# PLEXXER

> PLEXXER is a database with the API already written: design your entities in the browser and PLEXXER hosts the database and the JSON API on top of it, with validation, relations, aggregations, scoped access tokens, row security for your users, and backups.
> Your team and the AI agents working with it start from the same documented endpoints, and every token says exactly how far an agent may go.

## Reference

- [Full API reference in one file](https://app.plexxer.com/llms-full.txt): request grammar, endpoint shapes, error codes and versioning, as one Markdown file
- [API reference](https://app.plexxer.com/api-reference.md): the same reference with section anchors; its index is at https://app.plexxer.com/llms.txt
- [Realtime](https://app.plexxer.com/api-reference.md#realtime): subscribe to the changes of an entity under row security, and listen and send on private broadcast channels, over one connection; the generated TypeScript and C# clients do both

## Connect an agent

- [Agent setup](https://app.plexxer.com/api-docs#agents-mcp): connect Claude Code, Cursor, VS Code or any MCP client to a PLEXXER app with a scoped token; the tool reference is at https://app.plexxer.com/api-docs#agents-tools
- [MCP server](https://api.plexxer.com/mcp): MCP endpoint, Streamable HTTP, bearer token

## Licences

- [Licences](https://plexxer.com/#licences): Free, Standard, Enterprise and Unlimited, with the apps, API calls, database size and backups each includes