{"uid":"cap_q-RAtfSZ0N_0VZFyvQA9y","slug":"ipv6-prefix-64-calculator-6aecf5b6","name":"IPv6 Prefix /64 Calculator","description":"IPv6 prefix 64: pure calculation on the address, no network call. The /64 network. $0.01 per call.","url":"https://ip.intel.rallylive.ca/ip/v6/prefix-64?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Ehhrs4zDpE0dMazkq46NY","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates the /64 network prefix for a given IPv6 address using pure local computation — no network lookups involved.","exampleAgentPrompt":"What is the /64 network prefix for the IPv6 address 2001:0db8:85a3:0000:0000:8a2e:0370:7334?","exampleUseCases":[{"title":"Network segmentation planning","prompt":"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?"},{"title":"Firewall rule grouping","prompt":"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."},{"title":"Routing table lookup preparation","prompt":"Can you extract the /64 prefix from 2a01:4f8:c17:b8f::2 so I can check it against our routing table?"}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T06:44:13.530Z","isFirstParty":false,"canonicalSlug":"ipv6-prefix-64-calculator-6aecf5b6"}