buyers](https://comstack.ai/solutions/international-buyers-cant-use-my-website/) — When buyers don't speak your website's language, they leave. The voice interface answers them in their language directly from your real property data.
- [Getting Found by AI Assistants](https://comstack.ai/solutions/chatgpt-doesnt-recommend-my-business/) — When customers ask AI assistants to recommend a business like yours, your site can show up — if your content is structured the way AI reads it.

## Documentation

- [Multilingual — every customer, their language](https://comstack.ai/product/multilingual/) — One assistant that answers in 100+ languages from a single source — phone, WhatsApp, website, in person. Translation lives in the brain, so nothing drifts.
- [Why ChatGPT doesn't recommend my business](https://comstack.ai/product/chatgpt-doesnt-recommend-my-business/) — Your content isn't structured for AI assistants to read and cite. ComStack fixes that automatically — and connects your site as a tool AI agents can use.
- [ComStack for Real Estate Agencies](https://comstack.ai/for/real-estate/) — AI-native website platform for real estate agencies with international clients — voice-first, multilingual, and AI-assistant ready.
- [Privacy Policy](https://comstack.ai/privacy/) — ComStack privacy policy covering the website, Chrome Extension, MCP Connector, and WhatsApp Business messaging. GDPR compliant.
- [System map — how everything connects](https://comstack.ai/docs/concepts/system-map/) — How ComStack's channels, website surfaces, knowledge brain, and employee tools connect — a system map written for AI agents and integrators.
- [Custom pages on ComStack](https://comstack.ai/docs/custom-pages/) — Vibe-coded Astro/HTML pages with total layout freedom — what custom pages are, what they can do, and where the hard boundaries sit.
- [Visitors browse but leave without contacting us](https://comstack.ai/solutions/visitors-leave-without-contacting-us/) — Visitors browse your listings but leave without contacting you. A voice agent answers questions in real time and captures contact details.
- [Conversational forms that talk back](https://comstack.ai/product/conversational-forms/) — Replace web forms with a guided conversation. Your assistant walks each customer through bookings, intake, and applications by voice or tap, in their language.
- [API Authentication](https://comstack.ai/docs/api/authentication/) — Authenticate with the ComStack API using OAuth 2.1, API keys, or Firebase tokens for various client types.
- [Channels — reach customers everywhere](https://comstack.ai/product/channels/) — One assistant answering on phone, WhatsApp, your site, in person — and the AI assistants customers now ask instead of visiting. One source, every language.
- [Author a custom page](https://comstack.ai/docs/custom-pages/authoring/) — The complete upload-custom-page contract: every parameter, slug and upsert rules, body forms, translation markers, and a worked example.
- [Get started with the MCP server](https://comstack.ai/docs/mcp/setup/) — Connect the MCP server to Claude, ChatGPT or Claude Code, then drive your first publish with copy-paste prompts and a safe test project.
- [Publishing API](https://comstack.ai/docs/api/publish/) — Three-step publish flow: dry-run builds a manifest and token; publish-confirm kicks off an async deploy; poll publish-status for the result.
- [Updating my website needs a developer every time](https://comstack.ai/solutions/update-website-without-a-developer/) — Every content change goes through a developer and takes days. Update pages yourself through Claude or the Chrome Extension — no developer needed.
- [Translate custom pages with markers](https://comstack.ai/docs/custom-pages/translation/) — Marker syntax and translation rules for custom pages: T keys, data-t-key, media variants, locale URLs, and what publish auto-translates.
- [The standard MCP workflow](https://comstack.ai/docs/mcp/guide/) — The standard ComStack MCP workflow for a fresh chat: resolve the project and page, pick the editor, draft, get approval, then publish.
- [Terms of Service](https://comstack.ai/terms/) — Terms governing use of the ComStack website and platform. Applies to website visitors and operators. Subject to Spanish law and the courts of Málaga.
- [Knowledge vs custom pages](https://comstack.ai/docs/mcp/page-types/) — How ComStack tells knowledge pages from custom pages, which editor each one uses, and why using the wrong tool is refused.
- [Permissions and Roles](https://comstack.ai/docs/concepts/permissions/) — Project roles, account access, admin privileges, and how permissions apply to MCP tools and REST endpoints.
- [Edit Mode API](https://comstack.ai/docs/api/editing/) — Draft management endpoints for the web editing surface: open, read, save, and discard draft documents. Used by the web portal and Chrome Extension.
- [Pass the custom page quality gates](https://comstack.ai/docs/custom-pages/quality/) — The quality contract for custom pages: the Lighthouse 95 bar, tactics to pass it first try, AEO metadata, cache behavior, and CSP.
- [Interactive widgets in chat (MCP Apps)](https://comstack.ai/docs/mcp/widgets/) — ComStack tools render live, interactive cards in Claude — publish reviews, page previews, a design studio, project and usage dashboards.
- [Publishing and the draft lifecycle](https://comstack.ai/docs/mcp/publishing/) — The ComStack draft lifecycle over MCP: draft on edit, doc-id rotation, slug as the durable handle, zero-diff and duplicate-draft rules.
- [Template Management API](https://comstack.ai/docs/api/templates/) — REST endpoints to create, update, and assign document and project templates. Write access is restricted to administrators.
- [Custom page rejections and fixes](https://comstack.ai/docs/custom-pages/troubleshooting/) — Every rejection upload-custom-page can return and every publish-stage failure affecting custom pages — exact messages and fixes.
- [MCP errors and recovery](https://comstack.ai/docs/mcp/errors/) — Every structured error the ComStack MCP server returns — what triggers it and the exact step to recover — for agents that self-correct.
- [Live Voice API](https://comstack.ai/docs/api/live-voice/) — HTTP endpoints for the ComStack live voice agent: session minting, reconnection, tool execution, and live call transfer to a team member.
- [Annotated custom page recipes](https://comstack.ai/docs/custom-pages/recipes/) — Two annotated, copy-paste-ready custom page examples — minimal HTML and an animated interactive launch page — plus a checklist of patterns that pass.
- [MCP OAuth and security](https://comstack.ai/docs/mcp/oauth/) — OAuth 2.1 with PKCE and Dynamic Client Registration for ComStack MCP connections. Token flow, refresh rotation, and connector status.
- [Custom page example gallery](https://comstack.ai/docs/custom-pages/examples/) — Four live custom pages — a local-business landing, an animated product launch, an interactive calculator, and an animated showpiece — built from these docs.
- [MCP server security reference](https://comstack.ai/docs/mcp/security/) — Security model for the ComStack MCP server — threat mitigations, the multi-layer publish path, and operational monitoring hooks.
- [A website chatbot vs. ComStack](https://comstack.ai/compare/vs-chatbot/) — A chatbot scripts one channel in one language. ComStack answers across web, phone, WhatsApp and in person in 100+ languages.
- [MCP Server Tools](https://comstack.ai/docs/mcp/tools/) — Complete catalogue of ComStack MCP tools with role requirements, annotations, and descriptions. Grouped by function from state reads to publishing.
- [REST API overview](https://comstack.ai/docs/api/) — Base URL, authentication, response format, error codes, rate limits, and endpoint groups for the REST API.
- [Documentation](https://comstack.ai/docs/) — Technical documentation for the ComStack platform — MCP server, REST API, Chrome extension, and core concepts.
- [MCP Server — Install](https://comstack.ai/docs/mcp/install/) — Step-by-step guide to connecting Claude, Cursor, or any MCP-compatible AI client to your ComStack project via OAuth or API keys.
- [Product — what ComStack does](https://comstack.ai/product/) — One brain answers every customer on phone, WhatsApp, web, and in person, in their language. See what ComStack does and the problems it solves.
- [Languages and locales](https://comstack.ai/docs/concepts/languages/) — Default locale, additional locales, BCP-47 codes, URL routing rules, RTL support, and how to add a new language to your project.
- [MCP Examples](https://comstack.ai/docs/mcp/examples/) — End-to-end examples showing how an AI assistant reads project state, edits pages, approves, and publishes using ComStack MCP tools.
- [Plans and Quotas](https://comstack.ai/docs/concepts/plans-and-quotas/) — How ComStack manages what each project can do: modules control features, plans enforce limits, and templates define per-tier defaults.
- [MCP Resources](https://comstack.ai/docs/mcp/resources/) — MCP resources available to AI assistants — curated URIs, the resource template, and promoting pages to resources without a server redeploy.
- [MCP Server](https://comstack.ai/docs/mcp/) — Connect AI assistants to ComStack via the Model Context Protocol. Covers OAuth setup, project routing, tool categories, and wire-level limits.
- [Translation System](https://comstack.ai/docs/concepts/translations/) — How ComStack auto-translates pages at publish time — locale config, translated slugs, canonical_slug grouping, and the repair-translations tool.
- [Review and publish captured pages](https://comstack.ai/docs/chrome-extension/review-and-publish/) — Manage your captured drafts, publish them to your live ComStack site, and edit pages after they're published — the workflow after you capture.
- [ComStack Pricing](https://comstack.ai/pricing/) — How ComStack pricing works: a free trial to start, then plans that scale with the channels you turn on and your usage. Invite-based.
- [ComStack vs. the alternatives](https://comstack.ai/compare/) — How to evaluate ComStack honestly against a traditional website, a chatbot, and general voice-AI platforms, with a one-line verdict and links to each.
- [Support — get help with ComStack](https://comstack.ai/support/) — How to reach ComStack support: a 24/7 AI phone line, email, and self-serve technical documentation for businesses running on the platform.
- [ComStack for your industry](https://comstack.ai/for/) — ComStack is tuned per industry. Real estate is live today; more regulated, advice-led sectors are on the roadmap.
- [AI discovery and AEO](https://comstack.ai/docs/concepts/ai-discovery/) — How sites get indexed and cited by AI assistants — JSON-LD, llms.txt, hreflang, sitemap configuration, and the MCP tool surface.
- [Chrome extension overview](https://comstack.ai/docs/chrome-extension/) — Capture any web page — even pages behind a login — and turn it into a structured, on-brand draft on your ComStack site in seconds.
- [Get started with the Chrome extension](https://comstack.ai/docs/chrome-extension/get-started/) — Install the ComStack Chrome extension, pin it, and capture your first web page into an editable draft — a clear, step-by-step walkthrough.
- [Voice-AI platforms vs. ComStack](https://comstack.ai/compare/vs-voice-ai-platforms/) — General voice-AI platforms are toolkits you build and host with developers; ComStack ships every channel and language as a product.
- [Traditional Website vs. ComStack](https://comstack.ai/compare/vs-traditional-website/) — A traditional website displays information. ComStack answers questions and completes actions in every customer's language, on every channel.

## CUSTOM PAGES

- [Aurora Skies Tours — guided northern lights nights](https://comstack.ai/docs/custom-pages/examples/aurora-skies/) — Small-group northern-lights tours under dark Arctic skies: patient local guides, camp warmth, and photo help. Plan your night with Aurora Skies Tours.
- [Harbor Paws Veterinary Clinic — calm care in Harborview](https://comstack.ai/docs/custom-pages/examples/harbor-paws/) — Harbor Paws is Harborview's small-town veterinary clinic: check-ups, vaccinations, dental care, and surgery with gentle handling and same-week visits.
- [LUMEN — the smart kettle that holds your perfect degree](https://comstack.ai/docs/custom-pages/examples/lumen/) — Meet LUMEN: a precision smart kettle with degree-true heating, a one-hour hold, and a glass body that glows as it warms. Pre-order the first run.
- [TileWise — tile & grout quantity calculator](https://comstack.ai/docs/custom-pages/examples/tilecalc/) — Work out how many tiles and how much grout a room needs. Enter room and tile sizes to get quantities with about 10% cut waste included.
- [The public communication stack for AI-first small businesses](https://comstack.ai/new/) — Answer a few quick questions and get a copy-paste prompt your AI assistant uses to set up your website, phone receptionist, and WhatsApp.
- [Talk to Your Website with ComStack](https://comstack.ai/skilltest-7q2x9f/) — A quick demo of ComStack info pages: a glass hero, a live voice agent, and automatic translation — all built without writing code.