Search results

MCPToolCallResult is rejected as a type expression by strict type checkers

Status: Open.

#564 In langchain-ai/langchain-mcp-adapters;

· Ricardo (ricayanzon) opened on Jul 3, 2026

[Bug] Resource Leak (FD/Zombie Processes) in MultiServerMCPClient.get_tools during concurrent task failures

Status: Open.

#551 In langchain-ai/langchain-mcp-adapters;

· Qiu Yucheng (QiuYucheng2003) opened on Jun 23, 2026

Upgrading langchain-mcp-adapters from 0.2.1 to 0.3.0 breaks with ImportError: cannot import name 'streamable_http_client' due to missing mcp dependency bump

Status: Open.

#550 In langchain-ai/langchain-mcp-adapters;

· Prudvi Chakravarthy Sorra (prudvisorra-aifa) opened on Jun 22, 2026

Integration idea: BGPT MCP example for scientific evidence retrieval

Status: Open.

#543 In langchain-ai/langchain-mcp-adapters;

· connerlambden opened on Jun 14, 2026

MCP tools with a parameter named "config" silently broken by LangChain's RunnableConfig injection

Status: Open.

#532 In langchain-ai/langchain-mcp-adapters;

· Apoorv Garg (apoorv-garg) opened on May 30, 2026

Misleading "api_key not set" error when connection config is malformed

Status: Open.

#526 In langchain-ai/langchain-mcp-adapters;

· BlendTreeD opened on May 27, 2026

StructuredTool._run() raises NotImplementedError when only coroutine is available, instead of falling back to async execution

Status: Open.

#524 In langchain-ai/langchain-mcp-adapters;

· yxb945 (lsf1001) opened on May 27, 2026

Feature Request: Support passing server-defined params extensions (e.g. LangGraph context) through tools/call

Status: Open.

#502 In langchain-ai/langchain-mcp-adapters;

· Alex Gatto (awg66) opened on May 7, 2026

Fix TypeError in resources.py and make __aexit__ an async coroutine in client.py

Status: Open.

#496 In langchain-ai/langchain-mcp-adapters;

· naveen9871 opened on Apr 28, 2026

MultiServerMCPClient.get_tools() silently returns no tools when any single server fails to connect

Status: Open.

#492 In langchain-ai/langchain-mcp-adapters;

· Ben @ ITS (itsgroup-co-nz) opened on Apr 24, 2026

Add Support to MCP Apps

Status: Open.

#491 In langchain-ai/langchain-mcp-adapters;

· oleg-savko opened on Apr 23, 2026

Feature Request: custom headers in websocket transport for MultiServerMCPClient

Status: Open.

#489 In langchain-ai/langchain-mcp-adapters;

· Ferran Maylinch (fmaylinch) opened on Apr 23, 2026