LangSmith MCP Server
Rank #748glama/langchain-ai/langsmith-mcp-server
Enables language models to access LangSmith observability platform features including fetching conversation history, managing prompts, retrieving traces and runs, working with datasets and examples, and analyzing experiments.
LangSmith MCP Server is a Model Context Protocol (MCP) server published by langchain-ai. It ranks #748 of 115,460 servers tracked on MCP Toplist, and its repository has 131 GitHub stars. LangSmith MCP Server is listed across 2 registries — Glama and PulseMCP, with 5 release tags tracked from its GitHub repository. It was first listed on Sep 22, 2025 and most recently updated on Feb 25, 2026.
Ranks ahead of 114,712 of 115,460 servers on MCP Toplist.
Use LangSmith MCP Server
Requires user-supplied configuration before first use — typically an API key, token or connection string set via environment variables.
claude mcp add --transport http langsmith-mcp-server https://langsmith-mcp-server.onrender.com/mcpThis endpoint requires authentication — see the server’s docs for credentials.
[mcp_servers.langsmith-mcp-server]
url = "https://langsmith-mcp-server.onrender.com/mcp"Add to ~/.codex/config.toml. This endpoint requires authentication — see the server’s docs for credentials.
https://langsmith-mcp-server.onrender.com/mcpSettings → Connectors → “Add custom connector”, then paste this URL. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"langsmith-mcp-server": {
"url": "https://langsmith-mcp-server.onrender.com/mcp"
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). This endpoint requires authentication — see the server’s docs for credentials.
{
"servers": {
"langsmith-mcp-server": {
"type": "http",
"url": "https://langsmith-mcp-server.onrender.com/mcp"
}
}
}Save as .vscode/mcp.json in your workspace. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"langsmith-mcp-server": {
"serverUrl": "https://langsmith-mcp-server.onrender.com/mcp"
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"langsmith-mcp-server": {
"url": "https://langsmith-mcp-server.onrender.com/mcp"
}
}
}This endpoint requires authentication — see the server’s docs for credentials.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/glama%2Flangchain-ai%2Flangsmith-mcp-server)<a href="https://mcptoplist.com/server/glama%2Flangchain-ai%2Flangsmith-mcp-server"><img src="https://mcptoplist.com/badge/glama%2Flangchain-ai%2Flangsmith-mcp-server.svg" alt="MCP Toplist: Top 1% of 115,460" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 1 registry (1 delisted)
langchain-ai
Other servers by langchain-ai
View all langchain-ai servers →GitHub releases (5)
No registry surfaces explicit version metadata for this server. The list below shows release tags from the linked GitHub repository.
| Version | Published |
|---|---|
| langsmith-mcp-server==0.1.1 | Feb 25, 2026 |
| langsmith-mcp-server==0.1.0 | Feb 11, 2026 |
| langsmith-mcp-server==0.0.9 | Nov 12, 2025 |
| langsmith-mcp-server==0.0.8 | Nov 12, 2025 |
| langsmith-mcp-server==0.0.7 | Sep 22, 2025 |
Frequently asked questions
- Who maintains LangSmith MCP Server?
- LangSmith MCP Server is maintained by langchain-ai, which publishes 2 MCP servers (10 total versions) tracked on MCP Toplist.
- Is LangSmith MCP Server listed on the Official MCP Registry?
- LangSmith MCP Server is not on the Official MCP Registry. It is listed on Glama and PulseMCP.
- How many versions does LangSmith MCP Server have?
- No registry surfaces explicit version metadata for LangSmith MCP Server; MCP Toplist tracks 5 release tags from its GitHub repository, most recently published on Feb 25, 2026.
- Where can I find the source code for LangSmith MCP Server?
- The source code for LangSmith MCP Server is hosted at github.com/langchain-ai/langsmith-mcp-server.