My IP API

GET /api/v2/myip

Returns the geolocation of the caller's own IP. The address is taken from the request itself; arbitrary targets are not supported.

Base URL, response format and rate limits are shared across endpoints — see the API documentation.

Parameter	In	Description
lang	query	en (default) or zh, controls the language of country / region / city names.

Example:

curl "https://tcp.lc/api/v2/myip?lang=en"

The response data uses the same fields as IP lookup, with target and addresses empty, and is always sent with Cache-Control: no-store.

Private or reserved addresses return code: -1000 with msg set to api.param.ip.private; data.args.ip carries the address.