Agify.io Age Prediction API

openapi: 3.0.3
info:
  title: Agify.io Age Prediction API
  description: Predict the age of a person based on their first name. Returns estimated age, prediction confidence (count), and supports country localization and batch requests of up to 10 names. Generated from documentation.
  version: v1
  x-generated-from: documentation
servers:
- url: https://api.agify.io
  description: Agify.io Production API
tags:
- name: Age Prediction
  description: Predict a person's age from their first name
paths:
  /:
    get:
      operationId: predictAge
      summary: Agify.io Predict Age from Name
      description: Estimate the age of a person based on their first name. Returns the predicted age, the number of data points used for the prediction, and optionally a country-localized estimate when a country_id is provided.
      tags:
      - Age Prediction
      parameters:
      - name: name
        in: query
        description: First name to predict age for. For batch requests use name[] array syntax.
        schema:
          type: string
        example: John
      - name: country_id
        in: query
        required: false
        description: ISO 3166-1 alpha-2 country code for country-localized age prediction.
        schema:
          type: string
        example: US
      - name: apikey
        in: query
        required: false
        description: API key for authenticated requests beyond the free tier (100 req/day).
        schema:
          type: string
        example: abc123def456
      responses:
        '200':
          description: Successful age prediction
          headers:
            X-Rate-Limit-Limit:
              description: Maximum number of requests allowed in the current period.
              schema:
                type: integer
            X-Rate-Limit-Remaining:
              description: Remaining requests in the current period.
              schema:
                type: integer
            X-Rate-Limit-Reset:
              description: Unix timestamp when the rate limit resets.
              schema:
                type: integer
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AgePrediction'
              examples:
                PredictAge200Example:
                  summary: Default predictAge 200 response
                  x-microcks-default: true
                  value:
                    count: 12345
                    name: John
                    age: 42
        '401':
          description: Unauthorized — invalid API key
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '402':
          description: Payment Required — monthly quota exceeded
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '422':
          description: Unprocessable Entity — invalid input parameters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '429':
          description: Too Many Requests — daily rate limit exceeded
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    AgePrediction:
      type: object
      description: Age prediction result for a single name.
      properties:
        count:
          type: integer
          description: Number of data points used to make the prediction. Higher count means greater confidence.
          example: 12345
        name:
          type: string
          description: The name that was evaluated.
          example: John
        age:
          type: integer
          description: Predicted age for the given name. Null if there is insufficient data.
          example: 42
        country_id:
          type: string
          description: The country code used for localization, if provided.
          example: US
    ErrorResponse:
      type: object
      description: Error response returned when a request fails.
      properties:
        error:
          type: string
          description: Human-readable error message.
          example: Invalid API key