specification: API Commons Rate Limits
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/RateLimits
provider: OpenAPI Generator
providerId: openapi-generator
created: '2026-05-04'
modified: '2026-08-06'
generated: '2026-08-06'
method: probed
source: live probe of https://api.openapi-generator.tech/api/gen/clients + https://openapi-generator.tech/docs
tags:
  - Code Generation
  - Documentation
  - Open Source
  - OpenAPI
  - SDK
  - Rate Limiting
description: >-
  OpenAPI Generator publishes no rate limits for its hosted Online Generator API,
  and the service signals none at runtime. This file previously carried scaffold
  defaults — free/professional/enterprise tiers with per-minute and per-month
  quotas keyed to an API key — that the provider has never published and that do
  not exist: the API has no API keys and no tiers. Those fabricated values were
  removed on 2026-08-06 and replaced with the probed result.
published: false
signalled: false
headers: {}
headers_note: >-
  A live GET https://api.openapi-generator.tech/api/gen/clients on 2026-08-06
  returned 200 with no RateLimit-Limit, RateLimit-Policy, X-RateLimit-*,
  Retry-After or equivalent header. Response headers were date, content-type,
  server (cloudflare), nel, vary, cf-cache-status, report-to, cf-ray, alt-svc.
responseCodes: {}
limits: []
plans_note: >-
  There are no tiers. The project is Apache-2.0 and free; there is no API key, no
  sign-up, and no paid plan for the hosted generator.
evidence:
  - {url: 'https://api.openapi-generator.tech/api/gen/clients', http_status: 200, rate_limit_headers: none, fetched: '2026-08-06'}
  - {url: 'https://openapi-generator.tech/docs/online', http_status: 200, documents_rate_limits: false, fetched: '2026-08-06'}
consumer_guidance: >-
  Because no limit is declared, none can be relied on. Any throttling in front of
  api.openapi-generator.tech is Cloudflare edge behaviour, undeclared to clients
  and subject to change without notice. Clients should back off on 429 or 5xx
  regardless, and anything that must be reliable should run the CLI, Docker image
  or build-tool plugin locally instead of calling the hosted service. See
  cli/openapi-generator-cli.yml.
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com