# Updown.io

updown.io is a simple and inexpensive website monitoring service that checks the availability and performance of your websites and APIs.

- **Category:** server monitoring
- **Auth:** API_KEY
- **Tools:** 4
- **Triggers:** 0
- **Slug:** `UPDOWN_IO`
- **Version:** 20260211_00

## Tools

### List Node IPs

**Slug:** `UPDOWN_IO_LIST_NODE_IPS`

Tool to retrieve a list of all updown.io server IP addresses. Use when configuring firewalls or IP allowlists to permit updown.io monitoring.

### List node IPv4 addresses

**Slug:** `UPDOWN_IO_LIST_NODE_IPV4`

Tool to list all updown.io server IPv4 addresses. Use when you need to retrieve the current set of updown.io node IPv4 addresses.

### List IPv6 nodes

**Slug:** `UPDOWN_IO_LIST_NODE_IPV6`

Tool to retrieve a list of all updown.io server IPv6 addresses. Use when you need to enumerate available IPv6 monitoring nodes.

### List Monitoring Nodes

**Slug:** `UPDOWN_IO_LIST_NODES`

Tool to retrieve a list of all updown.io monitoring servers. Use when you need to discover available monitoring nodes.
