Basetrip API

openapi: 3.0.3
info:
  title: Basetrip API
  description: >-
    The Basetrip API provides travel intelligence data including country and city
    information, travel phrases, safety ratings, visa requirements, cost of living
    data, and health advisories. Designed to help travel platforms differentiate
    their products and improve traveler experiences.
  version: 3.0.0
  contact:
    name: Basetrip Support
    url: https://www.thebasetrip.com/en/documentation/v3
  termsOfService: https://www.thebasetrip.com/en/terms
servers:
  - url: https://api.thebasetrip.com/v3
    description: Basetrip API v3
security:
  - ApiKeyAuth: []
paths:
  /countries:
    get:
      operationId: listCountries
      summary: List Countries
      description: Get all countries with their names, slugs, and alpha-2 codes.
      tags:
        - Countries
      responses:
        '200':
          description: List of countries
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CountryListResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /countries/{id}:
    get:
      operationId: getCountry
      summary: Get Country
      description: Get detailed information for a specific country by slug or alpha-2 code.
      tags:
        - Countries
      parameters:
        - name: id
          in: path
          required: true
          description: Country slug or alpha-2 code (e.g., "france" or "FR")
          schema:
            type: string
      responses:
        '200':
          description: Country details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CountryDetail'
        '404':
          $ref: '#/components/responses/NotFound'
  /countries/{id}/cities:
    get:
      operationId: listCitiesByCountry
      summary: List Cities By Country
      description: Get all cities for a specific country including their names and slugs.
      tags:
        - Cities
      parameters:
        - name: id
          in: path
          required: true
          description: Country slug or alpha-2 code
          schema:
            type: string
      responses:
        '200':
          description: List of cities
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CityListResponse'
        '404':
          $ref: '#/components/responses/NotFound'
  /cities/{id}:
    get:
      operationId: getCity
      summary: Get City
      description: Get detailed information for a specific city by slug.
      tags:
        - Cities
      parameters:
        - name: id
          in: path
          required: true
          description: City slug
          schema:
            type: string
      responses:
        '200':
          description: City details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CityDetail'
        '404':
          $ref: '#/components/responses/NotFound'
  /countries/{id}/phrases:
    get:
      operationId: listPhrasesByCountry
      summary: List Phrases By Country
      description: Get travel phrases for the primary language of a country.
      tags:
        - Phrases
      parameters:
        - name: id
          in: path
          required: true
          description: Country slug or alpha-2 code
          schema:
            type: string
        - name: language
          in: query
          description: Source language for translations (en, fr, de, it, es)
          schema:
            type: string
            enum: [en, fr, de, it, es]
            default: en
      responses:
        '200':
          description: Travel phrases
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PhraseListResponse'
        '404':
          $ref: '#/components/responses/NotFound'
  /countries/{id}/safety:
    get:
      operationId: getCountrySafety
      summary: Get Country Safety
      description: Get safety ratings and travel advisories for a country.
      tags:
        - Safety
      parameters:
        - name: id
          in: path
          required: true
          description: Country slug or alpha-2 code
          schema:
            type: string
      responses:
        '200':
          description: Safety information
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SafetyInfo'
        '404':
          $ref: '#/components/responses/NotFound'
  /countries/{id}/cost:
    get:
      operationId: getCountryCost
      summary: Get Country Cost
      description: Get cost of living and travel budget estimates for a country.
      tags:
        - Cost
      parameters:
        - name: id
          in: path
          required: true
          description: Country slug or alpha-2 code
          schema:
            type: string
      responses:
        '200':
          description: Cost information
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CostInfo'
        '404':
          $ref: '#/components/responses/NotFound'
  /countries/{id}/visa:
    get:
      operationId: getVisaRequirements
      summary: Get Visa Requirements
      description: Get visa requirements for a destination country based on passport country.
      tags:
        - Visa
      parameters:
        - name: id
          in: path
          required: true
          description: Destination country slug or alpha-2 code
          schema:
            type: string
        - name: passport
          in: query
          required: true
          description: Passport country alpha-2 code
          schema:
            type: string
      responses:
        '200':
          description: Visa requirements
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VisaInfo'
        '404':
          $ref: '#/components/responses/NotFound'
  /countries/{id}/health:
    get:
      operationId: getCountryHealth
      summary: Get Country Health
      description: Get health advisories, vaccination requirements, and medical information for a country.
      tags:
        - Health
      parameters:
        - name: id
          in: path
          required: true
          description: Country slug or alpha-2 code
          schema:
            type: string
      responses:
        '200':
          description: Health information
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HealthInfo'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
  responses:
    Unauthorized:
      description: Invalid or missing API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  schemas:
    Country:
      type: object
      properties:
        name:
          type: string
          description: Country name in English
        slug:
          type: string
          description: URL-friendly country slug
        code:
          type: string
          description: ISO alpha-2 country code
        continent:
          type: string
          description: Continent name
      required:
        - name
        - slug
        - code
    CountryListResponse:
      type: object
      properties:
        countries:
          type: array
          items:
            $ref: '#/components/schemas/Country'
        count:
          type: integer
          description: Total number of countries
    CountryDetail:
      allOf:
        - $ref: '#/components/schemas/Country'
        - type: object
          properties:
            capital:
              type: string
              description: Capital city name
            currency:
              type: string
              description: ISO 4217 currency code
            languages:
              type: array
              items:
                type: string
              description: Official languages
            population:
              type: integer
              description: Approximate population
            timezone:
              type: string
              description: Primary timezone
            callingCode:
              type: string
              description: International dialing code
    City:
      type: object
      properties:
        name:
          type: string
          description: City name
        slug:
          type: string
          description: URL-friendly city slug
        country:
          type: string
          description: Country alpha-2 code
      required:
        - name
        - slug
    CityListResponse:
      type: object
      properties:
        cities:
          type: array
          items:
            $ref: '#/components/schemas/City'
        count:
          type: integer
    CityDetail:
      allOf:
        - $ref: '#/components/schemas/City'
        - type: object
          properties:
            population:
              type: integer
            timezone:
              type: string
            latitude:
              type: number
              format: double
            longitude:
              type: number
              format: double
    Phrase:
      type: object
      properties:
        category:
          type: string
          description: Phrase category (e.g., Greetings, Dining, Transportation)
        original:
          type: string
          description: Phrase in source language
        translation:
          type: string
          description: Phrase in destination language
        phonetic:
          type: string
          description: Phonetic pronunciation guide
    PhraseListResponse:
      type: object
      properties:
        language:
          type: string
          description: Destination language code
        phrases:
          type: array
          items:
            $ref: '#/components/schemas/Phrase'
    SafetyInfo:
      type: object
      properties:
        country:
          type: string
          description: Country slug
        overallRating:
          type: string
          enum: [Safe, Moderate, Risky, High Risk, Extreme]
        advisoryLevel:
          type: integer
          minimum: 1
          maximum: 4
          description: Advisory level (1=normal, 4=do not travel)
        categories:
          type: object
          properties:
            crime:
              type: string
            terrorism:
              type: string
            naturalDisasters:
              type: string
        notes:
          type: string
          description: Additional safety notes
    CostInfo:
      type: object
      properties:
        country:
          type: string
        currency:
          type: string
        budgetPerDay:
          type: number
          description: Budget traveler daily cost in USD
        midRangePerDay:
          type: number
          description: Mid-range daily cost in USD
        luxuryPerDay:
          type: number
          description: Luxury daily cost in USD
        categories:
          type: object
          properties:
            accommodation:
              type: number
            food:
              type: number
            transport:
              type: number
    VisaInfo:
      type: object
      properties:
        destination:
          type: string
          description: Destination country code
        passport:
          type: string
          description: Passport country code
        requirement:
          type: string
          enum: [Visa Free, Visa on Arrival, e-Visa, Visa Required, No Admission]
        maxStay:
          type: integer
          description: Maximum stay in days
        notes:
          type: string
    HealthInfo:
      type: object
      properties:
        country:
          type: string
        vaccinations:
          type: array
          items:
            type: object
            properties:
              name:
                type: string
              requirement:
                type: string
                enum: [Required, Recommended, Optional]
        healthRisks:
          type: array
          items:
            type: string
        drinkingWater:
          type: string
          enum: [Safe, Unsafe, Boil Advisories]
        medicalFacilities:
          type: string
          enum: [Excellent, Good, Limited, Very Limited]
    ErrorResponse:
      type: object
      properties:
        error:
          type: string
        message:
          type: string
        statusCode:
          type: integer