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Merged
Mason Daugherty (mdrxy) merged 4 commits into from
May 30, 2026
Merged

add dcode LangSmith MCP setup #4178

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8da9fce
docs: add dcode LangSmith MCP setup
open-swe May 27, 2026
0068559
docs: mention dcode TUI MCP login
open-swe May 27, 2026
a67d59a
Merge branch 'main' into open-swe/dcode-langsmith-mcp
mdrxy May 27, 2026
aec0b01
Merge branch 'main' into open-swe/dcode-langsmith-mcp
mdrxy May 30, 2026
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27 changes: 27 additions & 0 deletions src/langsmith/langsmith-remote-mcp.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,33 @@ Add the server to your project's `.mcp.json` (or run `claude mcp add --transport

Then run `/mcp` and select **langsmith** to complete the OAuth flow. Tools become available as `mcp__langsmith__<tool_name>`.

### Deep Agents Code (`dcode`)

Add the server to your user-level `~/.deepagents/.mcp.json` file to make it available in every Deep Agents Code project, or add it to a project-level `.mcp.json` file for only that project. See the [Deep Agents Code MCP tools docs](/oss/deepagents/code/mcp-tools) for discovery locations and precedence rules.

```json
{
"mcpServers": {
"langsmith": {
"url": "https://api.smith.langchain.com/mcp",
"transport": "http",
"auth": "oauth"
}
}
}
```

Then complete the OAuth login flow in one of two ways:

- In the Deep Agents Code TUI, run `/mcp`, select **langsmith**, and follow the login prompt.
- From your shell, run:

```bash
dcode mcp login langsmith
```

Launch `dcode`, or restart an active session, to load the LangSmith MCP tools. In an interactive session, run `/mcp` to inspect server status and loaded tools.

### Cursor

Add to your Cursor `mcp.json`:
Expand Down
15 changes: 15 additions & 0 deletions src/oss/deepagents/code/mcp-tools.mdx
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Expand Up @@ -336,6 +336,20 @@ For remote MCP servers that require OAuth (Slack, GitHub, Notion, Linear, and ot

`auth: "oauth"` is mutually exclusive with an `Authorization` header on the same entry, and cannot be set on a stdio server.

To connect Deep Agents Code to LangSmith, use the [LangSmith Remote MCP](/langsmith/langsmith-remote-mcp):

```json title=".mcp.json"
{
"mcpServers": {
"langsmith": {
"url": "https://api.smith.langchain.com/mcp",
"transport": "http",
"auth": "oauth"
}
}
}
```

### Run the login flow

```bash
Expand Down Expand Up @@ -469,5 +483,6 @@ Connected MCP servers and their tools are automatically listed in the agent's sy

## Further reading

- [LangSmith Remote MCP](/langsmith/langsmith-remote-mcp): connect Deep Agents Code to LangSmith tools over OAuth
- [LangChain MCP guide](/oss/langchain/mcp): protocol details, building custom servers, and using `langchain-mcp-adapters` programmatically
- [MCP specification](https://modelcontextprotocol.io/): the official protocol spec and server registry
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