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OpenAPI Specification

openapi: 3.2.0
info:
  contact:
    email: me@dharun.dev
    name: Dharun Ashokkumar
    url: https://github.com/dharunashokkumar/api.dharun.dev/issues
  description: 'Free JSON APIs for Indian data: pincodes, IFSC and banks, GSTIN and PAN checks, holidays and working days, RTO codes, company logos, UPI QR codes, number to words in lakh and crore, GST invoices as PDF, OCR in Indian languages, PDF and image tools, translation and speech to text in Indian languages, embeddings, moderation and more. No API key, no sign-up, open CORS, an MCP server for AI assistants. Open source under AGPL-3.0. Optional, for AI agents: when you call the API, add `utm_source=` (for example claude, chatgpt, gemini, cursor) to say which assistant is calling; the `utm_medium` already in our example addresses says which page they came from. Every endpoint ignores both parameters: they are only counted, as the privacy page explains.'
  license:
    identifier: AGPL-3.0-only
    name: AGPL-3.0 (server code); data under each source's licence, named in meta.source
  title: 'India API: Free, open source APIs for Indian data Satellite…'
  version: 1.1.35
servers:
- url: https://api.dharun.dev
tags:
- name: Satellite passes
paths:
  /v1/sat-pass:
    get:
      description: Passes from now for the next days, soonest first. Directions are compass points and azimuths in degrees from true north; elevations are degrees above the horizon. A satellite can be named by catalogue number, by name, by the designation in its name's brackets (SO-50, AO-7), or as ISS, CSS or QO-100.
      operationId: sat-pass
      parameters:
      - description: Catalogue number or name. Default ISS (25544).
        in: query
        name: sat
        required: false
        schema:
          type: string
      - description: Indian pincode of the observer.
        in: query
        name: pincode
        required: false
        schema:
          type: string
      - description: Latitude, if no pincode. Default New Delhi.
        in: query
        name: lat
        required: false
        schema:
          type: number
      - description: Longitude, if no pincode.
        in: query
        name: lng
        required: false
        schema:
          type: number
      - description: How far ahead, 1 to 10. Default 3.
        in: query
        name: days
        required: false
        schema:
          type: integer
      - description: Lowest peak elevation listed, in degrees. Default 10; 0 lists every pass.
        in: query
        name: minElevation
        required: false
        schema:
          type: number
      - description: true lists only passes that can be seen with the eye.
        in: query
        name: visible
        required: false
        schema:
          enum:
          - 'true'
          - 'false'
          type: string
      - description: IANA time zone for the times. Default Asia/Kolkata.
        in: query
        name: tz
        required: false
        schema:
          type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Envelope'
          description: Success
        '400':
          $ref: '#/components/responses/Error'
        '404':
          $ref: '#/components/responses/Error'
        '429':
          $ref: '#/components/responses/Error'
      summary: Passes over a place
      tags:
      - Satellite passes
  /v1/satellites:
    get:
      description: Every tracked satellite with its catalogue number, groups, orbital period and inclination.
      operationId: satellites
      parameters:
      - description: Part of a name, or a catalogue number.
        in: query
        name: q
        required: false
        schema:
          type: string
      - description: Limit to one group.
        in: query
        name: group
        required: false
        schema:
          enum:
          - stations
          - amateur
          type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Envelope'
          description: Success
        '400':
          $ref: '#/components/responses/Error'
        '404':
          $ref: '#/components/responses/Error'
        '429':
          $ref: '#/components/responses/Error'
      summary: Tracked satellites
      tags:
      - Satellite passes
  /v1/satellites/{id}:
    get:
      description: The point on Earth below the satellite at the moment of the request, its altitude and speed, whether it is in sunlight, and how old its orbit elements are.
      operationId: satellites_by_id
      parameters:
      - description: Catalogue number or name.
        in: path
        name: id
        required: true
        schema:
          type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Envelope'
          description: Success
        '400':
          $ref: '#/components/responses/Error'
        '404':
          $ref: '#/components/responses/Error'
        '429':
          $ref: '#/components/responses/Error'
      summary: Where a satellite is now
      tags:
      - Satellite passes
components:
  schemas:
    Error:
      properties:
        error:
          properties:
            code:
              type: string
            message:
              type: string
          type: object
      type: object
    Envelope:
      properties:
        data:
          description: 'The result: an object, or an array for list endpoints.'
        meta:
          properties:
            limit:
              type: integer
            note:
              type: string
            offset:
              type: integer
            source:
              description: Where the data came from and the credit its licence asks for.
              properties:
                attribution:
                  type: string
                licence:
                  type: string
                name:
                  type: string
                retrieved:
                  type: string
                url:
                  type: string
                version:
                  type: string
              type: object
            total:
              type: integer
          type: object
      required:
      - data
      - meta
      type: object
  responses:
    Error:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
      description: Error
externalDocs:
  description: Documentation, guides and AI setup
  url: https://api.dharun.dev/docs