mem0/integrations/eve

@mem0/eve

Mem0 as a first-class Eve memory provider.

Eve recalls relevant memories before each turn, captures completed turns automatically, and exposes search / remember / forget tools bound to the locked memory scope. Mem0 owns storage, extraction, and retrieval.

import { defineMemory } from "eve/memory";
import { byPrincipal } from "eve/memory/scope";
import { mem0Provider } from "@mem0/eve";

export default defineMemory({
  description: "Recall and manage durable context for the current user.",
  provider: mem0Provider({
    apiKey: process.env.MEM0_API_KEY!,
  }),
  scope: byPrincipal,
});

Install

npm install @mem0/eve

eve is a peer dependency. Get an API key from the Mem0 dashboard.

Until Eve lists Mem0 in the official registry, add the slot file yourself as agent/memory/mem0.ts. After the registry PR lands, this becomes:

eve add memory/mem0

What it does

Eve hook	Mem0 behavior
recall["turn.started"]	Semantic search over memories for the locked scope
recall["compaction.completed"]	Same search after Eve compacting history
capture["turn.completed"]	Add the completed user/assistant turn
tools()	search, remember, forget

Every read and write is partitioned by memory.scope.key. The model cannot choose another caller. Replay uses operationId as an idempotency key.

If the slot file is named mem0.ts, Eve qualifies tools as mem0__search, mem0__remember, and mem0__forget.

Options

mem0Provider({
  apiKey: process.env.MEM0_API_KEY!,
  host: "https://api.mem0.ai",
  topK: 5,
  threshold: 0.1,
  rerank: false,
  infer: true,
  autoSearch: { enabled: true },
  capture: { enabled: true },
  metadata: { app: "support-agent" },
});

Option	Default	Purpose
apiKey	required	String or async getter
host	https://api.mem0.ai	Mem0 Platform host
topK	5	Memories recalled per turn
threshold	0.1	Minimum similarity
rerank	false	Mem0 reranking
infer	true	Extract facts on capture
autoSearch.enabled	true	Recall before each turn
capture.enabled	true	Write after each successful turn
metadata	{}	Extra metadata on captured turns

Official registry

Eve already listed Mem0 as an MCP connection. This package is the memory-provider path. After @mem0/eve is on npm, open a PR against vercel/eve that adds memory/mem0 using the files in registry/. See registry/README.md.

Development

Requires Node.js 24+.

cd integrations/eve
pnpm install
pnpm test
pnpm typecheck
pnpm build