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CIDR / Subnet Calculator
x402
CIDR / Subnet Calculator is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Computes network and broadcast address, first/last usable host, netmask, wildcard mask, and total/usable address counts for any IPv4 CIDR block.
Price / call$0.01
Success—
StatusUnknown
How this service works
CIDR / subnet calculator: network and broadcast address, first and last usable host, netmask and wildcard mask, total and usable address counts for any IPv4 CIDR block. Network planning and validation. $0.01 per calculation.
Output
Returns network address, broadcast address, first and last usable host IP, netmask (dotted-decimal), wildcard mask, total address count, and usable address count for the given IPv4 CIDR block.
Example use cases
Plan a new office subnet
“I'm setting up a new office network using 10.0.5.0/26 — can you give me the network address, broadcast, usable host range, netmask, and how many devices I can actually assign IPs to?”
Validate ACL wildcard mask
“I need the wildcard mask for 172.16.32.0/20 so I can plug it into an access control list — what is it, and what's the full subnet breakdown?”
Verify IP range for cloud VPC
“We're allocating 10.100.0.0/22 for a new cloud VPC — tell me the first and last usable host addresses, the broadcast address, and how many usable IPs we'll have available.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/ip/cidrWhen to prefer
Use this endpoint when an agent needs precise subnet math for IPv4 CIDR blocks — especially for network planning, IP allocation validation, ACL wildcard masks, or cloud VPC sizing — without requiring a local networking library or manual calculation.
Side effects
- Invalid CIDR notation returns an error (e.g. missing prefix length or out-of-range values)
- IPv6 CIDR blocks are not supported — only IPv4
- Missing or malformed query parameter returns a 400-level error
- Payment failure or insufficient USDC balance prevents the call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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