specification: API Commons Rate Limits
specificationVersion: '0.1'
provider: Inscribe
providerId: inscribe
created: '2026-06-12'
modified: '2026-06-12'

description: >
  Inscribe API endpoints are rate limited. The default tier allows 300 requests
  per IP address per 2-minute window (~2.5 requests/second). A higher tier
  of 3,000 requests per IP address per 5-minute window (~10 requests/second)
  is available upon request through Inscribe's in-app support channel.
  Rate-limited requests receive a 429 Too Many Requests HTTP status code.
  The unauthenticated reachability check endpoint is also rate limited.

retryAfter: true
throttled: 429

limits:
  - scope: ip
    metric: requests
    limit: 300
    timeFrame: 120
    timeFrameUnit: seconds
    tier: default
    description: >
      Default rate limit of 300 requests per IP address per 2-minute period
      (~2.5 requests/second). Applies to all authenticated API endpoints.
    upgradeAvailable: true

  - scope: ip
    metric: requests
    limit: 3000
    timeFrame: 300
    timeFrameUnit: seconds
    tier: elevated
    description: >
      Higher-tier rate limit of 3,000 requests per IP address per 5-minute
      period (~10 requests/second). Available upon request via in-app
      messaging to the Inscribe team.
    upgradeAvailable: false

fileConstraints:
  - name: maxFileSize
    value: 50
    unit: MB
    description: Maximum file size per document upload
  - name: maxPdfPages
    value: 350
    unit: pages
    description: Maximum number of pages per PDF document

supportedFormats:
  - PDF
  - JPG
  - PNG
  - octet-stream

source: https://docs.inscribe.ai/docs/are-the-endpoints-rate-limited