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: ModMed
providerId: modernizing-medicine
created: '2026-08-04'
modified: '2026-08-04'
generated: '2026-08-04'
method: searched
tags:
- Rate Limiting
- Healthcare
- FHIR
description: >-
  ModMed publishes a single default API rate limit for the EMA Proprietary API — 1,250 calls per
  minute per API key, which the docs describe as roughly 20 calls per second. Vendors are asked to
  throttle well below that ceiling and stagger calls; exceeding it returns HTTP 429. No per-tier
  limits and no X-RateLimit-* response headers are published, and no separate published limit
  exists for the ONC Certified FHIR API.
sources:
- https://portal.api.modmed.com/reference/rate-limiting
- https://portal.api.modmed.com/reference/response-codes
headers:
  requestId: null
  rateLimitRemaining: null
responseCodes:
  throttled: 429
limits:
- name: EMA Proprietary API calls
  scope: api_key
  metric: requests_per_minute
  limit: 1250
  timeFrame: minute
  note: Documented as "roughly 20 calls per second"; ModMed recommends staying well under that.
- name: EMA Proprietary API calls (recommended ceiling)
  scope: api_key
  metric: requests_per_second
  limit: 20
  timeFrame: second
  note: Guidance figure derived from the same published 1,250/minute limit, not a second quota.
escalation:
  process: Contact the person who provisioned your credentials to review higher-volume needs
  contact: synapsys@modmed.com
x-evidence:
  fetched: '2026-08-04'
  urls:
  - url: https://portal.api.modmed.com/reference/rate-limiting.md
    http_status: 200