LangChain Forum

Topic	Replies	Views	Activity
Post Identification and Tags LangSmith Product Help self-hosted , hybrid , cloud , langsmith-studio , product-feedback Tag your post in the Help > Lang* product subcategory to ensure the right experts are looking at your issue or question, e.g. cloud, hybrid, or self-hosted.	1	491	April 25, 2025
I try to invoke my fleet agent but seems like my Next.js code can't read my api_key environment variable so i get 401 unauthenticated error Fleet js-help	7	23	May 21, 2026
Best practices for self-hosting LangGraph Server OSS without LangGraph keys LangGraph self-hosted , cloud , python-help	3	7	May 21, 2026
Dynamically Enabling/Disabling Graphs in a LangGraph Server at Runtime LangGraph self-hosted , cloud , python-help	3	9	May 21, 2026
SSL certificate error from httpx with LangGraph server LangGraph self-hosted , python-help	3	51	May 20, 2026
LangGraph thread copy can take 12+ minutes: recommended production pattern? LangGraph cloud , product-feedback , python-help , feature-request	2	23	May 19, 2026
Proposal: Graph-wide default error handler for StateGraph (fallback for nodes without error_handler) LangGraph product-feedback , python-help , feature-request	2	53	May 19, 2026
Can Langgraph postgresql_checkpointer framework implement a function which could delete the latest user ask and some ai messages but not delete the thread_id？ OSS Product Help	1	18	May 19, 2026
Could RAG pipelines realistically cause deployment timeouts, is Render suitable for first-time RAG deployments? Deployment python-help	3	23	May 19, 2026
Langgraph deploy CLI cannot deploy to EU Langsmith Cloud Deployment	6	26	May 19, 2026
Will DeltaChannel be the default for AgentState.messages, or expected to stay opt-in? LangChain python-help	6	44	May 18, 2026
Prompt_cache_retention: '24h' supported in langchain agents and where to provide it, inside invoke or while creating client? LangChain python-help	3	37	May 15, 2026
New integration: langchain-w2a — LangChain tools for W2A-enabled websites LangChain python-help	2	47	May 15, 2026
Proposal: additional docs for implementing custom DB checkpointers or a guide on generic base checkpointer LangGraph self-hosted , product-feedback , python-help , feature-request	1	41	May 15, 2026
Langsmith Fleet Sandbox Failure LangSmith Product Help	3	31	May 15, 2026
Is there any way to disable the system default tools such as ls , read_files etc Deep Agents	4	49	May 15, 2026
Getting 404 when clicking "Connect Github" on the Issues/Langsmith Engine tab Observability & Evals	1	26	May 14, 2026
Human-in-the-loop approval dashboard for LangGraph agents — open source, free to deploy LangGraph self-hosted , product-feedback , python-help	3	113	May 13, 2026
How do I use langchain_postgres' init_vectorstore_table correctly? LangChain python-help	1	21	May 13, 2026
Trouble understanding and editing experiment summary evaluators feedbacks Observability & Evals	3	39	May 13, 2026
Metadata filter not filtering for alerts LangSmith Product Help	2	28	May 13, 2026
Run link 404s — v2 endpoint can't find run that v1 just returned Observability & Evals	3	37	May 12, 2026
Using LangChain for a simple capcut video workflow automation — is this reasonable? OSS Product Help	2	19	May 12, 2026
Support timedelta for CachePolicy.ttl, consistent with TimeoutPolicy LangGraph python-help , feature-request	1	20	May 12, 2026
Research: Friction Points in Agentic Commerce Transactions Talking Shop	3	39	May 14, 2026
The x402 illusion: Is advertising dead in the age of agents? Talking Shop cloud , product-feedback	2	15	May 12, 2026
Would pre-inference routing help long-context agent workflows? Talking Shop intro-to-langgraph	7	24	May 11, 2026
How to make an image tool? LangChain python-help	10	3193	May 11, 2026
Protecting LangChain agent memory from poisoning attacks — OWASP Agent Memory Guard (open source) Talking Shop	0	30	May 11, 2026
Follow-up: The Moltbook question just got very real — Meta acquisition and open agent identity standards Talking Shop	4	96	May 10, 2026

Post Identification and Tags

Tag your post in the Help > Lang* product subcategory to ensure the right experts are looking at your issue or question, e.g. cloud, hybrid, or self-hosted.