---
title: "[USES 10 UNITS PER NAME] Infer the likely country of residence of up to 100 personal first / last names, or surnames. Assumes names as they are in the country of residence OR the country of origin."
method: POST
path: "/api2/json/countryFnLnBatch"
tags: ["personal"]
---

# [USES 10 UNITS PER NAME] Infer the likely country of residence of up to 100 personal first / last names, or surnames. Assumes names as they are in the country of residence OR the country of origin.

`POST /api2/json/countryFnLnBatch`

## Request body

- BatchFirstLastNameIn
  - `personalNames` FirstLastNameIn[]
    - `id` string
    - `firstName` string
    - `lastName` string

## Response `200`

A list of origined names.

- BatchFirstLastNameGeoOut
  - `personalNames` FirstLastNameGeoOut[] — Classified names
    - `script` string
    - `id` string
    - `explanation` string
    - `firstName` string — The first name (also known as given name)
    - `lastName` string — The last name (also known as family name, or surname)
    - `score` number, double — Higher score is better, but score is not normalized. Use calibratedProbability if available.
    - `country` string — Most likely country
    - `countryAlt` string — Second best alternative : country
    - `region` string — Most likely region (based on country ISO2 code)
    - `topRegion` string — Most likely top region (based on country ISO2 code)
    - `subRegion` string — Most likely sub region (based on country ISO2 code)
    - `countriesTop` string[] — List countries (top 10)
    - `probabilityCalibrated` number, double — The calibrated probability for country to have been guessed correctly. -1 = still calibrating.
    - `probabilityAltCalibrated` number, double — The calibrated probability for country OR countryAlt to have been guessed correctly. -1 = still calibrating.
    - `religionStats` ReligionStatOut[] — Geographic religious statistics, assuming country is correctly predicted.
      - `religion` string
      - `pct` number, double
    - `religionStatsAlt` ReligionStatOut[] — Geographic religious statistics, for country best alternative.
      - `religion` string
      - `pct` number, double

## Other responses

- `400` — Bad request (ex. too many names)
- `401` — Missing or incorrect API Key
- `403` — Email not Verified, or API Limit Reached, or API Key Disabled
- `429` — Too Many Requests

---

[API](https://skmtc.net/namsor/apis/namsor-api-v2.md) · [All operations](https://skmtc.net/namsor/apis/namsor-api-v2/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/namsor/namsor-api-v2/revisions/305e4f6eeaf5/schema)