# Langfuse + Playwright — Pipedream Connect

> Connect a user's Langfuse and Playwright accounts and expose tools for both apps directly in your product or your agent.

- Apps: Langfuse (`langfuse`) + Playwright (`playwright`)
- This page (HTML): https://pipedream.com/apps/langfuse/integrations/playwright
- One `external_user_id` owns both connected accounts, and each account stays independently revocable.

## One session, both toolsets (recommended)

- Endpoint: `https://remote.mcp.pipedream.net/v3`
- Headers: `Authorization: Bearer <token>` · `x-pd-project-id` · `x-pd-environment` · `x-pd-external-user-id` · `x-pd-app-slug: langfuse,playwright`
- `x-pd-app-slug` takes a comma-separated list, so `langfuse,playwright` is one session on one transport. Both toolsets arrive from a single `listTools()`, and a tool is called exactly as it would be in a single-app session.

```ts
import { Client } from "@modelcontextprotocol/sdk/client/index.js"
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const accessToken = await pd.rawAccessToken

const transport = new StreamableHTTPClientTransport(
  new URL("https://remote.mcp.pipedream.net/v3"),
  {
    requestInit: {
      headers: {
        Authorization: `Bearer ${accessToken}`,
        "x-pd-project-id": process.env.PIPEDREAM_PROJECT_ID!,
        "x-pd-environment": "production",
        "x-pd-external-user-id": "{external_user_id}", // any stable ID for this user in your system
        "x-pd-app-slug": "langfuse,playwright",
      },
    },
  },
)

const mcp = new Client({ name: "my-agent", version: "1.0.0" })
await mcp.connect(transport)

const { tools } = await mcp.listTools()

// One list, both toolsets: Langfuse and Playwright tools arrive
// together, each keyed by its own app's slug.

// e.g. run Add Feedback:
const result = await mcp.callTool({
  name: "langfuse-add-feedback",
  arguments: {
    projectId: "Trace ID",
    objectType: "Object Type",
  },
})
```

Docs: [MCP guide](https://pipedream.com/docs/connect/mcp/developers.md)

## Both apps from your backend

```ts
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const externalUserId = "{external_user_id}" // any stable ID for this user in your system

const [langfuseTools, playwrightTools] =
  await Promise.all([
    pd.components.list({ app: "langfuse" }),
    pd.components.list({ app: "playwright" }),
  ])

// One external user owns both connected accounts, so either app's tools
// run on their behalf with the same externalUserId.
```

Docs: [Managed auth guide](https://pipedream.com/docs/connect/managed-auth/quickstart.md) · [Tools guide](https://pipedream.com/docs/connect/components.md)

## Langfuse

- API slug: `langfuse` (use in MCP headers and tool keys)
- Auth: API key (Pipedream-managed)
- Categories: Artificial Intelligence (AI)
- Website: https://langfuse.com/
- App page (HTML): https://pipedream.com/apps/langfuse
- Tools: 7 actions · 2 triggers

Full tool list, API proxy, and SDK quickstart: https://pipedream.com/apps/langfuse.md

### Actions (7)

- [Add Feedback](https://pipedream.com/apps/langfuse/actions/add-feedback.md) — `langfuse-add-feedback`
- [Get Trace by ID](https://pipedream.com/apps/langfuse/actions/get-trace-by-id.md) — `langfuse-get-trace-by-id`
- [List Observations](https://pipedream.com/apps/langfuse/actions/list-observations.md) — `langfuse-list-observations`
- [List Project ID Options](https://pipedream.com/apps/langfuse/actions/list-project-id-options.md) — `langfuse-list-project-id-options`
- [List Scores](https://pipedream.com/apps/langfuse/actions/list-scores.md) — `langfuse-list-scores`
- [List Sessions](https://pipedream.com/apps/langfuse/actions/list-sessions.md) — `langfuse-list-sessions`
- [Log Trace](https://pipedream.com/apps/langfuse/actions/log-trace.md) — `langfuse-log-trace`

### Triggers (2)

- [New Score Received](https://pipedream.com/apps/langfuse/triggers/new-score-received.md) — `langfuse-new-score-received`
- [New Trace Received](https://pipedream.com/apps/langfuse/triggers/new-trace-received.md) — `langfuse-new-trace-received`

## Playwright

- API slug: `playwright` (use in MCP headers and tool keys)
- Auth: API key (Pipedream-managed)
- Categories: Testing
- Website: https://playwright.dev/
- App page (HTML): https://pipedream.com/apps/playwright
- Tools: 4 actions · 0 triggers

Full tool list, API proxy, and SDK quickstart: https://pipedream.com/apps/playwright.md

### Actions (4)

- [Get Page HTML](https://pipedream.com/apps/playwright/actions/get-page-html.md) — `playwright-get-page-html`
- [Get Page Title](https://pipedream.com/apps/playwright/actions/get-page-title.md) — `playwright-get-page-title`
- [Page PDF](https://pipedream.com/apps/playwright/actions/page-pdf.md) — `playwright-page-pdf`
- [Take Screenshot](https://pipedream.com/apps/playwright/actions/take-screenshot.md) — `playwright-take-screenshot`

---

- Langfuse: https://pipedream.com/apps/langfuse.md · Playwright: https://pipedream.com/apps/playwright.md
- All apps: https://pipedream.com/apps — index: https://pipedream.com/llms.txt
- Pipedream docs for agents: https://pipedream.com/docs/llms.txt