ToolsMAINTAINED1 token / call

Name Intelligence API

Turn a first name into structured intelligence: gender with a real probability, all-time popularity, active years, peak year and per-decade history — built from 146 years of official US Social Security records (1880-2025, 105,966 distinct names) plus the Census Bureau's 162,253-surname frequency file. One call answers what gender-inference services charge monthly for: Michael -> male at 99.5% over 4.4M records; ambiguous names answer honestly (Taylor -> female at 74%); unknown strings return null instead of a guess. Batch up to 100 names per POST for CRM and list enrichment. Search names by prefix, gender or popularity; pull full statistics with decade-by-decade counts (watch Ada peak in 1918 and revive in the 2020s); look up any surname's rank, count and per-100k frequency (Smith #1, Nguyen #38). All source data is public domain and refreshes with the SSA's annual May release. Built for CRM enrichment, personalization, analytics, form autofill and demographic research — statistical inference from official records, not identity claims about individuals. Complements our Baby Names API (popularity browsing) with the data-enrichment side. Self-hosted — no third-party calls at request time.

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response.json

{
  "ok": true,
  "count": 4,
  "results": [
    {
      "name": "Grace",
      "gender": "female",
      "probability": 0.9974,
      "count": 536340
    },
    {
      "name": "Liam",
      "gender": "male",
      "probability": 0.9985,
      "count": 359085
    },
    {
      "name": "Taylor",
      "gender": "female",
      "probability": 0.7441,
      "count": 443686
    },
    {
      "name": "Zzyzx",
      "gender": "male",
      "probability": 1,
      "count": 10
    }
  ]
}

7endpoints

1tokens / call

99.9%uptime SLA

Lowavg latency

Why developers pick this API

Production-ready

Production Ready

Battle-tested infrastructure with a 99.9% uptime SLA. Rate limits are generous, responses are consistent.

Simple Integration

Standard REST + JSON. Works with any HTTP client. Copy-ready code snippets in 4 languages.

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Code snippets

One install. Every endpoint.

No proprietary SDKs needed. Any HTTP client works. Pick your language and paste.

3languages

7endpoints

RESTarchitecture

1key for all APIs

Fully typed responses — auto-completion in your IDE
Tracks the API in lockstep — new endpoints land same day
One key works across 20+ APIs on the platform

import axios from 'axios';

const { data } = await axios.get(
  '{API_URL}',
  { headers: { 'X-Api-Key': process.env.API_KEY } }
);

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Developer playground

Explore the endpoints

Browse request parameters and inspect live example responses.

Available Endpoints

Request Parameters

API URL

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Headers

X-Api-Key

Content-Type

Request Body

application/json

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Target:

Client:

import axios from 'axios';

const url = '{API_URL}';
const body = {
  "names": [
    "Grace",
    "Liam",
    "Taylor"
  ]
};

const { data } = await axios.post(url, body, {
  headers: {
    'X-Api-Key': 'YOUR_API_KEY',
    'Content-Type': 'application/json'
  }
});

Pricing

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500 tokens / month

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