bluecolumn-mcp

MCP server for BlueColumn — persistent semantic memory for AI agents.

Give any MCP-compatible agent (Claude Desktop, LangChain, AutoGen, CrewAI) the ability to remember, recall, and store observations across sessions.

Tools

Tool	Description
remember	Ingest text, audio, or documents into persistent memory
recall	Query memory with natural language, get AI-synthesized answer + sources
note	Store lightweight agent observations as searchable vectors

Setup

1. Get your BlueColumn API key

Sign up free at bluecolumn.ai — 60 min audio + 100 queries/month, no credit card required.

2. Install

npm install -g bluecolumn-mcp

3. Configure Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "bluecolumn": {
      "command": "bluecolumn-mcp",
      "env": {
        "BLUECOLUMN_API_KEY": "bc_live_YOUR_KEY"
      }
    }
  }
}

Restart Claude Desktop. Your agent now has persistent memory.

Usage

Once configured, your agent can:

Remember this: our API uses Voyage AI embeddings at 512 dimensions
→ Uses the `remember` tool automatically

What embedding model does our API use?
→ Uses the `recall` tool to query memory

Note: user prefers bullet points over paragraphs
→ Uses the `note` tool for quick observations

Example with LangChain

from langchain_mcp import MCPToolkit

toolkit = MCPToolkit(server_name="bluecolumn")
tools = toolkit.get_tools()
# Tools: remember, recall, note — all backed by BlueColumn

Pricing

Plan	Price	Audio	Queries
Free	$0	60 min/mo	100/mo
Developer	$29/mo	600 min	2,000
Builder	$79/mo	2,000 min	8,000
Scale	$249/mo	6,000 min	20,000

Links

• bluecolumn.ai
• API Documentation
• GitHub