Mneme

The agent-native database platform on Base. Real Postgres. Real schemas. Wallet-auth. MCP-native. Memory in gold.

🟢 Live MVP — try it at mnemedb.dev or smoke-test the gateway: gateway.mnemedb.dev/health.

Mneme is a managed multi-tenant Postgres platform built for AI agents. Each agent gets a dedicated schema with four memory tables ready to go, then can create as many custom tables as it needs at runtime — text, int, jsonb, vector, uuid, anything Postgres + pgvector supports. No API keys, no DB credentials, no infrastructure: agents authenticate with their wallet, and everything is one SDK call (or one MCP tool call) away.

agent ─wallet-signed req─▶ mneme-gateway ─lookup project─▶ agent_<handle>.* on OUR Postgres

Why "database" and not "memory service"

Mem0 / Pinecone / Letta give you a fixed memory store. Mneme gives you a Postgres schema you control: create tables, drop tables, run vector searches over any column, all over the same wallet identity. The four default tables are a head start, not a ceiling.

Feature	Mneme	Mem0 / Pinecone
Custom tables at runtime	✅ via mneme.createTable(…)	❌
Vector search on any column	✅	partial
jsonb / text / int / uuid / date	✅	❌
Per-wallet schema isolation	✅	per-API-key
Wallet auth (no API keys)	✅	❌
MCP server for agents	✅	growing
Onchain identity (Phase 2)	✅	❌

What we built

• Our Postgres cluster (Neon for MVP). Every Mneme project = one schema, fully isolated.
• Wallet auth. EIP-712 typed-data on every request (or 24-hour session JWT). Smart wallets (Coinbase Smart Wallet, Safe) via ERC-1271/6492.
• Default tables. memories, documents, events, kvs provisioned at project create.
• Runtime DDL. POST /v1/tables to create any table; columns: text/int/bigint/bool/jsonb/timestamptz/vector/numeric/uuid/date.
• Generic vector search. KNN over any vector(N) column on any table.
• MCP server. Five tools — mneme_create_table, mneme_list_tables, mneme_insert, mneme_list, mneme_vector_search — for Claude / Cursor / Cline.
• Dashboard. Connect wallet, pick handle, see your schema + tables + stats + MCP config.

Monorepo

Workspace	Description
contracts/	Foundry — AgentRegistry (Phase 2 onchain handle layer)
gateway/	Bun + Hono — direct Postgres, schema-per-project, runtime DDL, wallet auth
sdk/	mneme-sdk — m.createTable, m.from(table).insert / list, m.vectorSearch, …
mcp/	mneme-mcp — Claude/Cursor MCP tools
dashboard/	Vite + React + TS + Tailwind + wagmi — pick handle, see tables, MCP config
scripts/smoke.ts	End-to-end smoke test (create project, custom table, insert, list, vector search)

Quickstart (agent code)

import { privateKeyToAccount } from "viem/accounts";
import { Mneme } from "mneme-sdk";

const m = new Mneme({
  account:    privateKeyToAccount(process.env.AGENT_PRIVATE_KEY as `0x${string}`),
  gatewayUrl: "https://gateway.mnemedb.dev",
});

// Use the defaults
await m.memories.insert({ text: "hello", embedding: vec });

// Or create your own tables
await m.createTable({
  name: "users",
  columns: [
    { name: "wallet",    type: "text", unique: true, nullable: false },
    { name: "twitter",   type: "text" },
    { name: "embedding", type: "vector", dim: 1536 },
  ],
});
await m.from("users").insert({ wallet: "0xabc…", twitter: "alice", embedding: vec });

// Vector search across any vector column
const { matches } = await m.vectorSearch({
  table: "users", column: "embedding", embedding: query, k: 5,
});

User flow

1. Visit dashboard → connect wallet (Coinbase Smart Wallet, MetaMask, …).
2. Pick a handle (alice).
3. Wallet signs CreateProject → schema agent_alice + 4 default tables provisioned in one transaction.
4. SDK / MCP / dashboard all work against agent_alice immediately.
5. Agents call mneme.createTable(…) as they need new shapes.

Operator setup (one time)

1. Postgres with pgvector — Neon free tier works for MVP.
2. gateway/.env: DATABASE_URL, GATEWAY_JWT_SECRET (32-byte hex).
3. Deploy gateway (Fly / Railway / Render). Deploy dashboard (Vercel).

Token

$MNEME — Day-1 launch with public MVP, Clanker / Flaunch on Base. Utility: gateway query metering + stake-for-discount + (Phase 2) onchain permissions registry stake.

Status

Pre-MVP. Stealth. Smoke test passes end-to-end (project create → custom table → insert → list → vector search → stats).