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: Chemius
providerId: chemius
created: '2026-05-04'
# Provenance: the 2026-05-04 bulk sweep wrote a scaffold here that declared X-RateLimit-* headers,
# a 429 throttle code and per-tier request quotas. NONE of that was ever published by Chemius; it
# was invented default content (roadmap#35). Replaced on 2026-09-05 with the measured finding after
# reading every public Chemius API page and the pricing comparison table. Method upgraded to
# searched because the absence was established by reading the provider's own pages, not assumed.
method: searched
modified: '2026-09-05'
verified: '2026-09-05'
limit_count: 0
headers_published: false
headers_note: >-
  Chemius publishes no rate-limit response headers, no throttle status code and no documented
  quota of any kind. The seven Chemius APIs are sold as flat monthly add-ons (EUR 100-300/month
  each) with no call allowance stated anywhere on the pricing page or on any of the per-API pages.
  An integrator cannot learn a budget before buying, and an agent gets no runtime signal.
sources:
  - url: https://www.chemius.net/our-pricing/
    status: 200
    note: Full plan comparison table, including the seven-row "APIs" section. No request quota, no throttle policy.
  - url: https://www.chemius.net/api/
    status: 200
    note: API landing page. Describes what each API does; states no limits.
  - url: https://www.chemius.net/safety-data-sheet-api/
    status: 200
  - url: https://www.chemius.net/erp-api/
    status: 200
  - url: https://www.chemius.net/adr-api/
    status: 200
gate: >-
  Every Chemius API page ends at "Book a call & ask for the API documentation", so any published
  rate limits would live in the reference handed over after a sales call. Nothing rate-limit
  related is reachable without that call.
tags:
  - Rate Limiting
  - Chemicals
  - Compliance
  - Safety Data Sheets
description: >-
  Measured record of Chemius rate limits: there are none published. Recorded as an honest zero
  rather than omitted, so the absence is countable and so the earlier scaffold values cannot be
  mistaken for provider-published limits.
limits: []