arcticdb-mcp

An MCP server for structured read/write access to ArcticDB.

Overview • Demo • Quick Start • Configuration • Tools • Development

Overview

arcticdb-mcp turns ArcticDB into an AI data copilot. Assistants can automate symbol updates, batch jobs, and time-series queries while built-in versioning protects every change. Go from question to data change in minutes, not scripts, with full traceability. You can also design your own workflows on top of arcticdb-mcp.

Demo Video

Watch the live watch db demo:

arcticdb-live-demo.mp4

Quickstart

Install and run with uvx (recommended):

uvx arcticdb-mcp

Configure your MCP client (Claude Desktop / Cursor / Windsurf / Continue):

{
  "mcpServers": {
    "arcticdb": {
      "command": "uvx",
      "args": ["arcticdb-mcp"],
      "env": {
        "ARCTICDB_URI": "lmdb:///path/to/your/database"
      }
    }
  }
}

Ask your assistant:

"Show me the last 5 rows of AAPL in library finance"
"Create a snapshot of finance before I update symbols"
"List versions for symbol ES_intraday"

Installation

Choose one:

# Recommended
uvx arcticdb-mcp

# Or
pipx install arcticdb-mcp

# Or
pip install arcticdb-mcp

Python requirement: >=3.9

Configuration

Set ARCTICDB_URI in MCP client config or environment.

URI examples

Local LMDB (Linux/macOS): lmdb:///path/to/db
Local LMDB (Windows): lmdb://C:/path/to/db
AWS S3: s3://s3.amazonaws.com:bucket?region=us-east-1&access=KEY&secret=SECRET
Azure Blob: azure://AccountName=X;AccountKey=Y;Container=Z
S3-compatible (MinIO, etc.): s3://your-endpoint:bucket?access=KEY&secret=SECRET

You can also use a .env file:

ARCTICDB_URI=lmdb:///path/to/db

Run Modes

stdio (default)

This is the default mode used by desktop MCP clients.

ARCTICDB_URI=lmdb:///path/to/db python -m arcticdb_mcp

HTTP / SSE

Set ARCTICDB_MCP_PORT to run over HTTP/SSE:

ARCTICDB_URI=lmdb:///path/to/db ARCTICDB_MCP_PORT=8000 python -m arcticdb_mcp

Endpoint:

http://localhost:8000/sse

Tools

Current server exposes 48 tools.

Arctic and Libraries

Tool	File	What it does
`get_uri`	`arcticdb_mcp/tools/arctic_tools.py`	Return the ArcticDB URI used by this MCP server connection.
`describe`	`arcticdb_mcp/tools/arctic_tools.py`	Return a compact summary of the ArcticDB store.
`modify_library_option`	`arcticdb_mcp/tools/arctic_tools.py`	Modify a configurable library option.
`list_libraries`	`arcticdb_mcp/tools/library_tools.py`	List all libraries in the Arctic instance.
`create_library`	`arcticdb_mcp/tools/library_tools.py`	Create a new library with the given name.
`delete_library`	`arcticdb_mcp/tools/library_tools.py`	Delete a library and all its underlying data permanently.
`library_exists`	`arcticdb_mcp/tools/library_tools.py`	Check whether a library with the given name exists.
`get_library`	`arcticdb_mcp/tools/library_tools.py`	Return the name and full list of symbols stored in a library.
`get_library_options`	`arcticdb_mcp/tools/maintenance_tools.py`	Return non-enterprise library options.
`get_enterprise_options`	`arcticdb_mcp/tools/maintenance_tools.py`	Return enterprise library options.

Symbols

Tool	File	What it does
`list_symbols`	`arcticdb_mcp/tools/symbol_tools.py`	List all symbol names stored in the given library.
`symbol_exists`	`arcticdb_mcp/tools/symbol_tools.py`	Check whether a symbol exists in the given library.
`read_symbol`	`arcticdb_mcp/tools/symbol_tools.py`	Read a symbol's full data as row records with index included.
`head_symbol`	`arcticdb_mcp/tools/symbol_tools.py`	Return the first `n` rows of a symbol (default 5).
`tail_symbol`	`arcticdb_mcp/tools/symbol_tools.py`	Return the last `n` rows of a symbol (default 5).
`write_symbol`	`arcticdb_mcp/tools/symbol_tools.py`	Write data to a symbol, creating a new version.
`append_symbol`	`arcticdb_mcp/tools/symbol_tools.py`	Append rows to an existing symbol, creating a new version.
`update_symbol`	`arcticdb_mcp/tools/symbol_tools.py`	Update a date range of a timeseries symbol, creating a new version.
`delete_symbol`	`arcticdb_mcp/tools/symbol_tools.py`	Delete a symbol and all its versions from the library.
`delete_data_in_range`	`arcticdb_mcp/tools/symbol_tools.py`	Delete rows within a date range from a timeseries symbol, creating a new version.
`get_symbol_info`	`arcticdb_mcp/tools/symbol_tools.py`	Return schema, row count, date range, and metadata summary for a symbol.
`list_versions`	`arcticdb_mcp/tools/symbol_tools.py`	List all versions of a symbol with version number and write timestamp.
`read_metadata`	`arcticdb_mcp/tools/symbol_tools.py`	Read only metadata for a symbol without loading its data.
`write_metadata`	`arcticdb_mcp/tools/symbol_tools.py`	Update metadata for a symbol without modifying its data.

Batch Operations

Tool	File	What it does
`write_batch`	`arcticdb_mcp/tools/batch_tools.py`	Write multiple symbols in one call.
`append_batch`	`arcticdb_mcp/tools/batch_tools.py`	Append to multiple symbols in one call.
`update_batch`	`arcticdb_mcp/tools/batch_tools.py`	Update multiple symbols in one call.
`delete_batch`	`arcticdb_mcp/tools/batch_tools.py`	Delete multiple symbols or symbol versions in one call.
`read_batch`	`arcticdb_mcp/tools/batch_tools.py`	Read multiple symbols in one call.
`read_metadata_batch`	`arcticdb_mcp/tools/batch_tools.py`	Read metadata for multiple symbols in one call.
`get_description_batch`	`arcticdb_mcp/tools/batch_tools.py`	Get schema/description for multiple symbols in one call.
`write_metadata_batch`	`arcticdb_mcp/tools/batch_tools.py`	Write metadata for multiple symbols in one call.
`write_pickle`	`arcticdb_mcp/tools/batch_tools.py`	Write arbitrary pickle-serializable data to a symbol.
`write_pickle_batch`	`arcticdb_mcp/tools/batch_tools.py`	Write multiple pickle-serializable payloads in one call.

Snapshots

Tool	File	What it does
`create_snapshot`	`arcticdb_mcp/tools/snapshot_tools.py`	Create a named snapshot of the current library state.
`list_snapshots`	`arcticdb_mcp/tools/snapshot_tools.py`	List the names of all snapshots in a library.
`delete_snapshot`	`arcticdb_mcp/tools/snapshot_tools.py`	Delete a named snapshot from a library.
`read_symbol_from_snapshot`	`arcticdb_mcp/tools/snapshot_tools.py`	Read a symbol as it existed when a snapshot was created.

Query Helpers

Tool	File	What it does
`query_filter`	`arcticdb_mcp/tools/query_tools.py`	Filter rows using conditions.
`query_filter_isin`	`arcticdb_mcp/tools/query_tools.py`	Filter rows where a column value is in a list.
`query_groupby`	`arcticdb_mcp/tools/query_tools.py`	Group by a column and aggregate.
`query_date_range`	`arcticdb_mcp/tools/query_tools.py`	Filter rows by date range on a datetime-indexed symbol.
`query_resample`	`arcticdb_mcp/tools/query_tools.py`	Resample a datetime-indexed symbol and aggregate.

Maintenance

Tool	File	What it does
`reload_symbol_list`	`arcticdb_mcp/tools/maintenance_tools.py`	Force a symbol-list cache reload for a library.
`compact_symbol_list`	`arcticdb_mcp/tools/maintenance_tools.py`	Compact symbol-list cache into a single key in storage.
`is_symbol_fragmented`	`arcticdb_mcp/tools/maintenance_tools.py`	Check whether compaction would reduce segment count for a symbol.
`defragment_symbol_data`	`arcticdb_mcp/tools/maintenance_tools.py`	Defragment symbol data by compacting fragmented row-sliced segments.
`prune_previous_versions`	`arcticdb_mcp/tools/maintenance_tools.py`	Remove non-snapshotted symbol versions except the latest one.

Example Prompts

"Read symbol NVDA from library finance"
"Filter NVDA where price > 500 and volume >= 1000"
"Resample ES_intraday to 5min and aggregate price mean, volume sum"
"Write metadata owner=research to symbol ES_intraday"
"Delete data in range for ES_intraday from 2024-01-01 to 2024-01-05"

Development

git clone https://github.com/YMuskrat/arcticdb-mcp
cd arcticdb-mcp
pip install -e .

Run locally:

ARCTICDB_URI=lmdb:///path/to/db python -m arcticdb_mcp

Test with MCP Inspector:

ARCTICDB_URI=lmdb:///tmp/test_db npx @modelcontextprotocol/inspector python -m arcticdb_mcp

Community Backlog

These ArcticDB capabilities are intentionally left open for contributors:

stage
finalize_staged_data
sort_and_finalize_staged_data
delete_staged_data
get_staged_symbols
read_batch_and_join
admin_tools

Contributing

See CONTRIBUTING.md.

License

MIT

Name		Name	Last commit message	Last commit date
Latest commit History 29 Commits
.github		.github
arcticdb_mcp		arcticdb_mcp
demo/media		demo/media
tests		tests
.gitignore		.gitignore
CONTRIBUTING.md		CONTRIBUTING.md
Dockerfile		Dockerfile
LICENSE		LICENSE
README.md		README.md
mcp.example.json		mcp.example.json
pyproject.toml		pyproject.toml

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arcticdb-mcp

Overview

Table of Contents

Demo Video

Quickstart

Installation

Configuration

URI examples

Run Modes

stdio (default)

HTTP / SSE

Tools

Arctic and Libraries

Symbols

Batch Operations

Snapshots

Query Helpers

Maintenance

Example Prompts

Development

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Repository files navigation

arcticdb-mcp

Overview

Table of Contents

Demo Video

Quickstart

Installation

Configuration

URI examples

Run Modes

stdio (default)

HTTP / SSE

Tools

Arctic and Libraries

Symbols

Batch Operations

Snapshots

Query Helpers

Maintenance

Example Prompts

Development

Community Backlog

Contributing

License

About

Resources

License

Contributing

Uh oh!

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