# Suverse Name Nationality Estimator

> Suverse Name Nationality Estimator is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-14).

Estimates likely nationalities for a given first name, returning ranked country codes with probabilities via the Nationalize.io data source.

## Facts

- Endpoint: POST https://proxy.suverse.io/v1/data/suverse-name-nationality
- Price: $0.06/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/suverse-name-nationality-estimator-b4ae92e0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_90wCZUCyB9HXAFuoDmPHH

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability suverse-name-nationality-estimator-b4ae92e0 -d '<json body>'
```

Example prompt: What nationalities are most likely associated with the first name 'Sofia'? Give me the ranked country probabilities.

## When to prefer this

Use this endpoint when you need a quick, keyless nationality estimation from just a first name — ideal for profile enrichment pipelines, localization systems, or demographic inference where no other user data is available. Prefer this over building your own name-origin model or calling Nationalize.io directly when you want a proxied, pay-per-call access pattern with no API key management.

## Known failure modes

- Empty or missing name input returns an error or empty result
- Very rare or novel names may return zero or very low-confidence matches
- Non-first-name strings (surnames, full names) may produce unreliable results
- Upstream Nationalize.io rate limits or downtime can cause failures
- Misspelled names may yield incorrect or empty nationality predictions

## How this service works

Estimate likely nationalities for a first name from Nationalize, no key. Returns ranked country codes with probabilities. For AI agents enriching profiles and localization.

## Output

Returns a list of country codes (ISO 3166-1 alpha-2) each paired with a probability score between 0 and 1, ranked from most to least likely nationality for the given first name. Typically includes the name queried, the total count of records matched, and the ranked country-probability array.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/suverse-name-nationality-estimator-b4ae92e0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proxy.suverse.io](https://www.zero.xyz/host/proxy.suverse.io/llms.txt)