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IPv6 Prefix /64 Calculator
x402
IPv6 Prefix /64 Calculator is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Calculates the /64 network prefix for a given IPv6 address using pure local computation — no network lookups involved.
Price / call$0.01
Success—
StatusUnknown
How this service works
IPv6 prefix 64: pure calculation on the address, no network call. The /64 network. $0.01 per call.
Output
Returns the /64 network prefix derived from the provided IPv6 address — specifically the first 64 bits of the address expressed as a network block (e.g. 2001:db8:85a3::/64). The calculation is performed locally with no external network calls.
Example use cases
Network segmentation planning
“I need to figure out which /64 subnet the IPv6 address 2600:1f18:4a3b:c900:1234:5678:9abc:def0 belongs to — can you calculate the prefix for me?”
Firewall rule grouping
“I have the IPv6 address fe80::1ff:fe23:4567:890a and I need its /64 network prefix to set up a firewall rule for the whole subnet.”
Routing table lookup preparation
“Can you extract the /64 prefix from 2a01:4f8:c17:b8f::2 so I can check it against our routing table?”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/ip/v6/prefix-64?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, cheap, purely computational /64 prefix extraction for an IPv6 address and do not require any enrichment data like geolocation or ASN. It is ideal for high-volume network tooling, firewall automation, or routing logic where latency and cost must be minimal and no external lookup is needed.
Side effects
- Invalid or malformed IPv6 address input returns an error
- Missing required input parameter results in a 400-level response
- IPv4 address provided instead of IPv6 returns an error or unexpected result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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