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Network Calc CIDR Compare
x402
Network Calc CIDR Compare is a paid API for AI agents from network-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).
Compares two IPv4 or IPv6 CIDR blocks to determine their relationship (equal, contains, contained, adjacent, or disjoint), finds their common supernet, and optionally tests whether a given IP address falls within either block.
Price / call$0.02
Success—
StatusUnknown
How this service works
Compare two IPv4 or IPv6 CIDR blocks: equal, contains, contained, adjacent or disjoint, their common supernet, and test an IP.
Output
Returns a structured JSON object with: the relationship label (equal/contains/contained/adjacent/disjoint), a human-readable summary and verdict, whether the blocks overlap or are siblings, the common supernet, address counts for each block, overlap address count if applicable, and — if an IP was supplied — boolean flags indicating membership in each block.
Example use cases
Subnet containment check for firewall rules
“I'm writing firewall rules and need to know if 172.16.0.0/20 contains 172.16.4.0/24 — are they in a parent-child relationship, or are they disjoint? Also show me their common supernet.”
IP address membership validation
“Can you tell me if the IP 192.168.10.55 is inside 192.168.10.0/24, and also check whether it's in 192.168.0.0/16 while you're at it? Compare those two blocks too so I understand how they relate.”
IPv6 prefix overlap audit
“I need to audit two IPv6 prefixes — 2001:db8::/32 and 2001:db8:1::/48 — to find out if they overlap, which one is broader, and what their common supernet is.”
Technical details
Endpoint
GEThttps://network-calc.x402tookit.com/cidr-compare?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a precise, structured comparison between exactly two CIDR blocks — especially when you want the relationship classification, supernet, overlap details, and optional IP membership all in one call. Prefer it over manual subnet math or general-purpose calculators when building automated network validation, firewall rule auditing, or IP allocation logic.
Side effects
- Invalid CIDR notation (malformed prefix length or address) returns an error
- Missing required query parameters a or b returns a 400-level error
- Mixing IPv4 and IPv6 blocks may return an unsupported comparison error
- Very large address spaces may trigger degraded mode (degraded: true) with partial results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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