generated: '2026-08-12'
method: searched
source: https://developer.egym.com/mms-api-v2/rate-limits
docs:
- https://developer.egym.com/mms-api-v2/rate-limits
- https://developer.egym.com/mms-api-v2/errors#429-too-many-requests
limit_count: 1
rate_limits:
- api: EGYM MMS API V2
  scope: per-api-key
  algorithm: token-bucket
  bucket_capacity: 60
  refill: 60 tokens per 10 seconds (6 tokens/second)
  limit: 6
  window: 1s
  burst: 60
  cost_per_request: 1
  exhaustion_status: 429
  note: 'Each API key gets its own token bucket with a capacity of 60 tokens refilling
    continuously at 6 tokens/second. Because refill is continuous rather than a fixed
    10-second window, sustained traffic at or below 6 requests/second can continue
    indefinitely and bursts are permitted up to the tokens currently accumulated.
    Changed from a fixed time-window limiter to token-bucket on 2026-07-21 per the
    published change log.'
  source: https://developer.egym.com/mms-api-v2/rate-limits
response_headers:
- header: X-RateLimit-Remaining
  api: EGYM MMS API V2
  description: Tokens remaining in the caller's bucket. EGYM documents this on every
    response and instructs clients to use it to slow down proactively before hitting
    the limit.
  source: https://developer.egym.com/mms-api-v2/errors#429-too-many-requests
  in_openapi: false
retry_guidance:
  status: 429
  retry_after_header: false
  documented: 'On 429, wait before retrying and reduce sustained request rate. EGYM
    notes that because the bucket refills continuously rather than resetting on a fixed
    schedule, staying under the documented rate is sufficient to avoid further 429s.
    No Retry-After header is documented.'
  source: https://developer.egym.com/mms-api-v2/errors#429-too-many-requests
gaps:
- 'X-RateLimit-Remaining is documented in prose but is NOT declared as a response header
  in any of the eight OpenAPI documents, so a generated client will not surface it.'
- 'No published rate limits were found for the Data Hub API, Data Export API, the two
  Equipment Vendor APIs, the User Connect API or MMS API v1 — only MMS API V2 documents
  a limiter.'
- 'No Retry-After header and no RateLimit-* (RFC 9331/IETF draft) headers are documented.'