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Hindsight Mempalace

Hindsight Mempalace

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About Hindsight Mempalace

Self-hosted long-term memory for AI agents. An MCP server that gives agents persistent, hierarchical recall (L0–L3) over pgvector — retain preferences, decisions and observations, then recall them by topic across sessions. MIT, clone-and-run, requires Postgres + pgvector.

#memory#long-term-memory#pgvector#self-hosted#knowledge#rag#agents

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

mcp.json · Universal config
{
  "mcpServers": {
    "hindsight-mempalace": {
      "command": "npx",
      "args": [
        "-y",
        "hindsight-mempalace-mcp"
      ],
      "env": {
        "HINDSIGHT_URL": "<HINDSIGHT_URL>",
        "MEMPALACE_BANK": "<MEMPALACE_BANK>"
      }
    }
  }
}
Run commandnpx -y hindsight-mempalace-mcp
Environment variables to set
HINDSIGHT_URLBase URL of the Hindsight API (self-hosted). Defaults to http://127.0.0.1:5100.
MEMPALACE_BANKDefault memory bank ID for retain/recall.

Local servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.

Packages
npmhindsight-mempalace-mcp1.0.0

Tools

5

Saved tool list · updated 3w ago

ParameterTypeRequiredDescription
textstringYesThe text to memorize — a fact, observation, or document content
bank_idstringNoMemory bank ID (default: mempalace-main)
contextstringNoContext label (e.g. "meeting notes", "client call")
document_idstringNoDocument ID to group related facts
tagsarrayNoTags for categorization
roomstringNoTopic room (auto-classified if omitted)
hallenumNoKnowledge type (auto-classified if omitted)fact | event | decision | preference | discovery | procedure | warning
layerenumNoPriority layer (default: L2)L0 | L1 | L2 | L3

Details

The maintainer has not added details yet. Check the README in the repository.

Comments

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New to MCP?

From what the protocol is to installing your first server, these answers cover most first questions.

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