langchainjs vs mem0
langchainjs and mem0 share 7 technologies: @pinecone-database/pinecone, weaviate-client, Zod, cohere-ai, groq-sdk, ollama, and @azure/identity. langchainjs is written in TypeScript and mem0 in Python.
LinkedInWhat they share and what sets them apart
langchain-ai
langchainjs
The agent engineering platform
TypeScript18.3kRead on November 6, 2026, at commit 8103487What is langchainjs built with?Only in langchainjs
- Express
- MCP
- Hono
- bson
prompts
- validate-npm-package-name
- TypeORM
- langsmith
- Cheerio
- handlebars
- js-yaml
yaml
- js-tiktoken
- mustache
@cfworker/json-schema
@standard-schema/spec
@langchain/langgraph
@hono/node-server
@aws-sdk/credential-provider-node
- jose
In common
@pinecone-database/pinecone
weaviate-client
- Zod
cohere-ai
groq-sdk
- ollama
- @azure/identity
mem0ai
mem0
The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.
Python68.4kRead on November 5, 2026, at commit ed1f10fWhat is mem0 built with?Only in mem0
- FastAPI
psycopg
- Qdrant
- Postgres
OpenAI
PostHog- Anthropic
uvicorn
- SQLite
- Redis
- Supabase
- @azure/search-documents
@zilliz/milvus2-sdk-node
- cassandra-driver
chromadb
- Elastic
- MongoDB
- MySQL
oracledb
AWS S3- Mistral AI
- Rich
- alembic
- SQLAlchemy
- bcrypt
- cryptography
- passlib
- python-jose
- mem0ai
strands-agents
- jsonschema
- Pydantic
- boxen
- ora
- @opencode-ai/plugin
earendil-works
typebox
ai
- LangChain
- @turbopuffer/turbopuffer
- Hugging Face
- Cloudflare
Side by side
langchainjsmem0
SizeLines written by people and agents, without generated ones; code files, without tests.
langchainjs446,312 lines written1,388 code files
mem0236,036 lines written624 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
langchainjs0.6% of its commits signed by AIWith Claude Code, Cursor, and GitHub Copilot
mem03.6% of its commits signed by AIWith Claude Code and Cursor
ActivityFrom GitHub and its history, on the day SeeRepo read it.
langchainjsLast push November 6, 20267,382 commits18,327 stars
mem0Last push November 4, 20262,653 commits68,421 stars
TestsThe files that test the code, and the share of code files a test imports.
langchainjs761 test files37.1% of its code files have a test that imports them
mem0324 test files47.1% of its code files have a test that imports them
Frequently asked questions
Which is bigger, langchainjs or mem0?
langchainjs, with 446,312 lines written; mem0 has 236,036.
The proof: langchain-ai/langchainjs's code at commit 8103487
Which has more GitHub stars, langchainjs or mem0?
mem0, with 68,421 stars; langchainjs has 18,327.
The proof: mem0ai/mem0 on GitHub
Which has more tests, langchainjs or mem0?
langchainjs, with 761 test files; mem0 has 324.
The proof: langchain-ai/langchainjs's code at commit 8103487
Which was updated more recently, langchainjs or mem0?
langchainjs: its last push was on November 6, 2026, and mem0's on November 4, 2026.
The proof: langchain-ai/langchainjs's commits on GitHub
Which has more commits signed by AI, langchainjs or mem0?
mem0: an AI signed 3.6% of its commits, with Claude Code and Cursor; in langchainjs, 0.6%.
The proof: the commits each tool signed in mem0ai/mem0
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