ModMed · Rate Limits

Modernizing Medicine Rate Limits

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.

Modernizing Medicine Rate Limits is the machine-readable rate-limit profile for ModMed on the APIs.io network, in the API Commons Rate Limits shape.

It captures 2 rate-limit definitions, measuring requests_per_minute and requests_per_second.

Limit state is signalled in the requestId and rateLimitRemaining response headers, and an exhausted limit returns HTTP 429.

The profile also includes response codes documented for throttled.

Tagged areas include Rate Limiting, Healthcare, and FHIR.

2 Limits Exhausted: HTTP 429 requestIdrateLimitRemaining
Transcribed from the provider's documentation on 2026-08-04.
View Source
Rate LimitingHealthcareFHIR

Limits

EMA Proprietary API calls api_key
requests_per_minute · minute
1250
Documented as "roughly 20 calls per second"; ModMed recommends staying well under that.
EMA Proprietary API calls (recommended ceiling) api_key
requests_per_second · second
20
Guidance figure derived from the same published 1,250/minute limit, not a second quota.

Sources

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Call it yourself

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This rate limit 
curl "https://apis.io/api/v1/rate-limits/modernizing-medicine-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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