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SPECIFICTION
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Frontstead Kit

frontstead.com

Free plan WebAPISelf-hosted
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Spec score 7.8 #11 of 28 in Real Estate Marketplace Software

What it is

Frontstead Kit is a free, open-source, MLS-ready development kit for building branded real-estate portals, including golf, waterfront, and other niche lifestyle markets. It combines a Next.js public portal, an Express 5 and Prisma REST API, and a separate RESO Web API synchronization worker. The portal supports property search, listing pages, inquiries, consumer accounts, and favorites. Supported MLS connector vendors listed are MLS Grid, Trestle, Bridge Interactive, and Spark API. Typesense can provide typo-tolerant search; without it, the kit uses PostgreSQL search. Node.js 22.12 and PostgreSQL are required, while Redis and Typesense are optional. Docker Compose is the documented portable deployment baseline, and Frontstead says no specific platform is assumed. MLS display controls start disabled, and unregistered MLS boards cause configuration to fail. The agent API is disabled by default. The project is community-supported through public repository issues. Agent HQ is separately licensed and adds CRM features. The free plan is free and self-hosted.

Spec sheet

Purpose
Frontstead Kit is an open-source, MLS-ready development kit for building branded real-estate portals, including portals for golf, waterfront, and other niche lifestyle markets.Read 4 Oct 2026 · frontstead.com
Intended users
Frontstead says it works with developers and agencies deploying the kit for brokerages and niche markets.Read 4 Oct 2026 · frontstead.com
Deployment
Docker Compose is the documented portable deployment baseline, and Frontstead says the kit does not assume a specific platform.Read 4 Oct 2026 · frontstead.com
Support
The documentation describes the kit as community-supported and directs users to public repository issues for reproducible defects and feature requests.Read 4 Oct 2026 · frontstead.com
Commercial CRM features
The separately licensed Agent HQ adds contacts, transactions, tasks, campaigns, market reports, AI chat, CMA report generation, and Gmail and Google Calendar integration.Read 4 Oct 2026 · frontstead.com
Compliance controls
MLS display controls default to off, and an unregistered MLS board fails at configuration load rather than assuming that attribution is unnecessary.Read 4 Oct 2026 · frontstead.com
Components
The kit includes a Next.js public portal, an Express 5 and Prisma REST API, and a separate RESO Web API synchronization worker.Read 4 Oct 2026 · frontstead.com
MLS integrations
The RESO Web API connector lists MLS Grid, Trestle (CoreLogic/Cotality), Bridge Interactive, and Spark API (FBS) as supported vendors.Read 4 Oct 2026 · frontstead.com
Portal features
The public portal supports property search, listing pages, inquiries, consumer accounts, and favorites.Read 4 Oct 2026 · frontstead.com
Requirements
The kit requires Node.js 22.12 and PostgreSQL; Redis and Typesense are optional.Read 4 Oct 2026 · frontstead.com
Search
Typesense is optional for typo-tolerant search, and the kit falls back to PostgreSQL search when Typesense is not configured.Read 4 Oct 2026 · frontstead.com
Security boundary
The agent API is disabled by default; Frontstead says keeping unused routes unmounted reduces avoidable attack surface.Read 4 Oct 2026 · frontstead.com

Plans and prices

Frontstead Kit Free Apache-2.0 · self-hosted portal, API, and MLS worker Read 4 Oct 2026 · frontstead.com
Agent HQ Priced on request One production client deployment per license · one year of updates · perpetual use of purchased version Read 4 Oct 2026 · frontstead.com
Frontstead Pro Priced on request Setup and launch · custom development · managed hosting · MLS board onboarding and IDX/VOW paperwork Read 4 Oct 2026 · frontstead.com

Every Frontstead Kit plan and price →

Strong points and limits

Strong points

  • Apache-2.0 self-hosted kit
  • Includes portal, API, and MLS worker
  • Lists four MLS connector vendors
  • Optional typo-tolerant Typesense search
  • Docker Compose deployment baseline

Limits

  • Requires Node.js 22.12 and PostgreSQL
  • Community-supported through repository issues
  • Agent HQ is separately licensed
  • No free trial is offered

Who it suits

Frontstead Kit suits developers and agencies deploying branded portals for brokerages or niche property markets. It is intended for teams comfortable running a self-hosted Node.js and PostgreSQL stack.

Verdict

Frontstead Kit provides the core pieces for a self-hosted, MLS-connected real-estate portal, with explicit configuration and security boundaries. Its free plan covers the portal, API, and synchronization worker; managed services and Agent HQ are separate offerings.

Where Specifiction places it

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