# Provenance stamped 2026-10-07 (roadmap#943): written by an API Evangelist sweep (dated 2026-06-13 by the file itself), not
# harvested from the provider. `method: generated` so the economics campaign may replace it with a
# dated, verbatim transcription; every figure below is unverified until it does.
method: generated
generated: '2026-06-13'
specification: API Commons Plans
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/Plans
provider: ISS Location API (Open Notify)
providerId: iss-api
created: '2026-06-13'
modified: '2026-06-13'
tags:
  - Space
  - ISS
  - Free
  - Public API
  - Open Source
description: >-
  The Open Notify ISS API is a free, open-source service with a single access
  tier. There is no paid plan, no API key requirement, and no registration
  process. Usage is subject to the provider's informal fair-use expectations;
  no formal SLA or support contract is offered.
plans:
  - id: iss-api-free
    name: Free
    type: free
    description: >-
      Unrestricted public access to the ISS Current Location and People in Space
      endpoints. No API key, account, or registration is required. The service
      is community-funded and open-source; uptime is best-effort with no
      formal SLA.
    entries:
      - label: API Requests
        description: >-
          No hard monthly quota is documented. Requests are unauthenticated and
          the service is open to the public. Polite, non-abusive use is expected.
        name: api_requests
        type: quota
        metric: requests
        limit: -1
        timeFrame: month
        geo: global
        domains:
          - http://api.open-notify.org
        unit: 1
        price: '0.00'
        userMultiplied: false
      - label: Rate Limit
        description: >-
          No formal rate limit is published. The service is built for
          interactive and lightweight integrations; sustained high-frequency
          polling is discouraged.
        name: rate_limit
        type: rate
        metric: requests_per_second
        limit: -1
        timeFrame: second
        geo: global
        domains:
          - http://api.open-notify.org
        unit: 1
        price: '0.00'
        userMultiplied: false
    elements:
      - name: ISS Current Location Endpoint (GET /iss-now.json)
      - name: People in Space Endpoint (GET /astros.json)
      - name: JSON response format
      - name: No authentication required
      - name: Community GitHub support
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com
x-canonical:
  generated: '2026-10-08'
  vocabulary: all/0-working/economics/plans-canonical.yml
  models:
  - free
  units:
  - rate
  - request
  plans:
  - name: Free
    access: free
    model: free
    model_how: derived
    units:
    - rate
    - request
    periods:
    - month
    - second