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 |