generated: '2026-07-17'
method: searched
source: https://github.com/500px/legacy-api-documentation/blob/master/README.md
status: retired
note: >-
  Cross-cutting request/response conventions of the retired 500px v1 API, captured from the legacy
  documentation for historical reference.
authentication:
  style: oauth1 + consumer_key
  detail: see authentication/500px-authentication.yml
media_type:
  request: application/x-www-form-urlencoded
  response: application/json
pagination:
  style: page-number
  params:
    page: 1-based page index
    rpp: results per page (max 100)
  response_fields:
  - current_page
  - total_pages
  - total_items
rate_limiting:
  quota: 1,000,000 API requests per month per account
  effective: '2014-05-01'
  signaling: not documented in legacy spec
versioning:
  style: uri-path
  detail: version prefix in path (/v1/)
error_envelope:
  style: json
  detail: >-
    Errors returned as JSON with an HTTP status code and an "error" message field; no RFC 9457
    problem+json usage.
idempotency:
  supported: false
cross_links:
  authentication: authentication/500px-authentication.yml
  lifecycle: lifecycle/500px-lifecycle.yml