gmem

@yksanjo

About gmem

Persistent typed memory MCP server for Solana programs and EVM contracts. Agents remember Programs, PDAs, Contracts, Decisions, Findings across sessions.

#solana #evm #anchor #hardhat #memory #agent #claude-code #developer-tools

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "gmem": {
      "command": "npx",
      "args": [
        "-y",
        "@yksanjo/gmem"
      ]
    }
  }
}

Tools

No tools detected

Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

What is gmem?

gmem is an MCP server that gives AI coding agents (Claude Code, Cursor, Cline, Continue.dev) persistent, typed project memory for blockchain development. It stores entities like Solana programs, EVM contracts, PDAs, accounts, architectural decisions, audit findings, and integrations in an append-only SQLite database, so context is never lost between sessions.

How to use gmem?

Install gmem globally via npm (npm install -g @yksanjo/gmem) or add it to your MCP client configuration by specifying npx -y @yksanjo/gmem as the command. It exposes 7 read/write/query/ingest MCP tools. To auto-ingest an existing project, use the gmem.ingest_anchor (for Anchor workspaces) or gmem.ingest_hardhat (for Hardhat workspaces, v1.1+) tool.

Key features of gmem

Auto-ingest Anchor and Hardhat workspaces
SQLite with FTS5 BM25 ranking for semantic recall
Append-only versioning – history is never overwritten
One SQLite database per project – no cross-project leakage
7 MCP tools for read/write/query/ingest workflows
MIT-licensed, single binary via npm

Use cases of gmem

Preserve project context for AI agents working on Solana or EVM smart contracts across sessions
Track architectural decisions, audit findings, and rationale alongside code
Automatically ingest workspace metadata (IDLs, ABIs, Anchor versions) into memory
Maintain a shared, typed project memory for teams using AI coding tools

FAQ from gmem

How do I install gmem?

Use npm install -g @yksanjo/gmem for a global install, or add the npx -y @yksanjo/gmem command to your MCP client configuration.

What entities does gmem support?

gmem defines first-class entity types: Program, Contract, PDA, Account, Decision, Finding, and Integration. Each has typed fields relevant to on-chain development.

How does gmem store memory?

Memory is stored in a local SQLite database with FTS5 full-text search and BM25 ranking. Each project gets its own database, and all writes are append-only to preserve history.

Is gmem open source?

Yes, gmem is MIT-licensed. The source is available on GitHub at https://github.com/yksanjo/gmem.

Can gmem auto-ingest existing Solana and EVM projects?

Yes. gmem provides gmem.ingest_anchor for Anchor workspaces (Solana) and gmem.ingest_hardhat for Hardhat workspaces (EVM, v1.1+).

Frequently asked questions

How do I install gmem?

Use `npm install -g @yksanjo/gmem` for a global install, or add the `npx -y @yksanjo/gmem` command to your MCP client configuration.

What entities does gmem support?

gmem defines first-class entity types: Program, Contract, PDA, Account, Decision, Finding, and Integration. Each has typed fields relevant to on-chain development.

How does gmem store memory?

Memory is stored in a local SQLite database with FTS5 full-text search and BM25 ranking. Each project gets its own database, and all writes are append-only to preserve history.

Is gmem open source?

Yes, gmem is MIT-licensed. The source is available on GitHub at https://github.com/yksanjo/gmem.

Can gmem auto-ingest existing Solana and EVM projects?

Yes. gmem provides `gmem.ingest_anchor` for Anchor workspaces (Solana) and `gmem.ingest_hardhat` for Hardhat workspaces (EVM, v1.1+).

Comments

Basic information

More Other MCP servers

🚀 Model Context Protocol (MCP) Curriculum for Beginners

microsoft

This open-source curriculum introduces the fundamentals of Model Context Protocol (MCP) through real-world, cross-language examples in .NET, Java, TypeScript, JavaScript, Rust and Python. Designed for developers, it focuses on practical techniques for building modular, scalable,

16.7K

Glasswarp

See and control a real Windows PC you own — from any MCP client, locally or remotely. Observe (UIA + screenshots), click/type/drag/scroll, launch apps, owner Live View. BYOH: your machine, your key.