What is Open Mercato used for?

Open Mercato is an open-source TypeScript foundation framework for CRM, ERP, and commerce apps with multi-tenancy, RBAC, and an AI harness that guides coding agents. It is a good fit for building custom CRM or ERP with AI coding assistants and standardizing architecture across a large engineering team.

Is Open Mercato open source?

Yes. Open Mercato is open source under the MIT licence. Its source code is on GitHub at open-mercato/open-mercato and is written mainly in TypeScript.

Is Open Mercato free?

Yes. Open Mercato is open source, so the software itself is free to use.

Can I self-host Open Mercato?

Yes. Open Mercato can be self-hosted on your own server or infrastructure.

What are some alternatives to Open Mercato?

Similar open-source tools in the CRM category include DeskcommCRM, NextCRM and Twenty. SaaS products in the same category include Blackbaud, ABBLE and Act!.

Is Open Mercato actively maintained?

Yes. The most recent commit to Open Mercato was on 2 October 2026, and the latest release is v0.8.0, published on 18 September 2026. The project has 1.8k stars on GitHub.

Open Mercato: open-source CRM

About Open Mercato

Open Mercato is an open-source foundation framework for building CRM, ERP, and commerce applications in TypeScript with Next.js. Its pitch is that AI code assistants can write code but do not decide where it belongs or how to keep it consistent across large teams, so Open Mercato ships architectural decisions as conventions and specs. It is released under the MIT license.

Multi-tenancy, role-based access control, events, and domain modules come predefined. It includes an architecture-aware AI harness with autonomous skills for tasks like adding a data table, building forms that match the design system, or implementing a whole feature with unit and integration tests. Specs ship in the repository so AI output is reproducible, and there are helpers for human collaboration such as code review and ticketing flows.

The tagline invites teams to start with most of the work done. Open Mercato suits engineering teams building business software with Cursor, Claude Code, or Codex who want guardrails, and companies that want to self-host a customizable CRM or ERP base.

Key features

TypeScript and Next.js framework for CRM and ERP
Multi-tenancy and role-based access control
Event system and domain modules
Architecture-aware AI harness and skills
Spec-first development
Self-hostable

Good fit for

→Building custom CRM or ERP with AI coding assistants
→Standardizing architecture across a large engineering team

Built with: TypeScript; Next.js
Tags: crm; erp; typescript; nextjs; multi-tenant; rbac; ai-coding; framework

Open Mercato: questions and answers

What is Open Mercato used for?: Open Mercato is an open-source TypeScript foundation framework for CRM, ERP, and commerce apps with multi-tenancy, RBAC, and an AI harness that guides coding agents. It is a good fit for building custom CRM or ERP with AI coding assistants and standardizing architecture across a large engineering team.
Is Open Mercato open source?: Yes. Open Mercato is open source under the MIT licence. Its source code is on GitHub at open-mercato/open-mercato and is written mainly in TypeScript.
Is Open Mercato free?: Yes. Open Mercato is open source, so the software itself is free to use.
Can I self-host Open Mercato?: Yes. Open Mercato can be self-hosted on your own server or infrastructure.
What are some alternatives to Open Mercato?: Similar open-source tools in the CRM category include DeskcommCRM, NextCRM and Twenty. SaaS products in the same category include Blackbaud, ABBLE and Act!.
Is Open Mercato actively maintained?: Yes. The most recent commit to Open Mercato was on 2 October 2026, and the latest release is v0.8.0, published on 18 September 2026. The project has 1.8k stars on GitHub.