tinydb-emcipi

This repo is docker-friendly – an MCP wrapper around TinyDB that gives chatbots long-term memory without leaving your laptop.

Tiny MCP server backed by TinyDB — drop-in long-term memory for chatbots and small-context LLM apps.

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Why?

Keeping structured facts in the prompt is wasteful. With tinydb-emcipi an agent can store, search and mutate JSON records through MCP tool calls, loading only what it needs.

• Zero dependencies – TinyDB stores JSON on disk.
• Schema-first – every record validated; the schema itself is queryable.
• Opinionated tools – list DBs, switch DB, introspect schema, CRUD, search.
• Docker-friendly – run locally or in CI with a single docker compose up.

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Quick Start

Native

pip install -r requirements.txt
python -m main           # MCP endpoint on http://localhost:8000/mcp

Docker Compose

docker compose up        # builds dependencies at first run

The compose file mounts the repo into /app inside a python:3.12-slim container and starts the same command.

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Available MCP Tools (summary)

Category	Tool	Purpose
Discovery	create_database_tool	create new DB (optionally with initial schema)
	list_databases_tool	see all TinyDB files
	switch_active_db_tool	set the DB every other tool will use
	get_database_info_tool	schema, sample records, field list
Records	search_records_tool	field-value query, returns schema too
	get_all_records_tool	dump every record
	add_record_tool / update_record_tool	create / modify validated records
Schema	set_schema_tool	create / update JSON Schema for a DB

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Project Structure (top-level)

config/        configuration & sample
logs/          runtime logs
sandbox/db/    TinyDB JSON databases
utils/         code modules (db, schema, mcp wrappers)
main.py        entry-point
docker-compose.yml
requirements.txt

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Contributing

Pull requests are welcome! Please:

1. Follow PEP 8 and keep imports sorted.
2. Add or update unit tests.
3. Keep the README and doc-strings concise and useful.

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Example MCP Prompt

A ready-to-use JSON request lives at scratchpad/mcp.json.sample showing how to invoke these tools from an MCP client.

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© 2025 • MIT License