Last Names

Autocomplete last names (surnames) by prefix. Returns the most common surnames matching the query.

Try it

—

Endpoint

GET/v1/last-name/<query>

Base URL: https://autocomplete.namedone.com

SDK Usage

lastNames()

1import { createClient } from "@namedone/autocomplete"
2
3const nd = createClient("nd_...")
4const { results } = await nd.lastNames("sm")

curl

1# Exchange your API key for a token
2curl -X POST https://token.namedone.com/v1 \
3  -H "Content-Type: application/json" \
4  -d '{"apiKey":"nd_..."}'
5
6# Query the last names endpoint
7curl "https://autocomplete.namedone.com/v1/last-name/sm?token=<jwt>"

Response Format

JSON

{
  "results": [
    {
      "id": "last-name-0",
      "text": "Smith",
      "type": "last-name"
    }
  ],
  "query": "sm"
}

API Query Parameters

Sent as query string parameters on the HTTP request to the API.

Parameter	Type	Default	Description
token	string	—	JWT obtained from the token API. Required for authentication.

SDK Options

Passed to the SDK methods (e.g. firstNames(query, opts)). These are processed client-side and never sent to the API.

Option	Type	Default	Description
limit	number	10	Maximum number of results (1–50). Applied client-side by the SDK.
simple	boolean	false	Simplify response: deduplicate by text and strip to {text, type}.

Examples

Query: sm

{
  "results": [
    {
      "id": "last-name-0",
      "text": "Smith",
      "type": "last-name"
    },
    {
      "id": "last-name-1",
      "text": "Smyth",
      "type": "last-name"
    },
    {
      "id": "last-name-2",
      "text": "Smithers",
      "type": "last-name"
    },
    {
      "id": "last-name-3",
      "text": "Smiley",
      "type": "last-name"
    },
    {
      "id": "last-name-4",
      "text": "Smart",
      "type": "last-name"
    }
  ],
  "query": "sm"
}

Notes

Surnames are sorted by frequency in the UK population.
Uses the same prefix-list architecture as first names for instant responses.