---
agentTools:
  projectIndex: https://docs.rainway.com/llms.txt
---

# Node.js SDK - Peer.externalId

[Home](https://docs.rainway.com/reference/about) > [@rainway/native](nodejs-sdk) > [Peer](./nodejs-sdk-peer) > [externalId](./nodejs-sdk-peer-externalid)

## Peer.externalId property

A string identifying this peer in your organization. For example: the "username" of the peer.

<b>Signature:</b>

```typescript
readonly externalId: string;
```