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Subnet CIDR Calculator
x402
Subnet CIDR Calculator is a paid API for AI agents from api.bakhour.ca, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Calculates subnet details (network address, broadcast address, prefix length, number of addresses) for a given CIDR block
Price / call$0.005
Success—
StatusUnknown
How this service works
Decision-grade security/due-diligence outcome reports ($20-$100) plus deterministic paid utilities ($0.001+) for software agents and automated workflows.
Output
Returns a JSON object containing the input CIDR string, IP version (4 or 6), total number of addresses in the block, prefix length, network address, and broadcast address.
Example use cases
Network planning for cloud VPC
“I'm setting up a VPC and need to know how many IP addresses are available in 10.0.0.0/20 — also tell me the network and broadcast address for that block.”
Validating firewall rule subnets
“Before I write this firewall rule, can you break down 172.16.0.0/12 for me? I need the network address, broadcast address, and total address count.”
Classroom subnetting exercise
“What are the subnet details for 192.168.100.0/26 — specifically the prefix length, number of addresses, network address, and broadcast address?”
Technical details
Endpoint
GEThttps://api.bakhour.ca/subnet/calculateWhen to prefer
Choose this endpoint when you need a quick, deterministic, paid computation of subnet metadata from a CIDR block without standing up your own networking library. Ideal for automated infrastructure workflows, network planning agents, or validation pipelines that need broadcast/network addresses and address counts on demand.
Side effects
- Missing or malformed 'cidr' query parameter returns an error
- Invalid CIDR notation (e.g. out-of-range prefix or malformed IP) may return a 400 or error response
- Payment not included or insufficient triggers a 402 Payment Required response
- IPv6 CIDR blocks may behave differently or be unsupported depending on server implementation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"cidr": "192.168.1.0/24",
"version": 4,
"num_addresses": 256,
"prefix_length": 24,
"network_address": "192.168.1.0",
"broadcast_address": "192.168.1.255"
}
}Tags
x402
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