# OlivERP > OlivERP is an open-source online ERP for small businesses and independent sellers to manage sales, purchases, stock, VAT, expenses, and financial summaries without accounting-heavy workflows. OlivERP offers English and Spanish interfaces, a read-only demo, and a documented project-scoped API for scripts, n8n, Make, AI agents, and other integrations. The product is under active development, so interfaces, the data model, and the API may change. ## Product guide - [OlivERP overview](https://oliverp.4oli.com/index.md): Concise, LLM-friendly product facts, modules, API capabilities, audiences, and limits. - [OlivERP](https://oliverp.4oli.com/): English product page and app entry point. - [OlivERP in Spanish](https://oliverp.4oli.com/es): Spanish product page. - [Public documentation](https://oliverp.4oli.com/documentation): User guide, API reference, and private GitHub plugin documentation. - [Spanish documentation](https://oliverp.4oli.com/es/documentation): Spanish versions of the public guides. ## Integration references - [OpenAPI contract](https://oliverp.4oli.com/api/v1/openapi.json): Machine-readable API schema and endpoint contract. - [API reference in Markdown](https://raw.githubusercontent.com/martinezharo/oliverp/main/docs/API.md): Authentication, project scope, idempotency, endpoints, and examples. - [App guide in Markdown](https://raw.githubusercontent.com/martinezharo/oliverp/main/docs/APP_GUIDE.md): Current workflows and product behavior. - [Plugin guide in Markdown](https://raw.githubusercontent.com/martinezharo/oliverp/main/docs/PLUGINS.md): Reviewed, private GitHub plugin model. ## Technical references - [Project README](https://raw.githubusercontent.com/martinezharo/oliverp/main/README.md): Current features, stack, setup, deployment, and documentation map. - [Source code](https://github.com/martinezharo/oliverp): Canonical source repository. - [Sitemap](https://oliverp.4oli.com/sitemap.xml): Public landing and documentation pages in both languages. ## Optional - [License](https://raw.githubusercontent.com/martinezharo/oliverp/main/LICENSE): MIT License terms for the source code.