> ## Documentation Index
> Fetch the complete documentation index at: https://docs.publica.la/llms.txt
> Use this file to discover all available pages before exploring further.

# Platform IP Addresses

## Outbound IP Addresses

When Publica.la connects to your external services (authentication APIs, permission endpoints, or webhook receivers), all requests originate from the following IP addresses over **HTTPS (port 443)**:

| IP Address                 |
| -------------------------- |
| `44.219.135.50`            |
| `3.218.91.65`              |
| `100.51.119.83`            |
| `2600:1f10:43f2:8300::/56` |

The `2600:1f10:43f2:8300::/56` entry is an IPv6 CIDR range: requests may originate from any address within it.

Allowlist **all** of the addresses above. Any of them can serve a given request, and we keep this page current as addresses are added or retired, so re-check it whenever a call from us is rejected.

## When You Need This

If your infrastructure uses IP-based access control, you may need to allowlist these addresses. Common scenarios include:

- **Permission APIs**: Your server validates reading permissions for Publica.la users
- **Webhook receivers**: Your firewall restricts incoming connections by IP
- **Authentication endpoints**: Your identity provider allowlists third-party callers

## Important Notes

- These IPs apply to all outbound requests from our platform, including background jobs and queue workers.
- All outbound traffic uses HTTPS (port 443).
- You can verify that requests from these IPs originate from Publica.la. If you receive requests from other IPs claiming to be our platform, please contact your account manager.