# mpolden/echoip

A simple IP address lookup service.

Repository: https://github.com/mpolden/echoip
Canonical: https://ross.abutalabs.com/products/echoip
Homepage: https://ifconfig.co
Language: Go
License: BSD-3-Clause
License Family: permissive
Topics: ip-lookup, ip-location, go, geoip, ip-address-lookup
Last push: 2026-02-28T18:58:11+00:00

## Health v2 (maintenance only)
Score: 63/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 69, release rhythm 35, longevity 100
- inputs: {"age_days": 5035, "days_push": 186, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4347, forks 562 (observed 2026-08-28T04:08:46.195150+00:00)

## What it is
echoip is a lightweight Go service for looking up a client's IP address, with optional country, city, and ASN details via MaxMind GeoIP databases. It powers ifconfig.co and can be self-hosted or run in Docker.

## Use cases
- find my public IP address from the command line
- get my IP's country, city, and ASN as JSON
- self-host an IP lookup API
- check if a port is reachable from outside
- look up geolocation for an arbitrary IP address
- test IPv4 vs IPv6 connectivity

## When to choose
- you need a fast, simple what-is-my-IP endpoint for CLI tools like curl
- you want to self-host an IP geolocation service with MaxMind data
- you need JSON output and IPv6 support

## When to avoid
- you need deep threat intelligence or reputation data for IPs
- you need a full geolocation API with maps and reverse geocoding
- you don't want to manage MaxMind database downloads and license keys

## Facets
- artifact type: service
- maturity: active
- function: http-server, api-framework, search-engine, self-hosted
- domain: networking, web-development, developer-tools, self-hosted
- platform: self-hosted, go, cross-platform
- tags: ip-lookup, geoip, maxmind, what-is-my-ip, asn-lookup, ipv6, linux, macos, docker

## Member repositories
- mpolden/echoip (main) score 63

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:46.195150+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:21:34.161859+00:00, confidence not recorded.
  - readme: https://github.com/mpolden/echoip (fetched 2026-08-28T04:08:46.195150+00:00, sha c646cc1c8c59)
  - homepage: https://ifconfig.co (fetched 2026-08-29T09:10:22.025518+00:00, sha 7c729da17a9f)
- Data as of 2026-08-30T08:39:29.467469+00:00.