generated: '2026-08-25'
method: derived
source: openapi/metabolon-portal-api-openapi.yml
docs: null
note: >-
  Metabolon publishes no rate-limit documentation. The contract proves rate limiting EXISTS — eight
  operations declare a 429 response returning ProblemDetails — but states no quota, no window, no burst
  and no response headers. No X-RateLimit-*, RateLimit-* or Retry-After header is declared on any response
  in any of the four specs, so an agent that hits the limit gets a 429 with no machine-readable signal
  telling it how long to wait. limit_count is an honest zero: nothing numeric is published.
limit_count: 0
rate_limiting_present: true
rate_limiting_evidence: '429 Too Many Requests declared on 8 operations (StudyBuilder and Users_ApproveUser families), body components.schemas.ProblemDetails'
status_code_on_exhaustion: 429
headers:
  request: []
  response: []
  retry_after: false
  note: 'No rate-limit response headers are declared anywhere in the published contracts.'
limits: []
rate_limited_operations:
- openapi/metabolon-portal-api-openapi.yml#StudyBuilder_PostEstimate
- openapi/metabolon-portal-api-openapi.yml#StudyBuilder_PostEstimate2
- openapi/metabolon-portal-api-openapi.yml#StudyBuilder_PostDraft
- openapi/metabolon-portal-api-openapi.yml#StudyBuilder_PostDraft2
- openapi/metabolon-portal-api-openapi.yml#StudyBuilder_PostQuoteSummaryEmail
- openapi/metabolon-portal-api-openapi.yml#StudyBuilder_PostQuoteSummaryEmail2
- openapi/metabolon-portal-api-openapi.yml#Users_ApproveUser
- openapi/metabolon-portal-api-openapi.yml#Users_ApproveUser2