specification: API Commons Rate Limits
specificationVersion: '0.1'
generated: '2026-07-17'
method: searched
provider: Apperio
providerId: apperio
created: '2026-07-17'
modified: '2026-07-17'
tags:
  - Rate Limiting
  - Legal Spend
description: >-
  Apperio publishes an acceptable-usage policy rather than per-tier rate limits.
  Requests sharing an authorization token must be made in series (not in
  parallel), with a ceiling of 10,000 requests per hour per token. Clients must
  handle HTTP 429 Too Many Requests. Contact Customer Success to raise limits.
sources:
  - https://developer.apperio.com/
responseCodes:
  throttled: 429
limits:
  - name: Requests per authorization token
    scope: token
    metric: requests_per_hour
    limit: 10000
    timeFrame: hour
  - name: Concurrency
    scope: token
    metric: parallel_requests
    limit: 1
    timeFrame: instant
    note: Requests from the same authorization token should be made in series, not in parallel.
notes:
  - Apperio reserves the right to suspend API access where usage contravenes the acceptable-usage policy.
  - The API should not be used to bulk-duplicate Apperio-held data; page-size is capped to avoid large one-time extractions.