IPv4 parse

ipv4-parse · version 1.0.0 · URLs & IP addresses · free, no key needed

Parse a canonical dotted-decimal IPv4 address into octets and a uint32 integer string.

Use when you need to: ipv4 parse · parse dotted decimal ipv4 · ipv4 to octets and uint32.

Supported

ipv4 parse
parse dotted decimal ipv4
ipv4 to octets and uint32

Not supported

IPv6
IPv4-mapped IPv6
hexadecimal octets
CIDR prefixes
hostnames
ports

Behavior

address is four decimal octets 0-255 separated by dots, with no spaces, hex, or IPv4-mapped IPv6.
A zero octet is written 0; 00, 01, and other leading zeros are rejected.
octets is the four JSON integers in left-to-right order.
integer is the canonical integer string of o0*2^24 + o1*2^16 + o2*2^8 + o3, in 0..4294967295.

Input

address (string, required): max length 15; pattern ^(?:0|[1-9][0-9]{0,2})(?:\.(?:0|[1-9][0-9]{0,2})){3}$

Output

octets (array of integer, required): min items 4; max items 4; each min 0; each max 255
integer (string, required): max length 10; pattern ^(0|[1-9][0-9]*)$

Limits

max address length: 15
octet min: 0
octet max: 255
integer min: 0
integer max: 4294967295

Example

Request input:

{
  "address": "192.168.1.1"
}

Response:

{
  "result": {
    "octets": [
      192,
      168,
      1,
      1
    ],
    "integer": "3232235777"
  }
}

How to call it

MCP

Connect https://computefirst.net/mcp (setup), then call execute with:

{
  "id": "ipv4-parse",
  "version": "1.0.0",
  "input": {
    "address": "192.168.1.1"
  }
}

HTTP (no key)

curl -X POST https://computefirst.net/v1/tools/ipv4-parse/versions/1.0.0/execute \
  -H "Content-Type: application/json" \
  -d '{"address":"192.168.1.1"}'

The machine-readable contract is at /v1/tools/ipv4-parse/versions/1.0.0.

CLI

node cli.mjs run ipv4-parse 1.0.0 --input input.json --base-url https://computefirst.net

Get the client at /clients/cli/.

IPv4 format: Format a uint32 integer string or four octets as a canonical dotted-decimal IPv4 address.
IPv4 CIDR parse: Parse an IPv4 CIDR block into its network, broadcast, netmask, wildcard mask, usable host range and address counts.
IPv6 parse: Parse an IPv6 address (any RFC 4291 textual form) into its 8 hextets and a 128-bit integer string.
IPv4 address offset: Add a signed integer offset to an IPv4 address, throwing if the result leaves the IPv4 address space.
IPv4 mask convert: Convert between an IPv4 prefix length, dotted subnet netmask, and dotted wildcard (host) mask.
IPv4 range to cidrs: Convert an arbitrary IPv4 address range into the minimal list of CIDR blocks that exactly covers it.