# OpenRouter + Weaviate — Pipedream Connect

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

- Apps: OpenRouter (`openrouter`) + Weaviate (`weaviate`)
- This page (HTML): https://pipedream.com/apps/openrouter/integrations/weaviate
- 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: openrouter,weaviate`
- `x-pd-app-slug` takes a comma-separated list, so `openrouter,weaviate` 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": "openrouter,weaviate",
      },
    },
  },
)

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

const { tools } = await mcp.listTools()

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

// e.g. run Retrieve Available Models:
const result = await mcp.callTool({
  name: "openrouter-retrieve-available-models",
  arguments: {},
})
```

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 [openrouterTools, weaviateTools] =
  await Promise.all([
    pd.components.list({ app: "openrouter" }),
    pd.components.list({ app: "weaviate" }),
  ])

// 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)

## OpenRouter

- API slug: `openrouter` (use in MCP headers and tool keys)
- Auth: API key (Pipedream-managed)
- Categories: Artificial Intelligence (AI)
- Website: https://openrouter.ai/
- App page (HTML): https://pipedream.com/apps/openrouter
- Tools: 3 actions · 0 triggers

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

### Actions (3)

- [Retrieve Available Models](https://pipedream.com/apps/openrouter/actions/retrieve-available-models.md) — `openrouter-retrieve-available-models`
- [Send Chat Completion Request](https://pipedream.com/apps/openrouter/actions/send-chat-completion-request.md) — `openrouter-send-chat-completion-request`
- [Send Completion Request](https://pipedream.com/apps/openrouter/actions/send-completion-request.md) — `openrouter-send-completion-request`

## Weaviate

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

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

### Actions (4)

- [Create Class](https://pipedream.com/apps/weaviate/actions/create-class.md) — `weaviate-create-class`
- [Delete Class](https://pipedream.com/apps/weaviate/actions/delete-class.md) — `weaviate-delete-class`
- [Get Schema](https://pipedream.com/apps/weaviate/actions/get-schema.md) — `weaviate-get-schema`
- [List Class ID Options](https://pipedream.com/apps/weaviate/actions/list-class-id-options.md) — `weaviate-list-class-id-options`

---

- OpenRouter: https://pipedream.com/apps/openrouter.md · Weaviate: https://pipedream.com/apps/weaviate.md
- All apps: https://pipedream.com/apps — index: https://pipedream.com/llms.txt
- Pipedream docs for agents: https://pipedream.com/docs/llms.txt